摘要
从卡瓦铁矿床和镜铁山铁矿床的成矿地质背景、矿床地质、铁矿石地球化学特征、成矿时代及沉积环境等方面进行对比研究,结合野外地质,认为卡瓦铁矿床无论在地质还是地球化学特征上均与镜铁山铁矿床有明显差异,二者在时空上具有连续性,是两个完全独立的铁建造.地层、构造和地球化学等是卡瓦铁矿床的找矿标志,为北祁连西段沉积变质型铁矿进一步勘查工作提供理论依据.
To investigate the relationship between Kawa iron deposit and Jingtieshan iron deposit, their geological background, deposit geological and geochemical characteristics of ore, mineralization age and depositional environment were compared. Combined with first-hand information on the field, Kava iron deposit and Jingtieshan iore deposit were significantly different in geological or geochemical characteristics. Both had continuity in time and space, and were of two separate iron formations. Three prospecting indicators of stratigraphic, structural and geochemical nature are proposed here, which can provide a theoretical basis for further exploration of the sedimentary-metamorphic iron ore in western stretch of Northern Qilian Mountains.
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
2018年第1期26-31,38,共7页
Journal of Lanzhou University(Natural Sciences)
基金
甘肃省2014年省级矿产资源补偿费地质勘查项目(甘财建[2014]99号)
甘肃省肃南县卡瓦地区矿产地质调查项目(12120113046900)
中央高校基本科研业务费专项资金项目(Lzu-Jbky-2012-128)
兰州大学甘肃省西部矿产资源重点实验室基金项目
关键词
卡瓦铁矿床
镜铁山铁矿床
北祁连西段
对比研究
Kawa iron deposit
Jingtieshan iron deposit
westem stretch of Northern Qilian Mountains
comparative study
