Výsledky vyhledávání - "Eldemar de A. Menor"

Simulated Acidic Weathering of 'Black Granites': an Assessment using Regression Analysis

Autor: Ely Brasil de Arruda Luna Cavalcanti, José De Araújo Nogueira Neto, Eldemar De Albuquerque Menor, Adejardo Francisco Da Silva Filho, Marcelo Reis Rodrigues Da Silva, Lucas Fontenele Amorim

Publikováno v: Anuário do Instituto de Geociências. 46

A number of “black granites” were tested using simulated acidic weathering (H2SO4, HNO3, H2SO4/HNO3 and HCl, at pH = 3,00), freeze resistance and relative loss of brightness. The same plates of these granites remained immersed in each acidic solu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::252e5fe98a337ccf1a7996a6af7d505e
https://doi.org/10.11137/1982-3908_2023_46_39560

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Upper Pleistocene–Holocene in the continental slope of the Cará Basin: an integrated analysis based on planktic foraminifera, sedimentological and geochemical aspects

Autor: Robbyson Mendes Melo, Eldemar de Albuquerque Menor, George Satander Sá Freire, Agathe Arrissa Noucoucouk

Publikováno v: Revista Brasileira de Paleontologia. 24:179-194

This research addresses paleoclimatic variations using sedimentological, geochemical, and planktic foraminifera. The study was carried out in a survey core (ANP 1011) collected on the continental slope of the Icarai Sub-basin (Ceara Basin), on the co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a49ac62d35e5374ecae25499dcd28f36
https://doi.org/10.4072/rbp.2021.3.02

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ASPECTOS SEDIMENTOLÓGICOS E GEOQUÍMICOS DO TESTEMUNHO ANP 1040, DO TALUDE CONTINENTAL DA PORÇÃO OESTE DO ESTADO DO CEARÁ

Autor: Narelle Maia de Almeida, Eldemar de Albuquerque Menor, George Satander Sá Freire, Agathe Arrissa Noucoucouk, Robbyson Mendes Melo

Publikováno v: Estudos Geológicos. 30:26-37

O testemunho ANP 1040 analisado foi coletado a uma profundidade de 1900 m no oceano Atlântico Equatorial, distando de 100,8 km da linha de costa do municipio de Itapipoca, Ceara. Foram realizadas analises granulometricas, teor de carbonato de calcio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e6441618ba8f41760d4692f1ed256229
https://doi.org/10.18190/1980-8208/estudosgeologicos.v30n2p26-37

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Akademický článek

Interdisciplinary paleovegetation study in the Fernando de Noronha Island (Pernambuco State), northeastern Brazil

Autor: Luiz C.R. Pessenda, Susy E.M. Gouveia, Marie-Pierre Ledru, Ramon Aravena, Fresia S. Ricardi-Branco, José A. Bendassolli, Adauto de S. Ribeiro, Soraya E.M.G. Saia, Abdelfettah Sifeddine, Eldemar de A. Menor, Sônia M.B. de Oliveira, Renato C. Cordeiro, Ângela M. de M. Freitas, René Boulet, Heloisa F. Filizola

Publikováno v: Anais da Academia Brasileira de Ciências, Vol 80, Iss 4, Pp 677-691 (2008)

The aim of this research was to reconstruct vegetation changes (with climate inferences) that occurred during the Holocene in the Fernando de Noronha Island, Pernambuco State, northeastern Brazil. The research approach included the use of geochemical

Externí odkaz: https://doaj.org/article/42c0ceecf9ef4fb6bbb28b14f35e3231

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Akademický článek

Oceanographic parameters in continental margin of the State of Ceará (northeastern Brazil) deduced from C and O isotopes in foraminifers

Autor: Wanessa S. Marques, Eldemar de A. Menor, Alcides N. Sial, Valdir A.V. Manso, Satander S. Freire

Publikováno v: Anais da Academia Brasileira de Ciências, Vol 79, Iss 1, Pp 129-139 (2007)

Specimens of Recent foraminifera of Amphistegina radiata, Peneroplis planatus and Globigerinoides ruber, from fifty samples of surface sediments of the continental margin of the State of Ceará, Brazil, have been analyzed for carbon and oxygen isotop

Externí odkaz: https://doaj.org/article/5749203e961d4b3690c87c803f733d41

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Hydrogeochemistry approach to the identification of flow components under the descending limb conditions of a hydrograph (Corbeira stream, Spain)

Autor: M.T. Taboada-Castro, Juciene Andrade de Figueiredo, Eldemar de Albuquerque Menor, María Mercedes Taboada-Castro, Luis Drude Lacerda

Publikováno v: Repositório Institucional da Universidade Federal do Ceará (UFC)
Universidade Federal do Ceará (UFC)
instacron:UFC

This paper presents a method based on hydrogeochemical signatures for the identification of flow com- ponents, from the descending limb to the baseflow, without the direct support of hydrographs. The pro- posed model was built using chemical analysis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4216cc5a94a3e7360bbfcde59319c11e
https://doi.org/10.1016/j.apgeochem.2011.12.025

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Principal component analysis (PCA) and mineral associations of litoraneous facies of continental shelf carbonates from northeastern Brazil

Autor: George Satander Sá Freire, Valderez P. Ferreira, Eldemar de Albuquerque Menor, Alcides N. Sial, Enjolras de Albuquerque Medeiros Lima, Valdir do Amaral Vaz Manso, Wanessa Sousa Marques

Publikováno v: Repositório Institucional da Universidade Federal do Ceará (UFC)
Universidade Federal do Ceará (UFC)
instacron:UFC

The distribution of mineral phases according to the provenance of carbonate and terrigenous facies of carbonate sediments from a large area of the continental shelf of northeast Brazil was investigated using a major element multivariate analysis appr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6632884f0d97ca49dd7f5f9e41cec3a4
https://doi.org/10.1016/j.csr.2008.09.005

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Ancient Coastlines in the Continental Shelf of the State of Ceará, Northeast Brazil: Evidence from Sediment Chemistry and Stable Isotopes

Autor: Wanessa Sousa Marques, Roberto Lúcio Belo de Souza, Valderez P. Ferreira, Eldemar de Albuquerque Menor, Alcides N. Sial, George Satander Sá Freire, Enjolras de Albuquerque Medeiros Lima

Publikováno v: International Geology Review. 50:1141-1156

Continental shelf sediments from the state of Ceara, northeastern Brazil, have been studied to investigate meteoric diagenesis of marine sediments of previously defined ancient coastal lines. Major elements for 131 samples of carbonate sediments and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2b3cbfd029dfdba69ecdd5b9a7ed31fb
https://doi.org/10.2747/0020-6814.50.12.1141

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