| 赵百胜,刘伟.甘肃省阳山金矿床流体包裹体特征及其地质意义[J].地质找矿论丛,2004,(2):105-109 |
| 甘肃省阳山金矿床流体包裹体特征及其地质意义 |
| CHARACTERS OF FLUID INCLUSIONS AND DISCUSSION ABOUT IT’S GEOLOGICAL MEANING IN YANGSHAN GOLD DEPOSITS, GANSU PROVINCE |
| 投稿时间：2003-10-29 修订日期：2004-03-08 |
| DOI：10.6053/j.issn.1001-1412.2004.2. 008 |
| 中文关键词: 流体包裹体 特征 阳山金矿床 甘肃省 |
| 英文关键词:fluid inclusions characters Yangshan gold deposits Gansu province |
| 基金项目:武警黄金部队"阳山金矿床成因及深部预测研究"项目(编号:WJ00-03)资助。 |
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| 中文摘要: |
| 甘肃省阳山金矿床是一个赋存于泥盆系浅变质岩中的似微细浸染型超大型金矿床。研究表明矿石中石英及方解石包裹体分为两种成因共9种物理状态类型,均一温度为105～310℃。成矿流体盐度w(NaCl)=1.6%～10.6%,密度为0.35～1.02g/cm3,成矿压力为400×105～800×105Pa。成矿流体呈中性偏弱碱性、弱还原性,以大气降水为主,岩浆水也不同程度地参与了成矿作用。 |
| 英文摘要: |
| Yangshan gold deposit situated in Gansu province is a super-large micro-disseminated gold deposits hosted in Devonian metamorphic detrital rock. Study on fluid inclusions of quartz and calcite show that there are nine physical types of fluid inclusions. Their homogenization temperature range is 105～310℃, the salinity 1.6%～10.6%, the density 0.35～1.02 g/cm3, and the metallogenic pressure is about 400×105～800×105Pa. The metallogenic fluid is neutral to weakly alkalic and reduced, mainly derived from ancient meteoric water, in some extent magma water also participated in mineralization. |
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