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86-549: Baiyin is part loess plateau, part desert. Elevation ranges from 1,275 to 3,321 meters (4,183 to 10,896 feet) above sea-level. The prefecture-level city has either a cool arid climate ( Köppen BWk ) or a cool semi-arid climate ( BSk ) is very arid with only 110–352 mm (4.3–13.9 in) of annual precipitation. Annual evaporation is 2,101 mm (82.7 in) resulting in a net loss of approximately 1,800 mm (71 in). The Yellow River flows from south to north for 214 km (133 mi) through Baiyin. The area

172-627: A U.S. Army by Native Americans. The British demanded the establishment of a Native American barrier state at the Treaty of Ghent which ended the War of 1812 , but American negotiators rejected the idea because Britain had lost control of the region in the Battle of Lake Erie and the Battle of the Thames in 1813, where Tecumseh was killed by U.S. forces. The British then abandoned their Native American allies south of

258-426: A high cation exchange capacity (the ability of the soil to retain nutrients) and porosity (the air-filled space in the soil). The fertility of loess is not due to organic matter content, which tends to be rather low, unlike tropical soils which derive their fertility almost wholly from organic matter. Even well managed loess farmland can experience dramatic erosion of well over 2.5 kg/m per year. In China,

344-825: A high-tech park is being built, which is home to a contact lens factory. Pingchuan District and Huining County are the largest coal production bases in Gansu province. The Yinguang Group, a subsidiary of Norinco , operates a major factory making chemicals for defense and civilian use, the factory was a key project of the first five-year plan . Baiyin is directly served by the Baotou–Lanzhou railway , Honghui railway , China National Highway 109 , China National Highway 341 and G6 Beijing–Lhasa Expressway . Loess A loess ( US : / ˈ l ɛ s , ˈ l ʌ s , ˈ l oʊ . ə s / , UK : / ˈ l oʊ . ə s , ˈ l ɜː s / ; from German : Löss [lœs] )

430-455: A house, clearing the ground, and planting crops. A number of means facilitated the legal settlement of the territories in the Midwest: land speculation , federal public land auctions , bounty land grants in lieu of pay to military veterans, and, later, preemption rights for squatters. The "squatters" became "pioneers" and were increasingly able to purchase the lands on which they had settled for

516-563: A hundred meters in areas of Northwestern China and tens of meters in parts of the Midwestern United States. Loesses generally occur as blanket deposits that cover hundreds of square kilometers. The deposits are often tens of meters thick. Loesses often have steep or vertical faces. Because the grains are angular, loesses will often stand in banks for many years without slumping . This type of soil has "vertical cleavage", and thus, it can be easily excavated to form cave dwellings, which

602-488: A persistent grassland biome . When the valuable A-horizon topsoil is eroded or degraded, the underlying loess soil is infertile, and requires the addition of fertilizer in order to support agriculture . The loess along the Mississippi River near Vicksburg, Mississippi , consists of three layers. The Peoria Loess , Sicily Island Loess , and Crowley's Ridge Loess accumulated at different periods of time during

688-534: A supernatural being who lived in the sky and was believed to have created the world and the Huron people. At death, Hurons thought the soul left the body to live in a village in the sky. Chippewas were a deeply religious people who believed in the Great Spirit. They worshiped the Great Spirit through all their seasonal activities, and viewed religion as a private matter: Each person's relation with his personal guardian spirit

774-538: A written form of language. In the 16th century, the natives of the area used projectiles and tools of stone, bone, and wood to hunt and farm. They made canoes for fishing. Most of them lived in oval or conical wigwams that could be easily moved away. Various tribes had different ways of living. The Ojibwas were primarily hunters and fishing was also important in the Ojibwas economy. Other tribes such as Sac, Fox, and Miami, both hunted and farmed. They were oriented toward

860-883: Is Heartland . Among the Native Americans , Paleo-Americans cultures were the earliest in North America, with a presence in the Great Plains and Great Lakes areas from about 12,000 BCE to around 8,000 BCE. Following the Paleo-American period is the Archaic period (8,000 BCE to 1,000 BCE), the Woodland Tradition (1,000 BCE to 100 CE), and the Mississippian Period (900 to 1500 CE). Archeological evidence indicates that Mississippian culture traits probably began in

