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19-1136: Geologic formation in Bavaria, Germany Hassberge Formation Stratigraphic range : Carnian ( Tuvalian ) ~ 235–222  Ma PreꞒ Ꞓ O S D C P T J K Pg N Type Formation Unit of Keuper Sub-units Blasensandstein & Coburger Sandstein members Underlies Mainhardt Formation Overlies Steigerwald Formation Lithology Primary Sandstone Other Shale Location Coordinates 50°00′N 10°42′E  /  50.0°N 10.7°E  / 50.0; 10.7 Approximate paleocoordinates 27°24′N 13°06′E  /  27.4°N 13.1°E  / 27.4; 13.1 Region Bavaria Country [REDACTED]   Germany Extent Southern Germanic Basin Type section Named for Hassberge [REDACTED] [REDACTED] Hassberge Formation (Germany) The Hassberge Formation

38-775: A proxy for the age at which a surface, such as an alluvial fan, was created. Burial dating uses the differential radioactive decay of 2 cosmogenic elements as a proxy for the age at which a sediment was screened by burial from further cosmic rays exposure. Luminescence dating techniques observe 'light' emitted from materials such as quartz, diamond, feldspar, and calcite. Many types of luminescence techniques are utilized in geology, including optically stimulated luminescence (OSL), cathodoluminescence (CL), and thermoluminescence (TL). Thermoluminescence and optically stimulated luminescence are used in archaeology to date 'fired' objects such as pottery or cooking stones and can be used to observe sand migration. Incremental dating techniques allow

57-483: A reference for newly obtained poles for the rocks with unknown age. For paleomagnetic dating, it is suggested to use the APWP in order to date a pole obtained from rocks or sediments of unknown age by linking the paleopole to the nearest point on the APWP. Two methods of paleomagnetic dating have been suggested: (1) the angular method and (2) the rotation method. The first method is used for paleomagnetic dating of rocks inside of

76-1115: Is a geologic formation in Bavaria , Germany . It preserves fossils dating back to the Carnian stage of the Triassic period . Fossil content [ edit ] See also: Blasensandstein § Fossil content Insects [ edit ] Coleoptera Carabilarva triassica Dinoharpalus coptoclavoides Larvula triassica Protonectes germanicus Stargelytron larissae Zygadenia sp. Coptoclavidae indet. Invertebrates [ edit ] Euestheria kozuri Gregoriusella striatula Laxitextella dorsorecta L. freybergi Ichnofossils [ edit ] Apatopus lineatus See also [ edit ] List of fossiliferous stratigraphic units in Germany Benkersandstein , contemporaneous ichnofossiliferous formation of Bavaria Chañares Formation , fossiliferous formation of

95-653: Is also correct to say that fossils of the genus Tyrannosaurus have been found in the Upper Cretaceous Series. In the same way, it is entirely possible to go and visit an Upper Cretaceous Series deposit – such as the Hell Creek deposit where the Tyrannosaurus fossils were found – but it is naturally impossible to visit the Late Cretaceous Epoch as that is a period of time. Apatopus Apatopus

114-491: Is also often used as a dating tool in archaeology, since the dates of some eruptions are well-established. Geochronology, from largest to smallest: It is important not to confuse geochronologic and chronostratigraphic units. Geochronological units are periods of time, thus it is correct to say that Tyrannosaurus rex lived during the Late Cretaceous Epoch. Chronostratigraphic units are geological material, so it

133-472: Is an ichnogenus , or a name based on footprints , that may have been from a phytosaur . The trackmaker lived in the early Triassic . It was named by Baird in 1957. Of special relevance in regard to its phytosaurian identity is the fact that the tracks are positioned in a way that indicates that the limbs were held directly under the body, a gait known in true archosaurs like crocodiles and dinosaurs but previously thought absent in phytosaurs. This raises

152-485: Is different from Wikidata Pages using gadget WikiMiniAtlas Geochronology Geochronology is different in application from biostratigraphy, which is the science of assigning sedimentary rocks to a known geological period via describing, cataloging and comparing fossil floral and faunal assemblages. Biostratigraphy does not directly provide an absolute age determination of a rock, but merely places it within an interval of time at which that fossil assemblage

171-410: Is known to have coexisted. Both disciplines work together hand in hand, however, to the point where they share the same system of naming strata (rock layers) and the time spans utilized to classify sublayers within a stratum. The science of geochronology is the prime tool used in the discipline of chronostratigraphy , which attempts to derive absolute age dates for all fossil assemblages and determine

190-528: The Ar/ Ar dating method can be extended into the time of early human life and into recorded history. Some of the commonly used techniques are: A series of related techniques for determining the age at which a geomorphic surface was created ( exposure dating ), or at which formerly surficial materials were buried (burial dating). Exposure dating uses the concentration of exotic nuclides (e.g. Be, Al, Cl) produced by cosmic rays interacting with Earth materials as

