Palaeogene Environmental Changes Deduced from Stable Isotopic Data from Bulk Carbonates in the Sanshui Basin,South China

LIU Chun lian; Franz T. Fürsich; BAI Yan; YANG Xiao qiang; LI Guo qiang

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Article Navigation > Acta Sedimentologica Sinica > 2004 > 22(1): 36-40

LIU Chun lian, Franz T. Fürsich, BAI Yan, YANG Xiao qiang, LI Guo qiang. Palaeogene Environmental Changes Deduced from Stable Isotopic Data from Bulk Carbonates in the Sanshui Basin,South China[J]. Acta Sedimentologica Sinica, 2004, 22(1): 36-40.

Citation:

Palaeogene Environmental Changes Deduced from Stable Isotopic Data from Bulk Carbonates in the Sanshui Basin,South China

1.
Deparment of Geology, Zhongshan University, Guangzhou 510275;
2.
Institut für Geologie und Pal-ontologie, Universitt Würzburg, Germany D97070

Received Date: 2002-11-06
Rev Recd Date: 2003-10-13
Publish Date: 2004-03-10

Abstract

The lacustrine environmental evolution of early Palaeogene Sanshui Basin has been established based on stable isotopic data from bulk carbonates from the Upper Xinzhuang Formation and the Honggang Member of the Buxin Formation (major oil source bed of the Basin). Three stages, when the basin had connection with the sea, have been recognized. With the transgression of sea waters and increased regional aridity, δ ¹⁸ O values showed a sharp positive shift, accompanied by the deposition of dolomites, whereas δ ¹³ C displayed lower values due to decomposition of organic matter that occurred at this time, which resulted in water rich in ¹³ C-depleted CO ₂. During the intervals without connection with the sea, the δ ¹⁸ O and δ ¹³ C pattern showed a positive covariance (r = 0.65). This moderately high covariance, although poorer than that reported from typical closed lakes, suggests that the basin had, like most closed lakes, relatively long residence times. Gypsum deposits that occurred frequently in the core section also indicate hydrological closure conditions. This means that the Sanshui Basin was probably a periodic hydrologically closed lake during these times. The stable isotopic compositions of carbonates were mainly influenced by variations in evaporation/precipitation balance. Higher δ ¹⁸ O values indicate overall increase in E/P ratios, low lake levels and concentrated waters.Lower δ ¹⁸ O values suggest decrease in E/P ratios and a large fluvial inflow and a subsequent high stand of water level. δ ¹³ C shows more variability than δ ¹⁸ O, which implies that δ ¹³ C was also controlled by organic activity and usually reflects the productivity, burial vs. reoxidation of organic material.
- stable isotopes,
- carbonates,
- lacustrine sediments,
- Palaeogene,
- Sanshui Basin

