窑街煤田碳酸盐与突出气体的同位素组成特征

李兆兴; 陶明信; 徐永昌; 陈发源

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窑街煤田碳酸盐与突出气体的同位素组成特征

李兆兴, 陶明信, 徐永昌, 陈发源

文章导航 > 沉积学报 > 1992 > 10(1): 93-100

李兆兴, 陶明信, 徐永昌, 陈发源. 窑街煤田碳酸盐与突出气体的同位素组成特征[J]. 沉积学报, 1992, 10(1): 93-100.

引用本文:

李兆兴, 陶明信, 徐永昌, 陈发源. 窑街煤田碳酸盐与突出气体的同位素组成特征[J]. 沉积学报, 1992, 10(1): 93-100.

Li Zhaoxing, Tao Mingxin, Xu Yongchang, Chen Fayuan. Isotope Compositions of Carbonate and Outburst Gas in Youjie Coalfield[J]. Acta Sedimentologica Sinica, 1992, 10(1): 93-100.

Citation:

Li Zhaoxing, Tao Mingxin, Xu Yongchang, Chen Fayuan. Isotope Compositions of Carbonate and Outburst Gas in Youjie Coalfield[J]. Acta Sedimentologica Sinica, 1992, 10(1): 93-100.

李兆兴, 陶明信, 徐永昌, 陈发源. 窑街煤田碳酸盐与突出气体的同位素组成特征[J]. 沉积学报, 1992, 10(1): 93-100.

引用本文:

李兆兴, 陶明信, 徐永昌, 陈发源. 窑街煤田碳酸盐与突出气体的同位素组成特征[J]. 沉积学报, 1992, 10(1): 93-100.

Li Zhaoxing, Tao Mingxin, Xu Yongchang, Chen Fayuan. Isotope Compositions of Carbonate and Outburst Gas in Youjie Coalfield[J]. Acta Sedimentologica Sinica, 1992, 10(1): 93-100.

Citation:

Li Zhaoxing, Tao Mingxin, Xu Yongchang, Chen Fayuan. Isotope Compositions of Carbonate and Outburst Gas in Youjie Coalfield[J]. Acta Sedimentologica Sinica, 1992, 10(1): 93-100.

窑街煤田碳酸盐与突出气体的同位素组成特征

中国科学院兰州地质研究所气体地球化学国家重点实验室

基金项目: 气体地球化学国家重点实验室基金;国家自然科学基金(青年)资助项目

详细信息

作者简介:
李兆兴,男,32岁,硕士,地球化学.

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文章访问数: 777
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Isotope Compositions of Carbonate and Outburst Gas in Youjie Coalfield

National Key Laboratory of Gasgeochemistry, Lanzhou Institute of Geology, China Academy of Sciences;

摘要

摘要: 为探讨窑街煤矿突出CO₂气的成因与来源,对煤田中方解石、菱铁矿和水中溶解HCO₃^-及沉淀碳酸盐的碳、氧同位素组成进行测试研究,并对“5.24”突出点涌出气的¹³C_CO2值和³He/⁴He值进行了测定.结果表明,煤田中CO₂气的碳同位素组成发生了复杂的分馏效应而和各种可能母质的碳同位素组成难以进行简单的对比;突出点气体的³He/⁴e值表明其为典型的壳源气;煤田中烧变岩可能为突出气的气源.
- CO₂突出 /
- 碳同位素 /
- 氧同位素 /
- 氦同位素 /
- 窑街煤田
Abstract: The extraordinary outburst of CO₂ gas, coal and rocks happened on May 24, 1978 in aojie oalfield. The isotope compositions of the outburst gas and the carbonates relating to CO₂ gas. The results arc as follows: The δ¹³C values of the CO₂ gas are -0.55-4.81‰; and that of ealcitc veins are -15.88-+5.94‰ which are tending to be heavier with the. decrease of depth. The δ¹³O alues PDB. the same below) of the calcite distributed from-8.07 to-20.4‰; The values of δ¹³C and δ¹³ O of parry iron are-1.96-+2.66‰ and -8.55-11.97‰ respectively; The average δ¹³C value of HCO₃ in the barnt rock water is 2.325‰, and based on it, the calculated δ¹³C value of the primary CO₂ dissolved a the wanter is about -6‰, but that of free CO₂ released the solution is about -7‰; The δ¹³C can onate precipi-laied fron, the burnt rock water are 3.89-4.63‰, heavier than those of the HCO₃ dissolved in water. The above results show that there are isotope fractionation of carbon in the processes of the disselving and degassing of CO₂ gas and the precipitating of the carbonate. As the variation of the δ¹³C values of the CO, in the coal measures of the field is broad (The lightest is -43.44‰, it is difficult to simply of CO gas with the carberrates in their isolopic compositions. The He/4 He value of the gas in the outburst spot is (3.8±0.5)×108, showing that the outburst gas is a sypteal crust source gas. So it is necessary to strengthen the studying in geology and geochemistry er the eoalfitld ill itself for searching into the concrete source of the outburst gas.

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参考文献(1)

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(1) 徐永昌，沈平，陶明信，孙明良，1990，科学通报，12期，932-935页.

(2) 徐永昌，沈平，申歧祥，徐胜，1986，研究年报，86-105页，甘肃科学技术出版社.

(3) 唐修义，杨宜春，刘冬梅，沈平，申岐祥，1987，研究年报，242-252页.甘肃科学技术出版社.

(4) 魏菊英，王关玉，1988，同位素地球化学，97-111页.地质出版社.

