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首页> 外文期刊>Journal of Iberian geology >El Pliensbachiense de la Rama Aragonesa de la Cordillera Ibérica: Análisis de facies y establecimiento de secuencias
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El Pliensbachiense de la Rama Aragonesa de la Cordillera Ibérica: Análisis de facies y establecimiento de secuencias

机译：伊比利亚山脉阿拉贡分支的Pliensbachiense：相分析和序列的建立

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The Pliensbachian of the Aragonese branch of the Iberian Chain is represented by Almonacid de la Cuba, Cerro del Pez and Barahona formations. These sediments are constituted by marls and limestone organized in shallowingupward sequences. All of them are represented in the lower part by marls and mudstone that change to wackestone and packstone. The top of the sequence is a ferruginous crust, generally bioturbated. This represents the decrease in the sedimentation velocity and a shallowing event. The sediments were deposited in a carbonate ramp, changing from middle to outer environments. The most shallowing facies were located in the south, where there is an evidence of the developing of reefal facies. The deeper facies were deposited in the north, corresponding to open environments. This work shows the correlation of six thirdorder shallowing upward sequences in the Pliensbachian sediments. The origin of these sequences is related to sea level oscillations and conditioned by autocyclic processes.
机译：伊比利亚链的阿拉贡分支的Pliensbachian以Almonacid de la Cuba，Cerro del Pez和Barahona地层为代表。这些沉积物是由泥灰岩和石灰石按浅浅向上的顺序组织的。所有这些在下部都以泥灰岩和泥岩为代表，这些泥岩和泥岩变成了瓦克石和泥岩。序列的顶部是铁皮，通常经过生物扰动。这表示沉降速度的降低和浅水事件。沉积物沉积在碳酸盐岩坡道中，从中部环境变为外部环境。最浅的相位于南部，那里有礁相发育的证据。较深的相沉积在北部，对应于开放的环境。这项工作表明了普林斯巴赫沉积物中六个三阶浅层向上序列的相关性。这些序列的起源与海平面振荡有关，并受自循环过程调节。

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