Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Carlos A. Sommer"'
Autor:
SUSANA BENITES, CARLOS A. SOMMER, EVANDRO F. DE LIMA, JAIRO F. SAVIAN, MAURICIO B. HAAG, THIAGO R. MONCINHATTO, RICARDO I.F. DA TRINDADE
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 92, Iss 2 (2020)
Abstract The Paraná-Etendeka Magmatic Province is associated with the distensive tectonics that caused the rupture of the Gondwana continent during the Lower Cretaceous and generated an intense volcanism that covers South America and the NW portion
Externí odkaz:
https://doaj.org/article/18ee914f0f7c40e292f12159dd9a8f66
Autor:
Anderson Baesso, Carlos Augusto Sommer, Jairo Francisco Savian, Johnathan Henrique Gambeta, Robson dos Santos Aquino
Publikováno v:
Brazilian Journal of Geology, Vol 52, Iss 3 (2022)
Abstract Neoproterozoic spessartitic lamprophyres are linked to the Lavras do Sul Shoshonitic Association in the Sul-Riograndense Shield, southernmost Brazil. Bodies of intrusive spessartitic lamprophyres occur in trachyandesites of this association
Externí odkaz:
https://doaj.org/article/d44912beb0644dd4af3b94f8e86b8459
Autor:
Thiago R Moncinhatto, Wellington P de Oliveira, Mauricio B Haag, Gelvam A Hartmann, Jairo F Savian, Wilbor Poletti, Daniele Brandt, Carlos A Sommer, Alberto T Caselli, Ricardo I F Trindade
Publikováno v:
Geophysical Journal International. 234:1640-1654
SUMMARY Palaeosecular variation (PSV) determinations and studies of the geometry of the Earth’s main magnetic field provide important information about the field evolution, and to constrain numerical geodynamo models. Palaeomagnetic directional dat
Autor:
Matheus Silva Simões, Carla Cecília Treib Sarmento, Carlos Augusto Sommer, Evandro Fernandes de Lima, Lucas de Magalhães May Rossetti, Edinei Koester
Publikováno v:
International Geology Review. 65:1745-1764
Autor:
Bruna Saar Almeida, Carlos Augusto Sommer, Farid Chemale, Antonio João Paes de Barros, Mauro Cesar Geraldes
Publikováno v:
International Geology Review. 65:546-562
Autor:
Matheus S. Simões, Carlos A. Sommer, Evandro F. Lima, Lucas M. M. Rossetti, Marcell L. Besser
Publikováno v:
Bulletin of Volcanology. 85
Autor:
Matheus Silva Simões, Evandro Fernandes de Lima, Carlos Augusto Sommer, Lucas de Magalhães May Rossetti
Publikováno v:
Brazilian Journal of Geology, Iss 0 (2018)
ABSTRACT: The Mato Perso Conduit System is described from a ~ 120 km2 area in south Brazil exposing silicic volcanics of the Paraná-Etendeka LIP. A volcanic succession is defined by basaltic flows covered by flat-lying oxidized vitrophyres, banded v
Externí odkaz:
https://doaj.org/article/e52cfab341c0405d9f7c53b5137dbda8
Autor:
Mauro Cesar Geraldes, Felipe Corrales, Carlos Augusto Sommer, Bruna Saar de Almeida, Antonio João Paes de Barros
Publikováno v:
Acta Geochimica. 40:1023-1049
The volcanic rocks of the Colider and Roosevelt formations are extensively exposed in the south-central portion of the Amazonian Craton where effusive and pyroclastic rocks have been mapped. Both units, topped by chemical sediments and oceanic facies
Autor:
Carla Cecília Treib Sarmento, Carlos Augusto Sommer, Evandro Fernandes de Lima, Diego Skieresz de Oliveira
Publikováno v:
Geologia USP. Série Científica, Vol 14, Iss 2, Pp 23-44 (2014)
The Serra Geral Formation is characterized by an expressive volume of tholeiitic basic lava flows and a subordinate presence of acid volcanites. Intrusive bodies (dikes and sills) are correlated to this unit, and, along with volcanic deposits, consti
Externí odkaz:
https://doaj.org/article/bf89819e872941b5baf6d22871b16c97
Autor:
Ana Carolina Batista Vieira, Pedro Angelo Almeida-Abreu, Gislaine Ámores Batillani, Carlos Augusto Sommer
Publikováno v:
Brazilian Journal of Geology v.52 n.3 2022
Brazilian Journal of Geology
Sociedade Brasileira de Geologia (SBGEO)
instacron:SBGEO
Brazilian Journal of Geology, Volume: 52, Issue: 3, Article number: e20200063, Published: 01 JUL 2022
Brazilian Journal of Geology
Sociedade Brasileira de Geologia (SBGEO)
instacron:SBGEO
Brazilian Journal of Geology, Volume: 52, Issue: 3, Article number: e20200063, Published: 01 JUL 2022
The mineral chemistry of diamond indicator minerals is used to trace mineralizations in primary rocks such as lamproites/kimberlites and in secondary deposits. Subcalcic garnets and magnesian ilmenites are both minerals associated with the diamond po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bad987e490a6dd77ac8a79bf56b9f88a
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892022000300302
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892022000300302