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Now showing items 1-20 of 325
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(2001)2-Methylretene has been synthesised, characterised and identified in sedimentary material from a range of locations, source types and ages. 2-Methylretene was observed only in samples of Permian to Tertiary age and can be ...
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(1997)Five of six samples representing the entire stratigraphic sequence (∼3700 m thick) of basaltic flows in the Noril'sk section in the northwestern part of Siberian flood basalt province, Russia yield 40Ar–39Ar plateau ages ...
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(2002)Based on an incomplete lower jaw, a new scaloposaurian, Malasaurus germanus gen. et sp. nov., is described. This is a multidentate scaloposaurid with five lower incisors and a long mandibular symphysis of extraordinary structure.
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(2001)The Biliutai pluton, as the host of a small gold deposit, containing dark-gray enclaves, intruded into the Lower Permian volcanic-sedimentary formations in east Inner Mongolia, China. The host rocks and enclaves formed ...
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(2006)An important result of the Mars Exploration Rover's (MER) mission has been the images of sedimentary structures and diagenetic features in the Burns Formation at Meridiani Planum. Bedding, cross-bedding, ripple marks, mud ...
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(2006)Mississippi Valley type galena deposits emplaced into Carboniferous limestones throughout the Mendip Hills during the late Permian or Triassic period were locally exposed to the action of seawater during the Jurassic period ...
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(1996)Establishing an accurate and precise age for Siberian flood-basalt volcanism is of great importance in evaluating causes for the unequaled mass extinction of flora and fauna at the Permian-Triassic boundary. We report a ...
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(2006)Taldycupes rosanovi sp. nov. is described from an isolated elytron from the locality of Ilimpeya, Krasnoyarsk Krai, Tunguska River basin, Limptekon Formation.
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(2006)A new dicynodont genus and species, Idelesaurus tataricus sp. nov. (Cryptodontidae), from the Semin Ovrag locality (Tatarstan, Tetyushinskii District; Upper Permian, Upper Tatarian Substage, Severodvinian Horizon) is ...
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(2004)The species composition of the genus Dielasma, which has until recently included the majority of Late Permian terebratulids, is revised. The internal structure of some terebratulid species is studied in a series of transverse ...
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(2003)In the Permian strata (Upper Tatarian Substage, Vyatkian Horizon, Scutosaurus karpinskii Tetrapod Zone, Chroniosuchus paradoxus Subzone) near the town of Gorokhovets (Vladimir Region), a locality of Late Permian vertebrates ...
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(2001)The insect Sylvaprisca gravis n.g.n.sp. (Grylloblattida, Lemmato-phoridae) is described from the Lower Permian of the locality Chekarda in the Middle Ural (Russia).
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(2004)Viatkogorgon ivachnenkoi Tatarinov is a small gorgonopian with well-developed gastralia and hypapophyses of the caudal vertebrae and broad and short feet with distal intertarsal contacts. This animal was apparently a ...
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(2006)The Avila batholith of central Spain is composed, predominantly, of crustal-melt peraluminous granites cut by small-scale mafic alkaline bodies. Dating of the Gredos sector mafic camptonitic lamprophyre dykes was undertaken ...
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(1995)age spectra of biotite from a mineralized vein in the ore-bearing, Noril'sk I intrusion and from picritic-like gabbrodolerite from the weakly mineralized, Lower Talnakh intrusion show that these bodies were emplaced at 249 ...
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(2006)A hypothesis of light sulfur injection to the ocean-atmosphere system at the end of the Permian was presented by Kaiho et al. [Kaiho, K., Kajiwara, Y.,Nakano, T., Miura, Y., Kawahata, H., Tazaki, K., Ueshima, M., Chen, ...
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(2006)Previous studies have suggested a variety of causes for the end-Permian extinction event including a bolide impact, flood basalt volcanism, methane clathrate dissociation, or some combination of catastrophic processes. One ...
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(2005)Helium concentration and isotopic composition were measured in a suite of samples across the Permian–Triassic boundary at Opal Creek, Canada, to determine whether high extraterrestrial helium concentrations are associated ...
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(2003)The Solonker suture records the termination of the central Asian Orogenic Belt (CAOB). However, tectonic development of the Solonker suture is poorly understood. We report new field data for the Ondor Sum melange in the ...
Now showing items 1-20 of 325