Priabonian, late Eocene chronostratigraphy, depositional environment, and paleosol-trace fossil associations, Pipestone Springs, southwest Montana, USA

Priabonian, late Eocene chronostratigraphy, depositional environment, and paleosol-trace fossil associations, Pipestone Springs, southwest Montana, USA

Sanidine 40Ar/39Ar ages of lapilli tuffs and the mammalian fauna of Pipestone Springs strata provide a high-resolution chronostratigraphy for upper Eocene (Priabonian) rock units in southwestern Montana. Two felsic lapilli tuffs with weighted-mean 40Ar/39Ar single crystal sanidine ages of 37.50±0....

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Bibliographic Details
Main Authors: DEBRA L. HANNEMAN, DONALD LOFGREN, STEPHEN T. HASIOTIS, WILLIAM C. MCINTOSH
Format: Article
Language:English
Published: Institute of Paleobiology PAS 2022-03-01
Series:Acta Palaeontologica Polonica
Subjects:
trace fossils
coprinisphaera
eatonichnus
feoichnus
fictovichnus
rebuffoichnus
continental strata
paleosol
vertisol
alfisol
inceptisol
loessite
chadronian
priabonian
renova formation
montana
Online Access:https://www.app.pan.pl/archive/published/app67/app009012021.pdf

Internet

https://www.app.pan.pl/archive/published/app67/app009012021.pdf

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