Central Helvetic Alps - Regional Thrust Architecture скачать в хорошем качестве

Central Helvetic Alps - Regional Thrust Architecture

This video presents the regional structural framework of the Central Helvetic Fold-and-Thrust Belt and brings its major thrust zones to life using the first fully 3D regional structural model built with cutting-edge open-source GIS tools. By integrating a high-resolution digital elevation model from the Federal Office of Swiss Topography and regional geological data, we reconstruct more than 300 km of the Helvetic Thrust system, from the Rawil Depression to the Rhine Valley Transfer Zone. The model captures the dominant first-stage deformation: large-scale, thin-skinned northward thrusting, during which Helvetic sediments were displaced by up to ~30 km and emplaced over the European foreland, forming the Helvetic Fold-and-Thrust Belt. Focusing on the sector in front of the Aar Massif, the model reveals how this initial nappe architecture was later modified by basement uplift, foreland thrusting, and nappe re-deformation. Based on this 3D framework, we propose a revised tectono-kinematic partitioning of the Central Helvetic Belt into two large, independently evolving thrust anticlinoria, separated and controlled by the Schwarzhorn Shear Zone. This overview sets the regional stage; detailed structural interpretations, outcrop examples, and step-by-step explanations of the 3D model are explored in the dedicated videos linked below.    / @schwandermarcus8752