Results 61 to 70 of about 307,990 (205)

Decoding Brazil's bean belt: Spatiotemporal patterns, production systems and the pulse of bean production (2011–2022)

Geo: Geography and Environment, Volume 12, Issue 2, July‐December 2025.
Short Abstract This study aimed to map consolidated bean production areas in Brazil and analyse their spatial‐temporal evolution from 2011 to 2022. Based on autocorrelation and relative frequency patterns, four primary bean belts were identified: South, Central Brazil, Mato Grosso and Northeast.
Clever Lucas Aguilar, Osmar Abílio de Carvalho Júnior, Osmar Luiz Ferreira de Carvalho   +2 more
wiley   +1 more source

A new limit for the NW Río de la Plata Craton Border at about 24°S (Argentina) detected by Magnetotellurics [PDF]

, 2015
Old South American structures constitute a puzzle where the Río de la Plata Craton is the most important clue in the assembly of SW Gondwana. The present study is aimed at characterizing the western border of the Río de la Plata Craton on the basis of ...
Barcelona, Hernan, Favetto, Alicia Beatriz, Garcia, Rodolfo Fernando, Pomposiello, Maria Cristina, Rocha, Veronica   +4 more
core   +1 more source

Origin of Silicic Magmatism at the Katla Volcanic Complex, South Iceland

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 6, June 2025.
Abstract The Katla volcano is a bimodal caldera complex within Iceland's basalt‐dominated Eastern Volcanic Zone. To unravel the petrogenesis of silica‐rich rocks from Katla, we provide new δ18O values for almost 60 basaltic, intermediate, and high‐silica eruptive rocks, including a number of partially melted felsic xenoliths.
Valentin R. Troll, Frances M. Deegan, Jussi S. Heinonen, Caroline Svanholm, Chris Harris, Christian M. Lacasse, Harri Geiger, Agata Poganj, Louise Thomas, Malin Andersson, Romain Meyer, Thorvaldur Thordarson   +11 more
wiley   +1 more source

Development and current situation of organic agriculture in Brazil and the State of Sao Paulo. [PDF]

, 2008
A description of the organic production in Brazil as well as an in-depth analysis of the organic sector in the State of Sao ...
Abreu, Lucimar Santiago de, Kledal, Paul Rye, Mendes, Sergio C., Pettan, Klebber, Rabello, Fernando   +4 more
core  

Tectonic evolution of the Dom Feliciano Belt in Southern Brazil : geological relationships and U-Pb geochronology [PDF]

, 2016
O Cinturão Dom Feliciano, que se estende desde o leste do Uruguai até o sul do Brasil, representa um importante orógeno Neoproterozoico formado pela colagem de domínios oceânicos e fragmentos continentais entre os crátons Rio de La Plata, Congo e ...
Chemale Jr, Farid, Philipp, Ruy Paulo, Pimentel, Marcio Martins   +2 more
core   +2 more sources

Phase Equilibria Analysis for Metacarbonate With Applications to Zoned Calc‐Silicate Aureoles

Journal of Metamorphic Geology, Volume 43, Issue 5, Page 445-465, June 2025.
ABSTRACT Carbonate rocks react with infiltrating hydrothermal fluids to produce zoned calcsilicate assemblages in contact aureoles. Petrogenetic grids provide valuable insights into phase relations, metamorphic temperature (T) and the fluid composition (X) of the metacarbonate systems, as well as semi‐quantification of the prograde decarbonation at ...
Zhenhao Zhou, Xu Chu
wiley   +1 more source

Shrimp and conventional U-Pb age, Sm-Nd isotopic characteristics and tectonic significance of the K-rich Itapuranga suite in Goiás, Central Brazil

, 2015
The Itapuranga alkali granite and Uruana quartz syenite are large K-rich EW-elongated intrusions, in the central part of the Neoproterozoic Brasília Belt, central Brazil.
Armstrong, Richard, Dantas, Elton L, Fuck, Reinhardt, Pimentel, Marcio   +3 more
core  

Petrografia e Geoquímica de Rochas Metamáficas e Metaultramáficas da região de Cambuci, Rio de Janeiro [PDF]

, 2011
No norte do estado do Rio de Janeiro são encontradas ocorrências localizadas de corpos de rochas máficas e ultramáficas variavelmente deformadas e metamorfisadas.
Jorge Costa de Moura, Julio Cezar Mendes, Mário Jorge Gesteira Fonseca   +2 more
core   +2 more sources

Overlooked and misunderstood: A morpho‐molecular revision of Ditrichaceae s.str. (Dicranidae, Bryophyta), with a focus on the Holarctic species of Ditrichum

TAXON, Volume 74, Issue 2, Page 223-259, April 2025.
Abstract We revised the Holarctic taxa of Ditrichaceae on the basis of both organellar DNA sequence data and morphological traits. After the removal of phylogenetically discordant elements related to Flexitrichum and Rhamphidium, the remaining representatives of the family cluster into three well‐supported lineages, which are recognized here as the ...
Vladimir Fedosov, Alina Fedorova, Elena Ignatova, John C. Brinda, Jan Kučera   +4 more
wiley   +1 more source

Geophysical perspective on the structural interference zone along the Neoproterozoic Brasília and Ribeira fold belts in West Gondwana

Brazilian Journal of Geology
: The Brasília and Ribeira fold belts have been established in south-southwestern São Francisco Craton during the Brasiliano-Pan African orogeny (0.9-0.5 Ga - Tonian to Cambrian), and played an important role in West Gondwana continent assembly.
João Gabriel Motta, Norberto Morales, Walter Malagutti Filho   +2 more
doaj   +1 more source