Chinese Science Bulletin

, Volume 56, Issue 13, pp 1390–1398 | Cite as

The occurrence and significance of C25HBI in Cenozoic saline lacustrine source rocks from the Western Qaidam Basin, NW China

  • YongDong Zhang
  • YongGe Sun
  • LiuJuan Xie
  • AiZhu Jiang
  • PingXia Chai
Open Access
Article Geochemistry

Abstract

The saline lacustrine deposit of the Oligocene Lower Ganchaigou Formation is the main source rock for the Western Qaidam Basin, NW China. In this study, abundant highly branched isoprenoids with 25 carbon atoms (C25HBI) were detected in the upper section of the Lower Ganchaigou Formation. C25HBI is a biomarker for diatoms, and can provide information regarding biogeochemical processes during production and preservation of sedimentary organic matter. The carbon isotopic values of C25HBI in these source rocks were in the range of −18‰ to −20‰. The relative enrichment in 13C of C25HBI suggests that these isoprenoids were derived from diatom blooms. In this case, the diatoms used HCO3 as an additional carbon source to dissolved CO2 in water column due to their high biological productivity. Conversely, the diatom blooms indicated an abundant nutrient supply to the environment and high primary productivity. Thus, the occurrence of 13C-enriched C25HBI could be an ideal marker for good source rocks. The decreased concentration of CO2 (aq) in the water column induced by diatom blooms can result in an enrichment in 13C of organic matter synthesized by primary producers. This may be a possible reason for the occurrence of 13C-enriched organic matter in the Cenozoic source rocks of the Western Qaidam Basin. Previous studies have shown that the high carbon number n-alkanes sourced from diatoms have no carbon preference. Hence, the sources of n-alkanes in regional source rocks are complex, and should be considered when discussing the sources of organic matter in future studies.

Keywords

C25HBI diatoms high carbon number n-alkanes molecular stable carbon isotopic composition Qaidam Basin 

