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

本文展示了三个区域单元之间汇合区比例为 1:50,000 的地貌结构图：(1) Burgalesa 地台（中生代；坎塔布连山脉），(2) 杜埃罗盆地和 (3) 埃布罗盆地（新生代）前陆盆地）。该地图覆盖了伊比利亚北部 527 平方公里的区域。此外，在 Burgalesa 平台的上白垩统沉积物中，节理等构造线得到了很好的保存和记录，以四个主要的方向为代表。前陆盆地是由河流在中新世材料中切割而成的，这些河流开发了一个复杂的排水系统，控制着最近的冲积沉积物的沉积，遵循四个结构方向。该地图连同对正射影像和数字地形模型的分析，以及露头尺度观测，