西北地质2017，Vol.50Issue(1)：50-62,13.
北祁连山西段双龙铁矿地质特征及矿床成因探讨
Geology and Genesis of the Shuanglong Iion Deposit in the Western Section ofNorth Qilian Mountains
摘要
Abstract
The Shuanglong iron deposit is located in the Kawa iron ore-concentrated area in the western section of North Qilian Mountains, which is the other important sedimentary-metamorphic iron deposit after the Jingtieshan iron deposit found within the polymetallicmetallogenic belt in the western section of North Qilian Mountains.The Shuanglong iron deposit was occurred in shallow sedimentary clastic sedimentary rocks of Changchengian Huashugou Formation.The orebodies are mostly developed as the stratiform shapes, while their distribution and occurrence were controlled by the ore-bearing strata, and their thickness vary with the ones of wall rocks.The iron ores have fine-grained structure, banded structure, low grade with great range, showing the characteristics of sedimentary-metamorphic iron ore.After discussing the genesis of this deposit, the Shuanglong iron deposit has been classified as the sedimentary-metamorphic iron deposit that related with submarine exhalative process, and the metallogenic model of this deposit has been established.关键词
双龙铁矿床/沉积变质型铁矿/海底喷流沉积/朱龙关裂谷/北祁连西段Key words
Shuanglong iron deposit/sedimentary-metamorphic iron deposit/SEDEX/Zhulongguan rift/the western section of North Qilian Mountains分类
天文与地球科学引用本文复制引用
孔维琼,丁书宏,樊新祥,张照伟,董国祥,赵吉昌,陈晔..北祁连山西段双龙铁矿地质特征及矿床成因探讨[J].西北地质,2017,50(1):50-62,13.基金项目
甘肃省地质勘查基金项目"甘肃省肃南县双龙铁矿普查"项目(甘财建[2014]119号) （甘财建[2014]119号）