References

  1. 1.
    Sinninghe Damsté J S, Muyzer G, Abbas B, et al. The rise of the Rhizosolenid diatoms. Science, 2004, 304: 584–587CrossRefGoogle Scholar
  2. 2.
    Volkman J K, Barreet S M, Dunstan G A. C25 and C30 highly branched isoprenoid alkenes in laboratory cultures of two marine diatoms. Org Geochem, 1994, 21: 407–414CrossRefGoogle Scholar
  3. 3.
    Belt S T, Masse G, Allard W G, et al. Identification of a C25 highly branched isoprenoid triene in the freshwater diatom Navicula sclesvicensis. Org Geochem, 2001, 32: 1169–1172CrossRefGoogle Scholar
  4. 4.
    Belt S T, Masse G, Allard W G, et al. C25 highly branched isoprenoid alkenes in planktonic diatoms of the Pleurosigma genus. Org Geochem, 2001, 32: 1271–1275CrossRefGoogle Scholar
  5. 5.
    Grossi V, Beker B, Geenevasen J A, et al. C25 highly branched isoprenoid alkenes from the marine benthic diatom Pleurosigma strigosum. Phytochemistry, 2004, 65: 3049–3055CrossRefGoogle Scholar
  6. 6.
    Sinninghe Damsté J S, Rijpstra W I, Schouten S, et al. A C25 highly branched isoprenoid alkene and C25 and C27 n-polyenes in the marine diatom Rhizosolenia setigera. Org Geochem, 1999, 30: 95–100CrossRefGoogle Scholar
  7. 7.
    Gearing P J, Gearing J N, Lytle T F, at al. Hydrocarbons in 60 northeast Gulf of Mexico shelf sediments: A preliminary study. Geochim Cosmochim Acta, 1976, 40: 1005–1017CrossRefGoogle Scholar
  8. 8.
    Rowland S J, Robson J N. The widespread occurrence of highly branched acyclic C20, C25 and C30 hydrocarbons in recent sediments and biota-A review. Mar Environ Res, 1990, 30: 191–216CrossRefGoogle Scholar
  9. 9.
    Kohnen M E L, Sinninghe Damsté J S, Kock-van Dalen A C, et al. Origin and diagenetic transformations of C25 and C30 highly branched isoprenoid sulphur compounds: Further evidence for the formation of organically bound sulphur during early diagenesis. Geochim Cosmochim Acta, 1990, 54: 3053–3063CrossRefGoogle Scholar
  10. 10.
    Shiine H, Suzuki N, Motoyama I, et al. Diatom biomarkers during the Eocene/Oligocene transition in the Il’pinskii Peninsula, Kamchatka, Russia. Palaeogeogr Palaeoclimatol Palaeoecol, 2008, 264: 1–10CrossRefGoogle Scholar
  11. 11.
    Sinninghe Damsté J S, Van-Koert E R, Kock-van Dalen A C, et al. Characterisation of highly branched isoprenoid thiophenes occurring in sediments and immature crude oils. Org Geochem, 1989, 14: 555–567CrossRefGoogle Scholar
  12. 12.
    Belt S T, Allard W G, Masse G, et al. Highly branched isoprenoids (HBIs): Identification of the most common and abundant sedimentary isomers. Geochim Cosmochim Acta, 2000, 64: 3839–3851CrossRefGoogle Scholar
  13. 13.
    Dunlop R W, Jefferies P R. Hydrocarbons of the hypersaline basins of Shark Bay, Western Australia. Org Geochem, 1985, 8: 313–320CrossRefGoogle Scholar
  14. 14.
    Wang R L, Williams W D. Biogeochemical changes in the sediments of Lake Cantara South, a saline lake in South Australia. Hydrobiologia, 2001, 457: 17–24CrossRefGoogle Scholar
  15. 15.
    Volkman J K, Farrington J W, Gagosian R B, et al. Lipid composition of coastal marine sediments from the Peru Upwelling region. In: Bjorϕy M, eds. Advance in Organic Geochemistry 1981. Chichester: Wiley Heyden Publication, 1983. 228–240Google Scholar
  16. 16.
    Aichner B, Wilkes H, Herzschuh U, et al. Biomarker and compound-specific δ 13C evidence for changing environmental conditions and carbon limitation at Lake Koucha, eastern Tibetan Plateau. J Paleolimnol, 2010, 43: 873–899CrossRefGoogle Scholar
  17. 17.
    Volkman J K. Biological marker compounds as indicators of the depositional environments of petroleum source rocks. In: Fleet A J, Kellts K, Talbot M R, eds. Lacustrine Petroleum Source Rocks, Geological Society Special Publication No 40. Oxford: Blackwell, 1988. 103–122Google Scholar
