Buscar
Mostrando ítems 31-40 de 163
The alkaline silica-saturated ultrapotassic magmatism of the Riacho do Pontal Fold Belt, NE Brazil: an example of syenite–granite Neoproterozoic association
(Journal of South American Earth Sciences, 2000)
The Neoproterozoic of northeastern Brazil was marked by the development of collisional fold belts, mainly surrounding the Sa˜o Francisco
Craton, and an associated widespread granitic magmatism. The Casa Nova 555 ^ 10 Ma; ...
Genesis of the el laco iron deposit unraveled by magnetite geochemistry
(Universidad de Chile, 2021)
La génesis de los depósitos de magnetita-apatito o iron oxide-apatite (IOA), fuentes históricas de hierro a nivel mundial, ha sido intensamente debatida por décadas. Gran parte de este debate se ha centrado en el depósito ...
Mineralogy and geochemistry of apatite and magnetite in iron oxide-apatite deposits: implications for ore genesis in the Andrean IOCG Province
(Universidad de Chile, 2020)
Los depósitos denominados de tipo magnetita apatito o iron-oxide apatite (IOA) son una fuente importante de Fe, P y REE a nivel mundial. En los últimos años, la magnetita ha sido utilizada como un indicador petrogenético ...
Petrography, geochemistry and age of Cerro Frontino Gabro
(Universidad Nacional de Colombia - Sede Medellín - Facultad de Minas, 2015-07-01)
The Gabro de Cerro Frontino was emplaced in the Cañasgordas Block, located in the Northern Segment of the Colombian Western Cordillera. It corresponds to a pluton composed of at least three magmatic pulses, emplaced during ...
MAJOR AND MINOR ELEMENTS GEOCHEMISTRY OFTHE PEDRA BRANCA, FRADES AND NOVA FRIBURGO GRANITIC COMPLEXES, RIBEIRA MOBILE BELT, RIO DE JANEIRO, BRAZILMAJOR AND MINOR ELEMENTS GEOCHEMISTRY OFTHE PEDRA BRANCA, FRADES AND NOVA FRIBURGO GRANITIC COMPLEXES, RIBEIRA MOBILE BELT, RIO DE JANEIRO, BRAZIL
(Sociedade Brasileira de Geologia, 2018)
Gas geochemistry in modeling geothermal reservoirsGas geochemistry in modeling geothermal reservoirs
(Instituto de Geofísica, 2012)