Joint stochastic modeling of alteration halos and geological structures using a multicomponent skeleton-based approach

@inproceedings{marchal_joint_RM2023,
 abstract = {Deposits linked to hydrothermal processes display mineral and chemical zonation or halos. These halos are commonly used to target zones of economically profitable mineralization, because they have a common formation process, but a larger spatial extension. Developing modeling methods for such objects can help to improve exploration and exploitation through better characterization of volumes and geometries. It can also help to better characterize the geological features that control the deposits. For instance, unconformityrelated uranium (URU) deposits are dependent on the presence of major geological structures (faults, unconformities) which impact the geometry of alteration and mineralization halos. First-order features of our halos are driven by the main structural objects, while second-order features are controlled by smaller objects and host rock heterogeneity. We propose to define a multicomponent structural skeleton to build the limits of the alteration halos, based on these geological objects. We calculate a pseudo-distance field D(p) to this structural skeleton. This distance field is used to construct isosurfaces corresponding to the boundaries of the alteration fronts. To obtain a skeleton that fits the input data, we introduce a skeleton modification phase. During this phase, the characteristics of the skeleton, such as the number of components, and their position and orientation, are modified.},
 author = {Marchal, Paul and Caumon, Guillaume and Collon, Pauline and Ledru, Patrick and Mercadier, Julien},
 booktitle = {2023 {RING} meeting},
 language = {en},
 pages = {17},
 publisher = {ASGA},
 title = {Joint stochastic modeling of alteration halos and geological structures using a multicomponent skeleton-based approach},
 year = {2023}
}