Understanding the structure and tectonic evolution of any region is key to assessing hydrocarbon prospectivity, because it dictates a multitude of factors: from heat-flow, to the geometry and timing of accommodation space, to trap type and activity. At Getech we can combine our expertise in geophysics, structural geology and tectonics to provide a unique skillset with which to better define and assess the exploration significance of the Earth’s structural and tectonic history.
The Structure and Tectonics Teams at Getech work closely with our geophysicists, to provide new ventures explorationists with tools and solutions with which to better understand the structural and tectonic evolution of any area in the world. This integrates many scales and disciplines including the following: structural analysis; restoration modelling; interpretation geophysics; geodynamics, and plate modelling. The results include Getech’s Globe databases: 1:1M (high resolution) Structural database with linked activation history table; Crustal Architecture database, including our new classification of transitional crust, global depth-to-basement and our Global Plate Model. These then underpin our Palaeogeographic and Petroleum Geology work.
One objective is to assess the impact of inherited rheological variation on the type of deformation, the structural geometries and crustal types, and resultant accommodation space and basin fill.
To do this Getech:
- Carry out detailed geological mapping (including structures, digital geology, igneous features, sedimentary features, basins, and intra-basinal features) basins and intra-basinal features, using Getech’s extensive experience and databases in Structural Geology and Potential Fields Geophysics.
- Carry out comprehensive crustal architecture analysis and investigations, including 2D gravity and magnetic profiles, depth to basement, depth to Moho, crustal thickness, sedimentary thickness and beta factor maps.
- Use the results of (1) and (2) to map the spatial distribution of crustal types across the AOI and consider the implications on accommodation space and basin fill, highlighting implications for petroleum systems.
- Integrate the results of (1), (2) and (3) into plate modelling experiments to compile a scientifically detailed, robust, and rigorously tested plate modelling solution to identify the best dynamic fit and evolution of the area.
A recent highlight from work being carried out by our Structural Teams is the implementation of the latest scientific research regarding obliquely rifted margins, passive margins and transform margin development, made possible by high-resolution full-crustal imaging. This work has been critical for understanding the regional crustal framework, and its implications for petroleum system development and new exploration plays.
In addition, our structural geologists are active participants in the Basin Structure Group at the University of Leeds, which provides a dynamic forum for the exchange of ideas and the latest academic research.