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111-398: The Chablis region of Burgundy is classified according to four tiers of Appellation d'origine contrôlée (AOC) designation. The top two are the crus of Chablis and include the 7 Grand cru vineyards followed by the lower Premier crus. Wines made entirely from fruit from these vineyards are entitled to list their wines as cru classé Chablis on the wine label . Below these tiers are

222-492: A potential alcohol level of at least 11 percent, at least 10.5 percent for Premiers Crus and 9.5 percent for AOC Chablis vineyards. Yields in Grands Crus must be limited to 45 hectoliters per hectare (3.3 tons per acre) with a 20% allowance for increased yields. There is no official regulation on the use of mechanical harvesting , but most Grand Cru producers prefer hand picking because human pickers tend to be more delicate with

333-635: A vineyard soil type that is calcareous , and known as Kimmeridge Clay . All of the Chablis Grand Cru and Premier Cru vineyards are planted on this primarily Kimmeridgean soil, which imparts a distinctively mineral, flinty note to the wines. Other areas, particularly most of the Petit Chablis vineyards, are planted on slightly younger Portlandian soil, still of similar structure. The chalk landscape resembles some areas of Champagne and Sancerre. A serious viticultural concern for Chablis vineyard owners

444-538: A Berriasian–Barremian warm-dry phase, an Aptian–Santonian warm-wet phase, and a Campanian–Maastrichtian cool-dry phase. As in the Cenozoic, the 400,000 year eccentricity cycle was the dominant orbital cycle governing carbon flux between different reservoirs and influencing global climate. The location of the Intertropical Convergence Zone (ITCZ) was roughly the same as in the present. The cooling trend of

555-560: A long association with Chardonnay, the wines of Chablis can be overshadowed by the New World expression of the varietal, and by other Burgundian Chardonnays such as Montrachet , Corton-Charlemagne and Meursault . The wide semi-generic use of the word "Chablis" outside of France is still seen in describing almost any white wine , regardless of where it was made and from what grapes. Cretaceous The Cretaceous ( IPA : / k r ɪ ˈ t eɪ ʃ ə s / krih- TAY -shəss )

666-674: A permitted 1,800 hectares (4,448 acres) in the Petit Chablis appellation were planted. Soil and slope plays a major role in delineating the quality differences. Many of the Premier Crus, and all the Grand Crus vineyards, are planted along the valley of the Serein river as it flows into the Yonne. The Grand Crus and some of the most highly rated Premiers Crus (Mont de Milieu, Montée de Tonnerre, Fourchaume) are located on southwest facing slopes; these receive

777-557: A renewed commitment to quality production and ushered in technological advances that would allow viticulture to be more profitable and reliable in this cool northern climate. In 1938, the Institut National des Appellations d'Origine created the Appellation d'origine contrôlée (AOC) region for Chablis that mandated the grape variety (Chardonnay) and acceptable winemaking and viticultural practices within delineated boundaries. One of

888-660: A straight shell, flourished in the seas along with reef-building rudist clams. Inoceramids were also particularly notable among Cretaceous bivalves, and they have been used to identify major biotic turnovers such as at the Turonian-Coniacian boundary. Predatory gastropods with drilling habits were widespread. Globotruncanid foraminifera and echinoderms such as sea urchins and starfish (sea stars) thrived. Ostracods were abundant in Cretaceous marine settings; ostracod species characterised by high male sexual investment had

999-424: A tasting committee of other Union members to ensure they meet the required quality. These tastings are conducted blind. At the turn of the 21st century, there were 40 Premier Cru vineyards. The names of many of these vineyards do not appear on wine labels. The INAO permits the use of "umbrella names": smaller, lesser known vineyards are allowed to use the name of a nearby more famous Premier Cru vineyard. Some of

1110-651: A vineyard at Chablis to the Abbey in 1186. In 1245 the chronicler Salimbene di Adam described a Chablis wine. Chardonnay is believed to have first been planted in Chablis by the Cistercians of Pontigny Abbey in the 12th century, and from there spread south to the rest of the Burgundy region. The Chablis area became part of the Duchy of Burgundy in the 15th century. There are records in

1221-478: A wine in barrels. Hygiene was difficult to control with these older barrels, and they could develop faults in the wine , including discoloration. These old barrels fell out of favor, replaced by stainless steel fermentation tanks which also controlled temperatures. The use of oak became controversial in the Chablis when some winemakers in the late 20th century went back to wooden barrels in winemaking, using oak barrels. So-called "traditionalist" winemakers dismissed

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1332-551: A ~0.6 °C increase in temperature. The latter warming interval, occurring at the very end of the Cretaceous, was triggered by the activity of the Deccan Traps. The LKEPCI lasted into the Late Palaeocene , when it gave way to another supergreenhouse interval. The production of large quantities of magma, variously attributed to mantle plumes or to extensional tectonics , further pushed sea levels up, so that large areas of

1443-578: Is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era , as well as the longest. At around 79   million years, it is the ninth and longest geological period of the entire Phanerozoic . The name is derived from the Latin creta , ' chalk ', which is abundant in the latter half of the period. It is usually abbreviated K , for its German translation Kreide . The Cretaceous

1554-755: Is a trademark of the wines and can be noticeable in the bouquet. The acidity can mellow with age and Chablis are some of the longest living examples of Chardonnay. The wines often have a "flinty" note, sometimes described as " goût de pierre à fusil " (gunflint) and sometimes as "steely". Some examples of Chablis can have an earthy "wet stone" flavor that intensifies as it ages, before mellowing into delicate honeyed notes. Like most white Burgundies, Chablis can benefit from some bottle age . While producers' styles and vintage can play an influential role, Grand Cru Chablis can generally age for well over 15 years while many Premiers Crus will age well for at least 10 years. Secondary grape varieties grown locally are permitted in

