| 加拿大Athabasca地区下白垩统McMurray组沉积特征分析 |
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| 引用本文： | 刘子玉,吕明.加拿大Athabasca地区下白垩统McMurray组沉积特征分析[J].四川地质学报,2012,32(1):1-5. |
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| 作者姓名： | 刘子玉 吕明 |
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| 作者单位： | 中海油研究总院,北京,100027 |
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| 摘 要： | 在前人研究基础上,通过钻井岩心描述和测井曲线对比,根据岩石学特征、沉积相标志、测井相标志等对加拿大Athabasca地区下白垩统McMurray组进行了沉积特征分析。McMurray组主要发育了河流相、三角洲相和滨海沉积,总体呈海平面相对上升变化。纵向上,中下部层序以河流相为主,沉积物多为来自盆地周边的近物源,以西部物源为主。短河流汇入盆地后可沿盆地长轴南北发育,成为北部区块的长物源。上部层序受西北方向海侵的影响,自北向南发育滨海-河口湾-三角洲相沉积。
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| 关 键 词： | McMurray组 油砂 沉积特征 Athabasca地区 |
Sedimentology of the Lower Cretaceous McMurray Formation in Athabasca, Canada |
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| LIU Zi-yu
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L Ming.Sedimentology of the Lower Cretaceous McMurray Formation in Athabasca, Canada[J].Acta Geologica Sichuan,2012,32(1):1-5. |
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| Authors: | LIU Zi-yu L Ming |
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| Institution: | LIU Zi-yu LO Ming ( Research Institute, CNOOC, Beijing 100027 ) |
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| Abstract: | This paper deals with sedimentary characteristics of the Lower Cretaceous McMurray Formation in Athabasca, Canada based on sedimentary petrology, sedimentary facies and logging data and previous study. Deposits of fluvial facies, delta facies and littoral facies were developed in the McMurray Formation, showing a relatively ascending eustacy. The middle and lower sequence in west is characterized by fluvial facies, while the upper is characterized by littoral-estuarine-delta facies, showing a southeastward transgression. |
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| Keywords: | McMurray Formation oil sand sedimentary characteristic Athabasca area |
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