Preprints
https://doi.org/10.5194/gmd-2020-336
https://doi.org/10.5194/gmd-2020-336

Submitted as: development and technical paper 16 Dec 2020

Submitted as: development and technical paper | 16 Dec 2020

Review status: a revised version of this preprint is currently under review for the journal GMD.

LoopStructural 1.0: Time aware geological modelling

Lachlan Grose1, Laurent Ailleres1, Gautier Laurent2, and Mark Jessell3 Lachlan Grose et al.
  • 1School of Earth Atmosphere and Environment, Monash University, Melbourne 3800, Australia
  • 2Université d'Orléans, CNRS, BRGM, ISTO, UMR 7327, Orleans France
  • 3Mineral Exploration Cooperative Research Centre, School of Earth Sciences, UWA, Perth, Australia

Abstract. In this contribution we introduce LoopStructural, a new open source 3D geological modelling python package ( https://www.github.com/Loop3d/LoopStructural). LoopStructural provides a generic API for 3D geological modelling applications harnessing the core python scientific libraries pandas, numpy and scipy. Six different interpolation algorithms, including 3 discrete interpolators and 3 polynomial trend interpolators, can be used from the same model design. This means that different interpolation algorithms can be mixed and matched within a geological model allowing for different geological objects e.g. different conformable foliations, fault surfaces, unconformities to be modelled using different algorithms. Geological features are incorporated into the model using a time-aware approach, where the most recent features are modelled first and used to constrain the geometries of the older features. For example, we use a fault frame for characterising the geometry of the fault surface and apply each fault sequentially to the faulted surfaces. In this contribution we use LoopStructural to produce synthetic proof of concepts models and a 86 x 52 km model of the Flinders ranges in South Australia using map2loop.

Lachlan Grose et al.

 
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Lachlan Grose et al.

Lachlan Grose et al.

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Short summary
LoopStructural is an open-source 3D geological modelling library with the model design allowing for multiple different algorithms to be used for comparison for the same geology. Geological structures are modelled using structural geology concepts and techniques allowing for complex structures such as overprinted folds and faults to be modelled. In the paper, we demonstrate automatically generating a 3D model from map2loop processed geological survey data of the Flinders Ranges, South Australia.