Geophysical methods as a tool for improving our knowledge of ornamental rock deposits and their exploitation
DOI:
https://doi.org/10.21701/bolgeomin.128.2.006Keywords:
borehole, deposit, geophysics, ornamental stone, resistivityAbstract
The ornamental rock sector, particularly the investigation of deposits, is not readily given to the incorporation of new technologies. The Marble Technology Center (CTM) has made advances in this sector with the implementation of geophysical techniques able to obtain subsurface information. There are still a few outcrops and active quarries where joint geophysical techniques have been applied sufficiently to obtain a three-dimensional model of the study area.
The application of geophysics and more specifically, ground penetrating radar, electrical tomography and seismic refraction, when conducting research of a reservoir or outcrop, is only slightly aggressive to the environment, allowing a real knowledge of the characteristics before beginning the more aggressive work, as is the case when conducting surveys and test pits which can subsequently complement the data obtained. This makes it possible to gain a good idea of the quality of the reservoir thus allowing optimization of resources, both financial and environmental beforehand.
Several studies conducted by the CTM illustrate the benefits brought by the application of these geophysical techniques as well as the weaknesses within the characteristics of the extraction sites and ornamental rock outcrops.
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