One of the principal aims of Globe is to provide explorationists with a digital library of fundamental geological datasets that can be then used to develop a better understanding of the petroleum geology and hydrocarbon prospectivity of any region of the world. These datasets are being built from scratch, and each one includes a complete audit trail that gives the user an immediate assessment of data confidence and provenance. They are continually being updated and revised as our data teams and geoscientists assess and harvest new incoming literature for key information.
Getech’s geological interpretation databases are part of a series of foundation datasets that include, but are not restricted to, the following: Getech’s Stratigraphy database; Global Structural Elements (1:1M and 1:10M scales); Global Igneous Features; Global Carbonates; Global Metamorphics; Global Ophiolites; Global Surface Geology; Global Sedimentary Features; Global Salt bodies, and Global Palaeo-current Azimuth. These are supported by our primary data, include our databases of line data, and are in turn used for a multitude of tasks, including to:
- Provide input for building our palaeogeographic and structural interpretations (including our crustal architecture and plate models).
- Provide constraints on conclusions thereby providing users with an assessment of the confidence with which features are reconstructed.
- Test Earth System Model results with observational (primary) data.
- Test the results of the lithofacies prediction.
- Give our geophysicists better controls on establishing depth to basement estimates and to identify specific horizons and depths relating to identified gravity and magnetic anomalies.
1:1M Structural Elements Database
A global database of Structural and Tectonic Elements, built from primary data (gravity, magnetics, seismic, well, radar, landsat and surface geology) with a comprehensive attribution.
The database is linked to an Activation Table, which traces the kinematic and activity history of all features where such information can be obtained. The principle compilation scale is between 1:500,000 and 1:1M, although the database does include much higher resolution data (specified in the attribute table) up to 1:50,000 scale.
1:10M Structural Elements Database
The 1:10M scale Structural and Tectonics Elements database was originally built for use with the first generation 1:20M scale Global Palaeogeography Atlases. Since then it has been expanded to include its own activation table and more comprehensive attribution.
Igneous Features Database
This is in the form of lines and polygons. Dykes are represented by lines and all other igneous features are represented by polygons whether it is a large igneous province or intrusive. The initial extent and age information is primarily derived from references; the feature is then modified using Getech’s in-house gravity and magnetic derivatives, as well as bathymetric data.
The carbonates feature class allows the user to spatially view the different carbonate systems that have been present throughout time on a global scale. The database also contains information on lithology and depositional setting, as well as any porosity and permeability values which have wider implications, not just for mapping but for identifying potential petroleum systems.
The Metamorphics database consists of both points and polygons. The points are derived from a third party dataset and the polygons are generated by Getech to then show the full extent of the metamorphic rock.
The ophiolites polygons show the distribution of the features globally and includes information on age and environment.
The lines features include the extent of turbidites, fan lobes and deltas globally, through time.
This is a polygon representing the different types of salt bodies once they have be subjected to halokinesis. The database can identify different types of geometries observed in allochthonous salt (diapirs, canopies and rafts).
This is a collection of Palaeo-currents directions whether it be marine (turbidites), fluvial channels or aeolian.
Stage-level digital maps at 1:20M and 1:5M scales. Now supported by additional stratigraphic databases, knowledgebases and digital scrapbooks. Further information is available on the Palaeogeography Page and under Globe.