Geology of Gold Ore Deposits in Western Linyi of Shandong Province,China

被引:0
|
作者
Tiebing Liu
Qingdong Zeng
Yuanchao Shen
Guangming Li
机构
[1] 100029 China
[2] 100029 China
[3] Chinese Academy of Sciences
[4] Chinese Academy of Sciences Beijing
[5] Institute of Geology and Geophysics
关键词
magmatic hydrothermal gold deposit; epithermal gold deposit; diorite porphyry; syenite porphyry; western Linyi;
D O I
暂无
中图分类号
P618.51 [金];
学科分类号
0709 ; 081803 ;
摘要
Western Linyi of Shandong Province is one of the most important gold ore mineralization concentration areas. Mesozoic gold ore deposits in this area can be subdivided into two types: magmatic hydrothermal and epithermal gold deposits. The occurrences of gold ore bodies are controlled by structures. Related subvolcanic rocks can be subdivided into high potassium calc-alkali series and alkaline series. These two types of subvolcanic rocks are of different geochemical features and different sources. The high potassium calc-alkali rocks are derived from enriched mantle and contribute to the formation of magmatic hydrothermal gold ore deposits including skarn gold-copper ore deposit and porphyry gold ore deposit. Alkaline rocks are derived from lower crust and they host epithermal gold deposits. Comprehensive studies show that there is no evolutionary or transitional relationship temporally and genetically between the epithermal gold deposit and the high temperature magma hydrothermal gold deposit in the western Linyi.
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页码:69 / 81
页数:13
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