塔河地区志留系的对比
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摘要
塔河地区遭受过多次的构造抬升和剥蚀,志留系分布不规则,地层划分对比是本区寻找志留系油气藏的难题之一。本文综合应用古生物、测井、地震和野外露头资料进行地层划分对比,首先通过疑源类古生物的分析,确认塔河地区井下志留系的存在;继而分析其地震反射特征,通过地震-测井地层对比,将其与东河砂岩予以区分;最后通过与柯坪野外露头剖面的岩石地层对比,确认塔河地区所钻遇的志留系确为下志留统的柯坪塔格组中段。
Tahe area experienced multiple structurally uplift and corresponding erosion,which made the distribution of Silurian unpredictive. Correlation of stratigraphy of Silurian became one of the difficulties in hydrocarbon exploration. Based on integrated analysis of microfossils,logging,seismic and outcrop, the classification and correlation of Silurian is studied. Firstly, the analysis of microfossils validate the existence of the Silurian. Secondly, the Silurian can be differentiated from Upper Deovonian Donghe Sandstone in terms of seismic stratigraphy and logging cross-sections analysis. Finally compared petrostratiphically with the outcrops of Keping area, the underground Silurian of Tahe Oilfield is ascertained to be the Middle Member of Lower Silurian Kepingtage Formation.
Tahe area experienced multiple structurally uplift and corresponding erosion,which made the distribution of Silurian unpredictive. Correlation of stratigraphy of Silurian became one of the difficulties in hydrocarbon exploration. Based on integrated analysis of microfossils,logging,seismic and outcrop, the classification and correlation of Silurian is studied. Firstly, the analysis of microfossils validate the existence of the Silurian. Secondly, the Silurian can be differentiated from Upper Deovonian Donghe Sandstone in terms of seismic stratigraphy and logging cross-sections analysis. Finally compared petrostratiphically with the outcrops of Keping area, the underground Silurian of Tahe Oilfield is ascertained to be the Middle Member of Lower Silurian Kepingtage Formation.
引文
方晓思.1989a.浙江唐家坞组的微古植物及其时代.地质论评.34(4):327~333.
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何圣策,尹磊明.1993.浙江江山晚奥陶世长坞组疑源类化石.古生物学报,32(5):612~633
江大勇,郝维城,白顺良,王新平,姚建新.2001.新疆塔里木盆地晚奥陶世—早石炭世地层划分对比研究新突破.北京大学学报(自然科学版),37(4):529~536.
李军,王怿.1997.塔里木盆地井下疑源类.微体古生物学报,14(2):175~190.
刘静江.1998.塔中45井泥盆纪鱼类化石的发现及东河砂岩的时代.新疆石油地质,19(2):149.
廖卫华.1995.论东河塘组的时代.新疆地质,13(3):195~201.
王俊卿.1997.新疆塔里木盆地膧甲鱼类化石发现的意义.地层学杂志,21(3):224~225.
王务严.1985.新疆志留系的划分对比.见:新疆地质局地质科学研究所编.新疆地质研究论文集.乌鲁木齐:新疆人民出版社,75~92.
夏树芳,陈云棠,张大良,王新平.1991.塔里木盆地北缘志留系与泥盆系分界问题的研究.见:贾润胥,主编.中国塔里木盆地北部油气地质研究(第一辑)地层沉积.武汉:中国地质大学出版社,57~63.
尹磊明,袁效奇,张吉森,傅智雁.1993.鄂尔多斯盆地西南缘东庄页岩的疑源类化石组合及地质年代.见:中国科学院南京地质古生物研究所现代古生物学和地层学开放研究实验室年报.南京:南京大学出版社,175~183.
赵治信,白顺良.1996.塔里木盆地泥盆—石炭系界线化学—生物地层学对比.见:岩石圈地质科学(四).北京:地质出版社,94~100.
周志毅.2001.塔里木盆地各纪地层.北京:科学出版社,39~169.
朱怀诚.1996.塔里木盆地西南缘晚泥盆世孢子的发现及其意义.地层学杂志,20(4):252~256.
朱怀诚,1998.塔里木盆地草2井东河砂岩段孢子组合的时代.微体古生物学报,15(4):395~403.
朱怀诚,张师本,罗辉,等.2000.塔里木盆地泥盆系—石炭系界线研究新进展.地层学杂志,24(增刊):370~372.
Cramer F H.1970.Distribution of selected Silurian acritarchs.Rev.Es-ponola Micropaleont.Num.Extraord.,1:1~203.
Fensome R A,Williams G L,Barss M S,Freeman J M,Hill M J.1990.Acritarchs and fossil prasinophytes:as index to genera,species andinfraspecific taxa.AASP Contribution Series Number25,AmericanAssociation of Stratigraphic Palynologists Foundation.
