About: Geochemistry and genesis of behind-arc basaltic lavas from eastern Nicaragua

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About: Geochemistry and genesis of behind-arc basaltic lavas from eastern Nicaragua Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The petrology and chemistry of the Behind the Volcanic Front (BVF) lavas from eastern Nicaragua illustrate the complex nature of sources and processes. The older, Early Miocene (~17 Ma) low-Ti basalts–andesites are characterized by a strong LILE/HFSE depletion. They are interpreted as relics of Early Miocene volcanic arc, largely analogous to the extinct Coyol arc further W. The prevalent high-Ti lavas are represented both by alkaline (Quaternary trachybasalts: Volcán Azul and Kukra Hill) and subalkaline (basalts–basaltic andesites: Late Miocene, ~ 11 Ma Great Corn Island and Quaternary, Pearl Lagoon) volcanic rocks. All probably represent small-volume decompression melts of an OIB-like source with a strong Galápagos mantle imprint. The positive Sr–Nd isotopic correlation indicates an interaction between this component and a depleted mantle modified slightly by subduction-related influx of mainly Sr and Li. This feeble signal stems most likely from the Miocene convergence episode. The petrology and chemistry of the Behind the Volcanic Front (BVF) lavas from eastern Nicaragua illustrate the complex nature of sources and processes. The older, Early Miocene (~17 Ma) low-Ti basalts–andesites are characterized by a strong LILE/HFSE depletion. They are interpreted as relics of Early Miocene volcanic arc, largely analogous to the extinct Coyol arc further W. The prevalent high-Ti lavas are represented both by alkaline (Quaternary trachybasalts: Volcán Azul and Kukra Hill) and subalkaline (basalts–basaltic andesites: Late Miocene, ~ 11 Ma Great Corn Island and Quaternary, Pearl Lagoon) volcanic rocks. All probably represent small-volume decompression melts of an OIB-like source with a strong Galápagos mantle imprint. The positive Sr–Nd isotopic correlation indicates an interaction between this component and a depleted mantle modified slightly by subduction-related influx of mainly Sr and Li. This feeble signal stems most likely from the Miocene convergence episode. (en)
Title	Geochemistry and genesis of behind-arc basaltic lavas from eastern Nicaragua Geochemistry and genesis of behind-arc basaltic lavas from eastern Nicaragua (en)
skos:prefLabel	Geochemistry and genesis of behind-arc basaltic lavas from eastern Nicaragua Geochemistry and genesis of behind-arc basaltic lavas from eastern Nicaragua (en)
skos:notation	RIV/00025798:_____/10:00000111!RIV11-GA0-00025798
http://linked.open...avai/riv/aktivita	I P S Z
http://linked.open...avai/riv/aktivity	I, P(GA205/06/1680), P(GA205/06/1811), S, Z(MSM 113100005), Z(MZP0002579801)
http://linked.open...iv/cisloPeriodika	3-4
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Janoušek, Vojtěch Rapprich, Vladislav Erban, Vojtěch Mlčoch, Bedřich Magna, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Česká geologická služba
http://linked.open...dnocenehoVysledku	260586
http://linked.open...ai/riv/idVysledku	RIV/00025798:_____/10:00000111
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Back-arc volcanism, Central American Volcanic Arc, whole-rock geochemistry, Li-Sr-Nd-Pb isotopes, K-Ar dating (en)
http://linked.open.../riv/klicoveSlovo	K-Ar dating Central American Volcanic Arc Back-arc volcanism Li-Sr-Nd-Pb isotopes whole-rock geochemistry
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[E7989AC52A07]
http://linked.open...i/riv/nazevZdroje	Journal of Volcanology and Geothermal Research
http://linked.open...in/vavai/riv/obor	DD
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Study of anthropogenic contamination of aquatic sediments by the bound fractions of organic pollutants Magma generation in a continental back-arc environment: Geochemical and isotopic variation across the middle part of the Central American arc
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	192
http://linked.open...iv/tvurceVysledku	Erban, Vojtěch Holub, František Janoušek, Vojtěch Magna, Tomáš Mlčoch, Bedřich Rapprich, Vladislav Wiechert, Uwe Bellon, Hervé
http://linked.open...ain/vavai/riv/wos	000277923700009
http://linked.open...n/vavai/riv/zamer	Geosciences for the Society of the 21st Century: from regional research to geological hazards and global changes. http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20113100005
issn	0377-0273
number of pages	25 (xsd:int)

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