Structural and thermochronological data from the Sulu terrane of eastern China document the exhumation of high-pressure and ultrahigh-pressure (UHP) metamorphic rocks to upper-crustal depths by ca. 206 Ma. 40Ar/39Ar ages from K-bearing phases record recrystallization and cooling through amphiboliteand upper greenschist– facies conditions during top-to-the-NW noncoaxial shear and suggest cooling...

Paleotemperature indicators and apatite fission track analysis of Australian continental margin cover sequeRces accreted to the active Banda arc-continent collision indicate little to no heating during rapid late Neogene uplift and exhumation. Thermal maturation patterns of vitrinite reflectance, conodont alteration and' illite crystallinity show that peak paleotemperatures (PPT) increase with ...

introduction in the east and northeast of sanandaj in the qorveh-bijar-takab axis, there are series of basaltic composition volcanoes with quaternary age. the study area is part of the sanandaj-sirjan zone and is located between 47°52' and 47°57' e longitudes and 35°26 and '35°30' n latitudes. due to the location of the volcanic cone on pliocene clastic sediments and quaternary travertine, the ...

Tong, Jinnan, and Douglas H. Erwin. Triassic Gastropods of the Southern Qinling Mountains, China. Smithsonian Contributions to Paleobiology, number 92,47 pages, 11 figures, 6 plates, 5 tables, 2001. Forty-eight species in 27 genera of gastropods, including 14 new species and one new genus, are described from earlyto middle-Triassic (Scythianto Ladinian-aged) rocks from the southern Qinling Moun...

Compared with other Mesozoic tetrapod groups, chigutisaurid fossils from Australia are rare, only three named taxa described the continent. From Queensland, Keratobrachyops australis is known Triassic, and Siderops kehli Jurassic. Koolasuchus cleelandi, Cretaceous of Victoria, represents youngest-known temnospondyl globally. Here we describe first New South Wales, Early–Middle Triassic Terrigal...

Mantle-derived magmatism provides important insights for understanding the mechanism of lithospheric thinning. Here we report results an integrated geochronological and geochemical study Late Triassic mafic dykes in Eastern Hebei, northern North China Craton. In situ zircon U-Pb dating shows that were emplaced between 238 223 Ma; coeval Gaojiadian Mataizi intruded Precambrian basement at 238–23...