(5) Gould K. W. and Smith J. W., 1979, the genesis and isotopic composition of carbonates associated with some Permian Australian Coals. Chem.Geol. 24, p.137-150

(6) Weber J.N., Williams F.G.and Keith, M.L., 1964, Paleoenvironmental significance of carbon isotopic composition of siderite nodules in some shales of Penn-sylvanian age.J.Sediment.Petrol., 34, p.814-818.

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窑街煤田碳酸盐与突出气体的同位素组成特征

中国科学院兰州地质研究所气体地球化学国家重点实验室

基金项目: 气体地球化学国家重点实验室基金;国家自然科学基金(青年)资助项目

作者简介:
李兆兴,男,32岁,硕士,地球化学.

收稿日期: 1991-04-01
刊出日期: 1992-03-10

关键词:

CO₂突出 /

摘要: 为探讨窑街煤矿突出CO₂气的成因与来源,对煤田中方解石、菱铁矿和水中溶解HCO₃^-及沉淀碳酸盐的碳、氧同位素组成进行测试研究,并对“5.24”突出点涌出气的¹³C_CO2值和³He/⁴He值进行了测定.结果表明,煤田中CO₂气的碳同位素组成发生了复杂的分馏效应而和各种可能母质的碳同位素组成难以进行简单的对比;突出点气体的³He/⁴e值表明其为典型的壳源气;煤田中烧变岩可能为突出气的气源.

English Abstract

Isotope Compositions of Carbonate and Outburst Gas in Youjie Coalfield

National Key Laboratory of Gasgeochemistry, Lanzhou Institute of Geology, China Academy of Sciences;

Received Date: 1991-04-01
Publish Date: 1992-03-10

Abstract: The extraordinary outburst of CO₂ gas, coal and rocks happened on May 24, 1978 in aojie oalfield. The isotope compositions of the outburst gas and the carbonates relating to CO₂ gas. The results arc as follows: The δ¹³C values of the CO₂ gas are -0.55-4.81‰; and that of ealcitc veins are -15.88-+5.94‰ which are tending to be heavier with the. decrease of depth. The δ¹³O alues PDB. the same below) of the calcite distributed from-8.07 to-20.4‰; The values of δ¹³C and δ¹³ O of parry iron are-1.96-+2.66‰ and -8.55-11.97‰ respectively; The average δ¹³C value of HCO₃ in the barnt rock water is 2.325‰, and based on it, the calculated δ¹³C value of the primary CO₂ dissolved a the wanter is about -6‰, but that of free CO₂ released the solution is about -7‰; The δ¹³C can onate precipi-laied fron, the burnt rock water are 3.89-4.63‰, heavier than those of the HCO₃ dissolved in water. The above results show that there are isotope fractionation of carbon in the processes of the disselving and degassing of CO₂ gas and the precipitating of the carbonate. As the variation of the δ¹³C values of the CO, in the coal measures of the field is broad (The lightest is -43.44‰, it is difficult to simply of CO gas with the carberrates in their isolopic compositions. The He/4 He value of the gas in the outburst spot is (3.8±0.5)×108, showing that the outburst gas is a sypteal crust source gas. So it is necessary to strengthen the studying in geology and geochemistry er the eoalfitld ill itself for searching into the concrete source of the outburst gas.

李兆兴, 陶明信, 徐永昌, 陈发源. 窑街煤田碳酸盐与突出气体的同位素组成特征[J]. 沉积学报, 1992, 10(1): 93-100.

引用本文:

李兆兴, 陶明信, 徐永昌, 陈发源. 窑街煤田碳酸盐与突出气体的同位素组成特征[J]. 沉积学报, 1992, 10(1): 93-100.

Li Zhaoxing, Tao Mingxin, Xu Yongchang, Chen Fayuan. Isotope Compositions of Carbonate and Outburst Gas in Youjie Coalfield[J]. Acta Sedimentologica Sinica, 1992, 10(1): 93-100.

Citation:

Li Zhaoxing, Tao Mingxin, Xu Yongchang, Chen Fayuan. Isotope Compositions of Carbonate and Outburst Gas in Youjie Coalfield[J]. Acta Sedimentologica Sinica, 1992, 10(1): 93-100.

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窑街煤田碳酸盐与突出气体的同位素组成特征

作者简介:
李兆兴,男,32岁,硕士,地球化学.

计量

Isotope Compositions of Carbonate and Outburst Gas in Youjie Coalfield

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目录

窑街煤田碳酸盐与突出气体的同位素组成特征

中国科学院兰州地质研究所气体地球化学国家重点实验室

作者简介:
李兆兴,男,32岁,硕士,地球化学.

English Abstract

Isotope Compositions of Carbonate and Outburst Gas in Youjie Coalfield

National Key Laboratory of Gasgeochemistry, Lanzhou Institute of Geology, China Academy of Sciences;

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窑街煤田碳酸盐与突出气体的同位素组成特征

作者简介: 李兆兴,男,32岁,硕士,地球化学.

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Isotope Compositions of Carbonate and Outburst Gas in Youjie Coalfield

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窑街煤田碳酸盐与突出气体的同位素组成特征

中国科学院兰州地质研究所气体地球化学国家重点实验室

作者简介: 李兆兴,男,32岁,硕士,地球化学.

English Abstract

Isotope Compositions of Carbonate and Outburst Gas in Youjie Coalfield

National Key Laboratory of Gasgeochemistry, Lanzhou Institute of Geology, China Academy of Sciences;

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目录

友情链接

期刊在线

联系我们

作者简介:
李兆兴,男,32岁,硕士,地球化学.

作者简介:
李兆兴,男,32岁,硕士,地球化学.