【摘 要】
：
1998年青海省地调院区调三室,在进行 J47E01723(瓜拉煤矿)幅、J47E017024(孔家庄)幅1;5万区域地质调查时,于北祁连裂谷洋盆系与中祁连地块接合部位的大坂山南坡断裂带北侧新
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1998年青海省地调院区调三室,在进行 J47E01723(瓜拉煤矿)幅、J47E017024(孔家庄)幅1;5万区域地质调查时,于北祁连裂谷洋盆系与中祁连地块接合部位的大坂山南坡断裂带北侧新发现了硼化铬(Cr_2B)矿物,该矿物产于灰色中粒石英闪长岩中。矿物镜下描述:银白色,很强的金属光泽,强磁性,硬度很高,颗粒表面高低不平,
In 1998, the Geological Survey and Reconstruction Area of Qinghai Province transferred three chambers. During the geological survey of 1: 50,000 zones of J47E01723 (Guala coal mine) and J47E017024 (Kongjiazhuang), in the northern Qilian rift ocean basin and the Central Qilian Newly discovered chromium boride (Cr 2 B) minerals are found on the northern side of the Shannanpo fault belt in the jointing area of the block, which is found in the gray, medium-grained quartz-diorite. Mineral microscopic Description: silver white, strong metallic luster, strong magnetic, high hardness, uneven surface of the particles,
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