International Journal of Research in Social Sciences

  • Year: 2018
  • Volume: 8
  • Issue: 10

Mineralization Control Effect of Geochemical Tectonic Macroscopic Frame of China

  • Author:
  • Jin-zhong Gong
  • Total Page Count: 17
  • DOI:
  • Page Number: 500 to 516

Hebei Institute of Geophysical Exploration, Langfang, 065000, China

Abstract

Due to the close relationship between rock geophysics and geochemistry, the geochemical distribution of stream sediments in China is closely related to the tectonic framework. Based on the transitional zones of macro element change, we can outline the geochemical tectonic framework of China, and draw the four horizontal, three vertical and one shield, and basically correspond to the geophysical tectonic framework. Four horizontal is: the variation line of Si-K-Na-Mg content in the Tianshan-Yinshan-Yanshan, K-Na content in the Kunlun mountain-Qinling-Dabie mountain, Si-K-Na content in the Gangdise-Nangqingtanggula, Al-K-Ca-Mg content in Nanling. Three vertical is: the variation line of Al-Fe content in Zhang Guangcai ridge-Qianshan, Greater Hinggan Si-Ca-K-Na-Taihang mountains Ca-Mg-Wuling mountain Ca-Mg content, Helan mountain-Minshan Ca content. One shield area is Yunnan-Guizhou plateau-Emeishan basalt rock area Al-Fe-Ti-Mn and the basic element enrichment region. One Knife is: Nanling-Wuyi mountain Jurassic magmatic rock acid element enrichment zone. In mainland China, the macroscopic elemental division line divides 13 geochemical blocks with significant abundance characteristic. The tectonic framework controls the significant chemical abundance of rock and thus restricts the mineralization characteristics. Their final result is that the metallogenic concentration zones of different tectonic frameworks are also different. Its basic law is east-west differences, basin ridge differentiation, banded structure, elemental spatial zonation. That the linear tectonic belt is orogeny, magmatic activity frequent areas, becoming the concentrated areas of the distribution of polymetallic deposits, the stable triangle areas is conducive to the accumulation of oil and gas resources.

Keywords

Tectonic geochemistry, Geotectonic framework, Geochemical blocks, Mineralization control effect, China mainland