Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Alain Demant"'
Publikováno v:
Andean Geology, Vol 37, Iss 1, Pp 54-77 (2010)
In the El Volcan and Rodeo de los Bueyes areas, Andean Principal Cordillera (east of Santiago; 33°50'S), an Upper Oligocene-Lower Miocene volcanic series belonging to the Abanico Formation (Late Eocene-Early Miocene) is exposed. The rock successions
Externí odkaz:
https://doaj.org/article/b0578be11d084c83a2abc84942e97f99
Autor:
Galina V. Pashkova, Alexei V. Ivanov, Francisco A Paz Moreno, Elena I. Demonterova, Alain Demant, Carlos Rodolfo Corella Santa Cruz, Natalia N. Ukhova
Publikováno v:
Geological Society of America Abstracts with Programs.
Autor:
Teresa Torres, Francisco Hervé, Luis Aguirre, Alain Demant, Joaquin Bastias, Katja Deckart, Francisco Fuentes
Publikováno v:
Applied Clay Science, Vol. 134 (2016) pp. 246-256
The Upper Cretaceous basic volcanic succession in Hannah Point, Livingston Island, Antarctica, presents a widespread occurrence of very low-grade secondary minerals. They occur filling amygdules, veins and veinlets, and replacing phenocrysts and grou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdb522fa259a09cf956e9927fa75b321
https://archive-ouverte.unige.ch/unige:109546
https://archive-ouverte.unige.ch/unige:109546
Publikováno v:
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Surtseyan tuff cones of the Bano Nuevo Volcanic Complex erupted in shallow marine water during the waning stage of the Aisen Basin, the northern part of the Austral Basin of the Central Patagonian Cordillera. This volcanic complex was emplaced within
Autor:
Alain Demant, Jean Jacques Cochemé, Alexander Iriondo, Jesús Roberto Vidal Solano, Francisco A Paz Moreno
Publikováno v:
Comptes Rendus Geoscience. 337:1421-1430
Scattered ignimbritic mesas crop out in the Hermosillo region (Sonora, Mexico). These rocks that have been dated at 12.5 Ma (Middle Miocene) have the petrography and chemical characteristics of comendites. Such a flare-up of peralkaline acidic volcan
Publikováno v:
Bulletin de la Société Géologique de France. 175:131-145
On Byers Peninsula, the largest summer ice-free area in the South Shetland Islands, a thick Upper Jurassic-Lower Cretaceous sedimentary sequence and penecontemporaneous igneous activity records the progressive emersion of a volcanic arc. The oldest r
Autor:
Francisco A Paz Moreno, Alain Demant
Publikováno v:
Journal of Volcanology and Geothermal Research. 93:31-52
Isla San Luis, one of the most recent eruptive centres in the Gulf of California, presents a complete magma evolution trend from basaltic andesites to rhyolites. The less-evolved lavas are palagonite tuffs, related to Surtseyan-type activity which ch
Publikováno v:
Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science. 327:795-801
The Holocene Murta basalts represent a small volume monogenetic centre located in the northern Patagonian Andes at the latitude of the Chile Triple Junction. These basalts show morphological evidence of subglacial eruption. They are locally porphyrit
Publikováno v:
Bulletin of Volcanology. 56:47-61
Three major phases are distinguished during the growth of Nyiragongo, an active volcano at the western limit of the Virunga Range, Zaire. Lavas erupted during phase 1 are strongly undersaturated melilitites characterized by the presence of kalsilite
Publikováno v:
Andean Geology. 37
In the El Volcan and Rodeo de los Bueyes areas, Andean Principal Cordillera (east of Santiago; 33o50'S), an Upper Oligocene-Lower Miocene volcanic series belonging to the Abanico Formation (Late Eocene-Early Miocene) is exposed. The rock successions