| 程敏清,王存昌.胶东三山岛、大开头、马家窑等金矿床石英—黄铁矿的矿物标型特征及找矿评价意义[J].地质找矿论丛,1988,(3):44-53 |
| 胶东三山岛、大开头、马家窑等金矿床石英—黄铁矿的矿物标型特征及找矿评价意义 |
| THE TYPOMOPHIC MINERAL FEATURES OF THE QUARTZ PYRITE AND THIR SIGNIFICENCE IN PROSPECTING AND EVALUATION AT SAN SHAN DAO, DAKAI TOU AND MA JIAO YAO OF JIAODONG REGION |
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| DOI：10.6053/j.issn.1001-1412.1988.3. 005 |
| 中文关键词: 石英和黄铁矿 标型特征 找矿评价 |
| 英文关键词: |
| 基金项目: |
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| 摘要点击次数: 1112 |
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| 中文摘要: |
| 本文通过对胶东部分金矿床中的主成分矿物—石英和黄铁矿标型特征的研究,为不同矿带金矿的成因和未知矿床的找矿评价提供了一些标定的依据,对胶东地区广泛出露蚀变岩和石英脉含矿性的评价有一定的实际意义。 |
| 英文摘要: |
| The following discovery was made through study of typemorpic minerals of quartz and pyrite. 1. Quartz within altered-fracfured-rock type Au-deposits is characterized by K+Na+A1>1%influx of xxxNC×10-10 light unit in the intigration range of 50～350℃ and a-single-acute peak thermoluminescence curve; quartz within metamorphic hgdrothermal gold deposits by K+Na+A1<0.5% influx of 0. xNC ×10-10 light unit and a-gentle-multipeaked thermoluminescence curve in which low temperature peaks become promiuaut but meso-temperature peaks are reduced with the ore bodies exterding fo depths and pinching out; quertz withiu the complex deposits of alferred-fractured-rock type and quartzvein-type gold ore by K+Na+A1 value from 0.5%-1%, influx of xNC×10-10 light wnit a-basically-single-peaked-thermoluminescence curve with sub-poeaks which goes gentle with depths. 2. light density-DH20 and DCO20 of quartz formed in the 2th ore-forming stage is proportional to gold grade. Enclussion-tempera fure meassurements of quartz show a reduced tendency with the developing of pyrite-beresite alfered rock. 3. crystal form of pyrite changes vertically in the pattern as followed: In the upper part of ore dodies octahedron o {111} Pyrite occur vertically in turn as o {111}+a {100} and o {111}+e {210} combinate form. In middlke part peutagoual dodecahedron pyrite is dominated by e {210} and a {100}+o{111} combinate form, In the lower part it is dominates by a {100}+e {210} combinate form and a {100} is more promiuant in a-e combiuate form to depths. |
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