Title: ON THE MIDDLE PROTEROZOIC RIFTING IN CHINA AND ITS CONTROL OVER STRATABOUND COPPER DEPOSITS
Abstract:From the beginning of middle Proterozoic the evolution of earth's crust reached a new stage whichwas characterized by the worldwide tension-Asa result, intracontinentil faults, rifts, aulacogens and s...From the beginning of middle Proterozoic the evolution of earth's crust reached a new stage whichwas characterized by the worldwide tension-Asa result, intracontinentil faults, rifts, aulacogens and subsidence zones, and continental marginal geosynclines were greatly developed. Middle Proterozoic is also the most important time for the sediment-hosted stratabound copper deposits. The relationship between the geneses of these deposits and the continental rifting has drawn attention of many geologists. Taking Dongchuan type copper deposits as the example, this paper gives an extensive analysis and discussion on the tectonic background of some i ml:ortant middle Proterozoic stratabound copper deposits in China, and points out that they were also controlled by rift-aulacogen or similar tensile depression structures. Some major features of these deposits are also summed up in this paper.Read More
Publication Year: 1989
Publication Date: 1989-01-01
Language: en
Type: article
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