Rollback orogeny model for the evolution of the Swiss Alps

Kissling, Edi; Schlunegger, Fritz (2018). Rollback orogeny model for the evolution of the Swiss Alps. Tectonics, 37(4), pp. 1097-1115. American Geophysical Union, European Geophysical Society 10.1002/2017TC004762

[img]
Preview
Text
Kissling_et_al-2017-Tectonics.pdf - Published Version
Available under License Creative Commons: Attribution-Noncommercial-No Derivative Works (CC-BY-NC-ND).

Download (12MB) | Preview

The construction of the European Alps and the Himalayas has been related to the convergence and subsequent collision of two continental plates. Nearly all models of orogeny build on this concept, and all of them relate the stacking of nappes and the build up of topography to compressional forces at work in response to the collision between two continental plates. For the Central European Alps, however, these models fail to explain the first order observations of a mountain belt, which particularly includes the striking isostatic imbalance between the low surface topography and the thick crust beneath the Alps. Here, we review and synthesize data on the geologic architecture of the Central Alps, the chronology and pattern of crustal deformation, and information about the deep crustal structure derived from seismic tomography. Furthermore, we discuss the intrinsic and explicit assumptions in the kinematic models of Alpine evolution in the context of plate tectonic considerations. We combine these views with progress in understanding that has been gained through subduction and collision isostatic mass and force balancing, and with information that has been collected on the modern seismic regime. We conclude that a rollback orogeny model for the European plate offers the most suitable concept to explain the ensemble of surface and deep lithosphere observations. In this model gravity forces drive the evolution of the orogen and the construction of surface topography is accomplished without the requirement of a hard collision between two continents.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geological Sciences

UniBE Contributor:

Schlunegger, Fritz

Subjects:

500 Science > 550 Earth sciences & geology

ISSN:

0278-7407

Publisher:

American Geophysical Union, European Geophysical Society

Language:

English

Submitter:

Fritz Schlunegger

Date Deposited:

09 May 2018 11:15

Last Modified:

24 Oct 2019 15:46

Publisher DOI:

10.1002/2017TC004762

BORIS DOI:

10.7892/boris.113826

URI:

https://boris.unibe.ch/id/eprint/113826

Actions (login required)

Edit item Edit item
Provide Feedback