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- W2542414838 abstract "ABSTRACT. Geophysical surveys were accomplished in Bahia, Brazil, and they aimed at detecting resistivity and/or IP geophysical anomalies that may be correlated to large quartz mass occurrences that, in some cases, may have economic interest (hyaline high-quality quartz or quartz with rutile inclusions). These quartz masses occur in granitic rocks. The indirect geophysical detection of quartz masses was possible, however it could not differentiate the aforementioned types of quartz. After digging wells and trenches, the presence of milky quartz masses, without economic interest, was confirmed.Keywords: resistivity, IP, quartz prospecting. RESUMO. Os levantamentos geofísicos foram efetuados no interior da Bahia, Brasil, e tiveram como objetivo a detecção de anomalias geofísicas de resistividade e/ou IP que pudessem ser correlacionáveis às ocorrências de grandes massas quartzosas que, em alguns casos, podem conter quartzo de interesse econômico – quartzo hialino de boa qualidade ou com inclusões de rutilo. Estas massas quartzosas estão contidas em rochas de composição granítica. A detecção de massas quartzosas por meios geofísicos indiretos foi possível, contudo não permitiu diferenciar os tipos de quartzo supracitados. Conforme confirmações posteriores com escavação de poços e trincheiras, os resultados detectaram a presença das massas quartzosas, porém de quartzo leitoso, sem interesse econômico.Palavras-chave: resistividade, IP, prospecção de quartzo." @default.
- W2542414838 created "2016-11-04" @default.
- W2542414838 creator A5070106047 @default.
- W2542414838 date "2015-12-01" @default.
- W2542414838 modified "2023-10-18" @default.
- W2542414838 title "QUARTZ PROSPECTING WITH INDUCED POLARIZATION (IP) AND RESISTIVITY BY USING GRADIENT AND DIPOLE-DIPOLE ARRAYS" @default.
- W2542414838 doi "https://doi.org/10.22564/rbgf.v33i4.785" @default.
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