冀东油田南堡凹陷奥陶系牙形石生物地层研究
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摘要
对采自冀东油田南堡凹陷探区南堡288井(N288)和西2井(X2)的25块碳酸盐岩样品进行牙形石分析,在13块样品中见到牙形石,3块样品中见到较多三叶虫颊刺,5块样品中见到较多腕足类化石。
本次样品处理后共见到牙形石6属11种,以及10个破碎的未定种,主要属种有:Eoplacognathus suecicus, Tripodus changshanensis, Scolopodus nogamii, S. opimus, S. restrictus, S. bassleri, Paltodus? parvus, Aurilobodus aurilobus, Drepanodus streblus, Oistodus sp., Baltoniodus sp., Panderodus sp., Tripodus sp., Acodina sp., Gnathodus sp., Idiognathodus sp.。对产出的牙形石分析后的结果认为,在该区可识别出2个牙形石组合带和1个牙形石组合,自下而上分别是:下奥陶统冶里组上部Scolopodus quadraplicatus-Scolopodus opimus组合带、中奥陶统下马家沟组下部Eoplacognathus suecicus-Acontiodus? linxiensis组合带和上奥陶统峰峰组下部Drepanodus streblus-Acodina sp.组合。对于其他的有化石产出但不满足划带要求的井段也进行了生物地层层位分析,并与国内外有关的地区进行了对比。
本文的研究结果丰富了前人在该区的牙形石生物地层研究,在本区已有牙形石带的基础之上,进一步细划了奥陶系牙形石生物地层。不仅修订了现有几个牙形石的采样层位,而且在西2井中划分出了上奥陶统峰峰组。另外,对南堡地区与我国华南、华北以及与北美中大陆生物地理区牙形石生物地层进行了更深层次的对比,建立了西2井奥陶系关键层段的岩电性和牙形石的对应关系,为该地区下古生界综合地层学的进一步研究提供了资料。
基于生物地层的对比结果,对研究区井下岩心的关键层段进行了细划和修正,以实例说明了在南堡凹陷仅仅根据岩性和电性划分出的下古生界岩石地层尚需进一步的系统的牙形石生物地层工作进行核实或修正。
Twenty-five carbonate samples were collected from NANPU-288 (N288) and XI-2 (X2) in Nanpu Depression of Jidong Oilfield. After the acidization of these samples, conodonts can be found in 13 samples. Moreover, there are some trilobite spines in 3 samples, some brachiopod chips in 5 samples.
Eleven species belong to 6 genus and 10 broken undecided species were identified, mostly include: Eoplacognathus suecicus, Tripodus changshanensis, Scolopodus nogamii, S. opimus, S. restrictus, S. bassleri, Paltodus? parvus, Aurilobodus aurilobus, Drepanodus streblus, Oistodus sp., Baltoniodus sp., Panderodus sp., Tripodus sp., Acodina sp., Gnathodus sp., Idiognathodus sp.. Based on the biostratigraphic research of the specimens, two conodont assemblage biozones and one conodont assemblage can be divided, in ascending order, they are: Scolopodus quadraplicatus-Scolopodus opimus assemblage zone in Yeli Formation of the Lower Ordovician, Eoplacognathus suecicus-Acontiodus? linxiensis assemblage zone at the Lower part of Lower Majiagou Formation of the Middle Ordovician, Drepanodus streblus-Acodina sp. assemblage at the Lower part of Fengfeng Formation of the Upper Ordovician. In this paper, Fengfeng Formation was divided in Well-X2 firstly. Some well intervals are hard to be divided into biozones, the biostratigraphical analysis is still carried out as well. The biostratigraphic correlation ship was built up between the research region and concerned domestic and oversea areas.
The study matures the research of the precursors, it bases on the given data and enriches the research of biostratigraphy in Nanpu depression. Besides, the study details the correlation between Nanpu depression and South China, North China as well as North American Mid-continent . Furthermore, the correspondence of lithology and electric log with conodont data at the key intervals of Well X2 was built up, which stores some material for the further research on integrated stratigraphy of the Lower Paleozoic at the researched area.Based on the biostratigraphic correlation, more detailed subdivision and revision were carried out in the researched area. The study shows that the division of the Ordovician Formations based on lithology and electric log is lack of evidence of sossils.
