3D modeling of the Ashanti Belt, southwest Ghana: Evidence for a litho-stratigraphic control on gold occurrences within the Birimian Sefwi Group
A three-dimensional model of the gold-rich Paleoproterozoic Ashanti Greenstone Belt has
been built with a “hybrid” geological modeling method using Geomodeller and Gocad, then …
been built with a “hybrid” geological modeling method using Geomodeller and Gocad, then …
Deformation of crust and upper mantle in central Tibet caused by the northward subduction and slab tearing of the Indian lithosphere: New evidence based on shear …
Shear-wave splitting provides insight into geodynamic processes such as lithospheric
deformation and upper mantle flow. This study presents shear wave splitting parameters …
deformation and upper mantle flow. This study presents shear wave splitting parameters …
Next generation three-dimensional geologic modeling and inversion
Abstract Existing three-dimensional (3-D) geologic systems are well adapted to high data-
density environments, such as at the mine scale where abundant drill core exists, or in …
density environments, such as at the mine scale where abundant drill core exists, or in …
Fast 3‐D large‐scale gravity and magnetic modeling using unstructured grids and an adaptive multilevel fast multipole method
Z Ren, J Tang, T Kalscheuer… - Journal of Geophysical …, 2017 - Wiley Online Library
A novel fast and accurate algorithm is developed for large‐scale 3‐D gravity and magnetic
modeling problems. An unstructured grid discretization is used to approximate sources with …
modeling problems. An unstructured grid discretization is used to approximate sources with …
[HTML][HTML] Automated geological map deconstruction for 3D model construction using map2loop 1.0 and map2model 1.0
At a regional scale, the best predictor for the 3D geology of the near-subsurface is often the
information contained in a geological map. One challenge we face is the difficulty in …
information contained in a geological map. One challenge we face is the difficulty in …
Uncertainty analysis of 3D potential-field deterministic inversion using mixed Lp norms
The nonuniqueness problem in geophysical inversion, especially potential-field inversion, is
widely recognized. It is argued that uncertainty analysis of a recovered model should be as …
widely recognized. It is argued that uncertainty analysis of a recovered model should be as …
[HTML][HTML] Disjoint interval bound constraints using the alternating direction method of multipliers for geologically constrained inversion: Application to gravity data
To reduce uncertainties in reconstructed images, geologic information must be introduced in
a numerically robust and stable way during the geophysical data inversion procedure. In the …
a numerically robust and stable way during the geophysical data inversion procedure. In the …
[HTML][HTML] Structural, petrophysical, and geological constraints in potential field inversion using the Tomofast-x v1. 0 open-source code
The quantitative integration of geophysical measurements with data and information from
other disciplines is becoming increasingly important in answering the challenges of …
other disciplines is becoming increasingly important in answering the challenges of …
[HTML][HTML] Integration of geoscientific uncertainty into geophysical inversion by means of local gradient regularization
We introduce a workflow integrating geological modelling uncertainty information to
constrain gravity inversions. We test and apply this approach to the Yerrida Basin (Western …
constrain gravity inversions. We test and apply this approach to the Yerrida Basin (Western …
Sensitivity of constrained joint inversions to geological and petrophysical input data uncertainties with posterior geological analysis
The integration of petrophysical data and probabilistic geological modelling in geophysical
joint inversion is a powerful tool to solve exploration challenges. Models obtained from …
joint inversion is a powerful tool to solve exploration challenges. Models obtained from …