| Élément Dublin Core | Valeur | Langue |
|---|
| dc.contributor.author | Seimetz, Eduardo Xavier | - |
| dc.contributor.author | Costa, Alexandre Santos Jeronimo da | - |
| dc.contributor.author | Borges, Welitom Rodrigues | - |
| dc.contributor.author | Ianniruberto, Marco | - |
| dc.contributor.author | Canata, Rafael Espindola | - |
| dc.date.accessioned | 2023-10-27T12:48:43Z | - |
| dc.date.available | 2023-10-27T12:48:43Z | - |
| dc.date.issued | 2023-01-31 | - |
| dc.identifier.citation | SEIMETZ, Eduardo Xavier et al. Geoelectric signature of gold mineralization in the Alta Floresta Gold Province, Mato Grosso State, Brazil. Minerals, [S.l.], v. 13, n. 2, 203, 2023. DOI: https://doi.org/10.3390/min13020203. Disponível em: https://www.mdpi.com/2075-163X/13/2/203. Acesso em: 27 out. 2023. | pt_BR |
| dc.identifier.uri | http://repositorio.unb.br/handle/10482/46753 | - |
| dc.language.iso | eng | pt_BR |
| dc.publisher | MDPI | pt_BR |
| dc.rights | Acesso Aberto | pt_BR |
| dc.title | Geoelectric signature of gold mineralization in the Alta Floresta Gold Province, Mato Grosso State, Brazil | pt_BR |
| dc.type | Artigo | pt_BR |
| dc.subject.keyword | Polarização induzida | pt_BR |
| dc.subject.keyword | Província Aurífera de Alta Floresta | pt_BR |
| dc.subject.keyword | Ouro - minas e mineração | pt_BR |
| dc.rights.license | Copyright: © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). | pt_BR |
| dc.identifier.doi | https://doi.org/10.3390/min13020203 | pt_BR |
| dc.description.abstract1 | The Alta Floresta Gold Province (PAAF) is abundant in gold deposits and, located in the
state of Mato Grosso, Brazil, is an ideal place to study the geoelectric signature of gold mineralization.
Auriferous mineralization occurs along shear zones in quartz veins and disseminated granites in
this region. Ores are associated with oxides and sulfides, mainly with pyrites. To identify primary
gold or continuities of the mineralized zones, data were acquired using the geophysical methods of
electrical resistivity and induced polarization in three gold mines: Raimunda, Truilio, and Porteira.
Dipole–dipole arrays with electrode spacings of 20 and 25 m were used to investigate up to 100 m in
depth. Resistivity and chargeability range scales were developed with statistical analyses of all the
geophysical and geological data. The geophysical models of the Raimunda and Truilio gold mines
showed coherence with the boreholes, but the geophysical models of the Porteira gold mine were not
coherent with the boreholes. The resistivity and chargeability parameters indicated that the lithotypes
(soils, saprolites, and monzogranites) could be characterized and identified as potential mineralized
targets. The soils ranged from 1000 to 8000 ohm.m, the saprolites had values from 150 to 800 ohm.m,
and the monzogranite values were from 1100 to 9000 ohm.m. The mineralized targets had values
from 18 to 35 mV/V. The results confirm the efficiency of the resistivity and induced polarization
methods to find sulfides in shear zones in the Alta Floresta Gold Province. | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0001-5726-5884 | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0002-5158-1947 | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0002-9056-9668 | pt_BR |
| dc.contributor.affiliation | University of Brasilia, Institute of Geosciences | pt_BR |
| dc.contributor.affiliation | University of Brasilia, Institute of Geosciences | pt_BR |
| dc.contributor.affiliation | University of Brasilia, Institute of Geosciences | pt_BR |
| dc.contributor.affiliation | University of Brasilia, Institute of Geosciences | pt_BR |
| dc.contributor.affiliation | Federal University of Paraná, Institute of Geology, Earth Science Sector | pt_BR |
| dc.description.unidade | Instituto de Geociências (IG) | pt_BR |
| Collection(s) : | Artigos publicados em periódicos e afins
|
