地质通报2026，Vol.45Issue(7)：1246-1261,16.DOI:10.12097/gbc.2025.07.047
四川可尔因锂矿田构造—岩浆耦合控矿作用与找矿预测
Pegmatite cluster aggregation patterns and tectonic-magmatic coupling ore-controlling mechanisms and prospecting prediction in the Ke'eryin lithium ore field,Sichuan Province
摘要
Abstract
[Objective]The Ke'eryin pegmatite field in Sichuan Province is an important lithium concentration zone in China and one of the key survey areas in the new round of strategic breakthrough actions for mineral exploration.Research on ore-controlling factors remains insufficient,particularly regarding the controlling mechanisms of the distribution and morphological characteristics of pegmatite dikes and ore bodies,which restricts the prediction of prospecting targets and exploration of pegmatite-type lithium deposits in the region.[Methods]Based on the distribution patterns and occurrence characteristics of pegmatites in the Ke'eryin area,this study analyzes their relationship with the Ke'eryin pluton and regional structures.It elucidates the ore-controlling structural characteristics of pegmatite-type lithium deposits in the Ke'eryin area,characterizes the morphology,scale,and spatial distribution of pegmatite dikes,and explores their intrinsic links with the pluton,regional tectonics,and joint-fracture systems.[Results]The study results indicate that the anticlinal core and its vicinity at a certain distance from the Ke'eryin pluton are favorable metallogenic structural positions.Based on the morphological characteristics and spatial aggregation patterns of pegmatite dikes,three types of swarm-band aggregation models are proposed for pegmatites in the Ke'eryin area:parallel aggregation,en echelon aggregation,and network aggregation.The morphology,scale,and distribution characteristics of pegmatite dikes and lithium ore bodies are mainly controlled by two phases of structural joint-fracture systems:fold-related joint-fracture systems and near-ring and radial joint-fracture systems related to magmatic doming.The superposition and connection of these two phases of joints and fractures jointly provide transport and storage structures for the formation of granitic pegmatite,controlling the spatial distribution of rare metal deposits and the morphological characteristics of pegmatite dikes.[Conclusions]Through the coupling of tectonics and magmatism in ore control,favorable metallogenic sites have been identified to guide lithium exploration.As a result,one large-scale and one medium-scale lithium deposit have been proven in the Ke'eryin area,and nine prospecting targets for pegmatite-type lithium deposits have been predicted,providing important theoretical basis and exploration direction for subsequent lithium exploration in this region.关键词
伟晶岩型锂矿/构造—岩浆耦合控矿/群带聚集模式/找矿预测/可尔因/四川Key words
pegmatite-type lithium deposits/tectonic-magmatic coupling ore control mechanism/swarm-band aggregation models/prospecting prediction/Ke'eryin/Sichuan Province分类
天文与地球科学引用本文复制引用
段威,刘治成,邹林,唐文春,张伟,韩晓萌,乔江浩,熊观,黄健..四川可尔因锂矿田构造—岩浆耦合控矿作用与找矿预测[J].地质通报,2026,45(7):1246-1261,16.基金项目
深地国家科技重大专项课题《西秦岭甘南—川西北金、稀有金属矿地球化学勘查技术应用示范与增储》(编号:2024ZD1002402)、四川省政府性投资地质勘查项目《四川省马尔康市营林处锂多金属矿普查》(编号:DZ202409)和《四川省马尔康市马纳锂矿普查》(编号:DZ202413) Supported by National Science and Technology Major Project for Deep Earth Exploration(No.2024ZD1002402),the Sichuan Government-Funded Geological Exploration Projects(Nos.DZ202409,DZ202413) （编号:2024ZD1002402）