本次样品处理后共见到牙形石6属11种,以及10个破碎的未定种,主要属种有:Eoplacognathus suecicus, Tripodus changshanensis, Scolopodus nogamii, S. opimus, S. restrictus, S. bassleri, Paltodus? parvus, Aurilobodus aurilobus, Drepanodus streblus, Oistodus sp., Baltoniodus sp., Panderodus sp., Tripodus sp., Acodina sp., Gnathodus sp., Idiognathodus sp.。对产出的牙形石分析后的结果认为,在该区可识别出2个牙形石组合带和1个牙形石组合,自下而上分别是:下奥陶统冶里组上部Scolopodus quadraplicatus-Scolopodus opimus组合带、中奥陶统下马家沟组下部Eoplacognathus suecicus-Acontiodus? linxiensis组合带和上奥陶统峰峰组下部Drepanodus streblus-Acodina sp.组合。对于其他的有化石产出但不满足划带要求的井段也进行了生物地层层位分析,并与国内外有关的地区进行了对比。
本文的研究结果丰富了前人在该区的牙形石生物地层研究,在本区已有牙形石带的基础之上,进一步细划了奥陶系牙形石生物地层。不仅修订了现有几个牙形石的采样层位,而且在西2井中划分出了上奥陶统峰峰组。另外,对南堡地区与我国华南、华北以及与北美中大陆生物地理区牙形石生物地层进行了更深层次的对比,建立了西2井奥陶系关键层段的岩电性和牙形石的对应关系,为该地区下古生界综合地层学的进一步研究提供了资料。
基于生物地层的对比结果,对研究区井下岩心的关键层段进行了细划和修正,以实例说明了在南堡凹陷仅仅根据岩性和电性划分出的下古生界岩石地层尚需进一步的系统的牙形石生物地层工作进行核实或修正。
Twenty-five carbonate samples were collected from NANPU-288 (N288) and XI-2 (X2) in Nanpu Depression of Jidong Oilfield. After the acidization of these samples, conodonts can be found in 13 samples. Moreover, there are some trilobite spines in 3 samples, some brachiopod chips in 5 samples.
Eleven species belong to 6 genus and 10 broken undecided species were identified, mostly include: Eoplacognathus suecicus, Tripodus changshanensis, Scolopodus nogamii, S. opimus, S. restrictus, S. bassleri, Paltodus? parvus, Aurilobodus aurilobus, Drepanodus streblus, Oistodus sp., Baltoniodus sp., Panderodus sp., Tripodus sp., Acodina sp., Gnathodus sp., Idiognathodus sp.. Based on the biostratigraphic research of the specimens, two conodont assemblage biozones and one conodont assemblage can be divided, in ascending order, they are: Scolopodus quadraplicatus-Scolopodus opimus assemblage zone in Yeli Formation of the Lower Ordovician, Eoplacognathus suecicus-Acontiodus? linxiensis assemblage zone at the Lower part of Lower Majiagou Formation of the Middle Ordovician, Drepanodus streblus-Acodina sp. assemblage at the Lower part of Fengfeng Formation of the Upper Ordovician. In this paper, Fengfeng Formation was divided in Well-X2 firstly. Some well intervals are hard to be divided into biozones, the biostratigraphical analysis is still carried out as well. The biostratigraphic correlation ship was built up between the research region and concerned domestic and oversea areas.
The study matures the research of the precursors, it bases on the given data and enriches the research of biostratigraphy in Nanpu depression. Besides, the study details the correlation between Nanpu depression and South China, North China as well as North American Mid-continent . Furthermore, the correspondence of lithology and electric log with conodont data at the key intervals of Well X2 was built up, which stores some material for the further research on integrated stratigraphy of the Lower Paleozoic at the researched area.Based on the biostratigraphic correlation, more detailed subdivision and revision were carried out in the researched area. The study shows that the division of the Ordovician Formations based on lithology and electric log is lack of evidence of sossils.
