| 浅谈冀东北地区的大地构造演化规律与金矿成矿规律 |
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| 引用本文： | 刘锡文.浅谈冀东北地区的大地构造演化规律与金矿成矿规律[J].大地构造与成矿学,1992,16(4):355-365. |
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| 作者姓名： | 刘锡文 |
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| 摘 要： | 本文根据新近资料分析冀东北地区的大地构造演化规律对金矿成矿规律的控制作用.由于该区的地壳经过前地槽、地槽、地台和地洼四大不同发展阶段,因而在不同大地构造发展阶段中形成不同的金矿类型:前地槽阶段形成含金矿源层;地槽发展阶段,由于多期混合岩化、多期变质分异和侧分泌作用使矿源层中的金矿质富集溶移而在扩容构造中充填和交代形成变质热液型金矿床,地洼发展阶段,由于古地台的构造岩浆活化解体,在巨厚的的地槽构造层的基底上形成大量的岩浆热液型金矿床和叠加(再造)富化型金矿床.
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| 关 键 词： | 矿源层 变质热液 岩浆热液 金矿床 冀东北 |
(?)ISCUSSION ON THE TECTONIC EVOLUTION AND GOLD MINERALIZATION OF NORTHEAST HEBEI PROVINCE |
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| Abstract: | The author analyses the control of tectonic evolution on the gold mineralization of Northeast Hebei Province according to recomt data. The tectonic evolution of the region has undrergone four different stages: pregeosyncline, geosyncline, platform and diwa, consequently forming different types of gold deposits. In the pregeosyncline stage, the gold-bearing source bed was formed. In the geosyncline stage, polyphasic migmatization, polyphasic metamorphic differentiation and lateral secretion have made the gold in the source bed rich, fill the cavities and experience metasomasis in dilatant structures, forming metamorphic-hydrothermal type gold deposits. In the diwa stage, tectono-magmatic activization of the platform has brought about magmatic-hydrothermal and superposed enrichment types of gold deposits on the base of the huge pregeosyncline tectonic layer. |
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| Keywords: | source bed metamorphic hydrothermal magmatic hydrothermal gold deposit Northeast Hebei Province |
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