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中国辽西地区与加拿大赖斯湖地区金矿类型及其地质条件的对比
CONTRASTS IN SETTING AND STYLE OF GOLD DEPOSITS INTWO ARCHEAN TERRA NES:RICE LAKE DISTRICT,CANADA AND WESTERN LIAONING DISTRICT,CHINA.
【作者】 林宝钦; 沈而述; 张立东; 商翎; K·H·波尔森; R·布罗米克尔; S·B·格林; K·A·贝克尔; L·W·戴蒙德; D·马歇尔;
【Author】 Lin Baoqin Shen Ershu Zhang Lidong (Shenyang Institute of Geology and Mineral Resources,China) Shang Ling (Ceological Institute,Bureau of Geology and Mineral Resources,Liaoning Province,China) K.H.Poulsen R.Brommecker S.B.Green K.A.Baker (Geological Servey of Canada) L.W.Diamond D.Marshall (Ottawa-Carleton Geoscience Centre.Canada)
【机构】 沈阳地质矿产研究所; 辽宁省地质矿产研究所; 加拿大地质调查局; 加拿大渥太华卡利顿地球科学中心;
【摘要】 文中对中国辽西地区与加拿大赖斯湖地区金矿类型及其地质条件做了对比。对比表明,虽然在这两个太古宙地体中的金矿有某些相似之处,但它们之间存在某些差别。这个差别可以归结以下两个方面:其一,这两个太古宙岩石分布区变质作用强度本来就有一定差别;其二,辽西地区叠加有中生代岩浆活动。最后讨论了金矿成因问题。
【Abstract】 The objective of this joint Sino-Canadian gold study is the comparison of the sett- ing and styles of mineralization in the Archean terranes of both countries.In Canada,gold deposits of Archean age,as exemplified by the Rice Lake District in southeastern Manitoba, are hosted by Archean granite-greenstone terranes of low metamorphic grade.In China, gold deposits of Mesozoic age,as exemplified by the Western Liaoning District,are typi- cally hosted by Archean gneisses of medium to high metamorphic grade.These funda- mental differences are further reflected in the composition,structure,alteration and nature of ore fluids in the two districts.
- 【会议录名称】 中国地质科学院沈阳地质矿产研究所文集(18)
- 【会议时间】1989
- 【分类号】P618.51