The mount black lead‐zinc deposit, a probable Mississippi valley‐type sulphide occurrence at cooleman plains, southern New South Wales
作者:
P. M. Ashley,
R. A. Creelman,
期刊:
Journal of the Geological Society of Australia
(Taylor Available online 1975)
卷期:
Volume 22,
issue 4
页码: 423-433
ISSN:0016-7614
年代: 1975
DOI:10.1080/00167617508728908
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The Mount Black lead‐zinc deposit at Cooleman Plains, southern New South Wales, occurs in the uppermost part of the moderately folded, weakly metamorphosed, Upper Silurian Cooleman Limestone. A joint‐controlled collapse‐breccia zone interpreted as a palaeokarst structure has been partly replaced by quartz, sphalerite, galena, and a little chalcopyrite, pyrite, marcasite, tetrahedrite, arseno‐pyrite, and mackinawite. These minerals show evidence of having encrusted and replaced limestone fragments in the breccia. Oxidic Zn, Pb, Cu, and Fe minerals have formed by the near‐surface oxidation of the sulphides.
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