摘要
豫西金银矿床的成矿时代问题目前尚有许多不同认识。本文通过对砂金分布、岩矿脉体穿插关系以及矿石同位素测年结果等实际资料的综合研究分析，证明本区金银矿床的主成矿期应为燕山晚期；同时归纳出区内各类金属矿产在时间演化上具有长期性、多期性、阶段性、序列性、继承性诸项规律。
Different opinions on the metallogenic age of Au, Ag deposits in the con juncture area of HenanShaanxi remains to be seen. The comprehensive study of distribution of placer gold, intersection of one rock/ore vein system with another, and isotopic age determination for ores, reveals that the main metallogenic ageof Au, Ag deposits in the area is the late Yanshanian period. Moreover, the long-term, multiphase of evolution of metallic mineral resources can be divided into different stages, and constitutes a sequence which canbe further classified into second seqences, and displays some characteristics of heritance in the origin.
关键词
金矿床
银矿床
多金属矿床
时间演化
成矿期
conjuncture area of Henan-Shaanxi
main metallogenic age, temporal distribution