1665-467: Is basic AOC Chablis or Petit Chablis oaked. While chaptalization was widely practiced for most of the 20th century, there has been a trend of riper vintages in recent years, producing grapes with higher sugar levels that have diminished the need to chaptalize. The main Chablis Appellation d'Origine Contrôlée was designated on January 13, 1938, but the junior appellation of Petit Chablis

1776-405: Is believed to impart more finesse and structure to the wines. Other areas, particularly the vast majority of Petit Chablis vineyards, are planted on slightly younger Portlandian soil. There is one Grand Cru in Chablis with seven officially delineated Grand Cru climats , covering an area of 247 acres (100 hectares), all located on one southwest facing hill overlooking the town of Chablis . There

1887-509: Is closer to the southern Aube district of Champagne than the rest of Burgundy. The region encompasses 15 by 9 kilometres ( 9 + 1 ⁄ 2  mi ×  5 + 1 ⁄ 2  mi) across 25 communes located along the Serein river. The soil is Kimmeridge Clay with outcrops of the same chalk layer that extends from Sancerre up to the White Cliffs of Dover , giving a name to the paleontologists' Cretaceous period . The Grands Crus,

1998-603: Is found in England, northern France, the low countries , northern Germany , Denmark and in the subsurface of the southern part of the North Sea . Chalk is not easily consolidated and the Chalk Group still consists of loose sediments in many places. The group also has other limestones and arenites . Among the fossils it contains are sea urchins , belemnites , ammonites and sea reptiles such as Mosasaurus . In southern Europe,

2109-403: Is frost protection. During the bud break period of a grapevine's annual cycle , the Chablis region is vulnerable to springtime frost, from March to early May, which can compromise the crop yield . Formerly, the financial risk involved saw many producers turn to polyculture agriculture, pulling up vineyards to plant alternative crops. The 1957 vintage was hit particularly hard by frost damage:

2220-525: Is much smaller than for white wines of Côte de Beaune . Wines not vinified in barrel will instead be vinified in stainless steel . Chablis lies about sixteen kilometres (10 mi) east of Auxerre in the Yonne department, situated roughly halfway between the Côte d'Or and Paris . Of France's wine-growing areas, only Champagne , Lorraine, Alsace and parts of Grand Auxerrois have a more northerly location. Chablis

2331-509: Is now used worldwide. In many parts of the world, alternative local subdivisions are still in use. From youngest to oldest, the subdivisions of the Cretaceous period are: The lower boundary of the Cretaceous is currently undefined, and the Jurassic–Cretaceous boundary is currently the only system boundary to lack a defined Global Boundary Stratotype Section and Point (GSSP). Placing a GSSP for this boundary has been difficult because of

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2442-550: Is often considered an "unofficial" Grand Cru. The Bureau Interprofessionnel des Vins de Bourgogne (BIVB) does recognize La Moutonne, but the seven Grand Cru vineyards officially recognized by the INAO are (from northwest to southeast): Bougros, Les Preuses, Vaudésir, Grenouilles, Valmur, Les Clos and Blanchot (also known as Les Blanchots). Together, the Grand Cru vineyards account for around 3% of Chablis annual yearly production. While

2553-406: Is one vineyard, La Moutonne, located on this hill between the Grand Cru vineyards of Les Preuses and Vaudésir that is considered an "unofficial" Grand Cru and it will appear on wine labels . However, the Institut National des Appellations d'Origine (INAO) does not recognize La Moutonne as a Grand Cru. At the turn of the 21st century, there were 40 Premier cru vineyards in Chablis. In 2009,

2664-564: Is too lean to support it. Vintages that are exceedingly warm tend to produce fat, flabby wines that are too low in acidity. Frost can be countered by heaters, and aspersion by sprinklers to form an ice layer. The exceptionally poor 1972 Chablis suffered frost at vintage time. The region of Chablis lies on the eastern edge of the Paris Basin . The region's oldest soil dates back to the Upper Jurassic age, over 180 million years ago and includes

2775-680: The Mancos Shale of western North America. These shales are an important source rock for oil and gas , for example in the subsurface of the North Sea. In northwestern Europe, chalk deposits from the Upper Cretaceous are characteristic for the Chalk Group , which forms the white cliffs of Dover on the south coast of England and similar cliffs on the French Normandian coast. The group

2886-684: The North American Cordillera , as the Nevadan orogeny was followed by the Sevier and Laramide orogenies . Gondwana had begun to break up during the Jurassic Period, but its fragmentation accelerated during the Cretaceous and was largely complete by the end of the period. South America , Antarctica , and Australia rifted away from Africa (though India and Madagascar remained attached to each other until around 80 million years ago); thus,

2997-543: The Selli Event . Early Aptian tropical sea surface temperatures (SSTs) were 27–32 °C, based on TEX 86 measurements from the equatorial Pacific. During the Aptian, Milankovitch cycles governed the occurrence of anoxic events by modulating the intensity of the hydrological cycle and terrestrial runoff. The early Aptian was also notable for its millennial scale hyperarid events in the mid-latitudes of Asia. The BAWI itself

3108-560: The Terrain Crétacé , using strata in the Paris Basin and named for the extensive beds of chalk ( calcium carbonate deposited by the shells of marine invertebrates , principally coccoliths ), found in the upper Cretaceous of Western Europe . The name Cretaceous was derived from the Latin creta , meaning chalk . The twofold division of the Cretaceous was implemented by Conybeare and Phillips in 1822. Alcide d'Orbigny in 1840 divided

