淮北煤田祁东煤矿煤和瓦斯中稳定碳同位素分布特征及其地质成因
发布时间：2019-06-21 13:34
【摘要】：对淮北煤田祁东煤矿6个煤层的24个煤样和12个气样的稳定有机碳同位素分析,分别研究了煤和瓦斯中碳同位素的分布特征和变化趋势,为不同煤层及瓦斯源分析提供理论依据。研究表明:祁东煤矿煤的δ13C为-25.11‰~-22.76‰,6-1煤层至9煤层碳同位素均值呈波动变化,可能受当时成煤时期沉积环境的影响;瓦斯的δ~(13)C_1为-63.65‰~-52.51‰,表现出次生生物成因气的变化特征,二氧化碳碳同位素特征(-22.61‰~-17.96‰)表明其均是煤热解而来。
[Abstract]:The stable organic carbon isotopes of 24 coal samples and 12 gas samples from 6 coal seams in Qidong Coal Mine of Huaibei Coalfield are analyzed. The distribution characteristics and changing trends of carbon isotopes in coal and gas are studied respectively, which provides a theoretical basis for the analysis of different coal seams and gas sources. The results show that the 未 ~ (13) C of Qidong coal mine is-25.11 鈥，
本文编号：2504116
[Abstract]:The stable organic carbon isotopes of 24 coal samples and 12 gas samples from 6 coal seams in Qidong Coal Mine of Huaibei Coalfield are analyzed. The distribution characteristics and changing trends of carbon isotopes in coal and gas are studied respectively, which provides a theoretical basis for the analysis of different coal seams and gas sources. The results show that the 未 ~ (13) C of Qidong coal mine is-25.11 鈥，
本文编号：2504116
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