Zobrazeno 1 - 10 of 34 pro vyhledávání: '"Andre Sampaio Mexias"'
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Mineralogical Study of Levels with Magnesian Clay Minerals in the Santos Basin, Aptian Pre-Salt Brazil
Autor: Raquel Severo Célia, Carla Cristine Porcher, Paulo Netto, Norberto Dani, Mauricio Dias da Silva, Andre Sampaio Mexias, Susan Martins Drago, Julice Ferreira Santos, Lucas Bonan Gomes, Manuel Pozo, Camila Wense Dias Ramnani, Marcia Elisa Boscato Gomes, Deborah Driemeyer, Luis Adriano Carvalho Silva
Publikováno v: Minerals, Vol 11, Iss 970, p 970 (2021)
Minerals
Volume 11
Issue 9
The object of this study is magnesian clay minerals present in carbonate rocks of the post-rift phase of the pre-salt in the Santos Basin. These rocks developed in an Aptian-age alkaline lacustrine environment. This study summarizes the formation of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::564de901f46cb0f1b16b367620e8feba
https://www.mdpi.com/2075-163X/11/9/970
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3
Evaluation and characterization of Melo Bentonite clay for cosmetic applications
Autor: Venina dos Santos, Lucas Bonan Gomes, Diego Gusmão Veras, Norberto Dani, Andre Sampaio Mexias, Juliana da Silva Favero, Valeria Weiss-Angeli, Carlos Perez Bergmann
Publikováno v: Applied Clay Science. 175:40-46
Clays are used in cosmetology with different applications, which are conditioned to the chemical and mineralogical composition and physical-chemical characteristics of these materials. Therefore, the aim of this work was to evaluate the potential app
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ce15a7b6d6554a440a5c8a52f3469579
https://doi.org/10.1016/j.clay.2019.04.004
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4
Mass balance and origin of fluids associated to smectite and chlorite/smectite alteration in Seival Mine Cu–Mineralization – Camaquã Basin – Brazil (Part II)
Autor: Eduardo Fontana, Andre Sampaio Mexias, Rodrigo W. Lopes, Marie-Christine Gerbe, Christophe Renac, Lauro Valentim Stoll Nardi, Aurélie Barats
Publikováno v: Journal of Geochemical Exploration
Journal of Geochemical Exploration, Elsevier, 2019, 196, pp.20-32. ⟨10.1016/j.gexplo.2018.10.001⟩
Journal of Geochemical Exploration, 2019, 196, pp.20-32. ⟨10.1016/j.gexplo.2018.10.001⟩
International audience; The Seival Mine, located in the Camaquã Basin, hosts several small Cu and Ag ore deposits in volcano–sedimentary sequence surrounding the Lavras do Sul Intrusive Complex. Alteration minerals consist of calcite, sulfate, sme
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e86e8d34d7c681350197829780f20c72
https://doi.org/10.1016/j.gexplo.2018.10.001
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5
Au Cu Ag mineralization controlled by brittle structures in Lavras do Sul Mining District and Seival Mine deposits, Camaquã Basin, southern Brazil
Autor: E. Fontana, Rodrigo W. Lopes, Andre Sampaio Mexias, Everton Marques Bongiolo, Marcos Müller Bicca, Christophe Renac, Ruy Paulo Philipp
Publikováno v: Journal of South American Earth Sciences. 88:197-215
The mineralization of the Lavras do Sul Mining District and Seival Mine are controlled by brittle structures associated with the emplacement of the volcanogenic rocks and granitoids located in Lavras do Sul region, southernmost Brazil. This magmatism
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d82efca00ac6f42f6e26cdffee12704b
https://doi.org/10.1016/j.jsames.2018.08.017
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6
Oxic and post-oxic chemical changes related to eogenesis and mesogenesis in a Miocene paleolake
Autor: Aurélie Barats, Andre Sampaio Mexias, Marie-Christine Gerbe, Martina Rozmaric, Jérôme Barriere, Christophe Renac
Publikováno v: Journal of Paleolimnology
Journal of Paleolimnology, Springer Verlag, 2020, 64, pp.193-210. ⟨10.1007/S10933-020-00131-3⟩