3219-707: The Turonian Age, based on isotopic evidence. However, this has subsequently been suggested to be the result of inconsistent isotopic proxies, with evidence of polar rainforests during this time interval at 82° S. Rafting by ice of stones into marine environments occurred during much of the Cretaceous, but evidence of deposition directly from glaciers is limited to the Early Cretaceous of the Eromanga Basin in southern Australia . Flowering plants (angiosperms) make up around 90% of living plant species today. Prior to

3330-475: The tuatara ) disappeared from North America and Europe after the Early Cretaceous , and were absent from North Africa and northern South America by the early Late Cretaceous . The cause of the decline of Rhynchocephalia remains unclear, but has often been suggested to be due to competition with advanced lizards and mammals. They appear to have remained diverse in high-latitude southern South America during

3441-496: The "umbrella" vineyards are Mont de Milieu, Montée de Tonnerre, Fourchaume, Vaillons, Montmains, Beauroy, Vaudevey, Vaucoupin, Vosgros, Les Fourneaux, Côte de Jouan and Les Beauregards. In general, Premier Cru wines have at least half a degree less alcohol by volume and tend to have less aromatics and intensity in flavors. All Chablis is made 100% from the Chardonnay grape. Some wine experts, such as Jancis Robinson , believe that

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3552-468: The 19th century there were nearly 40,000 hectares (98,840 acres) of vines planted in Chablis with vineyards stretching from the town of Chablis to Joigny and Sens along the Yonne. Some Champagne producers used Chablis as a basis for a sparkling cuvée . With the French Revolution , the monastic vineyards became biens nationaux , and were auctioned off. The new owners were mostly local, and

3663-964: The Albian regularly expanded northward in tandem with expansions of subtropical high pressure belts. The Cedar Mountain Formation's Soap Wash flora indicates a mean annual temperature of between 19 and 26 °C in Utah at the Albian-Cenomanian boundary. Tropical SSTs during the Cenomanian-Turonian Thermal Maximum were at least 30 °C, though one study estimated them as high as between 33 and 42 °C. An intermediate estimate of ~33-34 °C has also been given. Meanwhile, deep ocean temperatures were as much as 15 to 20 °C (27 to 36 °F) warmer than today's; one study estimated that deep ocean temperatures were between 12 and 20 °C during

3774-565: The Cenozoic Era   —   the ichthyosaurs , last remaining temnospondyls ( Koolasuchus ), and nonmammalian cynodonts ( Tritylodontidae )   —   were already extinct millions of years before the event occurred. Coccolithophorids and molluscs , including ammonites , rudists , freshwater snails , and mussels , as well as organisms whose food chain included these shell builders, became extinct or suffered heavy losses. For example, ammonites are thought to have been

3885-429: The Chablis wine industry as in other areas of Burgundy. Trends towards estate bottling and co-operatives have shifted the economics towards the individual growers and producer. The La Chablisienne co-operative makes nearly a third of all wine produced in Chablis today. In recent years, Chablis producers have fought hard to protect the Chablis designation, using legal means to make foreign countries respect it. Despite

3996-621: The Coniacian through the Maastrichtian. During the Cretaceous, the late- Paleozoic -to-early-Mesozoic supercontinent of Pangaea completed its tectonic breakup into the present-day continents , although their positions were substantially different at the time. As the Atlantic Ocean widened, the convergent-margin mountain building ( orogenies ) that had begun during the Jurassic continued in

4107-605: The Cretaceous is sharply defined, being placed at an iridium -rich layer found worldwide that is believed to be associated with the Chicxulub impact crater , with its boundaries circumscribing parts of the Yucatán Peninsula and extending into the Gulf of Mexico . This layer has been dated at 66.043 Mya. At the end of the Cretaceous, the impact of a large body with the Earth may have been

4218-555: The Cretaceous is usually a marine system consisting of competent limestone beds or incompetent marls . Because the Alpine mountain chains did not yet exist in the Cretaceous, these deposits formed on the southern edge of the European continental shelf , at the margin of the Tethys Ocean . During the Cretaceous, the present North American continent was isolated from the other continents. In

4329-527: The Cretaceous seas. Stagnation of deep sea currents in middle Cretaceous times caused anoxic conditions in the sea water leaving the deposited organic matter undecomposed. Half of the world's petroleum reserves were laid down at this time in the anoxic conditions of what would become the Persian Gulf and the Gulf of Mexico. In many places around the world, dark anoxic shales were formed during this interval, such as

4440-770: The French Cretaceous into five étages (stages): the Neocomian , Aptian, Albian, Turonian, and Senonian, later adding the Urgonian between Neocomian and Aptian and the Cenomanian between the Albian and Turonian. The Cretaceous is divided into Early and Late Cretaceous epochs , or Lower and Upper Cretaceous series . In older literature, the Cretaceous is sometimes divided into three series: Neocomian (lower/early), Gallic (middle) and Senonian (upper/late). A subdivision into 12 stages , all originating from European stratigraphy,

4551-645: The Jurassic, the North Atlantic already opened, leaving a proto-ocean between Europe and North America. From north to south across the continent, the Western Interior Seaway started forming. This inland sea separated the elevated areas of Laramidia in the west and Appalachia in the east. Three dinosaur clades found in Laramidia (troodontids, therizinosaurids and oviraptorosaurs) are absent from Appalachia from

