黔北林華井田煤質(zhì)參數(shù)特征及其成煤沉積環(huán)境意義
[Abstract]:Based on the industrial analysis, sulfur content and ash content of coal samples in main coal seam of Lin Hua mine field, the overall coal quality characteristics of Longtan formation in this area are evaluated, and the relationship between sulfur and ash content in coal and coal-forming sedimentary environment is discussed. The results show that the Longtan formation coal in Lin Hua mine field in northern Guizhou has the characteristics of high thermal evolution, diverse types of coal and rock, medium to high ash and sulphur content, and extremely low moisture content. The coal belongs to No. 3 anthracite. The analysis of sulfur morphological data shows that pyrite sulfur in coal has a large proportion of total sulfur, and there is a linear positive correlation between pyrite sulfur content and total sulfur content in coal seam with total sulfur content less than 3.0%. The longitudinal variation rule of sulfur and ash composition parameters in main coal seam can clearly reverse the change of coal swamp microenvironment in Longtan coal mine, and the 13 coal in Lin Hua mine field in northern Guizhou is determined by comprehensive analysis. 15 coal was formed in the olake peat swamp environment, while 4 coal, 5 coal and 9 coal formed in the tidal flat peat swamp environment which was less affected by sea water.
【作者單位】: 中國地質(zhì)調(diào)查局油氣資源調(diào)查中心;貴州省煤層氣頁巖氣工程技術(shù)研究中心;煤炭科學(xué)研究總院;
【基金】:國家科技重大專項(xiàng)資助項(xiàng)目(2016ZX05034) 中國地質(zhì)調(diào)查局資助項(xiàng)目(DD20160181) 貴州省地質(zhì)勘查基金資助項(xiàng)目(2016-03)
【分類號(hào)】:P618.11
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