Study of Lower Tertiary Organic Geochemistry and Their Sedimentary Environment in Wuyang and Xiangcheng Saline Sag, Henan,China

ZHAO Quan-min; YANG Dao-qing; JIANG Ji-gang; PENG Jiang; XU Shi-zhong

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Article Navigation > Acta Sedimentologica Sinica > 2003 > 21(2): 334-339

ZHAO Quan-min, YANG Dao-qing, JIANG Ji-gang, PENG Jiang, XU Shi-zhong. Study of Lower Tertiary Organic Geochemistry and Their Sedimentary Environment in Wuyang and Xiangcheng Saline Sag, Henan,China[J]. Acta Sedimentologica Sinica, 2003, 21(2): 334-339.

Citation:

Study of Lower Tertiary Organic Geochemistry and Their Sedimentary Environment in Wuyang and Xiangcheng Saline Sag, Henan,China

1.
China University of Geoscience,Wuhan 430074;
2.
Henan Petroleum Explore Bureau, Nanyang Henan 473132;
3.
Jianghan Petroleum Administration, Qiangjiang Hubei 433124

Received Date: 2001-12-09
Rev Recd Date: 2002-03-08
Publish Date: 2003-06-10

Abstract

In lower tertiary,There are a suit of saline lacustrine sediments in Wuyang and Xiangcheng subdepression. A clear correlation exist between sedimentary environment and organic geochemistry in studying area. The organic matter content in salt water-saline lacustrine sediments is the highest and the abundance in the front of delta and fan-delta higher while the content in the plain lower. In hydrocarbon source rocks, shale and oil shale are characterized by the high content of organic matter while gypseous and salt mudstone by the low , between them are dolomitic and carbonaceous mudstone and muddy dolomite and mudstone. The organic matter types are dominated by Ⅱ₁ and secondly by Ⅰ.Also few Ⅱ₂ exist. Generally, Ⅰand Ⅱ 1 organic matter exist in saline lake while Ⅱ₂ and Ⅲ in the front and plain of delta and fan delta respectively. Biomarker compounds show that the source rocks are deposited in the high salinity and reducing to strong reducing environment. The n-alkanes of the source rock display a bimodal carbon number distribution with an odd-over-even predominance (OEP1). The content of pristine and gammacerane is high and the ratio of pristine/phytane is 0.04～0.72while the phytane/C 18 n-alkane greater than 4. The β-carrot alkane, hopene , hopanes and thionic aromatic hydrocarbons extend widely and the ratio of Ts/Tm is greater than unity. Dehydroxyltocopherols is widely spread with the 5 configurations of δ, 6-methyl-MTTC, β, γ and α. The hemi-saline water and saline facies can be distinguished availably by the triangle chart of Pr/Ph、Pr/nC₁₇ and Ph/nC₁₈ value.
- Wuyang and Xiangcheng Sag,
- saline lacustrine,
- lower Tertiary,
- geochemistry,
- sedimentary environment

