中國(guó)的全球構(gòu)造位置和地球動(dòng)力系統(tǒng)
[Abstract]:In the global plate tectonics, China is located in the southeast of the Eurasian plate, the Indian plate in the south, the Pacific plate in the east and the Philippine sea plate in the east. In geological history, the main parts of China, marked by the small cratons of China, Yangtze and Tarim, belong to the tectonic domain of the transition between Gondwana and Siberia: Paleozoic period, in the southern part of the Paleo-Asian Ocean. A complex continental margin of Gondwana; Mesozoic, north of Tethys, part of the continent of Laoya. The tectonic evolution of Phanerozoic China was controlled by the three major dynamic systems of Paleo-Asian Ocean, Tethys Paleo-Pacific Ocean and Pacific Ocean, which formed three tectonic domains of Paleo-Asian Ocean, Tethys and Pacific Ocean. Neither the paleo-Asian ocean nor Tethys is a simple oceanic basin, but a complex oceanic basin system composed of a series of submarine rift zones (small ocean basin zones) and numerous microcontinental blocks. In addition, the Mesozoic and Cenozoic Pacific and Tethys tectonic domains were superimposed on the Paleozoic Paleo-Asian oceanic tectonic domains, which made the Chinese geological tectonic images present mosaic structures on two-dimensional planes and overpass structures in three-dimensional space. Make China not only Asia, but also the most complex of the global structure of the region. The superposition and compounding of geodynamic systems in different stages in China make polycyclic tectonic-magmatic and metallogenic processes the most prominent features of China's geology. Therefore, most of the orogenic belts in China are polycyclic composite orogenic belts, the metallogenic (regional) belts are mostly polycyclic composite metallogenic belts, and the large petroliferous basins are mostly polycyclic superimposed basins.
【作者單位】: 中國(guó)地質(zhì)科學(xué)院地質(zhì)研究所;
【基金】:中國(guó)地質(zhì)調(diào)查項(xiàng)目(編號(hào):121201102000150009-01;121201102000150009-02;12120115070301)的成果,2015年10月中國(guó)地球科學(xué)聯(lián)合學(xué)術(shù)年會(huì)(CGU)上,“中國(guó)及鄰區(qū)海陸大地構(gòu)造專題”口頭報(bào)告之一
【分類號(hào)】:P548
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