Absolute age of volcanogenic formations of the central Siberian Platform

Naumov, V. A.; Mukhina, A M

doi:10.1080/00206817709471095

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Direct Evidence Of Terminal K/t Events1

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1985

2021

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“…We note that the Siberian traps, which cover an area and have a volume comparable to those of the Deccan traps (65), are Permian to Triassic in age. At that time, the next major faunal extinction event preceding the K/T event occurred.…”

Section: Direct Evidence Of Terminal K/t Eventsmentioning

confidence: 79%

Terminal Cretaceous Environmental Events

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Drake

1985

Science

231

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The geologic record of terminal Cretaceous environmental events indicates that iridium and other associated elements were not deposited instantaneously but during a time interval spanning some 10,000 to 100,000 years. The available geologic evidence favors a mantle rather than meteoritic origin for these elements. These results are in accord with the scenario of a series of intense eruptive volcanic events occurring during a relatively short geologic time interval and not with the scenario of a single large asteroid impact event.

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Section: Direct Evidence Of Terminal K/t Eventsmentioning

confidence: 79%