The terrestrial Permian-Triassic boundary event bed is a nonevent

Autor: C. Kittinger Clark, Johann Neveling, Sophia S. Newbury, Robert A. Gastaldo
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