Geological framework models constructed in GSI3D have many and varied uses because they define
the spatial distribution of rock types, soil or other layers and properties in the subsurface. To date these applications have included:
- Aggregate resource evaluation
- Archaeological studies
- Contaminated land investigation
- Education and outreach
- Environmental Earth Systems science
- Flood risk management
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- Geological research
- Ground conditions and site investigation
- Groundwater management, aquifer recharge and protection
- Soil science
- Urban and infrastructure planning
- Waste disposal
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"Of what materials is the earth composed, and in what manner are these materials arranged?"
Charles Lyell, Elements of Geology, 1838
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GSI3D allows you to construct your 3D framework model by leveraging the traditional
methods of the geologist: maps and cross sections.
Maps can be imported
from existing map files or digitised
within the software by hand, or by using:
- map scans
- field slips
- aerial and satellite imagery
- correlated extent in the cross sections
A network of user-defined cross sections is built up, in conjunction
with the map data, to construct a full geological interpretation of
the project area. Sections can be constructed along any line of
profile, or by correlating between available borehole data as required.
Technical data.
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Traditional geological paper map
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East Anglia (UK) network of correlated sections in 3D view
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The minimum data required for modelling is:
- an elevation or terrain model for the project area
- a simple user-defined generalised vertical section (GVS) which lists the sequence of rock units or horizons for the model in stratigraphical order
Beyond this basic information, the geoscientist is free to draw whatever map
and section interpretations they need to characterise the subsurface within
the model area.
Models can be built from site to regional scale and to any level of detail required, from just a handful
of correlated sections characterising one horizon, right up to 100+ sections
depicting many different horizons.
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From this information, GSI3D can calculate non-faulted
framework models via a single button click
with no complex settings or configuration. The calculated model can then
be queried and analysed via synthetic borehole, synthetic cross section
and synthetic horizontal slice prognosis tools.
The calculated model can
also be published and delivered to customers via
a range of different output formats.
Geological cross section by William Smith, early 1800s
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Calculated East Anglia (UK) 3D model based on maps and sections
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UK models, from the left: Shelford (soils plus geology), Chichester, London (bedrock and superficial), York
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