New potassium-argon basalt date in relation to the Pliocene Bluff Downs Local Fauna, northern Australia

Mackness, BS, Whitehead, PW, and McNamara, GC (2000) New potassium-argon basalt date in relation to the Pliocene Bluff Downs Local Fauna, northern Australia. Australian Journal of Earth Sciences, 47 (4). pp. 807-811.

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Abstract

A new radiometric date of 3.6 Ma for the basalt overlying fossiliferous units of the Allingham Formation, provides a minimum age for the Bluff Downs Local Fauna. Ground studies and interpretation of aerial photography has clarified the volcanic history of the area and a new basalt flow has been identified and named. Although the age of the capping basalt permits a younger age for the Bluff Downs Local Fauna than originally described, the stratigraphy,combined with the interpreted stage of evolution of the fauna, still supports an Early Pliocene age for the site.

Item ID: 434
Item Type: Article (UNSPECIFIED)
Keywords: Bluff Downs local fauna, Biocorrelation, Pliocene, Potassium-argon dating
Additional Information:

Copyright 2000 Taylor & Francis. : This journal is available online - use hypertext links above.

ISSN: 1440-0952
Date Deposited: 22 Sep 2006
FoR Codes: 04 EARTH SCIENCES > 0402 Geochemistry > 040299 Geochemistry not elsewhere classified @ 100%
04 EARTH SCIENCES > 0403 Geology > 040314 Volcanology @ 0%
04 EARTH SCIENCES > 0403 Geology > 040303 Geochronology @ 0%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970104 Expanding Knowledge in the Earth Sciences @ 100%
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