946-590: Is 20,100 km (7,800 sq mi), 3,345 km (1,292 sq mi) of that urban. Baiyin has 2 urban districts, 3 counties, 64 townships, 18 towns, and 7 sub-districts with a total population of 1,512,110 as of the 2020 Chinese census , of which 538,514 lived in the built-up (or metro) area made of the 2 urban districts of Baiyin and Pingchuan . The Baiyin Nonferrous operates copper , zinc and selenium mines around Baiyin, although these mines are getting exhausted of ore. Financed by development funds,

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1032-560: Is a clastic , predominantly silt -sized sediment that is formed by the accumulation of wind-blown dust . Ten percent of Earth's land area is covered by loesses or similar deposits . A loess is a periglacial or aeolian (windborne) sediment, defined as an accumulation of 20% or less of clay with a balance of roughly equal parts sand and silt (with a typical grain size from 20 to 50 micrometers), often loosely cemented by calcium carbonate . Usually, they are homogeneous and highly porous and have vertical capillaries that permit

1118-613: Is a popular method of making human habitations in some parts of China. However, loesses can readily erode. In several areas of the world, loess ridges have formed that had been aligned with the prevailing winds during the last glacial maximum . These are called " paha ridges" in America and "greda ridges" in Europe. The formation of these loess dunes has been explained as a combination of wind and tundra conditions. The word loess , with connotations of origin by wind-deposited accumulation,

1204-461: Is also found in Australia and Africa. Loess tends to develop into very rich soils. Under appropriate climatic conditions, it is some of the most agriculturally productive terrain in the world. Soils underlain by loess tend to be excessively drained. The fine grains weather rapidly due to their large surface area, making soils derived from loess rich. The fertility of loess soils is due largely to

1290-484: Is also known as brickearth . Non-glacial loess can originate from deserts , dune fields , playa lakes , and volcanic ash . Some types of nonglacial loess are: The thick Chinese loess deposits are non-glacial loess having been blown in from deserts in northern China. The loess covering the Great Plains of Nebraska , Kansas , and Colorado is considered to be non-glacial desert loess. Non-glacial desert loess

1376-564: Is mainly deposited in plateau-like situations in the Danube basins , likely derived from the Danube River system. In south-western Europe, relocated loess derivatives are mostly restricted to the Ebro Valley and central Spain. The Loess Hills of Iowa owe their fertility to the prairie topsoils built by 10,000 years of post-glacial accumulation of organic-rich humus as a consequence of

1462-506: Is the area between the historical foreground of European invasion and occupation and the background of Indian defeat and retreat. White specifically designates "the lands bordering the rivers flowing into the northern Great Lakes and the lands south of the lakes to the Ohio" as the location of the middle ground. This includes the modern Midwestern states of Ohio, Indiana, Illinois, Wisconsin, and Michigan as well as parts of Canada. The middle ground

1548-741: The Algonquian language family. Some tribes—such as the Stockbridge-Munsee and the Brothertown —are also Algonkian-speaking tribes who relocated from the eastern seaboard to the Great Lakes region in the 19th century. The Oneida belong to the Iroquois language group and the Ho-Chunk of Wisconsin are one of the few Great Lakes tribes to speak a Siouan language. American Indians in this area did not develop

1634-522: The Arikara , Hidatsa , Iowa , Kaw (or Kansa) , Kitsai , Mandan , Missouria , Nez Perce , Omaha , Osage , Otoe , Pawnee , Ponca , Quapaw , Santee , Wichita , and Yankton . The nomadic tribes of the Great Plains survived on hunting ; some of their major hunts centered on deer and buffalo. Some tribes are described as part of the "Buffalo Culture" (sometimes called, for the American bison ). Although

1720-481: The Blackfoot , Arapaho , Assiniboine , Cheyenne , Comanche , Crow , Gros Ventre , Kiowa , Lakota , Lipan , Plains Apache (or Kiowa Apache), Plains Cree , Plains Ojibwe , Sarsi , Shoshone , Stoney , and Tonkawa . The second group of Plains Indians (sometimes referred to as Prairie Indians) were the semi-sedentary tribes who, in addition to hunting buffalo, lived in villages and raised crops. These included

