Authors / CoAuthors
O'Connor, D.P.H.
Abstract
Dr Sangsters contribution on the ore deposits of the Cobar district (Sangster, 1979) is of interest in that it views from a different perspective a group of distinctive and economically important deposits whose origin is enigmatic. Despite the advances in ore genesis theory which have seen many of the former hydrothermal replacement deposits described in terms of volcanic processes operating at or near the ocean-ocean floor interface, workers familiar with Cobar geology have been circumspect in assigning to the Cobar deposits a similar mode of origin. The lead-zinc/copper zonation at the CSA and several of the idle mines which so impressed Dr Sangster had not gone un-noticed by local geologists (e.g. Robertson 1974, p. 180). That they have not taken the next, apparently simple step of considering this zonation in terms of the sedimentary-exhalative orebody model is for the good reason that the comparison does not survive detailed examination. In offering comment on Dr Sangsters paper it is appropriate to note firstly several areas where the bases for his interpretation in the CSA Mine area are wrong in fact.
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document
eCat Id
81027
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Keywords
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- GA PublicationJournal
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- NSW
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_External
Publication Date
1980-01-01T00:00:00
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geoscientificInformation
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BMR Journal of Australian Geology and Geophysics 5:1:70-72
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[-32.0, -31.0, 145.5, 147.0]
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