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4662-563: The LKEPCI. During this period of relatively cool temperatures, the ITCZ became narrower, while the strength of both summer and winter monsoons in East Asia was directly correlated to atmospheric CO 2 concentrations. Laramidia likewise had a seasonal, monsoonal climate. The Maastrichtian was a time of chaotic, highly variable climate. Two upticks in global temperatures are known to have occurred during

4773-521: The Late Cretaceous, where lizards remained rare, with their remains outnumbering terrestrial lizards 200:1. Choristoderes , a group of freshwater aquatic reptiles that first appeared during the preceding Jurassic, underwent a major evolutionary radiation in Asia during the Early Cretaceous, which represents the high point of choristoderan diversity, including long necked forms such as Hyphalosaurus and

4884-534: The Late Cretaceous-Early Palaeogene Cool Interval (LKEPCI). Tropical SSTs declined from around 35 °C in the early Campanian to around 28 °C in the Maastrichtian. Deep ocean temperatures declined to 9 to 12 °C, though the shallow temperature gradient between tropical and polar seas remained. Regional conditions in the Western Interior Seaway changed little between the MKH and

4995-462: The Les Preuses vineyard receives the most sun among the Grand Crus and tends to produce the most full bodied wines; Valmur is noted for its smooth texture and aromatic bouquet; Vaudésir tends to produce wines with intense flavors and spicy notes. Of all the Grand Cru vineyards, Les Clos is the largest in the area at 25 hectares (61 acres). Hugh Johnson describes the wines from this Grand Cru as having

5106-610: The MKH. Mean annual temperatures at the poles during the MKH exceeded 14 °C. Such hot temperatures during the MKH resulted in a very gentle temperature gradient from the equator to the poles; the latitudinal temperature gradient during the Cenomanian-Turonian Thermal Maximum was 0.54 °C per ° latitude for the Southern Hemisphere and 0.49 °C per ° latitude for the Northern Hemisphere, in contrast to present day values of 1.07 and 0.69 °C per ° latitude for

5217-516: The MKH. The poles were so warm that ectothermic reptiles were able to inhabit them. Beginning in the Santonian, near the end of the MKH, the global climate began to cool, with this cooling trend continuing across the Campanian. This period of cooling, driven by falling levels of atmospheric carbon dioxide, caused the end of the MKH and the transition into a cooler climatic interval, known formally as

5328-404: The Maastrichtian, bucking the trend of overall cooler temperatures during the LKEPCI. Between 70 and 69 Ma and 66–65 Ma, isotopic ratios indicate elevated atmospheric CO 2 pressures with levels of 1000–1400 ppmV and mean annual temperatures in west Texas between 21 and 23 °C (70 and 73 °F). Atmospheric CO 2 and temperature relations indicate a doubling of pCO 2 was accompanied by

5439-528: The South Atlantic and Indian Oceans were newly formed. Such active rifting lifted great undersea mountain chains along the welts, raising eustatic sea levels worldwide. To the north of Africa the Tethys Sea continued to narrow. During most of the Late Cretaceous, North America would be divided in two by the Western Interior Seaway , a large interior sea, separating Laramidia to the west and Appalachia to

5550-565: The Southern and Northern hemispheres, respectively. This meant weaker global winds, which drive the ocean currents, and resulted in less upwelling and more stagnant oceans than today. This is evidenced by widespread black shale deposition and frequent anoxic events . Tropical SSTs during the late Albian most likely averaged around 30 °C. Despite this high SST, seawater was not hypersaline at this time, as this would have required significantly higher temperatures still. On land, arid zones in

5661-560: The Tethys to the Arctic Ocean and enabling biotic exchange between the two oceans. At the peak of the Cretaceous transgression , one-third of Earth's present land area was submerged. The Cretaceous is justly famous for its chalk ; indeed, more chalk formed in the Cretaceous than in any other period in the Phanerozoic . Mid-ocean ridge activity—or rather, the circulation of seawater through

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5772-425: The ancestors of modern-day birds also diversified. They inhabited every continent, and were even found in cold polar latitudes. Pterosaurs were common in the early and middle Cretaceous, but as the Cretaceous proceeded they declined for poorly understood reasons (once thought to be due to competition with early birds , but now it is understood avian adaptive radiation is not consistent with pterosaur decline ). By

5883-473: The best ageing potential among Chablis and developing Sauternes -like aromas after some bottle age. The Union des Grands Crus de Chablis (UGCC) was launched in March 2000 as a syndicate restricted to Grand Cru proprietors, with mission "to defend and promote the quality of Chablis Grand Cru wines". Members are bound to abide by a charter that covers wine making and sales. Grand Cru makers must submit their wines to

5994-433: The best vineyards in the area, all lie on a single, small slope, facing southwest and located just north of the town of Chablis. During the Middle Ages the Catholic Church , particularly Cistercian monks, became a major influence in establishing the economic and commercial interest of viticulture for the region. Pontigny Abbey was founded in 1114, and the monks planted vines along the Serein. Anséric de Montréal gave

6105-408: The continental crust were covered with shallow seas. The Tethys Sea connecting the tropical oceans east to west also helped to warm the global climate. Warm-adapted plant fossils are known from localities as far north as Alaska and Greenland , while dinosaur fossils have been found within 15 degrees of the Cretaceous south pole . It was suggested that there was Antarctic marine glaciation in

6216-544: The early and mid-Cretaceous (becoming extinct during the late Cretaceous Cenomanian-Turonian anoxic event ), plesiosaurs throughout the entire period, and mosasaurs appearing in the Late Cretaceous. Sea turtles in the form of Cheloniidae and Panchelonioidea lived during the period and survived the extinction event. Panchelonioidea is today represented by a single species; the leatherback sea turtle . The Hesperornithiformes were flightless, marine diving birds that swam like grebes . Baculites , an ammonite genus with