References

[1]	Anadón P, Utrilla R. Sedimentology and isotope geochemistry of lacustrine carbonates of the Oligocene Campins Basin, north-east Spain. Sedimentology,1993, 40: 699～720.
[2]	Anderson W T, Mullins H T, Ito E. Stable isotope record from Seneca Lake, New York: Evidence for a cold paleoclimate following the Younger Dryas. Geology,1997, 25: 135～138.
[3]	Dean W E,Schwalb A. Holocene environmental and climatic change in the Northern Great Plains as recorded in the geochemistry of sediments in Pickerel Lake, South Dakota. Quaternary International,2000, 67: 5～20
[4]	Drummond C N, Wilkinson B H, Lohmann K C, et al. Effect of regional topography and hydrology on the lacustrine isotopic record of Miocene paleoclimate in the Rocky Mountains. Palaeogeography, Palaeoclimatology,Palaeoecology,1993, 101: 67～79
[5]	Talbot M R, Kelts K.Paleolimnological signatures from carbon and oxygen isotopic ratios in carbonates from organic carbon-rich lacustrine sediments. In: Katz B J ed.Lacustrine Basin Exploration- Case Studies and Modern Analogs. AAPGMemoir,1990, 50: 99～112
[6]	Utrilla R,Vázquez A,Anadón P. Paleohydrology of the Upper Miocene Bicorb Lake (eastern Spain) as inferred from stable isotopic data from inorganic carbonate. Sedimentary Geology,1998, 121:191～206
[7]	Yu Z, McAndrews J H, Eicher U. Middle Holocene dry climate caused by change in atmospheric circulation patterns: Evidence from lake levels and stable isotopes. Geology,1997, 25: 251～254.
[8]	刘传联. 稳定同位素地球化学方法在古湖泊学研究中的应用. 见:汪品先,刘传联. 含油盆地古湖泊学研究方法. 北京:海洋出版社,1993. 96～123[Liu Chuanlian. 1993. Application of stable isotopic geochemical methods to paleolimnological research. In: Wang Pinxian, Liu Chuanlian, eds. Paleolimnological research methods of oil-producing basins. Beijing: Marine Press, 1993. 96～123]
[9]	彭立才, 孙镇城. 青藏高原咸化湖泊沉积碳酸盐岩碳、氧同位素组成及其地质意义. 岩石矿物学杂志 1996, 15(3):235～240[ Peng Licai, Sun Zhencheng. Carbon and oxygen stable isotopic composition of carbonate rocks from saline lakes on Qinghai-Xizang Plateau and its geological significance. Acta Petrologica et Mineralogica, 1996, 15 (3): 235～240]
[10]	Drummond C N, Patterson W P, Walker J C. Climatic forcing of carbon-oxygen covariance in temperate-region marl lakes. Geology,1995,23: 1031～1034
[11]	Li H C, Ku T L. δ 13C-δ 18O covariance as paleohydrological indicator for closed-basin lakes. Palaeogeography,Palaeoclimatology, Palaeoecology,1997,133: 69～80
[12]	刘传联, 赵泉鸿, 汪品先. 湖相碳酸盐氧碳同位素的相关性与生油古湖泊类型. 地球化学, 2001, 30(4): 363～367[ Liu Chuanlian, Zhao Quanhong, Wang Pinxian. Correlation between carbon and oxygen isotopic ratios of lacustrine carbonates and types of oil-producing paleolakes. Geochimica, 2001, 30 (4): 363～367
[13]	张秀莲. 碳酸盐岩中氧、碳同位素与古盐度、古温度的关系. 沉积学报, 1985, 3 (4): 17～30[Zhang Xiulian. Relationship between carbon and oxygen stable isotope in carbonate rocks and paleosalinity and paleotemperature of seawater.Acta Sedimentologica Sinica, 1985, 3 (4): 17～30]
[14]	邵龙义. 碳酸盐岩氧、碳同位素与古温度等的关系. 中国矿业大学学报, 1994,23(1): 39～45[ Shao Longyi. The Relation of the oxygen and carbon isotope in the carbonate rocks to the paleotemperature etc. Journal of China University of Mining & Technology, 1994, 23 (1): 39～45]
[15]	Knoll A H,Hayes J M,Kaufman J A,et al. Secular variation in carbon isotope ratios from Upper Proterozoic successions of Svalbard and East Greenland. Nature,1986,321 (26): 832～838
[16]	王可法. 海相碳酸盐碳同位素组成及其意义. 地质地球化学,1994, 5: 50～54[Wang Kefa. Carbon isotopic composition in marine carbonates and its geological significance. Geology Geochemistry, 1994, 5: 50～54]
[17]	唐忠驭. 三水盆地火山活动与油气的关系. 石油与天然气地质,1984, 5 (2): 89～100[Tang Zhongyu. Relationship of oil and gas with volcanism in Sanshui Basin. Oil & Gas Geology, 1984, 5 (2): 89～100]
[18]	张显球, 周晓萍, 陈修奕.三水盆地白垩-第三纪钻井地层划分对比图集. 北京:海洋出版社,1993.181[Zhang Xianqiu,Zhou Xiaoping and Chen Xiuyi. Atlas of Cretaceous to Tertiary strata classification and correlation in the Sanshui Basin of South China. Beijing: Marine Press, 1993.1～177]
[19]	严俊君, 金之钧. 广东三水残留盆地特征及油气地质条件. 沉积学报,1997, 15(1): 141～146[Yan Junjun and Jin Zhijun. The features of the Sanshui Relict Basin and its conditions of petroleum geology, Guangdong Province. Acta Sedimentologica Sinica, 1997, 15 (1): 141～146]
[20]	王将克, 李国藩, 汪晋三. 广东三水盆地及近邻盆地早第三纪鱼化石. 中国古生物志, 总号第160册, 新丙种第22号. 北京:科学出版社,1981.1～90[Wang Jiangke,Li Guofan,and Wang Jinsan.The early Tertiary fossil fishes from Sanshui and its adjacent basin, Guangdong. Beijing:Science Press, 1981.1～90]
[21]	叶敦禧. 广东省珠江三角洲地区下第三系沉积特征及含矿性.广东地质科技, 1982, 1: 25～38[Ye Dunxi. Depositional features and of the Lower Palaeogene in the Pearl River Delta area of Guangdong. Guangdong Geological Science, 1982, 1: 25～38]
[22]	Verzer J. Depositional and diagenetic history of limestones: stable and radiogenic isotopes. In: Clauer N,Chanduri S, eds. Isotopic signatures and sedimentarz records.- Lecture Notes in Earth Sciences.Berlin:Springer, 1992,3: 13～48
[23]	Magaritz M.A new explanation for cyclic deposition in marine evaporite basins: meteoric water input. Chemical Geology, 1987, 62: 239～250
[24]	O'Shea K J, Miles M C, Fritz P, et al. Oxygen-18 and carbon-13 in the carbonates of the Salina formation of southwestern Ortario. Canada Journal of Earth Science, 1988, 25: 182～194
[25]	Sheu D D. 13C and 18O compositions of carbonates from a cyclic carbonate-evaporate rock sequence: Evidences for meteoric water input. ChemicalGeology,1990, 81: 157～162

