Feldspar evolution in the Roxby Downs Granite, host to Fe-oxide Cu-Au-(U) mineralisation at Olympic Dam, South Australia
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- 作者：Alkis Kontonikas-Charosa ; alkiviadis.kontonikas-charos@adelaide.edu.au" class="auth_mail" title="E-mail the corresponding author ; Cristiana L. Ciobanub ; Nigel J. Cookb ; Kathy Ehrigc ; Sasha Krnetaa ; Vadim S. Kamenetskyd
- 关键词：Feldspars ; Albitisation ; Iron-oxide copper-gold mineralisation ; Olympic dam
- 刊名：Ore Geology Reviews
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：80
- 期：Complete
- 页码：838-859
- 全文大小：5356 K
文摘
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Feldspar textures record the transition from magmatic to hydrothermal conditions.
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Significant albite and hydrothermal K-feldspar have been recognised at Olympic Dam.
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Geothermobarometric estimates support magma mixing (at > 700–560 °C and ~ 2.2 kbar).
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