元岭金矿蚀变破碎带特征及其找矿意义

根据对元岭金矿三条蚀变破碎带一般地质特征、微量元素特征的对比研究，并借鉴邻近矿区蚀变破碎带的矿化特征，本文阐明了元岭蚀变破碎带矿化的有利构造部位，总结了蚀变破碎带特征与矿化强度之间的关系，指出蚀变破碎带的矿化蚀变元素为中低温组合，矿化蚀变愈强则参与元素的种类愈多、数量愈大。围岩性质对矿化蚀变有一定影响，围岩中的易迁移亲铜元素和亲硫铁族无素对矿化有利。据此，为进一步成矿预测、评价蚀变破碎带的含矿性提供依据。

CHARACTERS OF ALTERED FRACTURE ZONES IN YUANLIN GOLD DEPOSIT AND ITS PROSPECTING SIGNIFICANCE

Based on the comparative studies of general geolgical characters and micro element characters of three altered fracture zones in Yuanlin gold deposit, and to draw lessons from the mineralized characters of altered fracture zones of adjacent gold field, this paper expounds favourable tectonic positions to the mineralization of altered fracture zones, summarizes the relations between the characters of altered fracture zones and the intensity of mineralization indicates that the mineralization-alteration elements of altered fracture zones are lowto moderate temperature assemblage,the more intense the mineralization-alteration is,the more the type of the joined elements is and the greater the quantity of the joined elements. The character of wall rocks has some effect on mineralization-alteration, the migrated chalcophile elements and migrated sulfophile iron group elements in wall rocks are favourable to gold mineralization. Authors provide the scientific basis for the metallogenetic prognosis and the evaluation of ore-bearing property of altered fracture zones.