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Palaeogene Environmental Changes Deduced from Stable Isotopic Data from Bulk Carbonates in the Sanshui Basin,South China

1. Deparment of Geology, Zhongshan University, Guangzhou 510275;

2. Institut für Geologie und Pal-ontologie, Universitt Würzburg, Germany D97070

Received Date: 2002-11-06

Rev Recd Date: 2003-10-13

Publish Date: 2004-03-10

Key words:

Abstract: The lacustrine environmental evolution of early Palaeogene Sanshui Basin has been established based on stable isotopic data from bulk carbonates from the Upper Xinzhuang Formation and the Honggang Member of the Buxin Formation (major oil source bed of the Basin). Three stages, when the basin had connection with the sea, have been recognized. With the transgression of sea waters and increased regional aridity, δ ¹⁸ O values showed a sharp positive shift, accompanied by the deposition of dolomites, whereas δ ¹³ C displayed lower values due to decomposition of organic matter that occurred at this time, which resulted in water rich in ¹³ C-depleted CO ₂. During the intervals without connection with the sea, the δ ¹⁸ O and δ ¹³ C pattern showed a positive covariance (r = 0.65). This moderately high covariance, although poorer than that reported from typical closed lakes, suggests that the basin had, like most closed lakes, relatively long residence times. Gypsum deposits that occurred frequently in the core section also indicate hydrological closure conditions. This means that the Sanshui Basin was probably a periodic hydrologically closed lake during these times. The stable isotopic compositions of carbonates were mainly influenced by variations in evaporation/precipitation balance. Higher δ ¹⁸ O values indicate overall increase in E/P ratios, low lake levels and concentrated waters.Lower δ ¹⁸ O values suggest decrease in E/P ratios and a large fluvial inflow and a subsequent high stand of water level. δ ¹³ C shows more variability than δ ¹⁸ O, which implies that δ ¹³ C was also controlled by organic activity and usually reflects the productivity, burial vs. reoxidation of organic material.

