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山东招平断裂带大磨曲家金矿床流体包裹体初步研究   总被引:1,自引:0,他引:1  
The Damoqujia gold deposit, discovered recently and located in the north of Zhaoping fault zone, is a large altered rock type deposit. In this paper, we report the preliminary research results of the fluid inclusions and discuss its metallogenic implications. The homogenization temperatures of fluid inclusions fall into four ranges: 310 ~350℃, 230 ~270℃, 160 ~ 200℃ and 110 ~ 150℃ ; corresponding to the four stages of hydrothermal ore~forming processes : coarse grain pyrite~milk white quartz stage ( I ), smoky gray Au~bearing quartz~fine grain pyrite stage ( 11 ) , Au~bearing polymetallic sulfide~quartz stage ( III ) , and quartz~carbonate stage ( IV ). Ore~forming fluid is with low salinity and low density, ranging from 1.4 WtNacl% to 13.6 WtN~cl% and from 0.48g/cm~ to 1.03g/cm~ respectively. The inclusions are dominated by H20 and CO2 in gaseous compositions, and Na + and K ~ in positive ions, SO~~ and CI ~ in negative ions of liquid compositions. Au~S complex is the major form for transportation of gold. The pressure varied from 260MPa to 340MPa during the formation of CO2~bearing inclusions at the early mineralization; the fluids are rich in SO~~ and Na ". The pressure is 26 ~49 ~ 105 Pa during the formation of the aqueous salt inclusions in late mineralization, the inclusions are rich in CI~ ( F~ ), Na~. ~$18Oqu~,zis 10. 64 ~ 12.68%0, and the corresponding ~518 OH2o and ~&D is -5.44 ~ 6.47%0 and -95.52 ~ 106.48%o respectively. Based on the studies about compositions and hydrogen and oxygen isotopes of inclusions, it is evidenced that ore-forming fluid is magmatic hydrothermal fluid in early period, but affected by meteoric water in late.  相似文献   
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为了加强地学期刊资源的整合,实现地学期刊集群化和数字化,<中国地学期刊网>应运而生.它服务于我国地学期刊,倡导学术期刊OA化,通过构建学术期刊多元化发展平台,实现资源共享,最终目标是实现地学期刊携手打造共同的"区域性"的地学期刊平台,旨在建立一个本土的质量高、快速便捷、更加开放获取的新型学术期刊体系.  相似文献   
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地学科技期刊作为地球科学研究成果展示和交流的载体和平台,对于促进地球科学的发展具有举足轻重的作用。我国地学科技期刊有着悠久的办刊历史,特别是建国60年来,我国地质期刊事业从小到大、从弱到强,全面发展,形成了完善的期刊体系,在推动我国地学科技进步,提高国家地学科技创新能力,传播地学科技成就和知识,追赶世界地学科技前缘,发挥了重要的导向作用,在国内外地质期刊界有着重要的影响,是我国科技期刊界一支重要力量。时值建国60周年之际,地学科技期刊更应把握机遇,发扬名优特刊优势,全面提高学术水平和综合竞争能力,立足国内,走向世界,为民族振兴、国家富强贡献力量。  相似文献   
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