209-1031: The Ischigualasto-Villa Unión Basin , Argentina Candelária Formation , contemporaneous fossiliferous formation of the Paraná Basin, Brazil Molteno Formation , contemporaneous fossiliferous formation of Lesotho and South Africa Pebbly Arkose Formation , contemporaneous fossiliferous formation of Botswana, Zambia and Zimbabwe Denmark Hill Insect Bed , contemporaneous fossiliferous unit of Queensland, Australia Madygen Formation , contemporaneous Lagerstätte of Kyrgyzstan References [ edit ] ^ [ Hassberge Formation] at Fossilworks .org ^ Prokin et al., 2013 ^ Ponomarenko et al., 2015 ^ Fedorenko, 2014 ^ Geyer & Kelber, 2018 ^ Klein & Lucas, 2013 Bibliography [ edit ] Geyer, G.; Kelber, K.-P. (2018), "Spinicaudata ("Conchostraca," Crustacea) from

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228-643: The Keuper (Triassic) of Franconia, Germany", Paleontological Journal , 48 (6): 605–609, Bibcode : 2014PalJ...48..605F , doi : 10.1134/S0031030114060069 Klein, H.; Lucas, S. G. (2013), The Late Triassic tetrapod ichnotaxon Apatopus lineatus (Bock 1952) and its distribution. In L. H. Tanner, J. A. Spielmann, S. G. Lucas (eds.), The Triassic System: New Mexico Museum of Natural History and Science , vol. 61 Prokin, A. A.; Makarov, K. V.; Ponomarenko, A. G.; Bashkuev, A. S. (2013), "New beetle larvae (Coleoptera: Coptoclavidae, Caraboidea, Polyphaga) from

247-724: The Middle Keuper (Upper Triassic) of the southern Germanic Basin, with a review of Carnian–Norian taxa and suggested biozones", Paläontologische Zeitschrift , 92 (1): 1–34, Bibcode : 2018PalZ...92....1G , doi : 10.1007/s12542-017-0363-7 Ponomarenko, A. G.; Prokin, A. A.; Bashkuev, A. S. (2015), "Coptoclavid beetles (Insecta: Coleoptera: Adephaga) from the Triassic of Lower Franconia, Germany", Paleontological Journal , 49 (12): 1334–1345, Bibcode : 2015PalJ...49.1334P , doi : 10.1134/S0031030115120096 Fedorenko, D. N (2014), "Wings of Coptoclavidae (Coleoptera, Adephaga) from

266-1139: The Upper Triassic of Germany", Russian Entomological Journal , 22 : 259–274 Weiss, W (1934), "Eine Fährtenschicht im mittelfränkischen Blasensandstein - A trackway layer in the middle Franconian Blasensandstein", Jahresberichte und Mitteilungen des Oberrheinischen Geologischen Vereins , Neue Folge, 23 : 5–11, doi : 10.1127/jmogv/23/1934/5 Kuhn, O (1932), "Labyrinthodonten und Parasuchier aus dem mittleren Keuper von Ebrach in Oberfranken", Neues Jahrbuch für Mineralogie, Geologie und Paläontologie , 69 : 94–144 Retrieved from " https://en.wikipedia.org/w/index.php?title=Hassberge_Formation&oldid=1235956857 " Categories : Triassic System of Europe Triassic Germany Carnian Stage Sandstone formations Shale formations Lacustrine deposits Ichnofossiliferous formations Paleontology in Germany Hidden categories: Articles with short description Short description

285-436: The construction of year-by-year annual chronologies, which can be fixed ( i.e. linked to the present day and thus calendar or sidereal time ) or floating. A sequence of paleomagnetic poles (usually called virtual geomagnetic poles), which are already well defined in age, constitutes an apparent polar wander path (APWP). Such a path is constructed for a large continental block. APWPs for different continents can be used as

304-416: The exception of the radiocarbon method , most of these techniques are actually based on measuring an increase in the abundance of a radiogenic isotope, which is the decay-product of the radioactive parent isotope. Two or more radiometric methods can be used in concert to achieve more robust results. Most radiometric methods are suitable for geological time only, but some such as the radiocarbon method and

323-539: The geologic history of the Earth and extraterrestrial bodies . By measuring the amount of radioactive decay of a radioactive isotope with a known half-life , geologists can establish the absolute age of the parent material. A number of radioactive isotopes are used for this purpose, and depending on the rate of decay, are used for dating different geological periods. More slowly decaying isotopes are useful for longer periods of time, but less accurate in absolute years. With

342-426: The same age and of such distinctive composition and appearance that, despite their presence in different geographic sites, there is certainty about their age-equivalence. Fossil faunal and floral assemblages , both marine and terrestrial, make for distinctive marker horizons. Tephrochronology is a method for geochemical correlation of unknown volcanic ash (tephra) to geochemically fingerprinted, dated tephra . Tephra

361-700: The same continental block. The second method is used for the folded areas where tectonic rotations are possible. Magnetostratigraphy determines age from the pattern of magnetic polarity zones in a series of bedded sedimentary and/or volcanic rocks by comparison to the magnetic polarity timescale. The polarity timescale has been previously determined by dating of seafloor magnetic anomalies, radiometrically dating volcanic rocks within magnetostratigraphic sections, and astronomically dating magnetostratigraphic sections. Global trends in isotope compositions, particularly carbon-13 and strontium isotopes, can be used to correlate strata. Marker horizons are stratigraphic units of

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