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Summary of results. Joint NTGS-GA geochronology project: Balbirini Dolostone, southern McArthur Basin, June 2019-September 2019

Details:

Title

Summary of results. Joint NTGS-GA geochronology project: Balbirini Dolostone, southern McArthur Basin, June 2019-September 2019,

Creator

Kositcin, N, Munson, T. J,

Issued by

Northern Territory Geological Survey,

Collection

E-Publications, E-Books, PublicationNT, NTGS Record,

Date

2020,

Location

Mallapunyah 6064, Bauhinia Downs SE5303, McArthur Basin,

Abstract

Two new U-Pb SHRIMP zircon geochronological results derived from two samples of the Balbirini Dolostone (southern McArthur Basin, Northern Territory) are presented herein. The two samples were collected in June 2019 from the type section of the Balbirini Dolostone in Mallapunyah, southern BAUHINIA DOWNS., The Balbirini Dolostone, part of the early Mesoproterozoic Nathan Group, is a thick unit of interbedded dolostone and dolomitic siliciclastic rocks that include evaporitic redbeds. A sample from the base of the Balbirini Dolostone (base 'evaporitic unit') yielded an interpreted maximum depositional age (MDA) of 1625 +/- 14 Ma. A sample from the medial Balbirini Dolostone (base 'stromatolitic unit') returned an interpreted MDA of 1607 +/-6 Ma.,

Notes

Made available via the Publications (Legal Deposit) Act 2004 (NT), Stratigraphy: Nathan Group; Balbirini Dolostone, Available from GEMIS - Geoscience Exploration and Mining Information System,

Language

English,

Subject

Geochronology, Zircon, McArthur Basin,

Publisher name

Northern Territory Government,

Place of publication

Darwin,

Series

NTGS Record,

Volume

2020-002,

File type

application/zip,

ISBN

9780724573622 (PDF),

ISSN

1443-1149,

Use

Attribution International 4.0 (CC BY 4.0),

Copyright owner

Northern Territory Government,

License

https://creativecommons.org/licenses/by/4.0/,

Related links

https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/89780 [GEMIS],

Parent handle

https://hdl.handle.net/10070/794598,

Citation address

https://hdl.handle.net/10070/794598

Related items

https://hdl.handle.net/10070/794599,