赵宗举,赵治信,黄智斌

• 1:中国石油塔里木油田分公司
• 2:中国石油塔里木油田分公司
• 3:中国石油塔里木油田分公司 新疆库尔勒841000中国石油勘探开发研究院杭州地质研究所浙江杭州310023
• 4:新疆库尔勒841000

摘要(Abstract)：

通过对塔里木盆地西部柯坪、巴楚及东部却尔却克奥陶系露头剖面及盆地覆盖区钻井岩心的大量牙形石样品分析,分别建立了塔里木盆地中西部及东部地区奥陶系牙形石带序列。盆地中西部地区牙形石带共计22个,由老到新分别为Variabiloconusaff.bassleri带、Rossodusmanitouensis-Cordylodusrotundatus-Chosonodinaherfurthi组合带、Scolopodusquadraplicatus带、Glyptoconusfloweri带、Tripodusproteus/Paltodusdeltifer带、Glyptoconusunicostatus带、Serratognathusdiversus/Paroistodusproteus带、Serratognathoideschuxianensis-Scolopoduseuspinus-Erraticodontarimensis组合带、Aurilobodusleptosomatus-Loxodusdissectus组合带、Amorphognathusvariabilis带、Eoplacognathussuecicus带、Pygodusserrus带、Pygodusanserinus带、Eoplacognathusjianyeensis/Baltoniodusva-riabilis带、Eoplacognathuselongatus带、Baltoniodusalobatus带、Belodinacompressa/Periodongrandis带、Phrag-modusundatus带、Belodinaconfluens带、Yaoxianognathusneimengguensis带、Yaoxianognathusyaoxianensis带和Aphelognathuspyramidalis带;盆地东部地区下奥陶统属于深水盆地相,其特有的牙形石带主要有5个,由老到新分别为Cordyloduslindstromi带、Cordylodusangulatus带、Prioniodusgilberti带、Paroistodusproteus带和Prionio-duselegans带。同时初步建立了塔里木盆地奥陶系三级层序地层格架,并探讨了上述牙形石带与盆地奥陶系主要构造单元岩石地层单位以及全盆地可对比的6个三级层序之间的关系。

关键词(KeyWords)： 奥陶系;牙形石;生物地层;层序地层;岩石地层单位;塔里木盆地;新疆

Abstract:

Keywords:

基金项目(Foundation): 中国石油塔里木油田分公司博士后科研项目(TLM0401);; 中国石油天然气股份有限公司科技项目(20536)资助

作者(Author): 赵宗举,赵治信,黄智斌

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