6327-437: The east, then receded late in the period, leaving thick marine deposits sandwiched between coal beds. Bivalve palaeobiogeography also indicates that Africa was split in half by a shallow sea during the Coniacian and Santonian, connecting the Tethys with the South Atlantic by way of the central Sahara and Central Africa, which were then underwater. Yet another shallow seaway ran between what is now Norway and Greenland, connecting

6438-535: The end of the AACS, which ended around 111 Ma with the Paquier/Urbino Thermal Maximum, giving way to the Mid-Cretaceous Hothouse (MKH), which lasted from the early Albian until the early Campanian. Faster rates of seafloor spreading and entry of carbon dioxide into the atmosphere are believed to have initiated this period of extreme warmth, along with high flood basalt activity. The MKH was punctuated by multiple thermal maxima of extreme warmth. The Leenhardt Thermal Event (LTE) occurred around 110 Ma, followed shortly by

6549-448: The end of the Cretaceous. The high sea level and warm climate of the Cretaceous meant large areas of the continents were covered by warm, shallow seas, providing habitat for many marine organisms. The Cretaceous was named for the extensive chalk deposits of this age in Europe, but in many parts of the world, the deposits from the Cretaceous are of marine limestone , a rock type that is formed under warm, shallow marine conditions. Due to

6660-411: The end of the period only three highly specialized families remained; Pteranodontidae , Nyctosauridae , and Azhdarchidae . The Liaoning lagerstätte ( Yixian Formation ) in China is an important site, full of preserved remains of numerous types of small dinosaurs, birds and mammals, that provides a glimpse of life in the Early Cretaceous. The coelurosaur dinosaurs found there represent types of

6771-407: The enlarged ridges—enriched the oceans in calcium ; this made the oceans more saturated, as well as increased the bioavailability of the element for calcareous nanoplankton . These widespread carbonates and other sedimentary deposits make the Cretaceous rock record especially fine. Famous formations from North America include the rich marine fossils of Kansas 's Smoky Hill Chalk Member and

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6882-528: The extinction fed on insects , larvae , worms , and snails, which in turn fed on dead plant and animal matter. Scientists theorise that these organisms survived the collapse of plant-based food chains because they fed on detritus . In stream communities , few groups of animals became extinct. Stream communities rely less on food from living plants and more on detritus that washes in from land. This particular ecological niche buffered them from extinction. Similar, but more complex patterns have been found in

6993-505: The first records of the gharial-like Neochoristodera , which appear to have evolved in the regional absence of aquatic neosuchian crocodyliformes. During the Late Cretaceous the neochoristodere Champsosaurus was widely distributed across western North America. Due to the extreme climatic warmth in the Arctic, choristoderans were able to colonise it too during the Late Cretaceous. In the seas, rays , modern sharks and teleosts became common. Marine reptiles included ichthyosaurs in

7104-419: The generic Bourgogne AOC wine. These include Aligoté , César , Gamay , Melon de Bourgogne , Pinot noir , Pinot blanc , Pinot gris (known locally as Pinot Beurot), Sauvignon blanc , Sacy , and Tressot . For most of the 20th century, Chablis wine was produced more for the export than the domestic French market, which tended to favor the Côte d'Or Chardonnays. Négociants are not as influential in

7215-427: The genus Berriasella , but its use as a stratigraphic indicator has been questioned, as its first appearance does not correlate with that of C. alpina . The boundary is officially considered by the International Commission on Stratigraphy to be approximately 145 million years ago, but other estimates have been proposed based on U-Pb geochronology, ranging as young as 140 million years ago. The upper boundary of

7326-464: The grapes and can distinguish better between ripe and unripe bunches . Over the rest of the Chablis region, mechanical harvesting was used by around 80% of the vineyards at the turn of the 21st century. The traditional style of vine training in Chablis is to have the vine trained low to the ground for warmth with four cordons stretching out sideways from the trunk. The 20th century saw many advances in winemaking technology and practices—particularly

7437-570: The group Maniraptora , which includes modern birds and their closest non-avian relatives, such as dromaeosaurs , oviraptorosaurs , therizinosaurs , troodontids along with other avialans . Fossils of these dinosaurs from the Liaoning lagerstätte are notable for the presence of hair-like feathers . Insects diversified during the Cretaceous, and the oldest known ants , termites and some lepidopterans , akin to butterflies and moths , appeared. Aphids , grasshoppers and gall wasps appeared. Rhynchocephalians (which today only includes

7548-412: The high sea level, there was extensive space for such sedimentation . Because of the relatively young age and great thickness of the system, Cretaceous rocks are evident in many areas worldwide. Chalk is a rock type characteristic for (but not restricted to) the Cretaceous. It consists of coccoliths , microscopically small calcite skeletons of coccolithophores , a type of algae that prospered in

7659-497: The highest rates of extinction and turnover. Thylacocephala , a class of crustaceans, went extinct in the Late Cretaceous. The first radiation of the diatoms (generally siliceous shelled, rather than calcareous ) in the oceans occurred during the Cretaceous; freshwater diatoms did not appear until the Miocene . Calcareous nannoplankton were important components of the marine microbiota and important as biostratigraphic markers and recorders of environmental change. The Cretaceous

7770-413: The impact of a large asteroid that formed the Chicxulub crater in the Gulf of Mexico. The end of the Cretaceous is defined by the abrupt Cretaceous–Paleogene boundary (K–Pg boundary), a geologic signature associated with the mass extinction that lies between the Mesozoic and Cenozoic Eras . The Cretaceous as a separate period was first defined by Belgian geologist Jean d'Omalius d'Halloy in 1822 as

