| 构造应力对焦家金矿床的成矿控制 |
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| 引用本文： | 舒斌,孟庆芬.构造应力对焦家金矿床的成矿控制[J].现代地质,1999,13(4):425-431. |
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| 作者姓名： | 舒斌 孟庆芬 |
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| 作者单位： | 中国地质科学院地质力学研究所!北京100081(舒斌，郭涛，吕古贤)，中国地质大学地球科学与资源学院!北京100083(孟庆芬，邓军) |
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| 摘 要： | 通过对典型金矿成矿动力学研究 ,探讨了成矿元素活化、迁移、富集的规律 ,认为 :( 1 )早期的韧性剪切活动使断裂带处于高应力、高能量区 ,原有的物质平衡被破坏 ,成矿物质重新分配 ,Au、 Ag等成矿元素并没有在此发生富集 ,反而发生贫化 ;( 2 )晚期的韧脆性—脆性活动使断裂带处于一个相对低应力、低能量的开放环境 ,Au、Ag等成矿元素随成矿流体从围岩或深部运移到断裂带 ,并在此富集成矿。
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| 关 键 词： | 构造应力场 韧性剪切带 脆性断裂带 焦家金矿床 |
ORE CONTROL OF TECTONIC STRESSTO JIAOJIA GOLD DEPOSIT |
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| Shu Bin,Guo Tao,Lu Guxian.ORE CONTROL OF TECTONIC STRESSTO JIAOJIA GOLD DEPOSIT[J].Geoscience——Journal of Graduate School,China University of Geosciences,1999,13(4):425-431. |
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| Authors: | Shu Bin Guo Tao Lu Guxian |
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| Abstract: | With the study of ore- forming kinetics of northwest Jiaodong area and typical gold deposit,the regularities of activity,movementand concentration of ore- forming elements are discussed.Some results are presented:( 1 ) in early period,the fracture is ductile,it is in an environment of high- pressure and high- temperature,the ore- forming materialsdid notconcentrate butbecame poor,( 2 ) in late period,fractures were brittle or brittle- ductile,it is in an environmentof low- pressure,low- energy and low- temperature,the ore- forming materials concentrated and precipitated to form the Jiaojia gold deposit. |
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| Keywords: | structural stress field ductile shear zone brittle fracture belt Jiaojia gold deposi |
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