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Reference (25)

[1]	Anadón P, Utrilla R. Sedimentology and isotope geochemistry of lacustrine carbonates of the Oligocene Campins Basin, north-east Spain. Sedimentology,1993, 40: 699～720.
[2]	Anderson W T, Mullins H T, Ito E. Stable isotope record from Seneca Lake, New York: Evidence for a cold paleoclimate following the Younger Dryas. Geology,1997, 25: 135～138.
[3]	Dean W E,Schwalb A. Holocene environmental and climatic change in the Northern Great Plains as recorded in the geochemistry of sediments in Pickerel Lake, South Dakota. Quaternary International,2000, 67: 5～20
[4]	Drummond C N, Wilkinson B H, Lohmann K C, et al. Effect of regional topography and hydrology on the lacustrine isotopic record of Miocene paleoclimate in the Rocky Mountains. Palaeogeography, Palaeoclimatology,Palaeoecology,1993, 101: 67～79
[5]	Talbot M R, Kelts K.Paleolimnological signatures from carbon and oxygen isotopic ratios in carbonates from organic carbon-rich lacustrine sediments. In: Katz B J ed.Lacustrine Basin Exploration- Case Studies and Modern Analogs. AAPGMemoir,1990, 50: 99～112
[6]	Utrilla R,Vázquez A,Anadón P. Paleohydrology of the Upper Miocene Bicorb Lake (eastern Spain) as inferred from stable isotopic data from inorganic carbonate. Sedimentary Geology,1998, 121:191～206
[7]	Yu Z, McAndrews J H, Eicher U. Middle Holocene dry climate caused by change in atmospheric circulation patterns: Evidence from lake levels and stable isotopes. Geology,1997, 25: 251～254.
[8]	刘传联. 稳定同位素地球化学方法在古湖泊学研究中的应用. 见:汪品先,刘传联. 含油盆地古湖泊学研究方法. 北京:海洋出版社,1993. 96～123[Liu Chuanlian. 1993. Application of stable isotopic geochemical methods to paleolimnological research. In: Wang Pinxian, Liu Chuanlian, eds. Paleolimnological research methods of oil-producing basins. Beijing: Marine Press, 1993. 96～123]
[9]	彭立才, 孙镇城. 青藏高原咸化湖泊沉积碳酸盐岩碳、氧同位素组成及其地质意义. 岩石矿物学杂志 1996, 15(3):235～240[ Peng Licai, Sun Zhencheng. Carbon and oxygen stable isotopic composition of carbonate rocks from saline lakes on Qinghai-Xizang Plateau and its geological significance. Acta Petrologica et Mineralogica, 1996, 15 (3): 235～240]
[10]	Drummond C N, Patterson W P, Walker J C. Climatic forcing of carbon-oxygen covariance in temperate-region marl lakes. Geology,1995,23: 1031～1034
[11]	Li H C, Ku T L. δ 13C-δ 18O covariance as paleohydrological indicator for closed-basin lakes. Palaeogeography,Palaeoclimatology, Palaeoecology,1997,133: 69～80
[12]	刘传联, 赵泉鸿, 汪品先. 湖相碳酸盐氧碳同位素的相关性与生油古湖泊类型. 地球化学, 2001, 30(4): 363～367[ Liu Chuanlian, Zhao Quanhong, Wang Pinxian. Correlation between carbon and oxygen isotopic ratios of lacustrine carbonates and types of oil-producing paleolakes. Geochimica, 2001, 30 (4): 363～367
