论文部分内容阅读
云母是天然的矿产物,而且是分布很广的造岩矿物,约占地壳总量的3.8%。主要产于酸性和中性侵入岩中,为岩浆的晚期产物,易见于钨钼等高温和中温热液矿床中,在片麻岩、云母片岩中分布亦甚广泛。我国云母资源丰富,分布于四川、内蒙古、辽宁、江苏和湖北等20个省、自治区的广大国土上。占世界的第二位。其中四川省丹巴云母矿,位于大渡河
Mica is a natural mineral product, and it is a widely distributed rock-forming mineral, accounting for about 3.8% of the total earth’s crust. It is mainly produced in acidic and neutral intrusive rocks and is an advanced product of magma. It is easily found in high-temperature and medium-temperature hydrothermal deposits such as tungsten and molybdenum, and is widely distributed in gneiss and mica schist. China’s mica resources are abundant and are distributed in the vast land of 20 provinces and autonomous regions such as Sichuan, Inner Mongolia, Liaoning, Jiangsu, and Hubei. The second largest in the world. The Danba Mica Mine in Sichuan Province is located in Dadu River