摘要
中国层控汞、锑、砷矿床,根据成矿作用、地质产状和地球化学特点分为十种类型。即锡矿山式锑矿床、晴隆式锑矿床、湘西式钨锑金矿床、公馆式汞锑矿床、万山式汞矿床、务川式汞矿床、界牌峪式雄黄和雌黄矿床、水落式砷汞金矿床、丫他式砷锑金矿床和龙潭式砷铅铊矿床,它们在成因上与岩浆岩无关。成矿模式划分为沉积成岩(包括预富集)阶段或后生改造阶段。在层控汞、锑、砷矿床地球化学和成矿机制的研究基础上提出了找矿前提。
The strata-bound mercury, antimony, and arsenic ore deposits in China can be grouped into ten genetic types according to the characteristics of minerogenetic processes, geological occurrence, and geochemistry, i.e., antimony ore deposits of Xikuangshan and Qinglong type, tungsten-antimony-gold ore deposits of Xiangxi type, mercury-antimony ore deposits of Gongguan type, mercury ore deposits of Wanshan and Wuchuan type, realgar-orpiment ore deposits of Jie-paiyu type, arsenic-mercury-gold ore deposits of Shuiluo type, arsenic-antimony-gold ore deposits of Yata type, and arsenic-leah-thallium ore deposits of Longtan type. They have no genetic relationship with magmatic rocks.Their minerogenetic pattern is devided into the depositing-diagenetic (the preconcentra-ting) stage, and the epigenetic-reworking stage. On the basis of geochemical studies of strata-bound mercury, antimony, and arsenic ore deposits and their mineralizing mechanisms, some prerequisites for prospecting these deposits have been proposed.
出处
《地球化学》
CAS
CSCD
北大核心
1989年第2期131-138,共8页
Geochimica
