Research on coal metamorphic patterns in main minable coal-beds of longdong mine field in Xingtai

Abstract

The coal-bearing strata of Longdong mine field in Xingtai is the Carboniferous-Permian. The No.8 coal seam is located in the Taiyuan formation and is the main minable coal-bed. The coal is mainly gas-fat coal accompanied with coking coal, lean coal and anthracite. The results of the macroanalysis and maceral quantitative analysis on the main minable coal-bed show that the degree of coal metamorphism takes the old town as the center and is distributed concentrically outward and the anthracite and lean coal are distributed nearby the old town, and the coal gradually becomes coking coal, gas-fat coal and gas coal further outwards. The degree of coal metamorphism was affected by regional metamorphism, and the coal seams which are close to the old town stack the regional magmatic thermal metamorphism. The conclusions of the research offer a scientific foundation to exploit the coal resource in this area?

Geochemistry of hydrothermally altered rocks with gold mineralization hosted in alkaline complex in Hongshan area, Taihang Orogen, North China

“…The Handan-Xingtai metallogenetic province is an important deposit concentration area in China, which is located in the south Taihang Orogen, North China Craton [Figure 1 (Guan et al, 2013) and of skarn type iron deposits that are related to Mesozoic magmatism. The latter is the famous "Handan-Xingtai type" iron deposit.…”