西山矿区煤中有机碳同位素特征与其成熟度之间的联系
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摘要
分析了西山矿区屯兰矿7个煤层共19个煤样品的有机碳同位素丰度,研究了各煤层之间碳同位素值(δ~(13)C_(org)值)的分布特征和变化趋势。研究成果表明:屯兰煤中δ~(13)C_(org)值的变化范围在-25.6‰～-23.3‰之间,平均值为-24.3‰;自下而上由9煤至02煤的δ13C值呈现出总体偏正的趋势,仅在7煤发生了偏负现象,煤中δ~(13)C_(org)的增大可能是受到二叠纪华北地区温度上升的影响;随着成熟度增加,不同煤层煤的δ~(13)C_(org)-Rmax相关性曲线总体上呈现出一定的正相关关系;采用多项式回归函数模型确定了δ~(13)C_(org)-Rmax之间的关系。
This paper analyzes the organic carbon isotope abundance of 19 coal samples from 7 coal seams in Tunlan coalmine,Xishan coalfield, and studies the distribution characteristics and changing trend of carbon isotope value(δ~(13)C_(org)) among various coal seams. The research results show that δ~(13)C_(org)values in Tunlan coal range from-25.6‰ to-23.3‰, with an average value of-24.3‰. The δ13 C values of 9 coal to 02 coal(from bottom to top) showed a generally positive trend, with only 7 coal showing a negative trend. The increase of δ~(13)C_(org)in coal may be influenced by the temperature rise in the Permian North China region. With the increase of maturity, the δ~(13)C_(org)-Rmaxcorrelation curves of different coal seams show a certain positive correlation. The polynomial regression function model was used to determine the relationship between δ~(13)C_(org)-Rmax.
This paper analyzes the organic carbon isotope abundance of 19 coal samples from 7 coal seams in Tunlan coalmine,Xishan coalfield, and studies the distribution characteristics and changing trend of carbon isotope value(δ~(13)C_(org)) among various coal seams. The research results show that δ~(13)C_(org)values in Tunlan coal range from-25.6‰ to-23.3‰, with an average value of-24.3‰. The δ13 C values of 9 coal to 02 coal(from bottom to top) showed a generally positive trend, with only 7 coal showing a negative trend. The increase of δ~(13)C_(org)in coal may be influenced by the temperature rise in the Permian North China region. With the increase of maturity, the δ~(13)C_(org)-Rmaxcorrelation curves of different coal seams show a certain positive correlation. The polynomial regression function model was used to determine the relationship between δ~(13)C_(org)-Rmax.
引文
[1]刘卫国,宁有丰,安芷生,等.黄土高原现代土壤和古土壤有机碳同位素对植被的响应[J].中国科学:D辑,2002,32(10):830-836.
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[10]王伟,陈孝政,刘欣春,等.海相碳酸盐岩碳同位素地层学研究中存在的问题及建议-以二叠系研究为例[J].地层学杂志,2011,35(3):305-320.
[11]Zhang H, Shen G L, He Z L. A carbon isotopic stratigraphic pattern of the Late Palaeozoic coals in the North China Platform and its palaeoclimatic implications[J]. Acta Geologica Sinica(English Edition), 1999,73(1):111-119.
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[13]孙晓辉,陈健,吴盾,等.淮南煤田张集煤矿煤层中稳定有机碳同位素分布特征[J].中国煤炭地质,2013,25(4):7-17.
[14]鲁静,邵龙义,王占刚,等.柴北缘侏罗纪煤层有机碳同位素组成与古气候[J].中国矿业大学学报,2014,43(4):612-618.
[15]陈旭,阮亦萍,A J布科.中国古生代气候演变[M].北京:科学出版社,2001.
[16]Lücke A, Helle G, Schleser G H, et al.Environmental history of the German Lower Rhine Embayment during the Middle Miocene as reflected by carbon isotopes in brown coal[J]. Palaeogeography Palaeoclimatology Palaeoecology, 1999, 154(4):339-352.
[17]Bechtel A,Gruber W,Sachsenhofer R F, et al.Depositional environment of the Late Miocene Hausruck lignite(Alpine Foreland Basin):insights from petrography, organic geochemistry, and stable carbon isotopes[J]. International Journal of Coal Geology, 2003, 53(3):153-180.
