收稿日期: 2013-08-07
修回日期: 2013-10-28
网络出版日期: 2014-06-10
基金资助
国家自然科学基金项目(编号:41102086)资助.
The Impact on Organic Matter Preservation by the Degree of Oxidation and Reductionand Sedimentation Rates of Erlian Basin
Received date: 2013-08-07
Revised date: 2013-10-28
Online published: 2014-06-10
沉积环境的氧化—还原程度和沉积速率是影响有机质保存的重要因素。以中国北部的二连盆地为研究对象探讨了氧化—还原程度和沉积速率对有机质保存的影响，发现二者均明显影响着有机质的保存:还原性越强越有利于有机质保存，沉积速率越大越有利于有机质的保存。综合分析发现有机质的保存并非受单一因素控制，氧化—还原程度偏氧化的凹陷中如果沉积速率较高，有机质快速埋藏可以缩短有机质的降解时间，从而使有机质也能得到较好的保存；沉积速率低的凹陷中如果氧化—还原程度偏还原，有机质也能得到较好的保存。有机质保存受氧化—还原程度和沉积速率的综合影响，它们在有机质的保存中起到“相互补充”的作用，单一通过氧化—还原程度或沉积速率分析有机质的保存程度是片面的。
丁修建,柳广弟，卢学军，黄志龙，孙明亮，陈哲龙，柳庄小雪 . 二连盆地氧化—还原程度和沉积速率对有机质保存的影响[J]. 天然气地球科学, 2014 , 25(6) : 810 -817 . DOI: 10.11764/j.issn.1672-1926.2014.06.810
The degree of oxidation and reduction of sedimentary environment and sedimentation rates are two vital factors impacting the preservation of organic matter.The author has attempted to study their impaction by instance of Erlian Basin in northern China and found that the strong reducing environment and high sedimentation rates are favorable for the preservation of organic matter.By comprehensive analysis,the author found that the preservation of organic matter is not controlled by a single factor,for example in some sags with their sedimentary environments proximal to oxidation,if the sedimentation rates were higher,the rapid burial of organic matter could shorten the time of degradation;in other sags with lower sedimentation rates,if their sedimentation environment was reducing,organic matter can also be well preserved.In summary,the preservation of organic matter is affected synthetically by the degree of oxidation and reduction and sedimentation rates.They play a role of “mutual complementation” during the preservation of organic matter.Previous research on the preservation of organic matter only analyzed single factor such as the degree of oxidation and reduction or sedimentation rates,which is somewhat partial.
［1］Arthur M A,Dean W E.Organic matter production and preservation and evolution of anoxia in the Holocene Black Sea[J].Paleoceanography,1998,13(4):395-411.
［2］Hedges J I,Keil R G.Sedimentary organic matter preservation:An assessment and speculative synthesis[J].Marine Chemistry,1995,49(2):81-115.
［3］Wang Dongxu,Zeng Jianhui,Gong Xiumei.Impact of gypsolith on the formation of oil & gas reservoir[J].Natural Gas Geoscience,2005,16(3):329-333.［王东旭,曾溅辉,宫秀梅.膏盐岩层对油气成藏的影响[J].天然气地球科学,2005,16(3):329-333.］
［4］Zhang Changjiang,Liu Guangxiang,Zeng Huasheng,et al.Depositional environments and controlling factors of Permian Source Rocks in western Sichuan Basin[J].Natural Gas Geoscience,2012,23(4):626-635.［张长江,刘光祥,曾华盛,等.川西地区二叠系烃源岩发育环境及控制因素[J].天然气地球科学,2012,23(4):626-635.］
［5］Graciansky D P C,Herbin J P,Montadert L,et al.Ocean-wide stagnation episode in the Late Cretaceous[J].Nature,1984,22(38):346-349.
［6］Storm K M.Land-locked waters and the deposition of black muds,in trask,recent marine sediments[J].AAPG Bulletin,1969,45(5):356-370.
［7］Richards F A,Vacearo R F.The Cariaco Trench,an anaerobic basin in the Caribbean[J].Deep-Sea Research,1956,3(3):214-228.
［8］Richards F A.Anoxic basins and fjords[M]// Riley J P,Skirrow G.Chemical Oceanography.New York:Academic Press,1965:611-645.
