矿床地质2026，Vol.45Issue(3)：574-592,19.DOI:10.16111/j.0258-7106.2026.03.006
川西甲基卡矿田浅变质岩地球化学特征及与锂超常富集关系研究
Geochemical characterization of shallow metamorphic rocks in western Sichuan Jiajika lithium field and relationship with lithium over-enrichment
摘要
Abstract
The aim of this study is to investigate the key factors of lithium enrichment in the granitic pegmatite-type lithium deposits in the enclosing metamorphic sedimentary rocks of the Jiajika mine field in the Songpan-Ganzi tectonic belt.The geological background,lithological features,and geochemical characteristics of the Jiajika Mine Field were studied in depth by means of literature review,geological survey,rock and mineral analysis,and geochemical tests.It is found that the regional tectonic background,magmatic activity and metamorphism are the key factors affecting lithium enrichment.Specifically,the formation of granitic pegmatite-type lithium deposits and the regional magmatic activities are closely related to the metallogenic tectonic unit of the Songpan-Ganzi tectonic belt;the lithium elements in the surrounding metamorphic sedimentary rocks were enriched during the metamorphic process.This study reveals the key factors of lithium enrichment in the metamorphic sedimentary rocks surrounding the granitic pegmatite-type lithium deposits in the Jiajika field of the Songpan-Ganzi tectonic belt,and provides a theoretical basis for the exploration and development of lithium deposits in this area.关键词
岩石地球化学/围岩变质沉积岩/花岗伟晶岩型锂矿床/松潘-甘孜构造带/甲基卡矿田Key words
rock geochemistry/enclosing metamorphic sedimentary rocks/granitic pegmatite-type lithium deposits/Songpan-Ganzi tectonic belt/Jiajika field分类
天文与地球科学引用本文复制引用
张皓然,代鸿章,刘晓敏,刘善宝,王成辉,文佳豪,高原..川西甲基卡矿田浅变质岩地球化学特征及与锂超常富集关系研究[J].矿床地质,2026,45(3):574-592,19.基金项目
本文得到国家重点研发计划项目"我国西部伟晶岩型锂等稀有金属成矿规律与勘查技术"(编号:2021YFC22901900) （编号:2021YFC22901900）
中国地质科学院深地探测与矿产勘查全国重点实验室基本科研业务费项目"(编号:JKYDM2025106) （编号:JKYDM2025106）
中国地质科学院基本科研业务费专项经费资助"松潘-甘孜锂稀有金属重点成矿带成矿模式研究"(编号:KK2413) （编号:KK2413）
中国地质调查局项目"战略新兴产业矿产地质调查工程"(编号:DD20230034) （编号:DD20230034）
自然资源部新一轮找矿突破战略行动科技支撑项目"松潘-甘孜锂稀有金属矿关键勘查技术与找矿预测模型"(编号:ZK-KJ202412) （编号:ZK-KJ202412）
四川大中赫锂业有限公司项目"加达锂矿优选靶区验证地质研究技术服务"(编号:HE2322) （编号:HE2322）
"四川省马尔康市加达锂矿地质详查(勘探)"(编号:HE2327)联合资助 （勘探）
