The study of the Cordillera de Domeyko and the Salar de Atacama Basin in northern Chile has been critical to understand the generation of the Andean Cordillera and the migration of the deformation front eastwards. However, the relation between the uplift of the range, its temporal pattern, and the formation of the Preandean Depression have not been fully understood. In this article, we forward modeled two gravimetry surveys, consisting in 185 stations crossing the boundary between the Salar de Atacama Basin and Cordillera de Domeyko, with the goal of understanding the physical traits of each domain and the variations in basin geometry. We interpreted two seismic reflection profiles, along with log data from one well in the basin center, and additionally, we analyzed an inversion of the magnetic anomaly for both lines. The results of the analysis show the segmentation of physical properties into two domains. The first is interpreted as basement (Triassic-older) units, while the other shows the presence of gravity lows correlated with late Mesozoic-Cenozoic units cropping out along the western edge of the basin. The magnetic anomalies identified were correlated with variations within the basement and outcrops of crystalline intrusives. Within the sedimentary units, the Late Cretaceous-Paleogene Purilactis Group and Paleogene-Eocene formations were distinguished from the evaporite-rich Oligocene-Miocene Paciencia Group. The latter was deposited after a compressive event (Incaic Event) which thrusted basement units eastwards, inverted Mesozoic extensional faults, and generated the accommodation space required for its deposition. The basin then experienced renewed compression during the Miocene. This interplay between basement uplift and thrusting, along with fault inversion and basin generation, is a characteristic found in other parts of the Salar de Atacama Basin and the orogen, suggesting that this tectonic style might be prevalent in other basins comprising the Preandean Depression and along the Central Andes.

对智利北部的科迪勒拉·德·多梅科和萨勒德·阿塔卡马盆地的研究对于了解安第斯山脉的生成和变形锋向东的迁移至关重要。但是，该范围的上升，其时间模式和早安凹陷的形成之间的关系还没有被完全理解。在本文中，我们对两个重力测量调查进行了建模，其中包括185个站，这些站跨越了Salar de Atacama盆地和Cordillera de Domeyko之间的边界，目的是了解每个区域的物理特征和盆地几何形状的变化。我们解释了两个地震反射剖面以及盆地中心一口井的测井数据，此外，我们还分析了两条线的磁异常的反演。分析结果表明，物理特性分为两个领域。第一个被解释为基底（三叠纪更旧的）单元，而另一个则显示出重力低谷的存在与盆地中西缘的晚中生代-新生代单元有关。识别出的磁异常与晶体侵入体的基底和露头内的变化相关。在沉积单元内，晚白垩世-古近纪Purilactis组和古近纪-始新世地层与富蒸发岩的渐新世-中新世古代组群区分开。后者是在一次压缩事件（印加事件）之后沉积的，该事件使基底单元向东推进，使中生代伸展断层倒转，并产生了沉积所需的容纳空间。然后在中新世时期，盆地经历了新的压缩。基底隆起和逆冲作用之间的相互作用，以及断层反演和盆地生成，是萨拉特阿塔卡马盆地其他地区和造山带中的一个特征，这表明这种构造样式可能在包括早安山低压和沿岸的其他盆地中普遍存在。中央安第斯山脉。