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Proveniência e idade do metamorfismo das rochas da faixa Brasilia, na região de tapira (SW de Minas Gerais)
(2006-07-01)
The Brasilia Fold Thrust Belt at Tapira area (SW of Minas Gerais State, Brazil) has four different litho-tectonic domains imbricated by thrust faults with vergency to the São Francisco Craton. Sm/Nd isotopic studies were ...
Geotechnical properties of Brazilian weak sedimentary rocks
(2014-01-01)
The sedimentary rocks cover about 70% of the Brazilian territory. Large sedimentary basins, from the Paleozoic to the early Cenozoic, present a wide variability of lithology, raging from coarse grained rocks as the ...
Sm-Nd system in total rock open versus closed isotopic composition in zones of high deformation
(2002-12-01)
High strain shear zones of Brasiliano age, developed in Paleoproterozoic basement gneiss of the Caicó region, Borborema Province, NE Brazil, were associated with medium- to low-grade metamorphism and deformational processes ...
The cedrolina chromitite, Goiás State, Brazil: A metamorphic puzzle
(2016-09-01)
The Cedrolina chromitite body (Goiás-Brazil) is concordantly emplaced within talc-chlorite schists that correspond to the poly-metamorphic product of ultramafic rocks inserted in the Pilar de Goiás Greenstone Belt (Central ...
Chemical weathering rates and atmospheric/soil CO2 consumption of igneous and metamorphic rocks under tropical climate in southeastern Brazil
(2016-12-02)
Chemical weathering rates and atmosphere/soil CO2 consumption of igneous and metamorphic rocks under tropical climate in southeastern Brazil were evaluated using the chemical composition of surface waters and fresh rocks ...
X-ray color maps of the zoned garnets from silgará formation metamorphic rocks,santandermassif, eastern cordillera (colombia)
(UNIVERSIDAD NACIONAL DE COLOMBIA, 2010)
The metamorphic rocks of the Lower Paleozoic Silgará Formation of the Santander Massif, Eastern Cordillera (Colombia), were affected by a Barrovian-type metamorphism under low to high temperature and medium pressure ...
Ultra-high temperature metamorphism in the Guaxupe Complex: a lower crust segment
(Soc Brasileira Geologia, 2020-01-01)
The area is located at the northern boundary of the Guaxupe Complex, which corresponds to the northern domain of the Socorro-Guaxupe Nappe, in the Southern Brasilia Orogen, close to the Varginha Shear Zone. This study ...
New time constraints for the age of metamorphism at the ancestral Pacific Gondwana margin of southern Chile (42-52°S)
(Servicio Nacional de Geología y Minería (SERNAGEOMIN), 2002)