Title: Tectonic Evolution of southwestern Fujian Province and spatial-temporal distribution regularity of mineral deposits
Abstract: Based on the previous researches,we discuss the main types and characteristics of deposits developed in southwestern Fujian Province and recognize these deposits in three episodes: Jinningian marine volcanism related Pb,Zn,Ag polymetallic VMS deposits; Hercynian-Indosinian intrusive rocks related Fe,Cu,Pb,Zn polymetallic deposits; and Yanshanian intermediate-acid intrusive rocks related Fe,Cu,Pb,Zn,Mo,W,Sn,Au,Ag,U polymetallic deposits. And the latter one could be subdivided into Early Jurassic I-type granitoids related Fe,Cu,Pb,Zn deposits; Late Jurassic S-type granitoids related W,Sn,Mo,Bi deposits;Lower Cretaceous intermediate-acid intrusive rocks related skarn-type Fe, Cu, Pb, Zn, Mo deposits; and Lower Cretaceous intermediate-acid intrusion-subvolcanism related Au,Ag,Cu,Mo,Pb,Zn,U deposits. After descriptions of the basic geological characteristics and spatial-temporal distribution of these deposits,it is suggested that Jinningian polymetallic VMS deposits were occurred in the Zhenghe-Dapu bimodal volcanic basin which were generated during the cracking process of South China continental block in Neoproterozoic,Hercynian-Indosinian magmatic-porphyry deposits were occurred in the intrusion process of intracontinental extension and extrusion,and Yanshanian deposits were generated in the intrusion-subvolcanism which were occurred in the alternate of intracontinental extension and extrusion in Pacific tectonic domain period.
Publication Year: 2015
Publication Date: 2015-01-01
Language: en
Type: article
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Cited By Count: 16
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