| 秦岭造山带构造-成矿旋回与演化 |
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| 引用本文： | 王平安,陈毓川.秦岭造山带构造-成矿旋回与演化[J].地质力学学报,1997,3(1):10-20. |
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| 作者姓名： | 王平安 陈毓川 |
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| 作者单位： | 中国地质科学院地质力学研究所,中国地质科学院 |
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| 摘 要： | 构造与成矿活动是否具有旋回性是地质界长期争论的一个例题。本文根据矿床成矿列理论和方法,论述了秦岭造山带构造－成矿活动,划分出新太古代古元古代早期、古元古代晚期、中－新元古代、早古生代、晚古生代和中、新生代６个构造－成矿旋回,探讨了 每个讫回的矿床成矿系列特征和成矿演化历史。
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| 关 键 词： | 造山带 矿床 成矿系列 成矿旋回 成矿演化 |
TECTONO-MINEROGENIC CYCLES AND MINEROGENETIC EVOLUTION THROUGH GEOLOGICAL HISTORY IN THE QINLING OROGENIC BELT |
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| Wang Pingan and Chen Yuchuan.TECTONO-MINEROGENIC CYCLES AND MINEROGENETIC EVOLUTION THROUGH GEOLOGICAL HISTORY IN THE QINLING OROGENIC BELT[J].Journal of Geomechanics,1997,3(1):10-20. |
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| Authors: | Wang Pingan and Chen Yuchuan |
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| Institution: | Institute of Geomechanics, CAGS and Chinese Academy of Geological Sciences |
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| Abstract: | It has been disputed for a long time whether tectonic and minerogenic cycles did ever exist through geological history.On the basis of the theory and method of the minerogenic series of ore deposits,the authors advanced and discussed a concept of "tetono-minerogenic cycle".Cyclicity of tectono-minerogenic activities in the Qinling orogenic belt is systematically discussed in this paper,and six tectono-minerogenic cycles are drawn:(1) from the Latest Archean to the initial Proterozoic;(2) the Early Proterozoic;(3) Middle Proterozoic and the Late Proterozoic;(4) the Early Paleozoic;(5) the Late Paleozoic and (6) Mesozoic to Cenozoic.Minerogenic evolution is duscussed by a summarization of the characteristics of each of the six minerogenic cycles.The mineralization in the Qinling orogenic belt was either long and continuous or intermittent and cyclic.Many of the ore deposits are formed in two major peak mineralization periods,one is from the Middle Proterozoic to the Early Paleozoic,characterized by mantle-derived magmatic intrusions and marine volcanism;the other is from the Mesozoic to the Cenozoic,during which the intermediate and acid magmatic intrusions and continental volcanism are mainly derived from the crust or with a mantle-crust source.The 24 minerogenic series of ore deposits in this orogenic belt are considered to have formed in three major types of tectono-minerogenic processes,ie splitting,convergence,and a relatively stable stage.The mineralization associated with volcanism and splitting would have experienced a vibration between the north and south Qinling orogenic belt through out the geological history. |
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| Keywords: | Qinling orogenic belt minerogenic series of ore deposits tectono-minerogenic cycle mineralization evolution |
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