References

[1]	傅家谟,盛国英,许家友等.应用生物标志化合物参数判识古沉积环境[J].地球化学,1991,1:1～12[Fu Jiamo,Sheng Guoying,Xu Jiayou et al. Application of biological markers in the assessment of paleoenvironments of Chinese non-marine sediments[J]. Organic Geochemistry,1990,16(4～6) :769～779]
[2]	孙镇诚,杨藩等.中国新生代咸化湖泊沉积环境与油气生成[M].北京:石油工业出版社,1997.340～365[Sun Zhencheng,Yang Fan,et al. Depositional environment and petroleum forming from Cenozoic saline lakes[M]. Beijing: Petroleum Industry Press, 1997. 340～365]
[3]	Meyers P A and Benson L V. Sedimentary biomarker and isotopic indicators of the paleoclimatic history of the Walker Lake basin, western Nevada[J]. Organic Geochemistry, 1988,13: 807～ 813
[4]	梅博文,刘希江.我国原油中异戊间二烯烃的分布及其与地质环境的关系[J].石油与天然气地质,1980,1(2):99～115[Mei Bowen and Liu Xijiang. The distribution of isoprenoid alkanes in China s crude oil and its relation with the geologic environment[J]. Oil & Gas Geology,1980,1(2) :99～115]
[5]	Moldowan J M, et al. Relationship between petroleum composition and depositional environment of petroleum source rocks[J]. AAPG Bull,1985,69(8) :1 255～1 288
[6]	王铁冠等.生物标志物地球化学研究[M].武汉:中国地质大学出版社,1990 [Wang Tieguan, et al. Approach to biomarker geochemistry [M]. Wuhan:China University of Geoscience Press, 1990]
[7]	黄第藩,李晋超.利用气相色谱资料探讨几种成油生源构成[J].石油与天然气地质,1982,3(3):251～259[HuangDifan and Li Jinchao.A study of the structures of biogenetic substsnce in disseninated hydrocarbons by gas chromatograms[J]. Oil & Gas Geology, 1982,3(3):251～259]
[8]	傅家谟,盛国英,江继纲.膏盐沉积盆地形成的未成熟石油[J].石油与天然气地质,1985,6(2):150～158[Fu Jiamo,Sheng Guoying and Jiang Jigang. Immature oil originated from a saline deposition bearing basin[J] .Oil & Gas Geology, 1985,6(2): 150～158]
[9]	妥进才,邵宏舜,黄杏珍.盐湖相生油岩中某些地球化学参与沉积环境的关系[J].沉积学报,1994,12(3):114～119[Tuo Jincai,Shao Hongshong and Huang Xingzhen. The relationship between some geochemistry parameters and environment in saline facies [J]. Acta Sedimentologic Sinica, 1994,12(3): 114～ 119 ]
[10]	Powell T, Mckirdy D M. Relationship between ratio of pristane to phytane, crude oil composition and geological environments in Australia [J]. Nature, 1973,243:37～39
[11]	Brassell S C, Wardroper A M, Thomson J D, et al. Specific acyslic isoptenoids as biological markers of methanogenic bacteia in marine sediments[J]. Nature, 1981,290: 693～ 696
[12]	Meyers P A and Ishiwatari R. Lacustrine organic geochemistry-An overview of indicators of organic matter sources and diagenesis in lake sediments[J]. Organic Geochemistry,1993,20:867～900
[13]	菲尔普R P.化石燃料生物标志物-应用与谱图[M].傅家谟,盛国英译.北京:科学出版社,1987.12～15[Philp R P.Fossil fuel biomarkers applications and spectra[M]. Translated by Fu Jiamo & Sheng Guoying. Beijing: Science Press, 1987]
[14]	Mackenzie A S,Brassell S C ,Eglinton G. and Maxwell J R. Chenmical foesils:The geological fate of steroids[J]. Science, 1982,217: 491～504
[15]	Huang,W-Y.Meinschein W G. Sterols in sediments from Baffin Bay,Texas[J]. Geoch-micaet. Cosmochimica. Acta, 1978,42(9): 1 391 ～1 396
[16]	姜乃煌,黄第藩,宋俘庆等.不同沉积环境地层中的芳烃分布特征[J].石油学报,1994,15(3):43～54[Jiang Naihuang,Huang Difan,Song Fuqing, et al. Distribution characteroistics of aromatics in formations under different sedimentary environments [J]. Acta Petroloei Sinica, 1994,15(3) :43～ 54]
[17]	Sinninghe Damste J S, et al. The occurrence and identification of series of organic surfer compounds in oils and sediment extracts I. A study of Rozel point oil (U. S. A. ) [J]. Geochimica et Cosnochimica Acta, 1987,51:2 369～2 391
[18]	张立平,黄第藩,廖志勤.伽玛蜡烷-水体分层的地球化学标志[J].沉积学报,1999,17(1):136～140[Zhang Liping,Huang Difan and Liao Zhiqin. Gammacerane-Geochemical indicator of water column stratification[J]. Acta Sedimentologic Sinica, 1999,17 (1): 136 ～ 140 ]

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Study of Lower Tertiary Organic Geochemistry and Their Sedimentary Environment in Wuyang and Xiangcheng Saline Sag, Henan,China

1. China University of Geoscience,Wuhan 430074;

2. Henan Petroleum Explore Bureau, Nanyang Henan 473132;

3. Jianghan Petroleum Administration, Qiangjiang Hubei 433124

Received Date: 2001-12-09

Rev Recd Date: 2002-03-08

Publish Date: 2003-06-10

Key words:

Abstract: In lower tertiary,There are a suit of saline lacustrine sediments in Wuyang and Xiangcheng subdepression. A clear correlation exist between sedimentary environment and organic geochemistry in studying area. The organic matter content in salt water-saline lacustrine sediments is the highest and the abundance in the front of delta and fan-delta higher while the content in the plain lower. In hydrocarbon source rocks, shale and oil shale are characterized by the high content of organic matter while gypseous and salt mudstone by the low , between them are dolomitic and carbonaceous mudstone and muddy dolomite and mudstone. The organic matter types are dominated by Ⅱ₁ and secondly by Ⅰ.Also few Ⅱ₂ exist. Generally, Ⅰand Ⅱ 1 organic matter exist in saline lake while Ⅱ₂ and Ⅲ in the front and plain of delta and fan delta respectively. Biomarker compounds show that the source rocks are deposited in the high salinity and reducing to strong reducing environment. The n-alkanes of the source rock display a bimodal carbon number distribution with an odd-over-even predominance (OEP1). The content of pristine and gammacerane is high and the ratio of pristine/phytane is 0.04～0.72while the phytane/C 18 n-alkane greater than 4. The β-carrot alkane, hopene , hopanes and thionic aromatic hydrocarbons extend widely and the ratio of Ts/Tm is greater than unity. Dehydroxyltocopherols is widely spread with the 5 configurations of δ, 6-methyl-MTTC, β, γ and α. The hemi-saline water and saline facies can be distinguished availably by the triangle chart of Pr/Ph、Pr/nC₁₇ and Ph/nC₁₈ value.