引文
[1]安太庠,张放,向维达,等.华北及邻区牙形石.北京:科学出版社,1983,1-195,210-223
[2]王成源.牙形刺.北京:科学出版社,1987,1-419,441-453
[3]范忠保.古生物学中拉丁文学名的介绍,北京地质勘探学院,1958,1-15
[4]王成源,王志浩.牙形动物-中国牙形刺文献.中国科学院南京地质古生物研究所,1987,1-11
[5]南京大学地质系古生物地史学教研室.古生物学(上册).北京:地质出版社,1980,2-81
[6]南京大学地质系古生物地史学教研室.古生物学(下册).北京:地质出版社,1980,752-758
[7]刘本培,全秋琦,冯庆来,等.地史学教程.北京:地质出版社,1996,1-276
[8]陈建强,周洪瑞,王训练.沉积学及古地理学教程.北京:地质出版社,2004,1-253
[9]景秀春,王训练,王艳丽,等.冀东南堡凹陷上寒武统-中奥陶统牙形石生物地层研究.地球科学,2007,V9:1-9
[10]安太庠.中国南部早古生代牙形石.北京:北京大学出版社, 1987 ,16-83,92-96,116-196
[11]安太庠,杜国清,高琴琴.湖北奥陶系牙形石研究.北京:地质出版社, 1985,3-22,42-47
[12]安太庠,杜国清,高琴琴,等.湖北宜昌黄花场地区奥陶系牙形石生物地层.中国微体古生物学会第一次学术会议论文集.北京:科学出版社, 1981,105-113
[13]安太庠,张放,向维达,等.华北及邻区牙形石.北京:科学出版社, 1983,4-53,66-174
[14]安太庠,郑昭昌.鄂尔多斯盆地周缘的牙形石.北京:科学出版社, 1990,12-132,162-173
[15]董熙平,郝维城,王仁厚,等.辽河断陷东部晚寒武世至早奥陶世牙形石生物地层.微体古生物学报, 2001,18(3):219-226
[16]李建林,于志龙,吴清龙,等.地震资料精细解释技术在南堡凹陷的应用.石油地球物理勘探, 2006,41:29-32
[17]裴放,蔡淑华.河南省奥陶纪牙形石.武汉:武汉地质学院出版社, 1987,3-30,37-53,104-105
[18]王成源.下扬子地区牙形刺–生物地层与有机变质成熟度的指标.北京:科学出版社, 1993,16-48,155-213
[19]周海民,魏忠文,曹中宏,等.南堡凹陷的形成演化与油气的关系.石油与天然气地质, 2000,21 (4) : 345-3491
[20]石振荣,葛云龙,秦风启.南堡凹陷北部断裂特征动力学分析.断块油气藏, 2000 , 7 (4) : 1-41
[21]董熙平.华南寒武纪牙形石序列.中国科学(D辑), 1999,29(4):339-346
[22]徐安娜,郑红菊,董月霞,等.南堡凹陷东营组层序地层格架及沉积相预测[J ] .石油勘探与开发, 2006,33 (4) : 43-4431
[23]赵治信,张桂芝,肖继南.新疆古生代地层及牙形石.北京:石油工业出版社, 2000,1-49,187-232
[24]郑红菊,董月霞,王旭东,等.渤海湾盆地南堡富油气凹陷烃源岩的形成及其特征.天然气地质学, 2007,18(1):78-83
[25]周聘渭,刘敏.华北北部上寒武统-奥陶系牙形石颜色与有机质成熟度.河北地质学院学报, 1992,16(2):240-248
[26]《中国地层典》编委会(汪啸风,陈旭,陈孝红,等).中国地层典-奥陶系.北京:地质出版社, 1996,4-31
[27] Webby, B.D., Steps towards global standard for Ordovician stratigraphy. Newsletter of Stratigraphy, 1998. 36(1):1-33
[28] 2007,32,1-9An,T.X., Study on the Cambrian conodonts from North and Northeast China. Science Reports of the Institute of Geoscience University of Tsukuba, 1982.(3):113~159 Pls.1-17(in English).
[29] Cross. T. A., Lessenger, M. A. 1998. Sediment volume partitioning; rationale for stratigraphic model evaluation and high-resolution stratigraphic correlation, in F. M. Gradstein, K. O. Sandvik, and N.J.Milton, eds., Sequence Sequence Stratigraphy < Concepts and Applications:NPF Special Publication 8,p.171-195.
