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地质科学  2011, Vol. 46 Issue (02): 445-455    DOI:
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塔里木盆地肖尔布拉克上震旦统苏盖特布拉克组层序界面与沉积相
钱一雄1|2 尤东华1 陈代钊3 陈跃1|2 姜海健1 刘忠宝2
1.中国石化石油勘探开发研究院无锡石油地质研究所 江苏无锡 214151;2.中国石化石油勘探开发研究院西部勘探中心 乌鲁木齐 830011;3.中国科学院地质与地球物理研究所 北京 100029
The stratigraphic and sedimentation analysis of Sugaitbulak Formation of the Upper Sinian at Xianerbulak of Aksu in Tarim Basin
Qian Yixiong1,2 You Donghua1 Chen Daizhao3 Chen Yue1,2 Jiang Haijian1 Liu Zhongbao2
1.Wuxi Institute, Exploration &|Production Research Institute, SINOPEC, Wuxi, Jiangsu 214151;2.Northwest Institute, Exploration &|Production Research Institute, SINOPEC, UrUmqi 830011;3.Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029
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摘要 震旦纪是塔里木盆地被动大陆边缘盆地重要发育期。通过对阿克苏肖尔布拉克剖面中的上震旦统苏盖特布拉克组实测工作,利用层序地层学和沉积相分析方法,提出了苏盖特布拉克组发育了海侵不整合、陆上暴露不整合和隆升侵蚀不整合面等Ⅱ—Ⅲ(Ⅳ)层序界面成因类型; 揭示了下亚段(潮坪)滨岸—浅海沉积体系中的潮间—潮上、滨岸沙丘、风暴等沉积; 上亚段浅海—陆架(碎屑陆棚)体系中的潮道—外滨、浅水陆棚沉积; 下亚段发育了玄武岩墙、上亚段夹有酸性火山岩; 上述沉积建造与火山活动反映了被动大陆边缘盆地裂陷早中期发育的特征。
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关键词沉积相 沉积体积 层序界面 苏盖特布拉克组 上震旦统 柯枰     
Abstract: Sinian is one of the most important stage of development of passive continental margin basin in Tarim Basin.Based on the measurement and analysis of section of Sugaitbulak Fm.(Z2s)of the Upper Sinian at Xianerbulak of Aksu with regarded to lithofacies,sequence stratigraphy and facies succession fabric features and the orderly stacking patterns,The upliftcorrosion unconformity in the lower,transgressive onlap unconformity between upper and lower section and exposure meteoricformation and facies changecorrelative conformity on the top of Sugaitbulak Fm.(Z2s)have been identified as Ⅱ to Ⅲ(Ⅳ)sequence boundary surfaces.The sedimentation environment of Sugaitbulak Fm.(Z2s)is believed to the coastal to shore to open shalframp and slope clastic system,The lower section of Sugaitbulak Fm.consists of the tidalflat,shoredune,shore and foreshore and outer upper shore sedimentation; while the upper the nearshore,tidal channelouter shore and open shalframp and slope sedimentation; The terrestrial eruption of the basaltrhyolite and tuff,which are used to interpolation of diabase dyke,suggested as the continental breakup product in the development of passive continental margin basin of the Sinian to the early Palaeozoic stage.
Key wordsSedimentary facies, Sequence boundary, Facies succession, Sugaitbulak Fm., The Upper Sinian, Tarim Basin   
收稿日期: 2010-10-30; 出版日期: 2011-04-25
基金资助:

国家科技专项(编号:2008ZX05005-002-001)和国家重点基础研究发展计划“973”项目(编号:2005CB22100)资助。

引用本文:   
. 2011, 塔里木盆地肖尔布拉克上震旦统苏盖特布拉克组层序界面与沉积相. 地质科学, 46(02): 445-455.
. The stratigraphic and sedimentation analysis of Sugaitbulak Formation of the Upper Sinian at Xianerbulak of Aksu in Tarim Basin[J]. Chinese Journal of Geology, 2011, 46(02): 445-455.
 
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