| 略论海陆成矿问题 |
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| 关键词:continental and oceanic tectonic evolution continental and oceanic metallogeny |
| 基金项目:中国地质调查局地质调查项目“中国矿产地质志”(编号: DD20221695);“全国海陆矿产资源图件编制更新”(编号: DD20221696) |
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| 摘要: |
| Brief Discussion of the Continental and Oceanic Metallogeny |
| Inhomogeneous differentiation split the Earth’s crust into continental and oceanic crusts. The various structural features of the continental and oceanic tectonic belts were formed through the continental nucleus, platform, continent splitting, continental accretion, oceanic crust forming, and subduction or continent-continent collision. China’s continental and oceanic crust structural evolution has experienced four stages: nucleus forming in Archean, platform forming in Proterozoic, Pangaea forming from Sinian to Triassic, and Pangaea splitting in Meso-Cenozoic eons. There are five marginal tectonic belts: Dzungaria–Great Khingan, Tarim–North China, Yangtze–South China, Gangdise–Himalaya, and West margine Pacific. The Archean granitoid-greenstone belts, Proterozoic rift zone, and Phanerozoic continental margin are important environments for continental and oceanic metallogeny. It is very important for metallogeny that advantaged metallogenetic multi-factors are coupled. Their coupling mechanism and space-time distribution in continental-oceanic margins are key to outlining advantaged metallogenetic areas. |
| PEI Rong-fu,MEI Yan-xiong,WEI Ran,ZOU Bin,ZHAO Miao,LI Zhen-qing,WANG Hao-lin.2023.Brief Discussion of the Continental and Oceanic Metallogeny[J].Acta Geoscientica Sinica,44(4):565-569. |
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