Gold bearing veining linked to transcrustal fault zones in the Transantarctic Mountains (northern Victoria Land, Antarctica)
Gold mineralization is associated with the paleo-Pacific margin of Gondwana and is related to processes of subduction/accretion and magmatism. Northern Victoria Land (Antarctica) was part of this margin during the Paleozoic, however no occurrence of gold has been reported up to now in the Transantar...
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DigitalCommons@University of Nebraska - Lincoln
2007
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ftunivnebraskali:oai:digitalcommons.unl.edu:andrillaffiliates-1019 2023-11-12T04:05:29+01:00 Gold bearing veining linked to transcrustal fault zones in the Transantarctic Mountains (northern Victoria Land, Antarctica) Crispini, L. Capponi, G. Federico, L. Talarico, F. 2007-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/andrillaffiliates/20 https://digitalcommons.unl.edu/context/andrillaffiliates/article/1019/viewcontent/Talarico_AAKCW_2007_Gold_bearing_veining.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/andrillaffiliates/20 https://digitalcommons.unl.edu/context/andrillaffiliates/article/1019/viewcontent/Talarico_AAKCW_2007_Gold_bearing_veining.pdf Related Publications from ANDRILL Affiliates Environmental Indicators and Impact Assessment text 2007 ftunivnebraskali 2023-10-30T10:48:58Z Gold mineralization is associated with the paleo-Pacific margin of Gondwana and is related to processes of subduction/accretion and magmatism. Northern Victoria Land (Antarctica) was part of this margin during the Paleozoic, however no occurrence of gold has been reported up to now in the Transantarctic Mountains. Here we describe for the first time gold-bearing quartz veins in northern Victoria Land. The veins are hosted primarily by metabasalts and occur in a brittle-ductile high strain zone with curved geometry and reverse kinematic. Veins are extensional and shear veins; they often have ribbon/banded texture typical of crack and seal processes. Preliminary petrographic investigations point to strong hydrothermal alteration with growth of chlorite + quartz and then of sericite + carbonates + sulphides approaching the vein. Available data are discussed with the aim to understand the origin of the gold deposit and to frame it in the regional tectonic evolution. Text Antarc* Antarctica Victoria Land University of Nebraska-Lincoln: DigitalCommons@UNL Victoria Land Transantarctic Mountains Pacific |
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University of Nebraska-Lincoln: DigitalCommons@UNL |
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topic |
Environmental Indicators and Impact Assessment |
spellingShingle |
Environmental Indicators and Impact Assessment Crispini, L. Capponi, G. Federico, L. Talarico, F. Gold bearing veining linked to transcrustal fault zones in the Transantarctic Mountains (northern Victoria Land, Antarctica) |
topic_facet |
Environmental Indicators and Impact Assessment |
description |
Gold mineralization is associated with the paleo-Pacific margin of Gondwana and is related to processes of subduction/accretion and magmatism. Northern Victoria Land (Antarctica) was part of this margin during the Paleozoic, however no occurrence of gold has been reported up to now in the Transantarctic Mountains. Here we describe for the first time gold-bearing quartz veins in northern Victoria Land. The veins are hosted primarily by metabasalts and occur in a brittle-ductile high strain zone with curved geometry and reverse kinematic. Veins are extensional and shear veins; they often have ribbon/banded texture typical of crack and seal processes. Preliminary petrographic investigations point to strong hydrothermal alteration with growth of chlorite + quartz and then of sericite + carbonates + sulphides approaching the vein. Available data are discussed with the aim to understand the origin of the gold deposit and to frame it in the regional tectonic evolution. |
format |
Text |
author |
Crispini, L. Capponi, G. Federico, L. Talarico, F. |
author_facet |
Crispini, L. Capponi, G. Federico, L. Talarico, F. |
author_sort |
Crispini, L. |
title |
Gold bearing veining linked to transcrustal fault zones in the Transantarctic Mountains (northern Victoria Land, Antarctica) |
title_short |
Gold bearing veining linked to transcrustal fault zones in the Transantarctic Mountains (northern Victoria Land, Antarctica) |
title_full |
Gold bearing veining linked to transcrustal fault zones in the Transantarctic Mountains (northern Victoria Land, Antarctica) |
title_fullStr |
Gold bearing veining linked to transcrustal fault zones in the Transantarctic Mountains (northern Victoria Land, Antarctica) |
title_full_unstemmed |
Gold bearing veining linked to transcrustal fault zones in the Transantarctic Mountains (northern Victoria Land, Antarctica) |
title_sort |
gold bearing veining linked to transcrustal fault zones in the transantarctic mountains (northern victoria land, antarctica) |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2007 |
url |
https://digitalcommons.unl.edu/andrillaffiliates/20 https://digitalcommons.unl.edu/context/andrillaffiliates/article/1019/viewcontent/Talarico_AAKCW_2007_Gold_bearing_veining.pdf |
geographic |
Victoria Land Transantarctic Mountains Pacific |
geographic_facet |
Victoria Land Transantarctic Mountains Pacific |
genre |
Antarc* Antarctica Victoria Land |
genre_facet |
Antarc* Antarctica Victoria Land |
op_source |
Related Publications from ANDRILL Affiliates |
op_relation |
https://digitalcommons.unl.edu/andrillaffiliates/20 https://digitalcommons.unl.edu/context/andrillaffiliates/article/1019/viewcontent/Talarico_AAKCW_2007_Gold_bearing_veining.pdf |
_version_ |
1782342008973557760 |