论文部分内容阅读
一、概况思茅拗陷是指由多个含盐盆地组成的思茅复式向斜,其东止于哀牢山断裂,西截至澜沧江花岗岩。区内在古生代的基底上沉积了一套厚达二万余米的中、新生代红色含盐(钾),含煤建造,其盐类矿产极为丰富。目前已知可能含盐地段有65个,其中大型钾盐矿床一个,钾矿化区三个,卤泉点300余处,石膏矿和矿点也很普遍。思茅拗陷中最重要的钾盐产地是勐野井矿区,属于江城含盐带,面积约10Km~2,盐岩矿体呈巨厚的大透镜体赋存于勐野井组地层中,石盐层NaCl含量为71.67%,分布面积约2.68Km~2。钾盐矿体富集于盐岩矿体中,呈多层薄透镜体夹于石盐层内。钾盐层中
I. Overview Simao depression is composed of a number of salt basins composed of Simao syncline, the east end of the Ailao Mountain fault, west to the Lancang granite. In the area on the basis of the Paleozoic, a set of medium and new Cenozoic red salt (potassium) and coal-bearing coal deposits with a thickness of more than 20,000 meters were deposited on the basement of the Paleozoic. Its salt minerals are extremely rich. It is known that there are 65 salty salt fields, of which, one is a large-scale potash deposit, three are potash-mineralization areas and more than 300 are Halonium springs. Gypsum ore and ore deposits are also common. Simao Depression is the most important potassium salt origin is Meng Yejing mining area, belonging to the Jiangcheng salt zone, an area of about 10Km ~ 2, the salt rock ore body was huge thick lens body occurred in the Meng Yejing formation, the rock salt layer NaCl content of 71.67%, the distribution area of about 2.68Km ~ 2. Potash salt orebodies are enriched in salt rock orebodies, and are sandwiched between layers of thin salt crystals in the rock salt layer. Potassium salt layer