[30] J.F.Aitken and S.S.Flint,The application of High-resolution stratigraphy to Fluvial:a case study from the Upper Carboniferous Breathitt Group,eastern Kentucky,USA.Sedimentilogy,1995. 42,3-3
[31] Jervey M.T.Quantitative geological modeling of Siliciclastic rock sequences and their seismic expressions.In:Wilgus C K,et al.(eds),Sea-level changes:an integrated approach.SEPM Special Publication,1988. 42:47～69
[32] Miall A.D.Architectural-elementanalysis:a new method of facies applied tofluvial deposits.Earth Sci Rev,1985. 22:261～308
[33] Miall A.D.Basin analysis of fluvial sediments.In:Collinson J D,LewinJ(eds). Modern and ancient fluvia systems.Spec Publs Int Ass Sediment,1983. 6:279～286
[34] Miall A.D.The Geology of Fluvial Deposits.Springer,Berlin Heidelberg New York,1996S.D.Mackey and J.S.Bridge,Three-dimensional model of alluvial stratigraphy:theory and application.Journal of Sedimentary Research, 1995. 65(1),7-31
[35] Schumm S.A.Experimental study of channel patterns.Geol Soc Am Bull, 1972. 83:1755～1770
[36] Shanlley K.W,Alluvial architecture in a sequence stratigraphy frame-work. Journal of Geology,1994. 10(2):105～109
[37] Shanlley K.W,MeCabe P J.Respectives on the sequence stratigraphy ofcontinental strata.AAPGBulletin,1994. 78(4):544～568.
[38] Shanlley K.W,River response to base-level changes:Implication for sequencestratigraphy.Journal of Geology,1993. 101(3):279～294
[39] Sloss L.L.Stratigraphic models in exploration.Am Assoc Petrol GeolBull, 1962. 46:1050～1057.
[40] StevenLosh.Vertical and lateral fluid flow related to a large growth fault,So Eugene Island Block 330 Field,Offshore Louisia AAPGBulletin,1999. 83(2):244～276.
[41] Farrell K. M. Geomorphology, facies architecture, and high-resolution, non- marine sequence stratigraphy in avulsion deposits, Cumberland Marshes, Saskatchewan, Sedimentary Geology, 2001. 139:93-150
[42] Skelly,R.L.,Bristow,C.S.,Ethridge,F.G.Architecture of channel-belt deposits in an aggrading shallow sandbed braided river:the lower Niobrara River,northeast Nebraska. Sedimentary Geology, 2003. 158, 249-270.
[43] El-Mowafy,H.Z.3-D seismic fluvial architecture of the basal middle frio formation, Stratton and Agua Dulce fields,South Texas.Ph.D.dissertation,2003
[2]王成源.牙形刺.北京:科学出版社,1987,1-419,441-453
[3]范忠保.古生物学中拉丁文学名的介绍,北京地质勘探学院,1958,1-15
[4]王成源,王志浩.牙形动物-中国牙形刺文献.中国科学院南京地质古生物研究所,1987,1-11
[5]南京大学地质系古生物地史学教研室.古生物学(上册).北京:地质出版社,1980,2-81
[6]南京大学地质系古生物地史学教研室.古生物学(下册).北京:地质出版社,1980,752-758
[7]刘本培,全秋琦,冯庆来,等.地史学教程.北京:地质出版社,1996,1-276
[8]陈建强,周洪瑞,王训练.沉积学及古地理学教程.北京:地质出版社,2004,1-253
[9]景秀春,王训练,王艳丽,等.冀东南堡凹陷上寒武统-中奥陶统牙形石生物地层研究.地球科学,2007,V9:1-9
[10]安太庠.中国南部早古生代牙形石.北京:北京大学出版社, 1987 ,16-83,92-96,116-196
[11]安太庠,杜国清,高琴琴.湖北奥陶系牙形石研究.北京:地质出版社, 1985,3-22,42-47
[12]安太庠,杜国清,高琴琴,等.湖北宜昌黄花场地区奥陶系牙形石生物地层.中国微体古生物学会第一次学术会议论文集.北京:科学出版社, 1981,105-113
[13]安太庠,张放,向维达,等.华北及邻区牙形石.北京:科学出版社, 1983,4-53,66-174
[14]安太庠,郑昭昌.鄂尔多斯盆地周缘的牙形石.北京:科学出版社, 1990,12-132,162-173
[15]董熙平,郝维城,王仁厚,等.辽河断陷东部晚寒武世至早奥陶世牙形石生物地层.微体古生物学报, 2001,18(3):219-226
[16]李建林,于志龙,吴清龙,等.地震资料精细解释技术在南堡凹陷的应用.石油地球物理勘探, 2006,41:29-32
[17]裴放,蔡淑华.河南省奥陶纪牙形石.武汉:武汉地质学院出版社, 1987,3-30,37-53,104-105
