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The Evolutionary History of Ore‐forming Processes of Metallic Ore Deposits in Northern Guangxi 1
Author(s) -
Yuchuan Chen,
Jinwen Mao,
Ping'an Wang
Publication year - 1995
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.1995.mp8002003.x
Subject(s) - precambrian , geology , geochemistry , phanerozoic , crust , mineralization (soil science) , mantle (geology) , paleontology , cenozoic , structural basin , soil science , soil water
The northern Guangxi region is an important rare metal, rare earth metal and polymetallic metallogenic province. In the region there exist five metallogenic series and two metallogenic subseries, whose metallogenesis shows features of polycyclic spiral evolution throughout the geological history. As far as various cycles are concerned, mantle‐derived ore substances were reduced while crust‐derived ore substances increased from early to late times; in the whole geological evolutionary history, mantle‐derived substances decreased gradually while crust‐derived ones increased. Meanwhile ore element associations became more and more varied. In terms of space, mineralization migrated from the old basement outwards, i.e. from west to east during the Precambrian, and from north to south during the Phanerozoic, and again from east to west during the Yanshanian.