江西彭山锡多金属矿田地质地球化学特征研究

彭山锡多金属矿田位于长江中下游的九瑞地区，是近年来发现的一个以富锡、铅、锌矿产为主的大型矿田。以黑云母二长花岗岩与二云母碱长化岗岩组成的彭山隐伏岩体为中心，各类金属矿床呈“晕圈式”分布。矿床的形成分为2个成矿期共7个阶段，通过对彭山岩体、典型矿床及围岩中的硫同位素、铅同位素、包裹体及稀土资料进行分析，反映出燕山晚期钙碱性花岗岩体的缦位与多金属矿床的形成有着密切的联系，岩浆活动为本区提供了大量的成矿物质。

Geology and geochemistry of the Pengshan Sn-polymetallic orefiled, Jiangxi

The Pengshan Sn-polymetallic ore filed is a large Sn-, Pb- and Zn-rich orefield found recently in the Jiujiang-Ruijin area in the middle-lower Yangtze valley. All types of ore deposits are distributed in a halo pattern surrounding the Pengshan buried pluton composed of two-biotite-alkali feldspar granite and biotite monzogranite. The formation of those deposits may be divided into two metallogenic epochs and seven mineralization stages. Analyses of the lead and sulfur isotopic compositions, REE data and fluid inclusions of the Pengshan pluton, typical deposits and country, rocks indicate that there is a close relation between the intrusion of late Yanshanian calc-alkaline granite and the formation of polymetallic deposits. The magrnatism provided a great deal of ore-forming materials for the Pengshan area.