羌北坳陷雪山组地层形成环境及古地理意义THE SEDIMENTARY ENVIRONMENT OF THE XUESHAN FORMATION IN THE NORTHERN DEPRESSION, QIANGTANG BASIN AND ITS PALAEOGEOGRAPHIC SIGNIFICANCE
刘建清,贾保江,杨平,陈玉禄,彭波,李振江
摘要(Abstract)：
以羌北坳陷龙尾错地区雪山组地层为例,通过对沉积物来源、古生态、碳氧同位素、粒度特征及其沉积序列、古水流向的研究,揭示了上侏罗统—下白垩统雪山组地层沉积时期的沉积环境及古地理格局,认为该区雪山组地层是在中央隆起带露出水面并向羌北地区提供物源的古构造—地理条件下形成的三角洲沉积体系,具辫状河成因的显著特点。
关键词(KeyWords)： 辫状河;三角洲;雪山组;侏罗系;白垩系;羌北坳陷;西藏
基金项目(Foundation): 国家油气专项(XQ2004-06)资助
作者(Author): 刘建清,贾保江,杨平,陈玉禄,彭波,李振江
参考文献(References)：
- ②江汉石油管理局勘探开发研究院.1998.西长梁等四幅1/10万石油地质调查(联测).
- ③成都地质矿产研究所.2005.羌塘盆地龙尾错区块1/5万石油地质构造详查.
- 成都地质学院陕北队.1978.沉积岩(物)粒度分析及其应用.北京:地质出版社.55—105
- 方德庆,云金表,李椿.2002.北羌塘盆地中部时代探讨.地层学杂志,26(1):68—72
- 金玮,王成善,李亚林.2006.西藏双湖托纳木上侏罗统雪山组物源分析.大地构造与成矿学,30(4):519—526
- 李双建,石永红,王清晨.2006.碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示.沉积学报,24(1):28—35
- 李勇,黎兵,Steffen D,Densmore A L,Richardson NJ,周荣军,Llis M A,张毅.2006.青藏高原东缘晚新生代成都盆地物源分析与水系演化.沉积学报,24(3):309—320
- 刘宝?,曾允孚.1985.岩相古地理基础和工作方法.北京:地质出版社.98—120
- 陆克政,朱筱敏,漆家福.2001.含油气盆地分析.北京:石油大学出版社.73—106
- 彭晓彤,周怀阳,叶瑛,陈光廉.2005.珠江河口沉积物粒度特征及其对底层水动力环境的指示.沉积学报,22(3):480—488
- 王剑,谭富文,陈明,王小龙.2004a.藏北羌塘盆地早侏罗世—中侏罗世早期沉积构造特征.沉积学报,22(2):480—488
- 王剑,谭富文,王成善.2004b.青藏高原重点沉积盆地油气资源潜力分析.北京:地质出版社.55—86
- Bull WB.1962.Relation of textural(CM)patterns to depositionalenvironment of alluvial-fan deposits.J.Sedi m.Petro.,32:211—216
- Fang De-qing,Yun Jin-biao&Li Chun.2002.DIscussion of the Xue-shan Formationin the north of Qiangtang Basin,Qinghai-TibetPlateau.Journal of Stratigraphy,26(1):68—72
- Jin Wei,Wang Cheng-shan&Li Ya-lin.2006.Provenance analysisof the Late Jurassic Xueshan Formation in Shuanghu Tuonamuregion,Qiangtang Basin,Tibet.Geotectonica et Metallogenia,30(4):51—526
- Keith ML&Weber J N.1964.Carbon and oxygenisotopic composi-tion of selected li mestone and fossils.Geoch.et Constnoch.Ac-ta,28:1786—1816
- Li Shuang-jian,Shi Yong-hong&Wang Qing-chen.2006.The anal-ysis of detrital heavy minerals in Cretaceous—Tertiary sand-stones,Kuqa Depression and their i mplications for provenance.Acta Sedi mentologica Sinica,24(1):28—35
- Li Yong,Li Bing,Steffen D,Densmore A L,Richardson NJ,ZhouRong-jun,Llis M A&Zhang Yi.2006.Provenance analysisand drainage evolution in Late Cenozoic Chengdu Basin on theeastern margin of Tibetan Plateau.Acta Sedi mentologica Sini-ca,24(3):309—320
- Liu Bao-jun&Zeng Yun-fu.1985.The basis of facies analysis andpalaeogeography and its working method.Beijing:GeologicalPublishing House.98—120
- Lu Ke-zheng,Zhu Xiao-ming&Qi Jia-fu.2001.Geological analysisesof sedi mentary basin richedin petroleumand gas.Beijing:Pub-lishing House of Petroleum University.73—106
- Peng Xiao-tong,Zhou Huai-yang,Ye Ying&Chen Guang-lian.2005.Characteristics of sedi ment grain size and their i mplica-tions for bottom hydrodynamic environment in the Pearl RiverEstuary.Acta Sedi mentologica Sinica,22(3):480—488
- Sahu B K.1964.Depositional mechanisms fromthe size analysis ofclastic sedi ments.J.sedi m.Petro.,34:73—83
- Wang Jian,Tan Fu-wen,Chen Ming&Wang Xiao-long.2004a.Thesedi mentary and tectonic characteristics of Qiangtang Basin inthe Early Jurassic in Northern Xizang(Tibet).Acta Sedi men-tologica Sinica,22(2):480—488
- Wang Jian,Tan Fu-wen&Wang Cheng-shan.2004b.Petroleumand gas potency analysis of the main sedi mentary basinin Qing-hai-Tibet Plateau.BeiJing:Geological Publishing House.55—86
- Visher G S.1965.Fluvial processes as interpreted from ancient andrecent fluvial depositsin:Midlleton C Ved.Pri mary sedi mentarystructures and their hydrodynamic interpretation.Soc.Econ.Paleontologists Mineralogists,Spec.Publ.12:116—132
- Visher G S.1969.Grain size distribution and depositional proces-ses,J.Sedi m.,Petro.,39:1074—1106