1806-575: The Great Lakes region . The West North Central Division includes Iowa, Kansas, Minnesota, Missouri, North Dakota, Nebraska, and South Dakota, several of which are located, at least partly, within the Great Plains region. Chicago is the most populous city in the American Midwest and the third-most populous in the United States. Chicago and its suburbs , colloquially known as Chicagoland , form

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1892-622: The Haitian Revolution and together with the fact that France could not effectively defend Louisiana from a possible British attack, he sold the territory to the United States in the Louisiana Purchase of 1803. Meanwhile, the British maintained forts and trading posts in U.S. territory, refusing to give them up until 1796 by the Jay Treaty . American settlement began either via routes over

1978-538: The Kansas City metro area , the Columbus metro area , and Greater Cleveland . The region's economy is a mix of heavy industry and agriculture, with extensive areas forming part of the United States' Corn Belt . Finance and services such as medicine and education are becoming increasingly important. Its central location makes it a transportation crossroads for river boats, railroads, autos, trucks, and airplanes. Politically,

2064-564: The Louisiana Purchase , and establish trade and U.S. sovereignty over the native peoples along the Missouri River . The Lewis and Clark Expedition established relations with more than two dozen indigenous nations west of the Missouri River. The Expedition returned east to St. Louis in the spring of 1806. The Midwest has been a key swing district in national elections, with highly contested elections in closely divided states often deciding

2150-549: The Ningxia Hui Autonomous Region , and parts of others. Loess deposits of varying thickness (decimeter to several tens of meters) are widely distributed over the European continent. The northern European loess belt stretches from southern England and northern France to Germany, Poland and the southern Ukraine and deposits are characterized by strong influences of periglacial conditions. South-eastern European loess

2236-683: The Pleistocene . Ancient soils, called paleosols , have developed on the top of the Sicily Island Loess and Crowley's Ridge Loess. The lowermost loess, the Crowley's Ridge Loess, accumulated during the late Illinoian Stage . The middle loess, Sicily Island Loess, accumulated during the early Wisconsin Stage . The uppermost loess, the Peoria Loess in which the modern soil has developed, accumulated during

2322-721: The Saint Lawrence River by Jacques Cartier in 1534 and ending with their cessation of the majority of their holdings in North America to the Kingdom of Great Britain in the Treaty of Paris (1763) . In 1673 the Governor of New France sent Jacques Marquette , a Catholic priest and missionary, and Louis Jolliet , a fur trader , to map the way to the Northwest Passage to the Pacific. They traveled through Michigan's upper peninsula to

2408-752: The St. Louis, Missouri area and spread northwest along the Mississippi and Illinois rivers and entered the state along the Kankakee River system. It also spread northward into Indiana along the Wabash , Tippecanoe , and White Rivers. Mississippian peoples in the Midwest were mostly farmers who followed the rich, flat floodplains of Midwestern rivers. They brought with them a well-developed agricultural complex based on three major crops— maize , beans , and squash . Maize, or corn,

2494-457: The Treaty of Paris , Spain was given Louisiana ; the area west of the Mississippi. St. Louis and Ste. Genevieve in Missouri were the main towns, but there was little new settlement. France regained Louisiana from Spain in exchange for Tuscany by the terms of the Treaty of San Ildefonso in 1800. Napoleon had lost interest in re-establishing a French colonial empire in North America following

2580-664: The loess deposits which give the Yellow River its color have been farmed and have produced phenomenal yields for over one thousand years. Winds pick up loess particles contributing to the Asian Dust pollution problem. The largest deposit of loess in the United States which is the Loess Hills along the border of Iowa and Nebraska , has survived intensive farming and poor farming practices . For almost 150 years, this loess deposit

2666-710: The Appalachian Mountains or through the waterways of the Great Lakes. Fort Pitt (now Pittsburgh ) at the source of the Ohio River became the main base for settlers moving into the Midwest. Marietta, Ohio in 1787 became the first settlement in Ohio, but not until the defeat of Native American tribes at the Battle of Fallen Timbers in 1794 was large-scale settlement possible. Large numbers also came north from Kentucky into southern Ohio, Indiana and Illinois. The region's fertile soil produced corn and vegetables; most farmers were self-sufficient. They cut trees and claimed

