Metallogenesis of superlarge gold deposits in Jiaodong region and deep processes of subcontinental lithosphere beneath North China Craton in Mesozoic

被引：17

作者：

周新华

杨进辉

张连昌

机构：

[1] Beijing 100029

[2] Chinese Academy of Sciences

[3] Institute of Geology and Geophysics

[4] China

来源：

Science China Earth Sciences | 2003年 / S1期

关键词：

superlarge gold deposit; lithospheric thinning; deep-process in Mesozoic; Jiaodong region;

D O I：

暂无

中图分类号：

P618.51 [金];

学科分类号：

0709 ; 081803 ;

摘要：

The study of ore-forming chronology indicates that the superlarge gold deposits in the Jiaodong region were formed in 120 + 10 Ma. Sr-Nd-Pb isotopic compositions from typical gold deposits suggest that ore-forming materials were derived from the multisources, mantle compo-nent was partly involved in mineralization, the deep dynamic processes are the major geological background of large-scale metallogenesis in the Jiaodong region in Mesozoic. The deep processes mainly include the effect of post deep-subduction of continental crust of the central orogen belt and the distant effect of subduction of the paleo-Pacific plate underneath the Eurasian conti-nent. However, lithosphere thinning, crust-mantle interaction, crustal extension and formation of large-type ore-controlling structures would be the comprehensive consequences of the above-mentioned geodynamic processes in the region.

引用

页码：14 / 25

页数：12

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