Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Paulo Salvadoretti"'
Autor:
Barbara Victoria Reffatti Andrade, Paulo Salvadoretti, Luciana Arnt Abichequer, George Olufunmilayo Gasper, Luis Eduardo de Souza
Publikováno v:
REM: International Engineering Journal, Vol 77, Iss 2 (2024)
Abstract This study shows the usefulness of borehole geophysical logging of density in the identification of coal seams, in relation to other lithologies present in a coal deposit located in the south of Brazil. Four drillholes were studied. The geol
Externí odkaz:
https://doaj.org/article/5afe6746800f4ccdb1c28982528bad02
Autor:
André Cezar Zingano, Paulo Salvadoretti, Rafael Ubirajara Rocha, João Felipe Coimbra Leite Costa
Publikováno v:
REM: International Engineering Journal, Vol 74, Iss 4, Pp 521-528 (2021)
Abstract Knowledge of the physical properties of rock masses is fundamental for the economics and safety of mining projects. The determination of these properties in rock samples in the laboratory requires time, expensive equipment and qualified pers
Externí odkaz:
https://doaj.org/article/802b72fe8c9b47b4bcb38018ebb3deda
Autor:
Rafaela Chirst da Silva, Francisco Manoel Wohnrath Tognoli, Pedro Antonio Roehe Reginato, Paulo Salvadoretti, Laís Vieira de Souza
Publikováno v:
Brazilian Journal of Geology, Vol 51, Iss 3 (2021)
Abstract The Guarani (GAS) and Serra Geral (SGAS) aquifer systems are the main groundwater sources in southern Brazil. We investigated the crucial relationship between the primary, intergranular pore system in the GAS and the secondary pore system as
Externí odkaz:
https://doaj.org/article/e50a92cf4fc240da9b2bba0b833a52e9
Autor:
Joao Felipe Coimbra Leite Costa, Elias Kaspary Pooter, Douglas Marcel Quatiabara Sander Libardi, Oluwafemi Shekoni Ayodeji, George Olufunmilayo Gasper, André Cezar Zingano, Paulo Salvadoretti
Publikováno v:
REVISTA BRASILEIRA DE GEOLOGIA DE ENGENHARIA E AMBIENTAL. 11:98-112
Autor:
Tiago de Almeida, Douglas Sander Quatiabara Libardi, George Olufunmilayo Gasper, Paulo Salvadoretti, Breno Gorelik, João Felipe Coimbra Leite Costa
Publikováno v:
Geosciences = Geociências. 38:157-170
Este estudo investiga a possibilidade do uso da perfilagem geofísica de gama natural e resistividade na discriminação de estratos carbonosos, em relação a outras litologias presentes em quatro depósitos de carvão localizados no Rio Grande do S
Autor:
Douglas Marcel Quatiabara Sander Libardi, Elias Potter, George Olufunmilayo Gasper, Tiago de Almeida, Paulo Salvadoretti
Publikováno v:
ABM Proceedings.
Using borehole geophysical data as soft information in indicator kriging for coal quality estimation
Publikováno v:
International Journal of Coal Geology. 112:67-75
Mineral resources estimation comprises basically two stages: (i) data collection, analysis and validation, and (ii) the estimate of the grades and tonnes of the deposit. The most often applied method for obtaining geological data during mineral explo
Autor:
Douglas Sander Quatiabara Libardi, Paulo Salvadoretti, George Olufunmilayo Gasper, João Felipe Coimbra Leite Costa, Oluwafemi Shekoni Ayodeji
Publikováno v:
Brazilian Journal of Geophysics. 36:19
This study compares data sets obtained from three geophysical probes used for measuring rock resistivity. A detailed analysis was carried out to determine which of these probes provides the best option in terms of identification of coal-seam thicknes
Autor:
Paulo Salvadoretti, Jair Carlos Koppe, Fabricio Souza de Souza, José Adolfo de Carvalho Junior, João Felipe Coimbra Leite Costa, Gustavo Antônio Bastiani, Leandro José de Oliveira
Publikováno v:
Rem: Revista Escola de Minas v.61 n.3 2008
REM. Revista Escola de Minas
Escola de Minas
instacron:ESCOLA DE MINAS
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
REM. Revista Escola de Minas
Escola de Minas
instacron:ESCOLA DE MINAS
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Sondagens com amostragem são comumente utilizadas e de extrema importância para o desenvolvimento da pesquisa e do planejamento da lavra. No entanto, esse tipo de informação é cara de ser obtida e, freqüentemente, sondagem exploratória é usad
Autor:
Paulo Salvadoretti, Oluwafemi Shekoni Ayodeji, João Felipe Coimbra Leite Costa, George Olufunmilayo Gasper
Publikováno v:
14th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 3-6 August 2015.
The use of geophysical well logging data can help to solve problems related to the loss and absence of core samples in a coal deposit, providing extremely valuable information and at the same time reducing exploration cost. In this context, blast hol