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2752-551: The Austrian and Hungarian loess stratigraphy, respectively. Since the 1980s, thermoluminescence (TL), optically stimulated luminescence (OSL), and infrared stimulated luminescence (IRSL) dating have been available, providing the possibility for dating the time of loess (dust) depositions, i.e., the time elapsed since the last exposure of the mineral grains to daylight. During the past decade, luminescence dating has significantly improved by new methodological improvements, especially

2838-615: The Endeavors of Government, or Fear of Indians has kept them properly within Bounds." The British had a long-standing goal of establishing a Native American buffer state in the American Midwest to resist American westward expansion. With victory in the American Revolution the new government considered evicting the squatters from areas that were now federally owned public lands. In 1785, soldiers under General Josiah Harmar were sent into

2924-577: The French and British, conflicts and treaties with the United States both during the Revolutionary War and after , and its ultimate clearing/erasure throughout the nineteenth century. European settlement of the area began in the 17th century following French exploration of the region and became known as New France , including the Illinois Country . The French period began with the exploration of

3010-534: The French and the British into competition with each other to their own benefit. The Indian demand for certain kinds of cloth in particular fueled this competition. This, however, changed following the Seven Years' War with Britain's victory over France and the cession of New France to Great Britain. The British attempted to establish a more assertive relationship with the Indians of the pays d'en haut , eliminating

3096-490: The Huangtu Plateau, is a plateau that covers an area of some 640,000 km around the upper and middle reaches of China's Yellow River . The Yellow River was so named because the loess forming its banks gave a yellowish tint to the water. The soil of this region has been called the "most highly erodible soil on earth". The Loess Plateau and its dusty soil cover almost all of Shanxi , Shaanxi , and Gansu provinces;

3182-469: The Ohio country to destroy the crops and burn down the homes of any squatters they found living there. But overall the federal policy was to move Indians to western lands (such as the Indian Territory in modern Oklahoma) and allow a very large numbers of farmers to replace a small number of hunters. Congress repeatedly debated how to legalize settlements. On the one hand, Whigs such as Henry Clay wanted

3268-527: The Plains Indians hunted other animals, such as elk or antelope , bison was their primary game food source. Bison flesh, hide, and bones from bison hunting provided the chief source of raw materials for items that Plains Indians made, including food, cups, decorations, crafting tools, knives, and clothing. The tribes followed the bison's seasonal grazing and migration. The Plains Indians lived in teepees because they were easily disassembled and allowed

3354-556: The Rhine valley near Heidelberg . Charles Lyell (1834) brought the term into widespread usage, observing similarities between "loess" and its derivatives along the loess bluffs in the Rhine and in Mississippi . At the time, it was thought that the yellowish brown silt-rich sediment was of fluvial origin and had been deposited by large rivers. The aeolian origin of the loesses was recognized later (Virlet D'Aoust 1857), particularly due to

3440-718: The alliance it created. In the meshed French and Algonquian system of trade, the Algonquian familial metaphor of a father and his children shaped the political relationship between the French and the Natives in this region. The French, regarded as the metaphoric father, were expected to provide for the needs of the Algonquians and, in return, the Algonquians, the metaphoric children, would be obligated to assist and obey them. Traders coming into Indian villages facilitated this system of symbolic exchange to establish or maintain alliances and friendships. Marriage also became an important aspect of

3526-496: The autumn and winter, when the melting of the ice sheets and ice caps ceased, the flow of meltwater down these rivers either ceased or was greatly reduced. As a consequence, large parts of the formerly submerged and unvegetated floodplains of these braided rivers dried out and were exposed to the wind. Because the floodplains consist of sediment containing a high content of glacially ground flour-like silt and clay , they were highly susceptible to winnowing of their silts and clays by

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3612-782: The broad Interior Plain between the states occupying the Appalachian Mountain range and the states occupying the Rocky Mountain range . Major rivers in the region include, from east to west, the Ohio River , the Upper Mississippi River , and the Missouri River . The 2020 United States census put the population of the Midwest at 68,995,685. The Midwest is divided by the U.S. Census Bureau into two divisions. The East North Central Division includes Illinois, Indiana, Michigan, Ohio, and Wisconsin, all of which are also part of

