Tectono-Stratigraphic evolution of the syn-rift system on and around the Frøya high, Mid-Norwegian continental margin
PhD candidate: Jhon M. Munoz-Barrera
Robert Gawthrope (UiB), Atle Rotevatn (UiB), Gijs Henstra (UiB)
2016 - 2019
AIMS AND OBJECTIVES
The aim of this work is to define the size, geometry and palaeogeographic evolution of the syn-rift event on and around the Frøya High during the late Jurassic. This aim will be achieved through the following set of objectives.
- To map the current structural configuration and associated depocentres of the study area
- To record displacement distribution associated with the faults and elucidate their evolution
- To undertake structural restoration in order to test the consistence of the structural model and to further investigate the evolution of the study area
- To identify the different syn-rift depositional systems and elements, and their spatial and temporal distributions in the syn-rift system during the late Jurassic.
- To investigate how the structural evolution controls the sediment routing and deposition, using the structural configuration mapped and its restoration.
- To rebuild the geometry and drainage system pattern of the sedimentary transport routes during the syn-rift episode
- To reconstruct the palaeotopography of the sediment source area
- To generate a volumetric balance between the sediment erodes from the source and the sediment accumulated in the sink
- To define the impact of the non-structural factor on the sediment supply and deposition
- To apply the results from the Frøya High to develop a tectono-sedimentary models for rift basins.
The Frøya High represents an excellent opportunity to evaluate a syn-rift episode using a whole context, from source-to-sink. During the late Jurassic, The Frøya High behaved as sediment source area for syn-rift basins in the surrounding Rås basin, Halten Terrace and Froan Basin. After that, the Frøya High was covered by Upper Cretaceous marine rocks, preserving the paleotopography of the source area, sedimentary routes and sink deposits. This work aims to define the size, geometry and palaeogeographic evolution of the synrift event on and around the Frøya High during the late Jurassic. The research will use six seismic cubes, 36 2D seismic lines and 51 wells. Seismic interpretation will be undertaken in Petrel software. Structural framework and fault evolution will be accomplished in Move software. Seismic geomorphology analysis will be generated in Petrel, GeoTeric and ArcGis software. Finally, in order to calculate the sediment volumes, a static model will be achieved in Petrel. The candidate will take five courses to complement his background. The results of the research will be presented at national and international conferences, either as a poster or oral presentations. The principal advisors for this project are Professor Dr. Robert Gawthorpe and Professor Dr. Atle Rotevatn. Additionally, Dr. Gijs Henstra will be a co-advisor. Three papers are proposed as result of this work. 1) structural framework and evolution of the Frøya High. 2) seismic geomorphology, seismic characterization, stratigraphy and sedimentology of the Upper Jurassic syn-rift sequences on and around the Frøya High. 3) source-to-sink analysis of the late Jurassic syn-rift on and around the Frøya High.