Mobility of rare-earth elements and copper during shear-zone-related retrograde metamorphism

被引：0

作者：

de Jong, G ^{[1
]}

Rotherham, J ^{[1
]}

Phillips, GN ^{[1
]}

Williams, PJ ^{[1
]}

机构：

[1] Great Cent Mines NL, Melbourne, Vic, Australia

来源：

GEOLOGIE EN MIJNBOUW | 1998年 / 76卷 / 04期

关键词：

Australia; metadolerites; Mt Isa Inlier; REE mobility; sodic-calcic alteration;

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：

In Mid Proterozoic crystalline rocks of the Mount Isa Inlier, around Cloncurry, Australia, 2000 km(2) of alteration and brecciation are the product of high-temperature (> 450 degrees C) concentrated saline solution activity. During retrogression, this fluid was locally responsible for mobility of V, Y, Nb and light rare-earth elements (15 x enrichment). Copper and S were leached during alteration and this may have been a significant source of components in nearby Cu-Au deposits. Similar rare-earth-element behaviour has been observed in the hematite breccias which host Cu-sulfides at the giant Olympic Dam Cu-Au deposit.

引用

页码：311 / 319

页数：9

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