Diverse Mafic Facies in the Olympic Dam Cu-Au-U Deposit, South Australia.

被引：0

作者：

Chambefort, Isabelle ^{[1
]}

McPhie, Jocelyn ^{[1
]}

Kamenetsky, Vadim ^{[1
]}

Ehrig, Kathy

Green, Nick

机构：

[1] Univ Tasmania, ARC Ctr Excellence Ore Deposits, Sch Earth Sci, Hobart, Tas 7001, Australia

来源：

SMART SCIENCE FOR EXPLORATION AND MINING, VOL 1 AND 2 | 2010年

关键词：

Olympic Dam; mafic; coherent facies; breccia; dyke; clast; chromite; CONSTRAINTS;

D O I：

暂无

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

New petrographic, textural and mineralogical data on mafic samples from the Olympic Dam Au-Cu-U deposit show the diversity of mafic facies. Four main types of mafic fades has been underestimated: 1-coherent facies, which represent a basaltic lava, 2-dolerite 3- mafic dykes with formerly glassy quenched margins, and coherent to brecciated texture, and 4- clasts of mafic rocks in the hematitic breccia and the volcaniclastic succession in the Olympic Dam breccia complex. These new observations confirm the deposit with the presence of basaltic lava prior to brecciation and that mafic fades were a component of the host succession, before, during, and after formation of the Olympic Dam deposit.

引用

页码：614 / 616

页数：3

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