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Sudden Productivity Collapse Associated with the Triassic-Jurassic Boundary Mass Extinction
The end-Triassic mass extinction is one of the five most catastrophic in Phanerozoic Earth history. Here we report carbon isotope evidence of a pronounced productivity collapse at the boundary,Expand
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U-Th-Pb geochronology of the Coast Mountains batholith in north-coastal British Columbia: Constraints on age and tectonic evolution
Previously published and new U-Pb geochronologic analyses provide 313 zircon and 59 titanite ages that constrain the igneous and cooling history of the Coast Mountains batholith in north-coastalExpand
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Isotopic evidence bearing on Late Triassic extinction events, Queen Charlotte Islands, British Columbia, and implications for the duration and cause of the Triassic/Jurassic mass extinction
Stable isotope analyses of Late Triassic to earliest Jurassic strata from Kennecott Point in the Queen Charlotte Islands, British Columbia, Canada shows the presence of two distinct and differentExpand
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Archean zircons in Cretaceous strata of the western Canadian Cordillera
The magnitude of late Mesozoic terrane translation along the western North American continental margin is controversial. Paleomagnetic data suggest more than 3000 km of dextral displacement of theExpand
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A REVIEW OF VERTEBRATE TRACK-BEARING FORMATIONS FROM THE MESOZOIC AND EARLIEST CENOZOIC OF WESTERN CANADA WITH A DESCRIPTION OF A NEW THEROPOD ICHNOSPECIES AND REASSIGNMENT OF AN AVIAN ICHNOGENUS
s, p. 8. Gangloff, R.A., and May, K.C., 2004, An early Late Cretaceous dinosaur tracksite in central Yukon Territory, Canada: Ichnos, v. 11, p.299-309. Gangloff, R.A., Storer, J.E., and May, K.C.,Expand
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Paleogeographic and paleoclimatic setting of Lower Cretaceous basins of East Asia and western North America, with reference to the nonmarine strata
Abstract Lower Cretaceous strata are widespread in East Asia and along the western coast of North America. In both regions, Cretaceous basins contain significant stratigraphic accumulations and canExpand
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Late Cretaceous (Santonian-Campanian) stratigraphy of the northern Sacramento Valley, California
The Upper Cretaceous (Coniacian–lower Campanian) Chico Formation of the northeastern Sacramento Valley, California, includes three newly defined members at the type locality: (1) cobble conglomerateExpand
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Episodic photic zone euxinia in the northeastern Panthalassic Ocean during the end-Triassic extinction
Severe changes in ocean redox, nutrient cycling, and marine productivity accompanied most Phanerozoic mass extinctions. However, evidence for marine photic zone euxinia (PZE) as a globally importantExpand
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