3698-525: The conflict, the British government was forced to compromise and loosely re-created a trade system that was an echo of the French one. While French control ended in 1763 after their defeat in the Seven Years' War, most of the several hundred French settlers in small villages along the Mississippi River and its tributaries remained, and were not disturbed by the new British administration. By the terms of

3784-564: The convincing observations of loesses in China by Ferdinand von Richthofen (1878). A tremendous number of papers have been published since then, focusing on the formation of loesses and on loess/ paleosol (older soil buried under deposits) sequences as the archives of climate and environment change. These water conservation works have been carried out extensively in China, and the research of loesses in China has been ongoing since 1954. [33] Much effort

3870-459: The development of single aliquot regenerative (SAR) protocols (Murray & Wintle 2000) resulting in reliable ages (or age estimates) with an accuracy of up to 5 and 10% for the last glacial record. More recently, luminescence dating has also become a robust dating technique for penultimate and antepenultimate glacial loess (e.g. Thiel et al. 2011, Schmidt et al. 2011) allowing for a reliable correlation of loess/palaeosol sequences for at least

3956-501: The female line, while the others favored the patrilineal method. All tribes were governed under chiefdoms or complex chiefdoms. For example, Hurons were divided into matrilineal clans, each represented by a chief in the town council, where they met with a town chief on civic matters. But Chippewa people's social and political life was simpler than that of settled tribes. The religious beliefs varied among tribes. Hurons believed in Yoscaha ,

4042-411: The formation of loess: a dust source, adequate wind energy to transport the dust, a suitable accumulation area, and a sufficient amount of time. Periglacial (glacial) loess is derived from the floodplains of glacial braided rivers that carried large volumes of glacial meltwater and sediments from the annual melting of continental ice sheets and mountain ice caps during the spring and summer. During

4128-567: The global climate change of the Little Ice Age . Their culture effectively ended before 1492. The major tribes of the Great Lakes region included the Huron , Ottawa , Ojibwe , Potawatomi , Ho-Chunk , Menominee , Sauk , Meskwaki , Neutrals , and the Miami . Most numerous were the Huron and Ho-Chunk. Fighting and battle were often launched between tribes, with the losers forced to flee. Most are of

4214-566: The government to get maximum revenue and also wanted stable middle-class law-abiding settlements of the sort that supported towns (and bankers). Jacksonian Democrats such as Thomas Hart Benton wanted the support of poor farmers, who reproduced rapidly, had little cash, and were eager to acquire cheap land in the West. Democrats did not want a big government, and keeping revenues low helped that cause. Democrats avoided words like "squatter" and regarded "actual settlers" as those who gained title to land, settled on it, and then improved upon it by building

4300-461: The growing influence of women in the fur trade also came the increasing demand of cloth which very quickly grew to be the most desired trade good. English traders entered the Ohio country as a serious competitor to the French in the fur trade around the 1690s. English (and later British) traders almost consistently offered the Indians better goods and better rates than the French, with the Indians being able to play that to their advantage, thrusting

4386-411: The lakes. The Native Americans ended being the main losers in the War of 1812 . Apart from the short Black Hawk War of 1832, the days of Native American warfare east of the Mississippi River had ended. In 1803, President Thomas Jefferson commissioned the Lewis and Clark Expedition that took place between May 1804 and September 1806. Launching from Camp Dubois in Illinois, the goal was to explore

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4472-582: The land, then sold it to newcomers and then moved further west to repeat the process. Settlers without legal claims, called "squatters", had been moving into the Midwest for years before 1776. They pushed further and further down the Ohio River during the 1760s and 1770s and sometimes engaged in conflict with the Native Americans. British officials were outraged. These squatters were characterized by British General Thomas Gage as "too Numerous, too Lawless, and Licentious ever to be restrained", and regarded them as "almost out of Reach of Law and government; Neither

