Results 1 to 10 of about 6,627 (195)

A new species of Mollinedia (Monimiaceae, Laurales) from the Quadrilátero Ferrífero, Brazil. [PDF]

PhytoKeys, 2023
Abstract Monimiaceae comprises approximately 26 genera and 250 species, with a pantropical distribution, predominantly occurring in humid forests. In Brazil, it is represented by five genera and 47 species, most of which are found in the Atlantic Forest,
Zavatin DA, Ramos R, Watanabe MTC, Pedrosa LG, de Lírio EJ.   +4 more
europepmc   +2 more sources

Karst-bauxite formation during the Great Oxidation Event indicated by dating of authigenic rutile and its thorium content. [PDF]

Sci Rep, 2023
Aluminium (Al)-rich palaeosols—i.e., palaeobauxite deposits—should have formed in karst depressions in carbonate sequences as a result of acidic solutions from oxidative weathering of sulfide minerals during the Great Oxidation Event (GOE), but no GOE ...
Cabral AR, Zeh A.
europepmc   +3 more sources

The structure of western Serra do Curral, Quadrilátero Ferrífero, and tectonic control of the high-grade iron hard bodies [PDF]

Geologia USP. Série Científica, 2014
The structure of western Serra do Curral, Quadrilátero Ferrífero, represents the partial exposure of a syncline that verges to NNW – Piedade Syncline. This regional structure has parasitic folds denominated as B1A which are refolded by folds B1B that ...
Julio Carlos Destro Sanglard, Carlos Alberto Rosière, João Orestes Schneider Santos, Neil Jesse McNaughton, Ian Robert Fletcher   +4 more
doaj   +4 more sources

Lithobiomes Heterogeneity and Geographic Distance Shape the Landscape Genomics Within Brazilian Mountain Systems. [PDF]

Ecol Evol
Genomic analyses of Paepalanthus calvus across Brazilian montane ecosystems reveal strong population structure shaped by geographic distance and lithological heterogeneity. Fine‐scale edaphoclimatic factors are the main predictors of genetic divergence among distinct lithobiomes, underscoring the role of substrate‐driven ecological isolation and local ...
Cabrini M, Trovó M, Takahashi D, Suyama Y, Ramos R, Lira C.   +5 more
europepmc   +2 more sources

Bacteriome Diversity of Soil Islands Associated With Bromeliads From Ironstone Outcrops in the Brazilian Pantanal. [PDF]

Int J Microbiol
Knowledge about the diversity and distribution of microorganisms in natural environments is essential for understanding the dominant microbial groups and predicting their ecological functions. This study is aimed at describing the bacteriome diversity in soils associated with bromeliads in the Brazilian Pantanal region, utilizing genomic approaches. We
Godoy FMR, Paggi GM, Lorenz AP, Ramos JV, Franco DG, Calarge FML, Garcia NFL, Urquiza MVS, Schiavo JA, Almeida NF, Brasil MS.   +10 more
europepmc   +2 more sources

Do Quadrilátero Ferrífero ao Quadrilátero Aquífero: territorialidades conflitantes na produção de um espaço social extensivo à Região Metropolitana de Belo Horizonte-MG

GEOUSP: Espaço e Tempo, 2021
O objetivo desta discussão é compreender processos que levaram à conformação de uma região popular e tecnicamente reconhecida como o Quadrilátero Ferrífero, situada no entorno da Região Metropolitana de Belo Horizonte. Metodologicamente, os levantamentos
Leandro de Aguiar e Souza
doaj   +2 more sources

A pluviometria da região da Serra do Caraça e a influência no Quadrilátero Ferrífero, Minas Gerais [PDF]

GEOUSP: Espaço e Tempo, 2023
A pesquisa analisa sobretudo o comportamento e a distribuição das chuvas na Serra do Caraça e a interação com seu entorno, a região do Quadrilátero Ferrífero, evidenciando o papel da orografia.
Antoniel Silva Fernandes, Alecir Antonio Maciel Moreira   +1 more
doaj   +3 more sources

Geology and land use as key drivers for hydrogeochemistry in a mining district of the Quadrilátero Ferrífero, Brazil: implications for water management strategies. [PDF]

Environ Geochem Health
This study investigated the hydrogeochemical characteristics of surface waters in the Congonhas Mineral District (CMD), located in the southern portion of Quadrilátero Ferrífero, Brazil.
Salomão GN, da Costa Andrade NYM, de Almeida GS, Amarante RT, Dall'Agnol R, Pontes PRM, Sahoo PK, Leão LP, Marques ED, da Silva-Filho EV.   +9 more
europepmc   +2 more sources

Medium and large-sized mammals in Private Natural Heritage Reserves in the Quadrilátero Ferrífero of Minas Gerais, Brazil [PDF]

Neotropical Biology and Conservation, 2021
Habitat fragmentation has been shown to be constantly growing and increasingly affecting the conservation of species that require large areas for their populations to subsist, as is the case for most large animals.
Thales Claussem Vicente Corrêa, Lara Modesto Mendes, Kleiber José Vaz de Melo Barbosa, Fabiano Rodrigues de Melo   +3 more
doaj   +4 more sources

Sedimentology and chronology of unconsolidated alluvial fans of the Quadrilátero Ferrífero (Central Brazil): implications for landscape dynamics in the Late Quaternary

Revista Brasileira de Geomorfologia
This paper identifies and discusses the paleoenvironmental characteristics of the Quadrilátero Ferrífero based on studies of unconsolidated alluvial fans and the chronological organization of their respective sedimentary facies. These alluvial fans were
Fabrício Antonio Lopes, Paulo de Tarso Amorim Castro, Alex de Carvalho, Cláudio Eduardo Lana   +3 more
doaj   +2 more sources