Geochemical signatures and natural background values of rare earth elements in soils of Brazilian Amazon

M da Silva Ferreira, MPF Fontes, CR Bellato… - Environmental …, 2021 - Elsevier
Rare earth elements (REEs) are generally defined as a homogenous group of elements with
similar physical-chemical properties, encompassing Y and Sc and the lanthanides elements …

Soils of the Brazilian Coastal Plains biome: prediction of chemical attributes via portable X-ray fluorescence (pXRF) spectrometry and robust prediction models

ÁJG de Faria, SHG Silva, LCA Melo, R Andrade… - Soil …, 2020 - CSIRO Publishing
Portable X-ray fluorescence (pXRF) spectrometry has been successfully used for soil
attribute prediction. However, recent studies have shown that accurate predictions may vary …

Gênese de solos coesos do leste maranhense: relação solo-paisagem

JS Dantas, J Marques Júnior… - Revista Brasileira de …, 2014 - SciELO Brasil
A ocorrência dos solos coesos no Brasil está relacionada dominantemente com os
sedimentos argiloarenosos da Formação Barreiras, os quais estão geologicamente …

[HTML][HTML] Clay mineralogy of Brazilian Oxisols with shrinkage properties

SA Testoni, JA Almeida, L Silva… - Revista Brasileira de …, 2017 - SciELO Brasil
Shrinkage capacity (caráter retrátil in Portuguese) is a new diagnostic characteristic recently
introduced in the Brazilian System of Soil Classification (SiBCS) to indicate shrink and swell …

Potential of rheometry in detecting cohesive soils in Brazil as an additional tool to morphological field description and tensile resistance quantification

V Sobucki, D Holthusen, AC Batistão, JCA Mota… - Geoderma …, 2022 - Elsevier
Although an experienced pedologist quickly identifies soils with a cohesive character
(similar to hardsetting soils) directly in the field, advances in its correct diagnosis are …

Cemented horizons and hardpans in the coastal tablelands of Northeastern Brazil

JBV Gomes, JC Araújo Filho… - Revista Brasileira de …, 2017 - SciELO Brasil
Horizons with varying degrees of cementation are a common feature of the soils from the
coastal tablelands of Northeastern Brazil. In most cases, these horizons are represented by …

[HTML][HTML] Contribuição de material amorfo na gênese de horizontes coesos em Argissolos dos Tabuleiros Costeiros do Ceará

JM Vieira, RE Romero, TO Ferreira… - Revista Ciência …, 2012 - SciELO Brasil
Os Tabuleiros Costeiros, com ocorrência nas regiões Norte, Nordeste e Sudeste do Brasil,
apresentam solos com horizontes coesos, os quais podem ocasionar impedimentos físicos …

Functionality of the porous network of Bt horizons of soils with and without cohesive character

AS Menezes, TL Alencar, RNA Júnior, RS Toma… - Geoderma, 2018 - Elsevier
Abstract Knowledge on pore functionality is important for the management of soils in the
environment. The present study considered the hypothesis that Bt horizons with cohesive …

Mineral alteration and genesis of Al–rich soils derived from conglomerate deposits in Cabo Basin, NE Brazil

EUC da Costa, JCB dos Santos, AC de Azevedo… - Catena, 2018 - Elsevier
Abstract In the Cabo Basin, NE Brazil, conglomerates have given rise to soils with attributes
that are rarely observed in humid tropical climates and remain relatively unknown within the …

Soils of the Coastal Tablelands Under Atlantic Forest (Tabuleiros Costeiros)

MM Corrêa, JC de Araújo Filho, CEGR Schaefer… - The Soils of Brazil, 2023 - Springer
Abstract The Coastal Tablelands (CT) or Tabuleiros Costeiros are formed by the extensive
coastal sedimentary strip, along a north–south direction, with a predominant width between …