4558-550: The largest metropolitan area with 10 million people, making it the fourth-largest metropolitan area in North America , after Greater Mexico City , the New York metropolitan area , and Greater Los Angeles . Other large Midwestern cities include Columbus , Indianapolis , Detroit , Milwaukee , Kansas City , Omaha , Minneapolis , Wichita , Cleveland , Cincinnati , St. Paul , St. Louis , and Des Moines . Large midwestern metropolitan areas include Metro Detroit , Minneapolis–St. Paul , Greater St. Louis , Greater Cincinnati ,

4644-485: The last two interglacial/glacial cycles throughout Europe and the Northern Hemisphere (Frechen 2011). Furthermore, the numerical dating provides the basis for quantitative loess research applying more sophisticated methods to determine and understand high-resolution proxy data including the palaeodust content of the atmosphere, variations of the atmospheric circulation patterns and wind systems, palaeoprecipitation, and palaeotemperature. Besides luminescence dating methods,

4730-441: The late Wisconsin Stage. Animal remains include terrestrial gastropods and mastodons . Extensive areas of loess occur in New Zealand including the Canterbury Plains and on the Banks Peninsula . The basis of loess stratigraphy was introduced by John Hardcastle in 1890. Much of Argentina is covered by loess. Two areas of loess are usually distinguished in Argentina: the neotropical loess north of latitude 30° S and

4816-399: The location of Native American settlements near the headwaters of the Wabash River , but on November 4 they were routed in battle by a tribal confederation led by Miami Chief Little Turtle and Shawnee chief Blue Jacket . More than 600 soldiers and scores of women and children were killed in the battle, which has since borne the name " St. Clair's Defeat ". It remains the greatest defeat of

4902-437: The middle ground was introduced in Richard White's seminal work: The Middle Ground: Indians, Empires, and Republics in the Great Lakes Region, 1650–1815 originally published in 1991. White defines the middle ground like so: The middle ground is the place in between cultures, peoples, and in between empires and the non state world of villages. It is a place where many of the North American subjects and allies of empires lived. It

4988-446: The minimum price thanks to various preemption acts and laws passed throughout the 1810s-1840s. In Washington, Jacksonian Democrats favored squatter rights while banker-oriented Whigs were opposed; the Democrats prevailed. In 1791, General Arthur St. Clair became commander of the United States Army and led a punitive expedition with two Regular Army regiments and some militia. Near modern-day Fort Recovery , his force advanced to

5074-503: The most powerful and dominant tribes were the Dakota or Sioux , who occupied large amounts of territory in the Great Plains of the Midwest. The area of the Great Sioux Nation spread throughout the South and Midwest, up into the areas of Minnesota and stretching out west into the Rocky Mountains. At the same time, they occupied the heart of prime buffalo range, and also an excellent region for furs they could sell to French and American traders for goods such as guns. The Sioux (Dakota) became

5160-446: The most powerful of the Plains tribes and the greatest threat to American expansion. The Sioux comprise three major divisions based on Siouan dialect and subculture: Today, the Sioux maintain many separate tribal governments scattered across several reservations, communities, and reserves in the Dakotas, Nebraska, Minnesota, and Montana in the United States, as well as Manitoba and southern Saskatchewan in Canada. The theory of

5246-475: The national result. From 1860 to 1920, both parties tried to find their presidential and vice presidential candidates from the region. One of the two major political parties in the United States, the Republican Party , originated in the Midwest in the 1850s; Ripon, Wisconsin , had the first local meeting while Jackson, Michigan , had the first statewide meeting of the new party. Its membership included many Yankees out of New England and New York who had settled

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5332-410: The native peoples who lived along the route were generally friendly, and that the natural resources of the lands in between were extraordinary. New France officials led by LaSalle followed up and erected a 4,000-mile (6,400 km) network of fur trading posts. The fur trade was an integral part of early European and Indian relations. It was the foundation upon which their interactions were built and

5418-401: The neotropical loess. The pampean loess is sandy or made of silty sand. This article incorporates CC-BY-3.0 text from the reference "Loess in Europe: Guest Editorial". Midwestern United States The Midwestern United States (also referred to as the Midwest or the American Midwest ) is one of the four census regions defined by the United States Census Bureau . It occupies

