地质与资源2025，Vol.34Issue(5)：618-629,12.DOI:10.13686/j.cnki.dzyzy.2025.05.010
辽东宽甸殷家堡子古元古代钴矿床成矿时代及其地质意义
Metallogenic age of the Paleoproterozoic Yinjiapuzi cobalt deposit in Kuandian,eastern Liaoning:Geological implication
摘要
Abstract
The Yinjiapuzi cobalt exploration area is located within the Liaoning-Jilin orogenic belt,with the cobalt ore bodies hosted in the magnetite pyrite biotite tourmaline granulite of the first member of Lieryu Rock Formation,Liaohe Rock Group.Based on the exploration results and regional geological background,this study discusses the characteristics,mineralization process,and metallogenic age of Yinjiapuzi cobalt deposit.The zircon U-Pb dating of diorite porphyrite dikes cross-cutting the cobalt ore body,combined with previous data,indicates that the sedimentary mineralization of cobalt in Lieryu Formation possibly occurred during 2.09-2.19 Ga,while the regional metamorphism and deformation possibly took place in 1.85-1.95 Ga.The formation and metamorphic ages of Paleoproterozoic diorite porphyrite reported in this study has enriched the record of Paleoproterozoic magmatic activity and metallogenic sequence of cobalt deposits.Furthermore,the study identifies diorite porphyry veins as a significant prospecting indicator,which may provide references for cobalt exploration in the Liaoning-Jilin orogenic belt.关键词
钴矿/闪长玢岩/找矿标志/成矿时代/辽宁省Key words
cobalt deposit/diorite porphyrite/prospecting indicator/metallogenic age/Liaoning Province分类
天文与地球科学引用本文复制引用
赵明磊,李超,常风,王文清,王超,朱筱宇,张馨宁,肇涛金..辽东宽甸殷家堡子古元古代钴矿床成矿时代及其地质意义[J].地质与资源,2025,34(5):618-629,12.基金项目
国家重点研发计划项目"沉积岩-变沉积岩容矿型和红土型矿床钴镍成矿作用与找矿勘查"(2022YFC2903502) （2022YFC2903502）
辽宁省自然资源厅省级地质勘查项目"辽东地区钴矿资源潜力评价与重要靶区查证"(辽自然资项[2023]44号),"辽宁省海城市马风-宽甸县红石钴镍矿调查评价"(辽自然资项[2024]48号). （辽自然资项[2023]44号）
