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Metallogenic episodes of the Tasman fold belt system, eastern Australia

Caroline Perkins, John L. Walshe and Gregg Morrison
Metallogenic episodes of the Tasman fold belt system, eastern Australia (in A special issue on the metallogeny of the Tasman fold belt system of eastern Australia, J. L. Walshe (editor), K. G. McQueen (editor) and S. F. Cox (editor))
Economic Geology and the Bulletin of the Society of Economic Geologists (October 1995) 90 (6): 1443-1466

Abstract

Precise dating of alteration minerals and host rocks to Au and base metal deposits in the Tasman fold belt system, eastern Australia, has established a number of distinct metallogenic epochs which correspond to episodes of magmatism or to deformation events. Base and precious metal mineralization was emplaced in the Mount Read Volcanics, Tasmania, at about 500 Ma, and other hydrothermal or deformational events may have occurred in the Hellyer deposit between approximately 480 and 440 Ma. Copper and Au mineralization was emplaced in the Lachlan fold belt, New South Wales, at about 440 Ma, and appears to be related to the end stages of Ordovician magmatism that spans a period from approximately 480 through to 440 Ma. Gold deposits (+ or - base metals), which formed in New South Wales and Tasmania at about 420 to 380 Ma, are essentially coeval with deformation and/or are broadly related to Siluro-Devonian magmatism that largely occurred from about 420 to 390 Ma. Gold mineralization in the Anakie inlier, northeast Drummond basin, North Queensland, was essentially coeval with the emplacement of the host Drummond sequence at about 350 Ma.


ISSN: 0361-0128
EISSN: 1554-0774
Coden: ECGLAL
Serial Title: Economic Geology and the Bulletin of the Society of Economic Geologists
Serial Volume: 90
Serial Issue: 6
Title: Metallogenic episodes of the Tasman fold belt system, eastern Australia
Title: A special issue on the metallogeny of the Tasman fold belt system of eastern Australia
Author(s): Perkins, CarolineWalshe, John L.Morrison, Gregg
Author(s): Walshe, J. L.editor
Author(s): McQueen, K. G.editor
Author(s): Cox, S. F.editor
Affiliation: Australian National University, Department of Geology, Canberra, Australia
Affiliation: Australian National University, Department of Geology, Canberra, Australia
Pages: 1443-1466
Published: 199510
Text Language: English
Publisher: Economic Geology Publishing Company, Lancaster, PA, United States
References: 71
Accession Number: 1996-014894
Categories: Economic geology, geology of ore deposits
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Includes appendix
Illustration Description: illus. incl. 3 tables, geol. sketch maps
S23°00'00" - S20°40'00", E146°00'00" - E147°45'00"
S41°34'29" - S41°34'29", E145°43'20" - E145°43'20"
S42°00'00" - S30°00'00", E143°00'00" - E150°15'00"
S37°30'00" - S28°15'00", E141°00'00" - E153°30'00"
Secondary Affiliation: University of Canberra, AUS, AustraliaUniversity of Newcastle, AUS, AustraliaKlondyke Exploration, AUS, Australia
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 199606
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