[13]	张秀莲. 碳酸盐岩中氧、碳同位素与古盐度、古温度的关系. 沉积学报, 1985, 3 (4): 17～30[Zhang Xiulian. Relationship between carbon and oxygen stable isotope in carbonate rocks and paleosalinity and paleotemperature of seawater.Acta Sedimentologica Sinica, 1985, 3 (4): 17～30]
[14]	邵龙义. 碳酸盐岩氧、碳同位素与古温度等的关系. 中国矿业大学学报, 1994,23(1): 39～45[ Shao Longyi. The Relation of the oxygen and carbon isotope in the carbonate rocks to the paleotemperature etc. Journal of China University of Mining & Technology, 1994, 23 (1): 39～45]
[15]	Knoll A H,Hayes J M,Kaufman J A,et al. Secular variation in carbon isotope ratios from Upper Proterozoic successions of Svalbard and East Greenland. Nature,1986,321 (26): 832～838
[16]	王可法. 海相碳酸盐碳同位素组成及其意义. 地质地球化学,1994, 5: 50～54[Wang Kefa. Carbon isotopic composition in marine carbonates and its geological significance. Geology Geochemistry, 1994, 5: 50～54]
[17]	唐忠驭. 三水盆地火山活动与油气的关系. 石油与天然气地质,1984, 5 (2): 89～100[Tang Zhongyu. Relationship of oil and gas with volcanism in Sanshui Basin. Oil & Gas Geology, 1984, 5 (2): 89～100]
[18]	张显球, 周晓萍, 陈修奕.三水盆地白垩-第三纪钻井地层划分对比图集. 北京:海洋出版社,1993.181[Zhang Xianqiu,Zhou Xiaoping and Chen Xiuyi. Atlas of Cretaceous to Tertiary strata classification and correlation in the Sanshui Basin of South China. Beijing: Marine Press, 1993.1～177]
[19]	严俊君, 金之钧. 广东三水残留盆地特征及油气地质条件. 沉积学报,1997, 15(1): 141～146[Yan Junjun and Jin Zhijun. The features of the Sanshui Relict Basin and its conditions of petroleum geology, Guangdong Province. Acta Sedimentologica Sinica, 1997, 15 (1): 141～146]
[20]	王将克, 李国藩, 汪晋三. 广东三水盆地及近邻盆地早第三纪鱼化石. 中国古生物志, 总号第160册, 新丙种第22号. 北京:科学出版社,1981.1～90[Wang Jiangke,Li Guofan,and Wang Jinsan.The early Tertiary fossil fishes from Sanshui and its adjacent basin, Guangdong. Beijing:Science Press, 1981.1～90]
[21]	叶敦禧. 广东省珠江三角洲地区下第三系沉积特征及含矿性.广东地质科技, 1982, 1: 25～38[Ye Dunxi. Depositional features and of the Lower Palaeogene in the Pearl River Delta area of Guangdong. Guangdong Geological Science, 1982, 1: 25～38]
[22]	Verzer J. Depositional and diagenetic history of limestones: stable and radiogenic isotopes. In: Clauer N,Chanduri S, eds. Isotopic signatures and sedimentarz records.- Lecture Notes in Earth Sciences.Berlin:Springer, 1992,3: 13～48
[23]	Magaritz M.A new explanation for cyclic deposition in marine evaporite basins: meteoric water input. Chemical Geology, 1987, 62: 239～250
[24]	O'Shea K J, Miles M C, Fritz P, et al. Oxygen-18 and carbon-13 in the carbonates of the Salina formation of southwestern Ortario. Canada Journal of Earth Science, 1988, 25: 182～194
[25]	Sheu D D. 13C and 18O compositions of carbonates from a cyclic carbonate-evaporate rock sequence: Evidences for meteoric water input. ChemicalGeology,1990, 81: 157～162

Palaeogene Environmental Changes Deduced from Stable Isotopic Data from Bulk Carbonates in the Sanshui Basin,South China

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