Results 1 to 10 of about 378 (127)
Marine influence in the Barreiras Formation, State of Alagoas, northeastern Brazil [PDF]
Anais da Academia Brasileira de Ciências, 2009 Tidal processes were important for deposition of the Barreiras Formation located in northern Brazil, while correlatable deposits in northeastern Brazil have been traditionally related to continental environments.
Dilce F. Rossetti, Ana M. Góes
doaj +6 more sources
2D stability and flow analysis of a slope in Recife - PE with Barreiras Formation soil in unsaturated conditions [PDF]
MATEC Web of Conferences, 2021 Due to the increase in the number of mass movements on hillslopes during the rainy season in the city of Recife, the importance of analyzing and understanding the unsaturated behavior of the soil is verified.
Fontoura Tahyara +2 more
doaj +4 more sources
Association of Post-Barreiras and Barreiras Formation strata and influence on soil genesis, Southern Bahia – Brazil [PDF]
Revista Brasileira de Ciência do Solo, 2020 The term Post-Barreiras is a definition for sediments above the deposits of the Barreiras Formation, and the genesis of soils in these environments must be related to sedimentary deposition.
Cristiano Marcelo Pereira de Souza +5 more
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Spodosols pedogenesis under barreiras formation and sandbank environments in the south of Bahia [PDF]
Revista Brasileira De Ciencia Do Solo, 2010 Morphologically differentiated Spodosols usually occur in the Coastal Plain of the South of Bahia and North of Espírito Santo. They are found in profiles known as "muçungas", i.e. sandy soils that accumulate water. In these areas, two kinds of Spodosols, different from those in the Restinga area, can be found: Spodosols with E albic horizon (white ...
João CARLOS Ker +2 more
exaly +6 more sources
Genesis and variation spatial of Podzol in depressions of the Barreiras Formation, northeastern Espírito Santo State, Brazil, and its implications for Quaternary climate change [PDF]
Journal of South American Earth Sciences, 2020 Variations in relief associated with pedogenetic processes promote different intensities in weathering of sediments of the Barreiras Formation and may thus lead to the formation of different soil types, like Podzols, Acrisols and Ferralsols. The Podzols of tropical regions contain important information on climate and vegetation changes that occurred ...
Jolimar Antonio Schiavo +2 more
exaly +2 more sources
Degradation systems of ferruginous duricrust in the Barreiras Formation, Southeastern Brazil
CatenaThe Barreiras Formation extends across the South American Atlantic coast and is characterized by alternating layers of sandstones and mudstones that undergo considerable ferruginization, resulting in the formation of iron duricrusts. In the present study, petrographic, micromorphological, microchemical and geochemical analyzes of the duricrusts and ...
Angelica Fortes Drummond Chicarino Varajão +2 more
exaly +3 more sources
Journal of South American Earth Sciences, 2004 Abstract A coastal environment has been interpreted from 110 cm thick mudstone deposits found at the base of a 10 m immature laterite profile, which forms the modern coastal cliff on Mosqueiro Island in northeastern Para state, northern Brazil. The late Tertiary sediment deposits of the Barreiras Formation are studied by multi-element geochemistry ...
Hermann Behling +1 more
exaly +3 more sources
Revista Brasileira de Ciência do Solo, 2007 Os solos coesos de tabuleiros costeiros têm como característica peculiar horizontes minerais subsuperficiais, que apresentam consistência friável quando úmidos, porém, quando secos, têm consistência dura, muito dura ou extremamente dura.
Apolino José Nogueira da Silva +1 more
doaj +1 more source
Revista Águas Subterrâneas, 2016 The purpose of this report is to compare the existence of hydrogeochemical similarity between the Barreiras, Marizal and São Sebastião Formations located in the Recôncavo Norte region of the State of Bahia.
Sérgio Augusto de Morais Nascimento +2 more
doaj +1 more source