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Reference (18)

[1]	傅家谟,盛国英,许家友等.应用生物标志化合物参数判识古沉积环境[J].地球化学,1991,1:1～12[Fu Jiamo,Sheng Guoying,Xu Jiayou et al. Application of biological markers in the assessment of paleoenvironments of Chinese non-marine sediments[J]. Organic Geochemistry,1990,16(4～6) :769～779]
[2]	孙镇诚,杨藩等.中国新生代咸化湖泊沉积环境与油气生成[M].北京:石油工业出版社,1997.340～365[Sun Zhencheng,Yang Fan,et al. Depositional environment and petroleum forming from Cenozoic saline lakes[M]. Beijing: Petroleum Industry Press, 1997. 340～365]
[3]	Meyers P A and Benson L V. Sedimentary biomarker and isotopic indicators of the paleoclimatic history of the Walker Lake basin, western Nevada[J]. Organic Geochemistry, 1988,13: 807～ 813
[4]	梅博文,刘希江.我国原油中异戊间二烯烃的分布及其与地质环境的关系[J].石油与天然气地质,1980,1(2):99～115[Mei Bowen and Liu Xijiang. The distribution of isoprenoid alkanes in China s crude oil and its relation with the geologic environment[J]. Oil & Gas Geology,1980,1(2) :99～115]
[5]	Moldowan J M, et al. Relationship between petroleum composition and depositional environment of petroleum source rocks[J]. AAPG Bull,1985,69(8) :1 255～1 288
[6]	王铁冠等.生物标志物地球化学研究[M].武汉:中国地质大学出版社,1990 [Wang Tieguan, et al. Approach to biomarker geochemistry [M]. Wuhan:China University of Geoscience Press, 1990]
[7]	黄第藩,李晋超.利用气相色谱资料探讨几种成油生源构成[J].石油与天然气地质,1982,3(3):251～259[HuangDifan and Li Jinchao.A study of the structures of biogenetic substsnce in disseninated hydrocarbons by gas chromatograms[J]. Oil & Gas Geology, 1982,3(3):251～259]
[8]	傅家谟,盛国英,江继纲.膏盐沉积盆地形成的未成熟石油[J].石油与天然气地质,1985,6(2):150～158[Fu Jiamo,Sheng Guoying and Jiang Jigang. Immature oil originated from a saline deposition bearing basin[J] .Oil & Gas Geology, 1985,6(2): 150～158]
[9]	妥进才,邵宏舜,黄杏珍.盐湖相生油岩中某些地球化学参与沉积环境的关系[J].沉积学报,1994,12(3):114～119[Tuo Jincai,Shao Hongshong and Huang Xingzhen. The relationship between some geochemistry parameters and environment in saline facies [J]. Acta Sedimentologic Sinica, 1994,12(3): 114～ 119 ]
[10]	Powell T, Mckirdy D M. Relationship between ratio of pristane to phytane, crude oil composition and geological environments in Australia [J]. Nature, 1973,243:37～39
[11]	Brassell S C, Wardroper A M, Thomson J D, et al. Specific acyslic isoptenoids as biological markers of methanogenic bacteia in marine sediments[J]. Nature, 1981,290: 693～ 696
[12]	Meyers P A and Ishiwatari R. Lacustrine organic geochemistry-An overview of indicators of organic matter sources and diagenesis in lake sediments[J]. Organic Geochemistry,1993,20:867～900
[13]	菲尔普R P.化石燃料生物标志物-应用与谱图[M].傅家谟,盛国英译.北京:科学出版社,1987.12～15[Philp R P.Fossil fuel biomarkers applications and spectra[M]. Translated by Fu Jiamo & Sheng Guoying. Beijing: Science Press, 1987]
[14]	Mackenzie A S,Brassell S C ,Eglinton G. and Maxwell J R. Chenmical foesils:The geological fate of steroids[J]. Science, 1982,217: 491～504
[15]	Huang,W-Y.Meinschein W G. Sterols in sediments from Baffin Bay,Texas[J]. Geoch-micaet. Cosmochimica. Acta, 1978,42(9): 1 391 ～1 396
[16]	姜乃煌,黄第藩,宋俘庆等.不同沉积环境地层中的芳烃分布特征[J].石油学报,1994,15(3):43～54[Jiang Naihuang,Huang Difan,Song Fuqing, et al. Distribution characteroistics of aromatics in formations under different sedimentary environments [J]. Acta Petroloei Sinica, 1994,15(3) :43～ 54]
[17]	Sinninghe Damste J S, et al. The occurrence and identification of series of organic surfer compounds in oils and sediment extracts I. A study of Rozel point oil (U. S. A. ) [J]. Geochimica et Cosnochimica Acta, 1987,51:2 369～2 391
[18]	张立平,黄第藩,廖志勤.伽玛蜡烷-水体分层的地球化学标志[J].沉积学报,1999,17(1):136～140[Zhang Liping,Huang Difan and Liao Zhiqin. Gammacerane-Geochemical indicator of water column stratification[J]. Acta Sedimentologic Sinica, 1999,17 (1): 136 ～ 140 ]

Study of Lower Tertiary Organic Geochemistry and Their Sedimentary Environment in Wuyang and Xiangcheng Saline Sag, Henan,China

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通讯作者: 陈斌, bchen63@163.com

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