黔西南地区卡林型金矿床就其产状,形态和构造控制可分为断控型和层控两大类型,层控金矿主要有:水银洞,戈塘,泥堡,太平洞等金矿床,此类矿床在矿体形态,控矿构造,赋矿地层等多方面既具有共同性,又具有其各自的特点.本文就滇黔桂地区的卡林型金矿床提出了三种可能的矿源层,分别是:与峨眉山地幔柱活动有关的玄武岩,凝...
And white LED bulbs are starting to appear in the lighting departments of retailers such as the Home Depot. For producers of a critical LED raw material, trimethylgallium (TMG), the changes haven't been so subtle. To stave off shortages, they are planning to add capacity well before they'...
PROBLEM TO BE SOLVED: To change low quality soil such as soft construction generated soil, mud, dredged soil or the like carried out from a construction work field or the like into excellent sandy improved soil by effectively utilizing industrial waste such as the incinerated substances (quick-li...