沟鞭藻：24-降胆甾烷的重要生源

王广利; 李姝

doi:10.11781/sysydz201001064

沟鞭藻：24-降胆甾烷的重要生源

doi: 10.11781/sysydz201001064

王广利^1,2,
李姝³

1.
油气资源与探测国家重点实验室(中国石油大学), 北京, 102249
2. 中国石油大学资源与信息学院, 北京, 102249
3. 中国石油化工股份有限公司, 石油勘探开发研究院, 北京, 100083

基金项目: 国家自然科学基金项目(40703011)

详细信息

作者简介:
王广利(1973- ),男,博士,讲师,主要从事有机地球化学研究.E-mail:sydxwgl@yahoo.cn.

中图分类号: TE122.1
计量
- 文章访问数: 1334
- HTML全文浏览量: 74
- PDF下载量: 916
- 被引次数: 0
出版历程
- 收稿日期: 2009-02-25
- 修回日期: 2009-12-08
- 刊出日期: 2010-02-28

DINOFLAGELLATES AS POTENTIAL PRECURSORS OF 24-NORCHOLESTANES

Wang Guangli^1,2,
Li Shu³

1.
State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China
2. School of Natural Resources and Information Technology, China University of Petroleum, Beijing 102249, China
3. Research Institute of Petroleum Exploration and Production, SINOPEC, Beijing 100083, China

摘要

摘要: 24-降胆甾烷是出现在原油和沉积有机质中的一类重要分子化石,其在地层中的分布与地质时代、古气候和沉积相等有关。国内外研究表明,硅藻是24-降胆甾烷的重要生源。通过研究发现,在缺少硅藻化石的渤海湾盆地济阳坳陷古近系沙河街组湖相沉积中,发育丰富的24-降胆甾烷,且与地层中的沟鞭藻分子化石(三芳甲藻甾烷)和生物化石(囊孢)存在明显相关性。因此可以推测,沟鞭藻是24-降胆甾烷的另一重要生源。由于沟鞭藻和硅藻分布的差异,不同盆地中24-降胆甾烷的来源存在区别。济阳坳陷古近纪气候温暖湿润,沟鞭藻极度繁盛,是24-降胆甾烷的主要贡献者。
- 24-降胆甾烷 /
- 三芳甲藻甾烷 /
- 沟鞭藻 /
- 古气候 /
- 渤海湾盆地
Abstract: Occurring widely in oils and ancient sediments,24-norcholestanes are useful to oil-source correlation and petroleum age evaluation.24-norcholestanes mainly derive from diatoms;however,they are also identified unambiguously from dinoflagellates.Abundant 24-norcholestanes occur in oils and source rocks of the Shahejie Formation,but no diatom fossils have been distinguished from the Shahejie Formation.Thus,other potential precursors might be responsible for these 24-norcholestanes.A correlative relationship between 24-norcholestanes and dinocysts or triaromatic dinosteroids has been observed,revealing that dinoflagellates should be potential precursors of 24-norcholestanes.It seems that 24-norcholestanes come from dinoflagellates and diatoms,respectively,for different basins.Notwithstanding the fact that 24-norsterols have low concentrations in contemporary dinoflagella test,it is concluded that dinoflagellates are key contributors to 24-norcholestanes within subtropical lacustrine sediments of the Eocene-Oligocene Jiyang Depression.
- 24-norcholestane /
- triaromatic dinosteroid hydrocarbon /
- dinoflagellates /
- palaeoclimate /
- Bohai Bay Basin

HTML全文

参考文献(21)

[1]	MOLDOWAN J M,FAGO F J,LEE C Y,et al.Sedimentary 24-n-propylcholestanes,molecular fossils diagnostic of marine algae[J].Science,1990,247:309-312.
[2]	MOLDOWAN J M,DAHL J,JACOBSON S R,et al.Chemostratigraphic reconstruction of biofacies:Molecular evidence linking cyst-forming dinoflagellates with pre-Triassic ancestors[J].Geology,1996,24:159-162.
[3]	MOLDOWAN J M,TALYZINA N M.Biogeochemical evidence for dinoflagellate ancestors in the early Cambrian[J].Science,1998,281:1168-1170.
[4]	HOU DUJIE,WANG TIEGUAN.Dinosteranes in terrestrial deposits and crude oils[J].Chinese Science Bulletin,1995,40(22):1903-1906.
[5]	MOLDOWAN J M,LEE C Y,WATT D S,et al.Analysis and occurrence of C26 sterane in petroleum and source rocks[J].Geochimica et Cosmochimica Acta,1991,55:1065-1081.
[6]	HOLBA A G,DZOU L I P,MASTERSON W D,et al.Application of 24-norcholeatane for constraining source age of petro-leum[J].Organic Geochemistry,1998,29(5/7):1269-1283.
[7]	HOLBA A G,TEGELAAR E W,HUIZINGA B J,et al.24-Norcholestanes as age-sensitive molecular fossils[J].Geo-logy,1998,26(9):783-786.
[8]	NICHOLS P D,PALMISANO A C,RAYNER M S,et al.Occurrence of novel C30 sterols in Antarctic sea-ice diatom communities during a spring bloom[J].Organic Geochemistry,1990,15(5):503-508.
[9]	SUZUKI N,SAMPEI Y,KOGA O.Norcholestane in Miocene Onnagawa siliceous sediments,Japan[J].Geochimica et Cosmochimica Acta,1993,57:4539-4545.
[10]	MOLDOWAN J M,SEIFERT W K,GALLEGOS E J.Relationship between petroleum composition and depositional environment of petroleum source rocks[J].AAPG Bulletin,1985,69:1255-1268.
[11]	ZHANG SHUICHANG,MOLDOWAN J M,BIAN LIZENG,et al.Biological and molecular geochemical evidence for dinoflagellate ancestors in the upper Sinian-Cambrian[J].Acta Geologica Sinica,2000,74(4):740-747.
[12]	GOAD L J,WITHERS N.Identification of 27-nor (24R) 24-methylcholesta-5,22-dien-3β-ol and brassicasterol as the major sterols of the marine dinoflagellate Gymnodinium simplex[J].Lipids,1982,17:853-858.
[13]	王新洲,宋一涛,王学军.石油成因与排油物理模拟:方法、机理及应用[M].东营:石油大学出版社,1996:14-32.
[14]	RAMPEN S W,SCHOUTEN S,PANOTO F E,et al.On the origin of 24-norcholesanes and their use as age-diagnostic biomarkers[J].Geology,2007,35:419-422.
[15]	王秉海,钱凯.胜利油区地质研究与勘探实践[M].东营:石油大学出版社,1992:34-48.
[16]	徐金鲤,潘昭仁,杨育梅,等.山东胜利油区早第三纪沟鞭藻类和疑源类[M].东营:石油大学出版社,1997:5-40.
[17]	张林晔,刘庆,张春荣.东营凹陷成烃与成藏关系研究[M].北京:地质出版社,2005:8-34.
[18]	张林晔,孔祥星,张春荣,等.济阳坳陷下第三系优质烃源岩的发育及其意义[J].地球化学,2003,32(1):35-42.
[19]	王广利,张林晔,陈致林,等.渤海湾盆地梁家楼地区油气充注的分子示踪[J].石油实验地质,2008,30(2):169-173.
[20]	邓宏文,钱凯.沉积地球化学与环境分析[M].兰州:甘肃科学技术出版社,1993:18-28.
[21]	王广利,王铁冠,陈致林,等.济阳坳陷古近纪沟鞭藻分子化石的分布与控制因素[J].沉积学报,2008,26(1):100-104.