［9］Mazzinia A,Ivanovb M K,Nermoen A,et al.Complex plumbing systems in the near subsurface:Geometries of authigenic carbonates from Dolgovskoy Mound(Black Sea) constrained by analogue experiments[J].Marine and Petroleum Geology,2008,25(6):457-472.
［10］Degens E T,Von Herzen,R P,Wong How-Kin,et al.Lake Tanganyika:Water chemistry,sediments,geological structure[J].Naturwissenschaften,1971,58(5):224-291.
［11］Degens E T,Von Herzen R P,Wong How-Kin.Lake Kivu:Structure,chemistry and biology of an East Africa rift lake[J].Geologische Rundschau,1973,62(1):245-277.
［12］Wu Guoxuan,Zhu Weilin,Li Mingbi,et al.Important Factor controlling the development of rich oil kitchen sags:Anoxic conditions[J].China Offshore Oil and Gas:Geology,1993,13(1):1-6.［吴国瑄,朱伟林,黎明碧,等.古湖缺氧条件是控制富生油凹陷形成的重要因素——来自珠江口盆地的证据[J].中国海上油气:地质,1999,13(1):1-6.］
［13］Jin Qiang,Zhu Guangyou,Wang Juan.Deposition and distribution of high-potential source rocks in saline lacustrine environments[J].Journal of China University of Petroleum:Edition of Natural Sciences,2008,32(4):19-23.［金强,朱光有,王娟.咸化湖盆优质烃源岩的形成与分布[J].中国石油大学学报:自然科学版,2008,32(4):19-23.］
［14］Demaison G J,Moore G T.Anoxic environments and oil source bed genesis[J].Organic Geochemistry,1980,2(1):9-31.
［15］Katz B J.Controls on distribution of lacustrine source rocks through time and space[M]//Katz B J.Lacustrine Basin Exploration:Case Studies and Modern Analogs.AAPG Memoir 50.Tulsa:American Association of Petroleum Geologists,1990:61-76.
［16］Ibach L E J.Relationship between sedimentation rate and total organic carbon content in ancient marine sediments[J].AAPG Bulletin,1982,66(2):170-188.
［17］Tyson R V.Sedimentation rate,dilution,preservation and total organic carbon:Some results of a modelling study[J].Organic Geochemistry,2001,32(2):333-339.
［18］Stow D A V,Huc A Y,Bertrand P.Depositional processes of black shales in deep water[J].Marine and Petroleum Geology,2001,18(4):491-498.
［19］Loutit T S,Hardenbol J,Vail P R,et al .Condensed sections:The key to age determination and correlation of continental margin sequences[M]//Wilgus C K,Hastings B S,Kendall C G,et al.Sea Level Changes:An Integrated Approach.SEPM Special Publication 42.Tulsa:Society for Sedimentary Geology ,1988:183-213 .
［20］Wignall P B.Model for transgressive black shales[J].Gelogy,1991,19(2):167-170.
［21］Wugang.Reconstruction of Jurassic-Cretaceous Prototype basin of Erlian Basin[D].Dongying:China University of Petroleum(East Cina),2009.[吴刚.二连盆地侏罗纪—白垩纪原型盆地恢复[D].东营:中国地质大学(华东),2009.]
［22］Huang Difan.A Comprehensive Survey Report on the Qinghai Lake[M].Beijing:Science Press,1979:152-156.［黄第藩.青海湖综合考察报告[M].北京:科学出版社,1979:152-156.］
［23］Stein R.Organic carbon content/sedimentation rate relationship and its paleoenvironmental significance for marine sediments[J].Geo-marine Letters,1990,(10):37-44.
［24］Liang Digang.Petroleum Generation of Jizhong Depression[M].Beijing:Petroleum Industry Press,2001:111-112.［梁狄刚.冀中坳陷油气的生成[M].北京:石油工业出版社,2001:111-112.］
［25］Wang Xiandong,Jiang Zhenxue,Pang Xiongqi.Summarization of the paleohydrocarbon-water contact restoring methods[J].Advance in Earth Sciences,2003,18(3):412-419.［王显东,姜振学,庞雄奇.古油气水界面恢复方法综述[J].地球科学进展,2003,18(3):412-419.］
［26］Wang Pinxian,Liu Chuanlian.Research Method of Paleolimnology in Oil-bearing Basin[M].Beijing:Ocean Press,1993:1-12.［汪品先,刘传联.含油盆地古湖泊学研究方法[M].北京:海洋出版社,1993:1-12.］
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