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韧性剪切带中的香炉碗子金矿床成因和黄铁矿找矿矿物学研究
THE GENESIS OF THE XIANGLUWANZI GOLD DEPOSIT AND STUDY OF PROSPECTNG——MINERALOGY ON PYRITES IN THE DUCTILE SHEAR ZONES
【摘要】 香炉碗子金矿床产于韧性剪切带内,具有多期成矿的特点。矿床成因属浅成低温热液—蚀变岩型金矿床。黄铁矿形成于两个成矿阶段。早期黄铁矿含金量较少,其晶体形态主要为{hko}、{hko}+{100}。晚期黄铁矿以富含金为特征,主要为它形晶,呈细脉浸染状产出。黄铁矿的热电性特征可作为金矿的找矿标志。利用成矿阶段形成的黄铁矿所求出的产矿系数可以圈定矿体。其产矿系数<4010×10-2者为工业矿体。
【Abstract】 The Xiangluwanzi gold deposit occurs in the ductile shear zone. The metallogenic characteristies are of poly-stages; the genesis belong to epithermal-altered rock type. The pyrites were formed in two stages. The early pyrites contains a small quantity gold and the crystal morphologys are generally {hko} and {hko} + {100~2}. The later pyrites with rich-gold shows allotrimorphic and occurs as veinlet-disseminated type. The pyroelectricity characteristics of pyrite can be used as the indicators for prospecting of gold deposit. The orebodies can be delineated by the ore-producing coefficient obtained from the pyrite formed in the metallogenic stages. A coefficient(>40%) is referred to industrial orebodies.
- 【文献出处】 吉林地质 ,Jilin Geology , 编辑部邮箱 ,1992年04期
- 【被引频次】6
- 【下载频次】70