[18]Tuo J C, Wang X B, Chen J F,et al.Aliphatic and diterpenoid hydrocarbons and their individual carbon isotope compositions in coals from the Liaohe Basin,China[J]. Organic Geochemistry,2003, 34(12):1615.
[19]Schwarzbauer J, Littke R, Meier R,et al.Stable carbon isotope ratios of aliphatic biomarkers in Late Paleozoic coals[J]. International Journal of Coal Geology, 2013,107(107):127-140.
[20]Cooper J, Crelling J, Rimmer S M, et al.Coal metamorphism by igneous intrusion in the Raton Basin, CO and NM:Implications for generation of volatiles[J].International Journal of Coal Geology, 2007, 71(1):15-27.
[2]杨桂芳,黄俊华,谢树成,等.天目山泥炭有机碳同位素特征及其古环境意义[J].地球学报,2008,29(6):778-782.
[3]于贵瑞,王绍强,陈泮勤,等.碳同位素技术在土壤碳循环研究中的应用[J].地球科学进展,2005,20(5):568-577.
[4]曹建廷,王苏民,沈吉,等.近千年来内蒙古岱海气候环境演变的湖泊沉积记录[J].地理科学,2000,20(5):391-396.
[5]刘禹,马利民,蔡秋芳,等.采用树轮稳定碳同位素重建贺兰山1890年以来夏季(6-8月)气温[J].中国科学:D辑,2002,32(8):667-674.
[6]曹长群,王伟,金玉.浙江煤山二叠-三叠系界线附近碳同位素变化[J].科学通报,2002,47(4):302-306.
[7]南郡亚,刘育燕.浙江煤山二叠-三叠系界线剖面有机和无机碳同位素变化与古环境[J].地球化学,2004,33(1):9-18.
[8]黄俊华,罗根明,白晓,等.浙江煤山P-T之交碳同位素对有机碳埋藏的指示意义[J].地球科学,2007,32(6):767-773.
[9]郄文昆,张雄华,杜远生,等.华南地区下石炭亚系碳同位素记录及对晚古生代冰期的响应[J].中国科学:地球科学,2010,40(11):1533-1542.
[10]王伟,陈孝政,刘欣春,等.海相碳酸盐岩碳同位素地层学研究中存在的问题及建议-以二叠系研究为例[J].地层学杂志,2011,35(3):305-320.
[11]Zhang H, Shen G L, He Z L. A carbon isotopic stratigraphic pattern of the Late Palaeozoic coals in the North China Platform and its palaeoclimatic implications[J]. Acta Geologica Sinica(English Edition), 1999,73(1):111-119.
[12]汪浩.滇东、黔西晚二叠世煤的沉积学特征及古环境意义[D].北京:中国矿业大学(北京),2011.
[13]孙晓辉,陈健,吴盾,等.淮南煤田张集煤矿煤层中稳定有机碳同位素分布特征[J].中国煤炭地质,2013,25(4):7-17.
[14]鲁静,邵龙义,王占刚,等.柴北缘侏罗纪煤层有机碳同位素组成与古气候[J].中国矿业大学学报,2014,43(4):612-618.
[15]陈旭,阮亦萍,A J布科.中国古生代气候演变[M].北京:科学出版社,2001.
[16]Lücke A, Helle G, Schleser G H, et al.Environmental history of the German Lower Rhine Embayment during the Middle Miocene as reflected by carbon isotopes in brown coal[J]. Palaeogeography Palaeoclimatology Palaeoecology, 1999, 154(4):339-352.
[17]Bechtel A,Gruber W,Sachsenhofer R F, et al.Depositional environment of the Late Miocene Hausruck lignite(Alpine Foreland Basin):insights from petrography, organic geochemistry, and stable carbon isotopes[J]. International Journal of Coal Geology, 2003, 53(3):153-180.
[18]Tuo J C, Wang X B, Chen J F,et al.Aliphatic and diterpenoid hydrocarbons and their individual carbon isotope compositions in coals from the Liaohe Basin,China[J]. Organic Geochemistry,2003, 34(12):1615.
[19]Schwarzbauer J, Littke R, Meier R,et al.Stable carbon isotope ratios of aliphatic biomarkers in Late Paleozoic coals[J]. International Journal of Coal Geology, 2013,107(107):127-140.
[20]Cooper J, Crelling J, Rimmer S M, et al.Coal metamorphism by igneous intrusion in the Raton Basin, CO and NM:Implications for generation of volatiles[J].International Journal of Coal Geology, 2007, 71(1):15-27.