  18. 18.
    Nichols P D, Volkman J K. Occurrence of an isoprenoid C25 diunsaturated alkene and high neutral lipid content in Antarctic sea-ice diatom communities. J Phycol, 1988, 24: 90–96CrossRefGoogle Scholar
  19. 19.
    Yi D, Song J, Cui M, et al. Organic geochemical studies of sinking particulate material in China sea area (I)-Organic matter fluxes and distributional feature of hydrocarbon compounds and fatty acids. Sci China Ser D-Earth Sci, 1998, 41: 208–214CrossRefGoogle Scholar
  20. 20.
    Requejo A G, Quinn J G. Geochemistry of C25 and C30 biogenic alkenes in sediments of the Narragansett bay estuary. Geochim Cosmochim Acta, 1983, 47: 1075–1090CrossRefGoogle Scholar
  21. 21.
    Robson J N, Rowland S J. Identification of novel widely distributed sedimentary acyclic sesterterpenoids. Nature, 1986, 324: 561–563CrossRefGoogle Scholar
  22. 22.
    Katsumata H, Shimoyama A. Thiophenes in the Cretaceous/Tertiary boundary sediments at Kawaruppu, Hokkaido, Japan. Geochem J, 2001, 35: 67–76Google Scholar
  23. 23.
    Peters K E, Walters C C, Moldowan J M. The Biomarker Guide. 2nd ed. Cambridge: Cambridge University Press, 2005Google Scholar
  24. 24.
    Volkman J K, Barrett S M, Blackburn S I, et al. Microalgal biomarker: A review of recent research developments. Org Geochem, 1998, 29: 1163–1179CrossRefGoogle Scholar
  25. 25.
    Summons R E, Barrow R A, Capon R J, et al. The structure of a new C25 isoprenoid akene biomarker from diatomaceous microbial communities. Aust J Chem, 1993, 46: 907–915CrossRefGoogle Scholar
  26. 26.
    Köster J, Rospondek M, Schouten S, et al. Biomarker geochemistry of a foreland basin: The Oligocene Menilite Formation in the Flysch Carpathians of Southeast Poland. Org Geochem, 1998, 29: 649–669CrossRefGoogle Scholar
  27. 27.
    Freeman K H, Wakeham S G, Hayes J M. Predictive isotopic biogeochemistry: Hydrocarbons from anoxic marine basins. Org Geochem, 1994, 21: 629–644CrossRefGoogle Scholar
  28. 28.
    Kohnen M L, Schouten S, Sinninghe Damsté J S, et al. Recognition of paleobiochemicals by a combined molecular sulfur and isotopic geochemical approach. Science, 1992, 256: 358–362CrossRefGoogle Scholar
  29. 29.
    Eglinton T I, Benitez-Nelson B C, Pearson A, et al. Variability in radiocarbon ages of individual organic compounds from marine sediments. Science, 1997, 277: 796–799CrossRefGoogle Scholar
  30. 30.
    Schouten S, Hoefs M L, Sinninghe Damsté J S. A molecular and stable carbon isotopic study of lipids in late Quaternary sediments from the Arabian Sea. Org Geochem, 2000, 31: 509–521CrossRefGoogle Scholar
  31. 31.
    Belt S T, Massé G, Vare L L, et al. Distinctive 13C isotopic signature distinguishes a novel sea ice biomarker in Arctic sediments and sediment traps. Mar Chem, 2008, 112: 158–167CrossRefGoogle Scholar
  32. 32.
    Bieger T, Abrajano T A, Hellou J. Generation of biogenic hydrocarbons during a spring bloom in Newfoundland coastal (NW Atlantic) waters. Org Geochem, 1997, 26: 207–218CrossRefGoogle Scholar
  33. 33.
    Schouten S, Schoell M, Rupstra W I, et al. A molecular stable carbon isotopic study of organic matter in immature Miocene Monterey sediments, Pismo basin. Geochim Cosmochim Acta, 1997, 61: 2065–2082CrossRefGoogle Scholar
  34. 34.
    Fry B, Wainright S C. Diatom sources of 13C rich carbon in marine food webs. Mar Ecol Prog Ser, 1991, 76:149–157CrossRefGoogle Scholar
  35. 35.
    Volkman J K. A review of sterol markers for marine and terrigenous organic matter. Org Geochem, 1986, 9: 83–99CrossRefGoogle Scholar
  36. 36.
    Zhang C M, Zhang Y, Zhang M, et al. Compositional variabilities among crude oils from the southwestern part of the Qaidam Basin, NW China. J Petrol Sci Eng, 2008, 62: 87–92CrossRefGoogle Scholar