5504-434: The nomadic life of following game. When Spanish horses were obtained, the Plains tribes rapidly integrated them into their daily lives. By the early 18th century, many tribes had fully adopted a horse culture . Before their adoption of guns, the Plains Indians hunted with spears , bows , and bows and arrows , and various forms of clubs . The use of horses by the Plains Indians made hunting (and warfare) much easier. Among

5590-566: The northern central part of the United States . It was officially named the North Central Region by the U.S. Census Bureau until 1984. It is between the Northeastern United States and the Western United States , with Canada to the north and the Southern United States to the south. The U.S. Census Bureau's definition consists of 12 states in the north central United States: Illinois , Indiana , Iowa , Kansas , Michigan , Minnesota , Missouri , Nebraska , North Dakota , Ohio , South Dakota , and Wisconsin . The region generally lies on

5676-414: The northern tip of Lake Michigan. On canoes, they crossed the massive lake and landed at present-day Green Bay, Wisconsin . They entered the Mississippi River on 17 June 1673. Marquette and Jolliet were the first to map the northern portion of the Mississippi River. They confirmed that it was easy to travel from the St. Lawrence River through the Great Lakes all the way to the Gulf of Mexico by water, that

5762-453: The open prairies where they engaged in communal hunts for buffalo (bison) . In the northern forests, the Ottawas and Potawatomis separated into small family groups for hunting. The Winnebagos and Menominees used both hunting methods interchangeably and built up widespread trade networks extending as far west as the Rockies, north to the Great Lakes, south to the Gulf of Mexico , and east to the Atlantic Ocean. The Hurons reckoned descent through

5848-402: The pampean loess. The neotropical loess is made of silt or silty clay. Relative to the pampean loess the neotropical loess is poor in quartz and calcium carbonate . The source region for this loess is thought by some scientists to be areas of fluvio-glacial deposits the Andean foothills formed by the Patagonian Ice Sheet . Other researchers stress the importance of volcanic material in

5934-522: The plains and rolling hills of the Great Plains of North America. Their colorful equestrian culture and famous conflicts with settlers and the US Army have made the Plains Indians archetypical in literature and art for American Indians everywhere. Plains Indians are usually divided into two broad classifications, with some degree of overlap. The first group were fully nomadic, following the vast herds of buffalo . Some tribes occasionally engaged in agriculture, growing tobacco and corn primarily. These included

6020-501: The practise of gift giving which they now saw as unnecessary. This, in combination with an underwhelming trade relationship with a surplus of whiskey, increase in prices generally, and a shortage of other goods led to unrest among the Indians that was exacerbated by the decision to significantly reduce the amount of rum being traded, a product that British merchants had been including in the trade for years. This would eventually culminate in Pontiac's War , which broke out in 1763. Following

6106-448: The processing of the pelts necessary to the fur trade. Women were integral to the fur trade and their contributions were lauded, so much so that the absence of the involvement of an Indian Woman was once cited as the cause for a trader's failure. When the French fur trade re-opened in 1716 upon the discovery that their overstock of pelts had been ruined, legal French traders continued to marry Indian women and remain in their villages. With

6192-559: The region is composed of swing states , and therefore is heavily contested and often decisive in elections. The term West was applied to the region in British America and in the early years of the United States, when the colonial territories had not extended far from the Atlantic coast and the Pacific seaboard was generally unknown. By the early 19th century, anything west of Appalachia

6278-444: The sediment to fracture and form vertical bluffs . Loesses are homogeneous ; porous ; friable ; pale yellow or buff ; slightly coherent ; typically, non- stratified ; and often calcareous . Loess grains are angular , with little polishing or rounding, and composed of quartz , feldspar , mica , or other mineral crystals. Loesses have been described as rich, dust-like soil. Loess deposits may become very thick: at more than

6364-481: The trade in both the Ohio River valley and the French pays d'en haut with the temporary closing of the French fur trade from 1690 to 1716 and beyond. French fur traders were forced to abandon most posts and those remaining in the region became illegal traders who potentially sought these marriages to secure their safety. Another benefit for French traders marrying Indian women was that the Indian women were in charge of

6450-517: The upper Midwest. The party opposed the expansion of slavery and stressed the Protestant ideals of thrift, a hard work ethic, self-reliance, democratic decision making, and religious tolerance. In the early 1890s, the wheat-growing regions were strongholds of the short-lived Populist movement in the Plains states. Starting in the 1890s, the middle class urban Progressive movement became influential in

