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U-PB AGE AND GEOCHEMISTRY OF THE THOLEIITIC TRACHY-ANDESITE OF GOUVEIA (MG) COMPARED WITH REGIONAL PEDRO LESSA AND FORMIGA THOLEIITIC BASIC ROCKS: FRAGMENTS OF A TONIAN LARGE IGNEOUS PROVINCE (LIP)IDADE U-PB E GEOQUÍMICA DO TRAQUI-ANDESITO TOLEÍTICO DE GOUVEIA (MG) COMPARADAS COM ROCHAS BÁSICAS TOLEÍTICAS REGIONAIS PEDRO LESSA E FORMIGA: FRAGMENTOS DE UMA LARGE IGNEOUS PROVINCE (LIP) TONIANA
(Centro de Ciências Matemáticas e da Natureza, Instituto de Geociências, Universidade Feder, 2019)
Gamma-ray spectrometry signature of paraná volcanic rocks: Preliminary results
(2014-01-01)
The Paraná volcanic rocks (Serra Geral Formation) are characterized by four different types of rocks. The basalts are the most common, and display an integranular texture and dark gray to black color, in massive outcrops. ...
Visualization of volcanic rock geochemical data and classification with artificial neural networks
(SPRINGER/PLENUM PUBLISHERS, 2006-08)
An unsupervised neural network technique, Growing Cell Structures (GCS) was used to visualize geochemical differences between four different island arc volcanic rock types: basalts, andesites, dacites and rhyolites. The ...
Ornithogenic soils on basalts from maritime Antarctica
(CATENA, 2019)
Petrogenesis of Miocene volcanic arc rocks over the Chilean-Pampean flat-slab segment of the Central Andes constrained by mineral chemistry
(Universidad de Barcelona, 2014-06)
Miocene arc volcanism is manifested widely in the Valle del Cura-El Indio belt region (29°30´–30° South latitude), in the southern Central Andes of Argentina and Chile. The magmas that fed this volcanism are well represented ...
Geochemistry of Metabasaltic Rocks from Mina da Palma, São Gabriel, Sul rio-grandense Shield: A Possible Oceanic PlateauGeoquímica de Rochas Metabasálticas da Mina da Palma, Bloco São Gabriel, Escudo Sul-rio-grandense: Um Possível Platô Oceânico
(Instituto de Geociências /Universidade Federal do Rio Grande do Sul, 2003)