The terrestrial Permian-Triassic boundary event bed is a nonevent
Autor: | C. Kittinger Clark, Johann Neveling, Sophia S. Newbury, Robert A. Gastaldo |
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Rok vydání: | 2009 |
Předmět: | |
Zdroj: | Geology. 37:199-202 |
ISSN: | 1943-2682 0091-7613 |
DOI: | 10.1130/g25255a.1 |
Popis: | A unique isochronous interval in the Karoo Basin, South Africa, previously has been interpreted to postdate vertebrate extinction at the Permian-Triassic boundary in the Bethulie area, Lootsberg Pass, and elsewhere. It is demonstrated that the laminated beds, or laminites, in the Bethulie region are stratigraphically indistinct. The heterolithic interval exposed on the Heldenmoed farm is ~8 m below the Bethel farm section |
Databáze: | OpenAIRE |
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