ABSTRACT

This article presents a morpho-structural map at 1:50,000 scale of the confluence area between three regional units: (1) the Burgalesa Platform (Mesozoic; Cantabrian Mountains), (2) the Duero Basin and (3) the Ebro Basin (Cenozoic foreland basins). The map covers an area of 527 km2 in north Iberia. Additionally, structural lineaments such as joints are well preserved and documented in the Upper Cretaceous sediments of the Burgalesa Platform, represented by four main sets regarding their orientation. The foreland basins are incised in Miocene materials by rivers that have developed a complex drainage system controlling the deposition of the most recent alluvial sediments, following the four structural orientations. The map, together with the analysis of orthophotos and a Digital Terrain Model, and outcrop-scale observations, have led us to document the influence of the Miocene to present-day compression and strike-slip tectonic regime on the configuration of the drainage system and the geomorphological features.

摘要

本文介绍了三个区域单元之间的汇合区域比例为1：50,000的形态结构图：（1）Burgalesa平台（中生代；坎塔布连山脉），（2）Duero盆地和（3）Ebro盆地（新生代）前陆盆地）。该地图覆盖了伊比利亚北部的527平方公里。另外，在Burgalesa平台的上白垩统沉积物中，构造节理（例如节理）得到了很好的保存和记录，就其方向而言主要由四个主要集合表示。前陆盆地是由中新世的河流切割而成的，河流沿四个结构方向发展了复杂的排水系统，控制着最新的冲积沉积物的沉积。该地图以及正射影像和数字地形模型的分析以及露头规模的观测，