7881-420: The introduction of temperature-controlled fermentation and controlled inducing of malolactic fermentation . One winemaking issue that is still contested in the region is the use of oak . Historically Chablis was aged in old wooden feuillette barrels that were essentially neutral: they did not impart the characteristic oak flavors (vanilla, cinnamon, toast, coconut, etc.) that are today associated with ageing

7992-692: The last epoch of the Jurassic, the Tithonian, continued into the Berriasian, the first age of the Cretaceous. The North Atlantic seaway opened and enabled the flow of cool water from the Boreal Ocean into the Tethys. There is evidence that snowfalls were common in the higher latitudes during this age, and the tropics became wetter than during the Triassic and Jurassic. Glaciation was restricted to high- latitude mountains, though seasonal snow may have existed farther from

8103-564: The late Valanginian (~ 134 million years ago) found in Israel and Italy, initially at low abundance. Molecular clock estimates conflict with fossil estimates, suggesting the diversification of crown-group angiosperms during the Late Triassic or the Jurassic, but such estimates are difficult to reconcile with the heavily sampled pollen record and the distinctive tricolpate to tricolporoidate (triple grooved) pollen of eudicot angiosperms. Among

8214-465: The late Cretaceous, and all else that depended on them suffered, as well. Herbivorous animals, which depended on plants and plankton as their food, died out as their food sources became scarce; consequently, the top predators , such as Tyrannosaurus rex , also perished. Yet only three major groups of tetrapods disappeared completely; the nonavian dinosaurs , the plesiosaurs and the pterosaurs . The other Cretaceous groups that did not survive into

8325-563: The latest Albian. Approximately 94 Ma, the Cenomanian-Turonian Thermal Maximum occurred, with this hyperthermal being the most extreme hothouse interval of the Cretaceous and being associated with a sea level highstand. Temperatures cooled down slightly over the next few million years, but then another thermal maximum, the Coniacian Thermal Maximum, happened, with this thermal event being dated to around 87 Ma. Atmospheric CO 2 levels may have varied by thousands of ppm throughout

8436-600: The lower designations of basic Chablis AOC and Petit Chablis . Soil quality and hill slope play a major role in delineating the differences. Many of the Premier Crus, and all the Grand Crus vineyards, are planted along valley of the Serein river as it flows into the Yonne with the best sites located on a southwest facing slope that receives the maximum amount of sun exposure. All of Chablis' Grand Cru vineyards and many of their better Premier Cru vineyards are planted on primarily Kimmeridgean soil (a composition of limestone , clay and tiny fossilized oyster shells) which

8547-674: The l’Arboudeyesse Thermal Event (ATE) a million years later. Following these two hyperthermals was the Amadeus Thermal Maximum around 106 Ma, during the middle Albian. Then, around a million years after that, occurred the Petite Verol Thermal Event (PVTE). Afterwards, around 102.5 Ma, the Event 6 Thermal Event (EV6) took place; this event was itself followed by the Breistroffer Thermal Maximum around 101 Ma, during

8658-861: The main Burgundian winemaking town of Beaune located more than 100 km (62 mi) away. This makes the region of Chablis relatively isolated from other winemaking regions with the southern vineyards of the Champagne in the Aube department being the closest winemaking neighbor. The Chablis wine region has much in common with Champagne province when it comes to climate. It has a semi- continental climate without maritime influence . The peak summer growing season can be hot; and wintertime can be long, cold and harsh, with frosty conditions lasting to early May. Years that experience too much rain and low temperature tend to produce wines excessively high in acidity and fruit that

8769-488: The maximum amount of sun exposure. The rest of the Premiers Crus are on southeast facing slopes. There are seven officially delineated Grand Cru climats , covering an area of 100 hectares (247 acres), all located on one southwest facing hill overlooking the town of Chablis at elevations between 150–200 metres (490–660 ft). One vineyard there, La Moutonne, between the Grand Cru vineyards of Les Preuses and Vaudésir,

8880-563: The mid-15th century of Chablis wine being shipped to Flanders and Picardy . But in February 1568 the town was besieged by the Huguenots , who burned part of it. The Seine river, easily accessible via the nearby Yonne river, gave the Chablis wine producers a near monopoly on the lucrative Parisian market. In the 17th century, the English discovered the wine and began importing large volumes. By

8991-460: The mid-late 20th century opened up prosperous worldwide markets to Chablis and vineyard plantings saw a period of steady increase. By 2004, vineyard plantings in Chablis reached a little over 4,000 hectares (10,000 acres). Located in northeast France, the Chablis region is considered the northernmost extension of the Burgundy wine region but it is separated from the Côte d'Or by the Morvan hills, with

9102-508: The middle Cretaceous, becoming the dominant group of land plants by the end of the period, coincident with the decline of previously dominant groups such as conifers. The oldest known fossils of grasses are from the Albian , with the family having diversified into modern groups by the end of the Cretaceous. The oldest large angiosperm trees are known from the Turonian (c. 90 Mya) of New Jersey, with

9213-679: The middle of the Cretaceous. During the Early Cretaceous, flowering plants appeared and began to rapidly diversify, becoming the dominant group of plants across the Earth by the end of the Cretaceous, coincident with the decline and extinction of previously widespread gymnosperm groups. The Cretaceous (along with the Mesozoic) ended with the Cretaceous–Paleogene extinction event , a large mass extinction in which many groups, including non-avian dinosaurs, pterosaurs , and large marine reptiles , died out, widely thought to have been caused by

