CAJ | 학술논문

通过对西秦岭金矿床成矿年代学数据的收集和分析，可将本区的金矿床年代数据划分为245～225 Ma、220～190 Ma、170 Ma ±、135～110 Ma、75～45 Ma 5组。结合区域内构造演化和岩浆活动将金矿床划分了4个成矿期：印支期末—燕山初期（245～225 Ma），金矿化的初始富集阶段之一；燕山早期和燕山中期（220～190 Ma，170 Ma ±），西秦岭金成矿的主要形成时期；燕山晚期（135～110 Ma），再次（叠加）成矿阶段；喜马拉雅期热液活动对金矿床的影响。对区域地质背景和地球化学深入研究的基础上，采用新技术与新方法获得的年代学数据与前人数据对比，从而排除不确定性，精确地划分金矿成矿期次，能为金矿床成因、区域成矿规律总结和远景成矿预测提供重要的理论依据。
통과대서진령금광상성광년대학수거적수집화분석，가장본구적금광상년대수거화분위245～225 Ma、220～190 Ma、170 Ma ±、135～110 Ma、75～45 Ma 5조。결합구역내구조연화화암장활동장금광상화분료4개성광기：인지기말—연산초기（245～225 Ma），금광화적초시부집계단지일；연산조기화연산중기（220～190 Ma，170 Ma ±），서진령금성광적주요형성시기；연산만기（135～110 Ma），재차（첩가）성광계단；희마랍아기열액활동대금광상적영향。대구역지질배경화지구화학심입연구적기출상，채용신기술여신방법획득적년대학수거여전인수거대비，종이배제불학정성，정학지화분금광성광기차，능위금광상성인、구역성광규률총결화원경성광예측제공중요적이론의거。
According to the collection and analysis of the chronology data of gold deposits in Western Qinling Mountains,the gold deposits in Western Qinling Mountains have been classified into five metallogenic periods:245 Ma to 225 Ma,220 Ma to 190 Ma,170 Ma ±,135 Ma to 110 Ma,75 Ma to 45Ma.According to the regional plate-tectonic evolution and magmatism,the gold deposits in Western Qinling Mountains can be classified into four mineralization ep-ochs:①Late Indosinian-Early Yanshanian(245 Ma to 225 Ma),the preliminary enrichment stage of gold mineraliza-tion;②Early Yanshanian and Middle Yanshanian(220 Ma to 190 Ma,170 Ma ±),the major ore-forming stage of gold deposits in Western Qinling Mountains;③Late Yanshanian(135 Ma to 110 Ma),one more(telescoping)mineraliza-tion;④The influence of hydrothermal activities in Himalaya stage on the gold deposits.Based on thorough study on re-gional geological settings and geochemistry,geochronological data obtained by the application of new technology and methods are compared with the previous ones,eliminating uncertainty,accurately classifying gold mineralization periods and providing theoretical and application significance for genesis of gold deposits,regional mineralization regularity summary and prospecting.