【摘要】 凤梨山铅锌矿床产于中酸性岩浆岩与三叠系海相碳酸盐地层的热接触变质晕内。闪锌矿为主要的矿石矿物。其成矿作用可分为沉积成岩同生成矿期(Ⅰ)、渗流热水成矿溶液改造富集成矿期(Ⅱ)和热接触变质成矿期(Ⅲ)。本文根据闪锌矿的地质产状、矿物共生组合及成矿作用的特点,对它进行了物理和化学性质、矿物包裹体特征、硫与铅同位素地球化学的研究,并探讨了它的成因问题。更多还原

【Abstract】 The lead-zinc deposit of Fenglishan occurs in the thermal contact metamorphic aureole of intermediate-acid magmatic rocks with marine carbonates of Triassic. Sphalerite is the main ore minerals. The sphalerite mineralization is classified into the syngenetic sedimentary mineralization period（1）,the mineralization period （Ⅱ） reconstracted by the ore fluids of infiltration thermal water,and the thermal contact matamorphic mineralization period（Ⅲ）.All sphalerite have positie δ³⁴S values （ranging from+9. 9 to+15. 8‰） and are characterized by rich heavy sulfur isotopes. The sulfur of sphalerite is originated from the sedimentary source.更多还原