[18]王成源.下扬子地区牙形刺–生物地层与有机变质成熟度的指标.北京:科学出版社, 1993,16-48,155-213
[19]周海民,魏忠文,曹中宏,等.南堡凹陷的形成演化与油气的关系.石油与天然气地质, 2000,21 (4) : 345-3491
[20]石振荣,葛云龙,秦风启.南堡凹陷北部断裂特征动力学分析.断块油气藏, 2000 , 7 (4) : 1-41
[21]董熙平.华南寒武纪牙形石序列.中国科学(D辑), 1999,29(4):339-346
[22]徐安娜,郑红菊,董月霞,等.南堡凹陷东营组层序地层格架及沉积相预测[J ] .石油勘探与开发, 2006,33 (4) : 43-4431
[23]赵治信,张桂芝,肖继南.新疆古生代地层及牙形石.北京:石油工业出版社, 2000,1-49,187-232
[24]郑红菊,董月霞,王旭东,等.渤海湾盆地南堡富油气凹陷烃源岩的形成及其特征.天然气地质学, 2007,18(1):78-83
[25]周聘渭,刘敏.华北北部上寒武统-奥陶系牙形石颜色与有机质成熟度.河北地质学院学报, 1992,16(2):240-248
[26]《中国地层典》编委会(汪啸风,陈旭,陈孝红,等).中国地层典-奥陶系.北京:地质出版社, 1996,4-31
[27] Webby, B.D., Steps towards global standard for Ordovician stratigraphy. Newsletter of Stratigraphy, 1998. 36(1):1-33
[28] 2007,32,1-9An,T.X., Study on the Cambrian conodonts from North and Northeast China. Science Reports of the Institute of Geoscience University of Tsukuba, 1982.(3):113~159 Pls.1-17(in English).
[29] Cross. T. A., Lessenger, M. A. 1998. Sediment volume partitioning; rationale for stratigraphic model evaluation and high-resolution stratigraphic correlation, in F. M. Gradstein, K. O. Sandvik, and N.J.Milton, eds., Sequence Sequence Stratigraphy < Concepts and Applications:NPF Special Publication 8,p.171-195.
[30] J.F.Aitken and S.S.Flint,The application of High-resolution stratigraphy to Fluvial:a case study from the Upper Carboniferous Breathitt Group,eastern Kentucky,USA.Sedimentilogy,1995. 42,3-3
[31] Jervey M.T.Quantitative geological modeling of Siliciclastic rock sequences and their seismic expressions.In:Wilgus C K,et al.(eds),Sea-level changes:an integrated approach.SEPM Special Publication,1988. 42:47～69
[32] Miall A.D.Architectural-elementanalysis:a new method of facies applied tofluvial deposits.Earth Sci Rev,1985. 22:261～308
[33] Miall A.D.Basin analysis of fluvial sediments.In:Collinson J D,LewinJ(eds). Modern and ancient fluvia systems.Spec Publs Int Ass Sediment,1983. 6:279～286
[34] Miall A.D.The Geology of Fluvial Deposits.Springer,Berlin Heidelberg New York,1996S.D.Mackey and J.S.Bridge,Three-dimensional model of alluvial stratigraphy:theory and application.Journal of Sedimentary Research, 1995. 65(1),7-31
[35] Schumm S.A.Experimental study of channel patterns.Geol Soc Am Bull, 1972. 83:1755～1770
[36] Shanlley K.W,Alluvial architecture in a sequence stratigraphy frame-work. Journal of Geology,1994. 10(2):105～109
[37] Shanlley K.W,MeCabe P J.Respectives on the sequence stratigraphy ofcontinental strata.AAPGBulletin,1994. 78(4):544～568.
[38] Shanlley K.W,River response to base-level changes:Implication for sequencestratigraphy.Journal of Geology,1993. 101(3):279～294
[39] Sloss L.L.Stratigraphic models in exploration.Am Assoc Petrol GeolBull, 1962. 46:1050～1057.
[40] StevenLosh.Vertical and lateral fluid flow related to a large growth fault,So Eugene Island Block 330 Field,Offshore Louisia AAPGBulletin,1999. 83(2):244～276.
[41] Farrell K. M. Geomorphology, facies architecture, and high-resolution, non- marine sequence stratigraphy in avulsion deposits, Cumberland Marshes, Saskatchewan, Sedimentary Geology, 2001. 139:93-150
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