Dataset

Morphology and geochemistry of gold in a laterite profile, Beasley Creek, Laverton, Western Australia

AuScope
CRC LEME (Point of Contact) Freyssinet, Ph. and Butt, C.R.M. (Author) Terry Rankine (Point of Contact)
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://portal.auscope.org/gmap.html&rft.title=Morphology and geochemistry of gold in a laterite profile, Beasley Creek, Laverton, Western Australia&rft.identifier=0b30242b-cf42-431e-9c3e-2c9d4b6ad9f2&rft.publisher=AuScope&rft.description=The morphology and geochemistry of gold grains was studied in panned concentrates from several depths in the weathering profile of gold mineralization at Beasley Creek, near Laverton. At 70-80 m depth, the mineralization is only partly weathered and both primary and secondary gold grains are present. The former are characterised by high Ag contents (maximum 48%), whereas the secondary gold is of high fineness. Above 60 m, only secondary grains were found, but with several morphological types, including flat polygonal forms, euhedral prismatic crystals and pseudohexagonal crystals. Most of the grains are etched and corroded. Above 20 m, a further generation of secondary gold appears, as irregular rounded grains that are only weakly corroded. No trace elements were detected in the primary gold, but Fe and As are present sporadically in the secondary grains, probably as micro-inclusions of Fe oxides.&rft.creator=Freyssinet, Ph. and Butt, C.R.M.&rft.date=1970&rft.coverage=northlimit=-28.56666667; southlimit=-28.56666667; westlimit=122.3; eastLimit=122.3; projection=WGS84&rft_rights=There are no access constraints associated with this collection.&rft_subject=Geochemistry&rft_subject=Mineralogy&rft_subject=Gold - Western Australia&rft_subject=Report&rft_subject=Western Australia&rft_subject=Laverton&rft_subject=Beasley Creek&rft.type=dataset&rft.language=English Go to Data Provider

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The morphology and geochemistry of gold grains was studied in panned concentrates from several depths in the weathering profile of gold mineralization at Beasley Creek, near Laverton. At 70-80 m depth, the mineralization is only partly weathered and both primary and secondary gold grains are present. The former are characterised by high Ag contents (maximum 48%), whereas the secondary gold is of high fineness. Above 60 m, only secondary grains were found, but with several morphological types, including flat polygonal forms, euhedral prismatic crystals and pseudohexagonal crystals. Most of the grains are etched and corroded. Above 20 m, a further generation of secondary gold appears, as irregular rounded grains that are only weakly corroded. No trace elements were detected in the primary gold, but Fe and As are present sporadically in the secondary grains, probably as micro-inclusions of Fe oxides.

122.3,-28.56666667

122.3,-28.56666667

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  • Local : 0b30242b-cf42-431e-9c3e-2c9d4b6ad9f2