| 黄金水,朱恺军,王双彬,朱作山.中国南方海相锰矿地质概论[J].地质找矿论丛,1996,(3):9-17 |
| 中国南方海相锰矿地质概论 |
| OUTLINE OF MARINE Mn DEPOSITS IN THE SOUTH CHINA |
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| DOI：10.6053/j.issn.1001-1412.1996.3. 002 |
| 中文关键词: 海相锰矿床 成矿时代 沉积－构造环境 含锰岩系 成矿地球化学过程 华南地区 |
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| 中文摘要: |
| 华南地区中-晚元古代(震旦纪前)、震旦纪-早古生代、晚古生代-早中生代三个地质历史时期的海相锰矿成矿作用,与中国南方古大陆边缘的构造演化同步发展,并受海积海域的边界条件和盆地性质支配;锰的成矿高峰期发生在早震旦世、晚泥盆世、二叠纪和三叠纪。这些多时代的海相锰矿的成矿过程,大致都经历过相似的成矿地球化学旋回,即;初始痕量Mn从多向源地汇入海区;Mn在海水中高浓度蕴集;Mn在盆地中沉淀和Mn与Fe、P早期分离,含锰沉积物埋藏后的成岩作用和稳定矿物相形成。 |
| 英文摘要: |
| In the South China Mn metallogeny during Middle-late Palaeozoicm Sinian-Early Palaeozoic,Late Palaeozoic-Early Mesozoic Periods evolved together with marginal tectonics of the South China Palaeo-continent.It is controled by margin condition of marine sedimentary fields and property of sedimentary basins. The Early Sinian,Late Early Devonian, Permian and Triassic epoches are peak period of Mn metallogeny.Similar geochemical cycles tooke place in the all metallogenic process, ie. multi-source Mn merged into sea then concentrated at some marine fields to precipitate in basins with Fe separated from Mn and stable Mn-minerals formed during diagenesis after the bury of the Mn-bearing sediments. |
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