CAJ | 학술논문

兰坪铅锌矿床是目前我国最大的Pb-Zn矿床，一般认为其成因为热液成矿作用。兰坪盆地自中生代以来，形成了极为丰富的金属与盐类矿产，是我国著名的热液成矿带，同时还拥有大型的石膏矿床。以成矿过程中石膏的流体性质为主要研究内容，选择兰坪金顶铅锌矿区的架崖山—北厂矿段为主要样品采集区。以热液矿物作为研究对象，研究了石膏的结构和构造。通过矿物学-岩相学研究，观察石膏在不同矿化阶段的这些特征，观察石膏在热液成矿期次中的这些特征；结合电子探针微区分析，基本查明石膏在各阶段流体的化学组成。
란평연자광상시목전아국최대적Pb-Zn광상，일반인위기성인위열액성광작용。란평분지자중생대이래，형성료겁위봉부적금속여염류광산，시아국저명적열액성광대，동시환옹유대형적석고광상。이성광과정중석고적류체성질위주요연구내용，선택란평금정연자광구적가애산—북엄광단위주요양품채집구。이열액광물작위연구대상，연구료석고적결구화구조。통과광물학-암상학연구，관찰석고재불동광화계단적저사특정，관찰석고재열액성광기차중적저사특정；결합전자탐침미구분석，기본사명석고재각계단류체적화학조성。
Lanping Pb-Zn deposit has been known at home and abroad as the largest Pb-Zn deposit in our country. Lanping Jinding Pb-Zn deposit is generally considered as forming hydrothermal mineralization. Lanping basin which formed abundant metal and salt mineral resources since Mesozoic is a famous belt of hydrothermal mineralization as the largest gypsum deposit in China. In this article,the main content of study is the fluid properties of gypsum mineralization process. We collected samples in Jiayashan-north factory which is in Lanping Jinding Pb-Zn deposit. Taking the hydrothermal minerals as study objective,we studied the structure and construction of gypsum. According to Mineralogy and petrography study to observe these features of gypsum in hydrothermal mineralization period and combining the micro-analysis of the electron probe,the chemical composition of gypsum in each fluid phase was basically ascertained.