  37. 37.
    Grice K, Schouten S, Peters K E, et al. Molecular isotopic characterisation of hydrocarbon biomarkers in Palaeocene-Eocene eva-poritic, lacustrine source rocks from the Jianghan Basin, China. Org Geochem, 1998, 29: 1745–1764CrossRefGoogle Scholar
  38. 38.
    Li J, Fan P, Cui M, et al. C20, C25 and C30 highly branched isoprenoid alkanes in the branched and cyclic hydrocarbon fractions of Qinghai Lake sediments. Acta Sedimentol Sin, 1995, 13: 82–92Google Scholar
  39. 39.
    Pan C, Zhang M, Peng D, et al. Confined pyrolysis of Tertiary lacustrine source rocks in the Western Qaidam Basin, Northwest China: Implications for generative potential and oil maturity evaluation. Appl Geochem, 2010, 25: 276–287CrossRefGoogle Scholar
  40. 40.
    Peng D H. Geology, geochemical characteristics and mechanism of hydrocarbon generating for source rocks from the Tertiary Salty lacustrine facies in the West Region of the Qaidam Basin (in Chinese). Dissertation for the Doctoral Degree. Guangzhou: Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 2004. 1–77Google Scholar
  41. 41.
    Kenig F, Hayes J M, Popp B N, et al. Isotopic biogeochemistry of the Oxford Clay Formation (Jurassic), UK. J Geol Soc, 1994, 151: 139–152CrossRefGoogle Scholar
  42. 42.
    Santos Neto E V D, Hayes J M, Takaki T. Isotopic biogeochemistry of the Neocomian lacustrine and Upper Aptian marine-evaporitic sediments of the Potiguar Basin, Northeastern Brazil. Org Geochem, 1998, 28: 361–381CrossRefGoogle Scholar
  43. 43.
    Peng P A, Fu J M, Sheng G Y, et al. Geochemical characteristics of supergene organic matter in hypersaline environment. Sci China Ser B, 1990, 33: 111–120Google Scholar
  44. 44.
    Volkman J K, Johns R B, Gillan F T, et al. Microbial lipids of an intertidal sediments-I. Fatty acids and hydrocarbons. Geochim Cosmochim Acta, 1980, 44: 1133–1143CrossRefGoogle Scholar
  45. 45.
    Wu Q Y, Yin S, Sheng G Y, et al. The detection of long-chain n-alkanes in planktonic diatom (in Chinese). Chinese Sci Bull, 1992, 24: 2266–2269Google Scholar
  46. 46.
    Zhu Y, Weng H, Su A, et al. Geochemical characteristics of Tertiary saline lacustrine oils in the Western Qaidam Basin, northwest China. Appl Geochem, 2005, 20: 1875–1889CrossRefGoogle Scholar
  47. 47.
    Grantham P J, Wakefield L L. Variations in the sterane carbon number distributions of marine source rock derived crude oils through geological time. Org Geochem, 1988, 12: 61–73CrossRefGoogle Scholar
  48. 48.
    Hayes J M. Factors controlling 13C contents of sedimentary organic compounds: Principles and evidence. Mar Geol, 1993, 113: 111–125CrossRefGoogle Scholar
  49. 49.
    Peters K E, Cunningham A E, Walters C C, et al. Petroleum systems in the Jiangling-Dangyang area, Jianghan basin, China. Org Geochem, 1996, 24: 1035–1060CrossRefGoogle Scholar
  50. 50.
    Schouten S, Hartgers W A, Lopez J F, et al. A molecular isotopic study of 13C-enriched organic matter in evaporitic deposits: Recognition of CO2-limited ecosystems. Org Geochem, 2001, 32: 277–286CrossRefGoogle Scholar

Copyright information

© The Author(s) 2011

Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

Authors and Affiliations

  • YongDong Zhang
    • 1
    • 3
  • YongGe Sun
    • 1
    • 2
  • LiuJuan Xie
    • 2
  • AiZhu Jiang
    • 2
    • 3
  • PingXia Chai
    • 1
  1. 1.State Key Laboratory of Organic Geochemistry, Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhouChina
  2. 2.Department of Earth ScienceZhejiang UniversityHangzhouChina
  3. 3.Graduate University of Chinese Academy of SciencesBeijingChina

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