9324-408: The most promising candidates for fixing the Jurassic–Cretaceous boundary. In particular, the first appearance Calpionella alpina , coinciding with the base of the eponymous Alpina subzone, has been proposed as the definition of the base of the Cretaceous. The working definition for the boundary has often been placed as the first appearance of the ammonite Strambergella jacobi , formerly placed in

9435-497: The objectives of the AOC establishment was to protect the name "Chablis", which by this time was already being inappropriately used to refer to just about any white wine made from any number of white grape varieties all across the world. In the early 1960s, technological advances in vineyard frost protection minimized some of the risk and financial cost associated with variable vintages and climate of Chablis. The worldwide "Chardonnay-boom" of

9546-824: The oceans. Extinction was more severe among animals living in the water column than among animals living on or in the seafloor. Animals in the water column are almost entirely dependent on primary production from living phytoplankton, while animals living on or in the ocean floor feed on detritus or can switch to detritus feeding. The largest air-breathing survivors of the event, crocodilians and champsosaurs , were semiaquatic and had access to detritus. Modern crocodilians can live as scavengers and can survive for months without food and go into hibernation when conditions are unfavorable, and their young are small, grow slowly, and feed largely on invertebrates and dead organisms or fragments of organisms for their first few years. These characteristics have been linked to crocodilian survival at

9657-420: The official list was expanded to 89 vineyards. The names of many of these vineyards do not appear on wine labels because of an INAO allowance that permits the use of "umbrella names" - where smaller, lesser known vineyards are allowed to use the name of a nearby more famous Premier cru vineyard. Seventeen of the most well known "umbrella" vineyards are bolded below. Chablis (wine) The grapevines around

9768-629: The oldest records of Angiosperm macrofossils are Montsechia from the Barremian aged Las Hoyas beds of Spain and Archaefructus from the Barremian-Aptian boundary Yixian Formation in China. Tricolpate pollen distinctive of eudicots first appears in the Late Barremian, while the earliest remains of monocots are known from the Aptian. Flowering plants underwent a rapid radiation beginning during

9879-452: The poles. Many of the dominant taxonomic groups present in modern times can be ultimately traced back to origins in the Cretaceous. During this time, new groups of mammals and birds appeared, including the earliest relatives of placentals & marsupials ( Eutheria and Metatheria respectively), and the earliest crown group birds. Acanthomorph fish, the most diverse group of modern vertebrates, appeared in aquatic habitats around

9990-508: The poles. After the end of the first age, however, temperatures began to increase again, with a number of thermal excursions, such as the middle Valanginian Weissert Thermal Excursion (WTX), which was caused by the Paraná-Etendeka Large Igneous Province's activity. It was followed by the middle Hauterivian Faraoni Thermal Excursion (FTX) and the early Barremian Hauptblatterton Thermal Event (HTE). The HTE marked

10101-409: The political upheaval saw small farmers involved as part-time vignerons . The English market continued to prosper. The 19th-century Russian novel Anna Karenina by Leo Tolstoy mentions "classic Chablis" as a commonplace choice of wine. The end of the 19th century was a difficult time for the Chablis growers. Firstly, with new railway systems linking all parts of the country with Paris, there

10212-412: The principal food of mosasaurs , a group of giant marine lizards related to snakes that became extinct at the boundary. Omnivores , insectivores , and carrion -eaters survived the extinction event, perhaps because of the increased availability of their food sources. At the end of the Cretaceous, there seem to have been no purely herbivorous or carnivorous mammals . Mammals and birds that survived

10323-423: The producer can have a marked influence, each of the Grand Cru vineyards is noted for its particular terroir characteristic. Tom Stevenson notes that Blanchot produces the most delicate wine with floral aromas; Bougros is the least expressive but still has vibrant fruit flavors; Les Clos tends to produce the most complex wines with pronounced minerality; Grenouilles produces very aromatic wines with racy, elegance;

10434-547: The punctuation mark at the end of a progressive decline in biodiversity during the Maastrichtian age. The result was the extinction of three-quarters of Earth's plant and animal species. The impact created the sharp break known as the K–Pg boundary (formerly known as the K–T boundary). Earth's biodiversity required substantial time to recover from this event, despite the probable existence of an abundance of vacant ecological niches . Despite

10545-467: The regional authorities reported that only 11 cases (132 bottles) of wine were produced. In the 1960s, technological advances in frost protection introduced preventive measures, such as smudge pots and aspersion irrigation to the region. Smudge pots work by providing direct heat to the vines while aspersion involves spraying the vines with water as soon as temperatures hit 0 °C (32 °F) and maintaining persistent coverage. The water freezes on

10656-744: The rise of angiosperms, during the Jurassic and the Early Cretaceous, the higher flora was dominated by gymnosperm groups, including cycads , conifers , ginkgophytes , gnetophytes and close relatives, as well as the extinct Bennettitales . Other groups of plants included pteridosperms or "seed ferns", a collective term that refers to disparate groups of extinct seed plants with fern-like foliage, including groups such as Corystospermaceae and Caytoniales . The exact origins of angiosperms are uncertain, although molecular evidence suggests that they are not closely related to any living group of gymnosperms. The earliest widely accepted evidence of flowering plants are monosulcate (single-grooved) pollen grains from

10767-447: The severity of the K-Pg extinction event, there were significant variations in the rate of extinction between and within different clades . Species that depended on photosynthesis declined or became extinct as atmospheric particles blocked solar energy . As is the case today, photosynthesizing organisms, such as phytoplankton and land plants , formed the primary part of the food chain in

