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The Oxidized Zone of the Broken Hill Lode, N.S.W

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posted on 2023-05-22, 16:19 authored by Van Moort, JC, Swensson, CG

A systematic description is given of the remaining outcrops of the Broken Hill lode together with geochemical data. The oxidized lode is characterized by a coronadite-rich gossan in the upper part followed by a complex heterogeneous cerussitic mineralization at depth. The cerussitic zone is in direct contact with the primary sulphide.

Geochemically, the gossans are characterized by an extreme enrichment in manganese and lead. Significant features of the oxide gossan at the surface are a Pb/Fe ratio of about 1 or more and a Pb/Mn ratio of 1 – 2 or greater, even when free of lead carbonate.

The high Pb/Mn ratio in the gossan is caused by the presence of a plumboan variety of corona-dite containing 35%-58% Pb.

History

Publication title

Ore Genesis: The State of the Art

Editors

GC Amstutz, G Frenzel, C Kluth, G Moh, A Wauschkuhn, RA Zimmermann, A El Goresy

Pagination

251-268

ISBN

978-3-642-68346-6

Department/School

School of Natural Sciences

Publisher

Springer

Place of publication

Berlin, Germany

Extent

74

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the earth sciences

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