Please tell me about the properties of asbestos and the application of asbestos.And the role of asbestos casing.
Asbestos profileMineral name: asbestos (Asbestos or Asbestus)Two deposit types and their segments1. Genetic types of asbestos depositsGenetic types of serpentine asbestos deposits(1) alteration of magnesian ultrabasic rocks1) atmospheric precipitation hydrothermal alteration: controlling the surrounding rock as a part of the pre Sinian ground melt partial melting residual; the meteoric hydrothermal fluid crystallized and grew asbestos fibers in the torsional and compressive fractures. The cotton vein is a combination of longitudinal fiber networks, rich in long fibers, low grade, and large in size. The typical ore deposit in Sichuan, Shaanxi and Lueyang Daan asbestos asbestos mine.2) hydrothermal alteration type: the ore controlling wall rock is the peridotite from the greenstone belt of the early Proterozoic Jiaodong group. Hydrothermal mineralization. The cotton vein is a combination of transverse fibers and parallel veins, with short fiber grade and small size. Typical deposits are Rizhao asbestos mine in Shandong.3) groundwater mixed hydrothermal alteration: the ore controlling surrounding rock is ultramafic rock in ophiolite suite, and groundwater mixed hydrothermal solution is filled with mineralization in tensional fracture. The cotton veins are mainly transverse fibers, reticulate veins and individual veins, with parallel veins and ring veins. The fibers are long and high in grade, and the size of the ore deposits can be large. The typical deposit of Qinghai Mangya asbestos mine.4) from the post magmatic hydrothermal alteration, ore control rock for Ophiolites in ultramafic rocks and ultrabasic rocks after filling a variety of fine cotton produced gas-liquid rupture of veins, vein transverse fiber cotton irregular mesh, and dendritic brush, and parallel veins, augen and ring fiber short, high grade, medium scale deposits up to. Typical deposits are small eight treasures asbestos in Qinghai, Qilian.
3, the distribution of asbestos deposits upwardThe country's 18 provinces, municipalities and autonomous regions have asbestos output, a total of more than 600 mines. Proven reserves are second only to Canada and the Commonwealth of independent states. Chinese asbestos reserves are mainly distributed in the northwest and southwest regions, including Sichuan, Qinghai, Shaanxi provinces, asbestos reserves accounted for 94.14% of total reserves, which accounted for 62% of the northwest, northeast and North China asbestos reserves are small, South, Southern China area few mines. The types of asbestos deposits in China are complete, mainly serpentine asbestos deposits, and less amphibole asbestos deposits. In the serpentine asbestos deposits of magnesian ultrabasic rocks alteration types of asbestos deposits are mainly distributed in Sichuan, Qinghai, Shaanxi, Xinjiang, Gansu and other places, the deposit is large in scale, mainly in Sichuan and new Qinghai, Shimian County Kang mangnai, Shaanxi Da is the main producing areas of China asbestos. Magnesium carbonate alteration type asbestos deposits are mainly distributed in Liaoning, Hebei, Shanxi, Inner Mongolia and other places, mainly in Liaoning and Chaoyang Laiyuan, Hebei state, Shanxi Fangshan etc.. Has a great industrial significance in amphibole asbestos deposits in blue asbestos deposits are mainly distributed in Hubei, Henan Shaanxi, Sichuan area and fill in Hebei Henan area, tremolite asbestos deposit occurs in larger scale deposit in Western Sichuan.