6536-506: The use of radiocarbon dating in loess has increased during the past decades. Advances in methods of analyses, instrumentation, and refinements to the radiocarbon calibration curve have made it possible to obtain reliable ages from loess deposits for the last 40–45 ka. However, the use of this method relies on finding suitable in situ organic material in deposits such as charcoal, seeds, earthworm granules, or snail shells. According to Pye (1995), four fundamental requirements are necessary for

6622-632: The wind. Once entrained by the wind, particles were then deposited downwind. The loess deposits found along both sides of the Mississippi River alluvial valley are a classic example of periglacial loess. During the Quaternary , loess and loess-like sediments were formed in periglacial environments on mid-continental shield areas in Europe and Siberia as well as on the margins of high mountain ranges like in Tajikistan and on semi-arid margins of some lowland deserts as in China. In England, periglacial loess

6708-424: Was a system that would evolve over time. Goods often traded included guns, clothing, blankets, strouds, cloth, tobacco, silver, and alcohol. The French and Indian exchange of goods was called an exchange of gifts rather than a trade. These gifts held greater meaning to the relationship between the two than a simple economic exchange because the trade itself was inseparable from the social relations it fostered and

6794-451: Was bounded by the Great Lakes and the Ohio and Mississippi Rivers. Some entities in the Midwest have "Northwest" in their names for historical reasons, such as Northwestern University in Illinois. One of the earliest late-19th-century uses of Midwest was in reference to Kansas and Nebraska to indicate that they were the civilized areas of the west. Another term applied to the same region

6880-639: Was considered American frontier . Over time the American frontier moved to west of the Mississippi River . During the colonial period, the upper-Mississippi watershed including the valleys of the Missouri River and the Illinois River , which were settled in the 17th and 18th century and called Illinois Country . In 1787 the Northwest Ordinance was enacted, creating the Northwest Territory , which

6966-526: Was farmed with mouldboard ploughs and tilled in the fall, both intensely erosive practices. At times it suffered erosion rates of over 10 kilograms per square meter per year. Today this loess deposit is worked as low till or no till in all areas and is aggressively terraced . An area of multiple loess deposits spans from southern Tajikistan up to Almaty , Kazakhstan . The Loess Plateau ( simplified Chinese : 黄土高原 ; traditional Chinese : 黃土高原 ; pinyin : Huángtǔ Gāoyuán ), also known as

7052-430: Was formed on the foundations of mutual accommodation and common meanings established between the French and the Indians that then transformed and degraded as both were steadily lost as the French ceded their influence in the region in the aftermath of their defeat in the Seven Years' War and the Louisiana Purchase . Major aspects of the middle ground include blended culture, the fur trade , Native alliances with both

7138-665: Was introduced into English from the German Löss , which can be traced back to Swiss German and is cognate with the English word loose and the German word los . It was first applied to the Rhine River valley loesses around 1821. The term "Löß" was first described in Central Europe by Karl Cäsar von Leonhard (1823–1824), who had reported yellowish brown, silty deposits along

7224-514: Was part of his thinking every day of life. Ottawa and Potawatomi people had very similar religious beliefs to those of the Chippewas. In the Ohio River Valley, the dominant food supply was not hunting but agriculture. There were orchards and fields of crops that were maintained by indigenous women. Corn was their most important crop. The Plains Indians are the indigenous peoples who live on

7310-407: Was put into setting up regional and local loess stratigraphies and their correlations (Kukla 1970, 1975, 1977). However, even the chronostratigraphical position of the last interglacial soil correlating with marine isotope substage 5e was a matter of debate, due to the lack of robust and reliable numerical dating, as summarized, for example, by Zöller et al. (1994) and Frechen et al. (1997) for

7396-413: Was the primary crop of Mississippian farmers. They gathered a wide variety of seeds, nuts, and berries, and fished and hunted for fowl to supplement their diets. With such an intensive form of agriculture , this culture supported large populations. The Mississippi period was characterized by a mound-building culture. The Mississippians suffered a tremendous population decline about 1400, coinciding with

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