Journal of Paleolimnology, 2020, 64, pp.193-210. ⟨10.1007/S10933-020-00131-3⟩
In the Forez Basin of the French Massif Central, clay-rich alluvial deposits include a series of red- and green-colored sediments and carbonate cement that record evaporation and oxidizing/reducing conditions related to intra-continental climate duri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8f35a66b6a638794df547b3015c99b5
https://hal.archives-ouvertes.fr/hal-02637932
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7
The influence of different concentrations of a natural clay material as active principle in cosmetic formulations
Autor: Júlia Daneluz, Juliana da Silva Favero, Valeria Weiss-Angeli, Lucas Bonan Gomes, Venina dos Santos, Carlos Perez Bergmann, Andre Sampaio Mexias
Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Materials Research, Vol 23, Iss 2 (2020)
Materials Research, Volume: 23, Issue: 2, Article number: e20190572, Published: 01 JUN 2020
Materials Research v.23 n.2 2020
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
The clay minerals have characteristics and properties that allow their applicability in the cosmetic area, being incorporated into formulations as an active principle. Therefore, the aim of this work is characterizing and evaluating the influence of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be7bed2482139dd6e07c2317497fff90
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8
Authigenic Mg-clay assemblages in the Barra Velha Formation (Upper Cretaceous) from Santos Basin (Brazil): The role of syngenetic and diagenetic process
Autor: Marcia Elisa Boscato Gomes, A.M. Rios-Netto, Manuel Pozo, L. Borghi, Andre Sampaio Mexias, M.D. da Silva, P.R.A. Netto
Publikováno v: Applied Clay Science. 216:106339
The compositional and textural characterization of authigenic Mg-clays from the Barra Velha Formation (Early Cretaceous) samples (well P1) was performed. The Mg-clay mineral assemblage is comprised by Mg-smectite (stevensite and saponite) and kerolit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::94833978d6bea5c6177c88588722a038
https://doi.org/10.1016/j.clay.2021.106339
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9
Mineral assemblages and temperature associated with Cu enrichment in the Seival area (Neoproterozoic Camaquã Basin of Southern Brazil)
Autor: Lauro Valentim Stoll Nardi, Andre Sampaio Mexias, Marcia Elisa Boscato Gomes, Eduardo Fontana, Christophe Renac, Rodrigo W. Lopes, Aurélie Barats
Publikováno v: Journal of Geochemical Exploration
Journal of Geochemical Exploration, Elsevier, 2019, 201, pp.56-70. ⟨10.1016/j.gexplo.2019.03.010⟩
Journal of Geochemical Exploration, 2019, 201, pp.56-70. ⟨10.1016/j.gexplo.2019.03.010⟩
International audience; The Neoproterozoic sequence of volcanic rocks in the Camaquã Basin included in the Lavras do Sul Shoshonitic Association hosts disseminated Cu deposits. The volcanic sequence in the Seival Mine area includes andesitic lava fl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76ff06b8c09b725c89798a698ea4087d
https://hal.archives-ouvertes.fr/hal-02193098/document
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10
Ni-smectitic ore behaviour during the Caron process
Autor: Andre Sampaio Mexias, Laurent Caner, Eliana Satiko Mano, Arthur Pinto Chaves, Sabine Petit
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Hydrometallurgy
Hydrometallurgy, Elsevier, 2019, 186, pp.200-209. ⟨10.1016/j.hydromet.2019.04.010⟩
Niquelândia is a nickel-lateritic ore deposit located in the State of Goias, Brazil. This deposit is one of the best-known nickel-lateritic orebodies in Brazil and contains both oxidized and silicate ores. In the oxidized ores, nickel is essentially
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::826a01c3f468f9482b4bcd86f04531da
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