Le Herisse,A.1989.Acritarches et kystes dalgues Prasinophycees du Si-lurien de Gotland.Palaeontogr.It.,76:1~298.
Loeblish A R Jr,Tappan H.1978.Some Middle and Late Ordovician mi-crophytoplankton from Central North America.Jour.Paleont.,52(6):1233~1287.
Richarson J B,Ford J H,Parker F.1984.Miospore,correlation and age ofsome Scottish Lower Old Sandstone sediments from the Strathmoreregion(Fife and Angus).J.Micropalaeontol.,3:109~124.
Wicander R,Playford G,Roberston E B.1999.Stratigraphic and paleogeo-graphic significance of an Upper Ordovician acritarch flora from theMaquoketa shale,northeastern Missouri,USA.J.Paleontol.,73,Mem.52:1~38.
方晓思,1989b.四川江观音桥志留纪微体古植物.微体古生物学报.6(3):301~310.
高联达.1996.塔里木盆地北部草2井早石炭世晚期孢子的发现及其意义.中国区域地质,15(3):269~271.
何圣策,尹磊明.1993.浙江江山晚奥陶世长坞组疑源类化石.古生物学报,32(5):612~633
江大勇,郝维城,白顺良,王新平,姚建新.2001.新疆塔里木盆地晚奥陶世—早石炭世地层划分对比研究新突破.北京大学学报(自然科学版),37(4):529~536.
李军,王怿.1997.塔里木盆地井下疑源类.微体古生物学报,14(2):175~190.
刘静江.1998.塔中45井泥盆纪鱼类化石的发现及东河砂岩的时代.新疆石油地质,19(2):149.
廖卫华.1995.论东河塘组的时代.新疆地质,13(3):195~201.
王俊卿.1997.新疆塔里木盆地膧甲鱼类化石发现的意义.地层学杂志,21(3):224~225.
王务严.1985.新疆志留系的划分对比.见:新疆地质局地质科学研究所编.新疆地质研究论文集.乌鲁木齐:新疆人民出版社,75~92.
夏树芳,陈云棠,张大良,王新平.1991.塔里木盆地北缘志留系与泥盆系分界问题的研究.见:贾润胥,主编.中国塔里木盆地北部油气地质研究(第一辑)地层沉积.武汉:中国地质大学出版社,57~63.
尹磊明,袁效奇,张吉森,傅智雁.1993.鄂尔多斯盆地西南缘东庄页岩的疑源类化石组合及地质年代.见:中国科学院南京地质古生物研究所现代古生物学和地层学开放研究实验室年报.南京:南京大学出版社,175~183.
赵治信,白顺良.1996.塔里木盆地泥盆—石炭系界线化学—生物地层学对比.见:岩石圈地质科学(四).北京:地质出版社,94~100.
周志毅.2001.塔里木盆地各纪地层.北京:科学出版社,39~169.
朱怀诚.1996.塔里木盆地西南缘晚泥盆世孢子的发现及其意义.地层学杂志,20(4):252~256.
朱怀诚,1998.塔里木盆地草2井东河砂岩段孢子组合的时代.微体古生物学报,15(4):395~403.
朱怀诚,张师本,罗辉,等.2000.塔里木盆地泥盆系—石炭系界线研究新进展.地层学杂志,24(增刊):370~372.
Cramer F H.1970.Distribution of selected Silurian acritarchs.Rev.Es-ponola Micropaleont.Num.Extraord.,1:1~203.
Fensome R A,Williams G L,Barss M S,Freeman J M,Hill M J.1990.Acritarchs and fossil prasinophytes:as index to genera,species andinfraspecific taxa.AASP Contribution Series Number25,AmericanAssociation of Stratigraphic Palynologists Foundation.
Le Herisse,A.1989.Acritarches et kystes dalgues Prasinophycees du Si-lurien de Gotland.Palaeontogr.It.,76:1~298.
Loeblish A R Jr,Tappan H.1978.Some Middle and Late Ordovician mi-crophytoplankton from Central North America.Jour.Paleont.,52(6):1233~1287.
Richarson J B,Ford J H,Parker F.1984.Miospore,correlation and age ofsome Scottish Lower Old Sandstone sediments from the Strathmoreregion(Fife and Angus).J.Micropalaeontol.,3:109~124.
Wicander R,Playford G,Roberston E B.1999.Stratigraphic and paleogeo-graphic significance of an Upper Ordovician acritarch flora from theMaquoketa shale,northeastern Missouri,USA.J.Paleontol.,73,Mem.52:1~38.
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