U.S.-China Cooperative Research: Geochemical Studies of Copper-Gold Skarn Deposits in the Ji Long District, Hubei Province, China

建议由美国科学家和中国参与的合作研究项目，研究季龙矿石中含铜和含金的夕卡岩矿床的地球化学特征湖北省阳新-大冶地区，中国。拟议研究的目标是确定矿石的地球化学特征并确定形成条件。在利用野外和矿山曝光以及广泛的钻芯库对季龙矿床进行系统的野外采样之后，将对矿石和脉石矿物进行详细的岩相学和电子探针分析。获得的数据将用于确定矿床内的矿物学和矿物化学，并建立共生序列。这些信息将得到详细的流体包裹体研究的补充，包括标准的显微测温和激光拉曼分析，以确定成矿流体的组成和物理状态。该项目为美国和中国科学家之间的合作研究提供了一个极好的机会，并建立了他们在硫化物矿石矿物学和矿石野外关系方面的各自知识和优势。在中国的协作野外采样之后，将在美国进行详细的矿物学和分析研究。所获得的信息将被用来确定成矿的地球化学和物理条件，并有助于了解夕卡岩矿床在该地区侵入体周围形成的位置。

A cooperative research program involving scientists from the United States and China is proposed to investigate the geochemical characteristics of copper and gold-bearing skarn deposits of the Ji Long Ores of the Yangxin-Daye area of Hubei Province, China. The goals of the proposed research are to establish geochemical characteristics of the ores and to determine the conditions of formation. Systematic field sampling in the Ji Long deposits using field and mine exposures and an extensive drill core library will be followed by detailed petrographic and electron microprobe analyses of ore and gangue minerals. The data obtained will be used to define the mineralogy and mineral chemistry within the deposits and to establish paragenetic sequences. This information will be complemented by detailed fluid inclusion studies, including standard microthermometry and laser Raman analyses, to define the composition and physical state of the mineralizing fluids. The project provides an excellent opportunity for cooperative research between the American and Chinese scientists and builds upon their respective knowledge and strengths of sulfide ore mineralogy and field relationships of the ores. Collaborative field sampling in China will be followed by detailed mineralogical and analytical studies in the United States. The information derived will be employed to define the geochemical and physical conditions of ore formation and aid in understanding where the skarn deposits form around the intrusions of the district.