10878-422: The strong regionality of most biostratigraphic markers, and the lack of any chemostratigraphic events, such as isotope excursions (large sudden changes in ratios of isotopes ) that could be used to define or correlate a boundary. Calpionellids , an enigmatic group of planktonic protists with urn-shaped calcitic tests briefly abundant during the latest Jurassic to earliest Cretaceous, have been suggested as

10989-611: The terrestrial fauna of the late Cretaceous Hell Creek Formation . Other important Cretaceous exposures occur in Europe (e.g., the Weald ) and China (the Yixian Formation ). In the area that is now India, massive lava beds called the Deccan Traps were erupted in the very late Cretaceous and early Paleocene. Palynological evidence indicates the Cretaceous climate had three broad phases:

11100-420: The town of Chablis make a dry white wine. In comparison with the white wines from the rest of Burgundy, Chablis wine has typically much less influence of oak . The amount of barrel maturation, if any, is a stylistic choice that varies widely among Chablis producers. Many Grand Cru and Premier Cru wines receive some maturation in oak barrels, but typically the time in barrel and the proportion of new barrels

11211-483: The trunk having a preserved diameter of 1.8 metres (5.9 ft) and an estimated height of 50 metres (160 ft). During the Cretaceous, ferns in the order Polypodiales , which make up 80% of living fern species, would also begin to diversify. On land, mammals were generally small sized, but a very relevant component of the fauna , with cimolodont multituberculates outnumbering dinosaurs in some sites. Neither true marsupials nor placentals existed until

11322-406: The turn of the 21st century, covering an area of 750 hectares (1,853 acres). Next is the generic AOC Chablis which, at 2,860 hectares (7,067 acres), is the largest appellation by far in the region and the one exhibits the most variability between producers and vintages. At the lowest end of the classification is "Petit Chablis" which includes the outlying land. As of 2004, 560 hectares (1,380 acres) of

11433-751: The ultimate end of the Tithonian-early Barremian Cool Interval (TEBCI). During this interval, precession was the dominant orbital driver of environmental changes in the Vocontian Basin. For much of the TEBCI, northern Gondwana experienced a monsoonal climate. A shallow thermocline existed in the mid-latitude Tethys. The TEBCI was followed by the Barremian-Aptian Warm Interval (BAWI). This hot climatic interval coincides with Manihiki and Ontong Java Plateau volcanism and with

11544-609: The usage of oak as counter to the "Chablis style" or terroir , while "modernist" winemakers embrace its use though not to the extent of a " New World " Chardonnay. The amount of char in oak barrels used in Chablis is often low, which limits the "toastiness" that is perceived in the wine. Rarely will a producer use oak for both fermentation and maturation. Grand Cru and Premier Cru wines are most likely to see oak: proponents believe that they have necessary structure and enough extract to avoid being overwhelmed by oak influence. While there are style differences among producers, rarely

11655-628: The very end, but a variety of non-marsupial metatherians and non-placental eutherians had already begun to diversify greatly, ranging as carnivores ( Deltatheroida ), aquatic foragers ( Stagodontidae ) and herbivores ( Schowalteria , Zhelestidae ). Various "archaic" groups like eutriconodonts were common in the Early Cretaceous, but by the Late Cretaceous northern mammalian faunas were dominated by multituberculates and therians , with dryolestoids dominating South America . The apex predators were archosaurian reptiles , especially dinosaurs , which were at their most diverse stage. Avians such as

11766-500: The vine, shielding it with a protective layer of ice that functions igloo -style, retaining heat within the vine. While cost is a factor in using smudge pots, there is a risk with the aspersion method if the constant sprinkling of water is interrupted causing worse damage to the vine. There is no such protection against hail , which in 2016 caused serious difficulties for some Chablis vignerons. At harvest time, AOC regulations stipulate grapes for Grand Cru vineyard must be picked with

11877-408: The wine from Chablis is one of the "purest" expressions of the varietal character of Chardonnay, because of the simple style of winemaking favored in this region. Chablis winemakers want to emphasize the terroir of the calcareous soil and cooler climate that help maintain high acidity . Chablis wines are characterized by their greenish-yellow color and clarity. The racy, green apple -like acidity

11988-432: Was a period with a relatively warm climate , resulting in high eustatic sea levels that created numerous shallow inland seas . These oceans and seas were populated with now- extinct marine reptiles , ammonites , and rudists , while dinosaurs continued to dominate on land. The world was largely ice-free, although there is some evidence of brief periods of glaciation during the cooler first half, and forests extended to

12099-630: Was followed by the Aptian-Albian Cold Snap (AACS) that began about 118 Ma. A short, relatively minor ice age may have occurred during this so-called "cold snap", as evidenced by glacial dropstones in the western parts of the Tethys Ocean and the expansion of calcareous nannofossils that dwelt in cold water into lower latitudes. The AACS is associated with an arid period in the Iberian Peninsula . Temperatures increased drastically after

12210-531: Was inexpensive wine from regions in the Midi that undercut Chablis. The vineyards were affected by oidium from 1886, and then phylloxera from 1887. Effective replacement of vinestocks to counter phylloxera took some 15 years. Many Chablis producers gave up winemaking, the acreage in the region steadily declining throughout much of the early 20th century. By the 1950s there were only 500 hectares (1,235 acres) of vines planted in Chablis. The 20th century did bring about

12321-490: Was not designated until January 5, 1944. All the vineyards in Chablis are covered by four appellations with different levels of classification , reflecting all-important differences in soil and slope in this northerly region. At the top of the classification are the seven Grand Cru vineyards, which are all located on a single hillside near the town of Chablis. Second in quality are the Premier Cru vineyards, which numbered 40 at

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