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: Priority Programme Mountain Building Process in Four Dimensions (4D-MB) (SPP 2017)

Termin:
30.09.2019
Fördergeber:
Deutsche Forschungsgemeinschaft (DFG)
The Senate of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) established the Priority Programme Mountain Building Process in Four Dimensions (4D-MB) (SPP 2017) in 2016. The programme is designed to run for six years. The present call invites proposals for the second three-year funding period (2020 2023).

Scope: This Priority Programme forms an integral part of the international AlpArray mission to image the structure of the Alps from their surface down to several hundred kilometers depth in the mantle. It tests the hypothesis that reorganisations of Earth s mantle during the collision of tectonic plates have both immediate and long-lasting effects on crustal motion, fault kinematics, earthquake distribution and surface evolution. It challenges conventional wisdom by recognising that linked processes between Earth s surface and mantle beneath mountain belts can only be explained by integrating 3D imaging of the entire crust-mantle system with geologic observations and modelling to enable us to look both backwards and forwards in time, the 4th dimension. This requires a multi- and interdisciplinary approach that integrates geophysics, tectonics, petrology, geochronology, basin- and surface studies.

Proposals are invited for two research themes:

Theme 1: Reorganisations of the lithosphere during mountain building will help to understand how the present shape of lithospheric slabs were born and their shape changed in time and space. The detailed view of these deep structures afforded by innovative geophysical methods can yield fresh insight into the structure and rheology of the lithosphere, especially as they relate to the response of the surface to changes of lithospheric structure (Theme 2). This theme will resolve the question of whether deep structure preserves early stages of mountain-building (subduction, collision) or primarily reflects the imprint of later events (indentation, lateral escape). Determining this will constrain rates of structural change in the crust and mantle, and help us understand how subducted continental and oceanic lithosphere are preserved during exhumation to the surface.

Theme 2: Surface and crustal responses to changes in mountain structure on different time scales will shed new light on the debate over the competition of climate and tectonics during mountain building. It will take on the challenge of distinguishing the effects of deep-seated events (including slab-tearing, -breakoff and polarity reversal, Theme 1) and surface processes (e.g., climate change, glaciation) on erosion patterns, uplift rates, and basin sedimentation. Identifying spatial and temporal patterns of faulting and seismicity will provide an overall motion picture from the present back in time. It will help us understand whether earthquakes, fault and ground motion are related to the current tectonic regime of the Alps or if a new pattern is being established in response to today s kinematics.

Priority Programme colloquium: A meeting to present, discuss and coordinate research proposals will be held at the Seminaris Campus Hotel in Berlin on the 4/5 June 2019 (details to be announced on the programmes s website). Potential applicants are expected to make a concise (5 minutes, 3 slides) presentation of their proposal at this meeting. Please register for the meeting by the 1 May 2019 with emanuel.kaestle@fu-berlin.de.

Further information:
http://www.dfg.de/foerderung/info_wissenschaft/info_wissenschaft_19_16/index.html