Re-Os ages for molybdenite from porphyry Cu-Mo and greisen Mo-W deposits of southern Siberia (Russia) preserve metallogenic record

被引：0
|
作者：
Berzina, AN [1 ]
Stein, HJ [1 ]
Zimmerman, A [1 ]
Sotnikov, VI [1 ]
机构：
[1] Inst Geol, Novosibirsk, Russia
来源：
MINERAL EXPLORATION AND SUSTAINABLE DEVELOPMENT, VOLS 1 AND 2 | 2003年
关键词：
Re-Os dating; molybdenite; Cu-Mo porphyry deposits; Mo-W greisen deposits; Aksug; Zhireken; Shakhtama; Sora; Kalguta; Siberia;
D O I：
暂无
中图分类号：
P57 [矿物学];
学科分类号：
070901 ;
摘要：
We report Re-Os age determinations for molybdenites from representative porphyry Cu-Mo and rare-metal Mo-W greisen deposits in southern Siberia, thereby allowing the timing of mineralization to be discussed. Re-Os ages of mineralization are compared with other available published age data (40Ar/39Ar, Rb-Sr, U-Pb). Intrusion-related mineralization in south Siberia was episodic and related to magmatic belts that spanned Paleozoic to Mesozoic time. Re-Os ages of molybdenum mineralization from Mesozoic deposits are similar to published 40Ar/39Ar ages for ore-bearing granitoids. The older Paleozoic deposits yield the largest discrepancy in Re-Os versus 40Ar/39Ar ages.
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页码：231 / 234
页数：4
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