摘要
在金顶铅锌矿床的成矿时期,其含矿岩层的成岩状态以半胶结状为主,为一导水性和容水性较好的古含水层。区域地质发展史和区域古水文地质发展史的恢复结果表明晚云龙期末为本区唯一可能的成矿时期。通过对矿床古水文地质痕迹分析,并结合含矿层的岩性岩相分析,矿液运移行为可描述为:矿液来源于深部,因受沉积湖盆边缘的外来推覆体的阻挡,而沿导水性好的粗粒岩相带向湖中的穹隆流动。
The diagenetic state of ore-bearing strata was that of semi-cementation during the ore-forming period of Jinding Pb-Zn deposit. The strata were ancient aquifers with stronger water-conducting and storing capacity. The result of the restored evolutional history of regional geology and paleohydrogeology demonstrated that only possible period for ore-forming is Yunlong ( Ey ) . By the analysis of the remains of paleohydrogeology of ore deposit, combined with the sedimentary fades analysis of the ore-bearing strata, the movement of the ore fluid can be expressed that the fluid came from deep part; when it met with the barrier of overlying foreign nappe, it turned its moving direction toward a dome in the ancient lake basin
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1989年第5期489-494,共6页
Earth Science-Journal of China University of Geosciences
关键词
铅锌矿床
成矿溶液
古水文地质
Pb-Zn deposit, ore-bearing strata, diagenetic state, sedimentary facies, paleohydrogeological history, dynamic layer of groundwater, pathway of ore fluid, Yunnan province
