Tectono-sedimentary evolution within the Tremp, Ainsa and Jaca basins northern Spain

前陆盆地系统是复杂的、大规模的特征，对各种变量的相互作用作出反应。虽然伸展区域的模型已经很发达，但对于挤压活动占主导地位的区域，情况并非如此。特别是，这些系统内的渐变关系（即根据储层特征）知之甚少。因此，研究前陆系统内的构造和沉积过程具有深远的意义。始新世特朗普-潘普洛纳盆地由位于南比利牛斯前陆盆地内的特朗普盆地、Ainsa盆地和Jaca盆地三个相互连接的盆地组成。特朗普盆地以背驮式特征发育，而Ainsa和Jaca盆地则由前深（下始新世）发育为背驮式（上始新世）。这些盆地可能形成了一个由东向西（特朗普向雅卡）输运的相互联系的沉积体系，但三个盆地之间的直接联系和相关性尚不清楚。本研究的重点是通过定义一系列沉积层序来严格检查该地区的主要体系域，然后将这些沉积层序整合到层序地层模型中，该模型可以与盆地形成的控制机制有关，即与盆地所在岩石圈板块弯曲相关的区域沉降，以及次要控制因素，如当地水文，气候和海平面上升。

Foreland basin systems are complex, large-scale features that respond to interacting complexes of variables. While models for extensional areas are well developed, this is not the case for regions where compressional activity is predominant. In particular, fades relationships within such systems (i.e. in terms of reservoir characterization) is poorly understood. Thus, studies linking tectonic and sedimentation processes within foreland systems are of profound importance. The Eocene Tremp-Pamplona Basin consists of three interlinked basins - the Tremp, Ainsa and Jaca basins - which are located within the Southern Pyrenees Foreland Basin. The Tremp Basin developed as a piggyback feature, while the Ainsa and Jaca basins evolved from a foredeep (Lower Eocene) to a piggy back (Upper Eocene) setting. These basins possibly form an interlinked depostional system with sediment being transported from E to W (Tremp to Jaca), although direct linkage and correlation between the three basins is not clear. The focus of this study will be to critically examine the major systems tracts of the region by defining a series of depositional sequences which will then be integrated into a sequence stratigraphic model, which can be related to the controlling mechanisms on basin formation, namely, regional subsidence related to flexure of the lithospheric plate on which the basin is located, and secondary controls such as local Hthology, climate and eustatic sea level.