青海省洪水河铁矿床地质特征及成因初探

洪水河铁矿床位于东昆仑早古生代——晚古生代——早中生代复合适山系之昆中花岗——变质杂岩带。通过分析研究认为，洪水河铁矿床的主矿体呈层状、似层状、透镜状顺层产于蓟县纪狼牙山组钙质绿泥千枚岩中，矿体规模大，矿体厚度、连续性、矿石品位相对稳定。其成矿地质背景和矿床地质特征表明，该矿床属于沉积变质型铁矿床。

Study on genesis and geological characteristics of Hongshuihe lron deposit in Qinghai province

Hongshuihe iron deposit is located at multiple orogenic series of Pzl-Pz2-Mzl of the Kunzhong granite-metamorphic belt in the East Kunlun. The analysis shows that the chief orebody presents to be layered ,sub-layered and to be in lens shape within calcium and chlorite phyllite of the Jixianji group. The orebody is large scale. The thickness, continuity and ore grade is relatively stable. The geological back ground and deposit charactersitics indicates that it is belonged to the sedimentary-metamorphic iron deposit.