论文部分内容阅读
在塔里木盆地柯坪隆起西部的西克尔地区奥陶系鹰山组可溶岩层中发育着大量的萤石矿洞。通过对萤石洞中矿物的组合、产状以及萤石、方解石稀土元素地球化学特征的研究,探讨了萤石矿洞成矿流体的来源。认为西克尔地区萤石洞内的多种矿物是同一热液流体系统在不同演化阶段的连续产物。早二叠世岩浆热流体沿早期形成的断裂上涌,对该区储集层起到建设性改造作用。
A large number of fluorite mined holes were developed in the Ordovician Yingshan Formation soluble rock in the western Kerr area of the western Keping Uplift in the Tarim Basin. Through the study of the combination of minerals in the fluorite cave, the origin and the geochemical characteristics of the REE of fluorite and calcite, the origin of the ore-forming fluid in the fluorite mine is discussed. It is considered that many minerals in the fluorite cave in the Seikel area are the continuous products of the same hydrothermal fluid system in different evolution stages. The Early Permian magmatic hydrothermal fluid uplifted along the early faults and played a constructive reformation role in the reservoir.