3D geologic model of FARIM-SALIQUINHE phosphates mineralization.

@inproceedings{FerreiraGM2009,
 abstract = { This work is the first attempt to generate an output with Gocad software by the recently created 3D Geologic Modeling research group of CICEGe research centre (from FCT/UNL, Portugal). The objective of this work is to generate a 3D geologic model of the morphology and grades of the Farim-Saliquinhé sedimentary phosphate mineral deposit, located at Guiné-Bissau. The model uses borehole data and previous studies carried by BRGM and Sofremines, and the gOcad software as the main tool. This is a good example to start using gOcad since it is an undeformed simple stratiform mineralized body with the following (sub)horizontal units to include in the 3D model: terrain surface, coverage unit, FPA phosphate unit (main ore) and FPB carbonate-phosphate unit (secondary ore). The workflow can be summarized in the following sequence of steps: Starting a Project in gOcad and Importing Data; Visualizing the Objects and Preparing Data for Modeling; Creating a Structural Model. Add Horizon Data; Build Horizon Surfaces; Creating Volumes. Building a 3D mineral deposit grid; Modeling ore geochemical properties by kriging estimation. At the end, cumulative ore and grade curves are calculated showing mineral resources. },
 author = { Ferreira, Antonio M. AND Charifo, Gilberto AND Chichorro, Martim AND Kulberg, Jose C. AND Almeida, Jose A. },
 booktitle = { Proc. 29th Gocad Meeting, Nancy },
 title = { 3D geologic model of FARIM-SALIQUINHE phosphates mineralization. },
 year = { 2009 }
}