摘要
金顶铅锌矿床矿石矿物的演化经历了沉积成岩期、热卤水成矿期和表生成矿期三个阶段,在这三个演化阶段中生物有机质均起着重要的作用。沉积成岩期表现为生物体对铅、锌等成矿元素的吸附作用以及腐殖酸的吸附、配合作用;热卤水成矿期表现为有机羧酸的溶蚀作用以及对成矿环境的控制作用;表生成矿期主要表现为地表细菌的氧化作用以及深部细菌的还原作用。
The ore minerals of the Jinding Pb-Zn deposit formed in three different periods: sedimentary-diagenetic period, hydrothermal period, and supergene mineralization period. Biologic and organic matter played an important role in different periods. Biology and humus acids absorbed Pb and Zn during sedimentary-diagenetic period. Carboxylic acids could dissolve Pb and Zn and control mineralization environments during hydrothermal period. During supergene mineralization period, bacteria could participate in oxidization on the earth's surface, and deoxidize in deep layers.
出处
《资源调查与环境》
2004年第3期184-189,共6页
Resources Survey & Environment
关键词
金顶
有机质
生物成矿作用
铅锌矿
Jinxing
organic matter
biogenic mineralization
Pb-Zn deposit
