Matches in SemOpenAlex for { <https://semopenalex.org/work/W2166377920> ?p ?o ?g. }
Showing items 1 to 86 of
86
with 100 items per page.
- W2166377920 endingPage "53" @default.
- W2166377920 startingPage "43" @default.
- W2166377920 abstract "Abstract Several examples of magma mixing exist within the undersaturated alkaline magma series of the Tertiary/Quaternary volcanics in the French Massif Central. This study describes magma mixing in the Puy Griou/Griounot area of the Cantal volcano (10-3 Ma). Petrographic evidence for injection of blebs of basic magma into phonolitic host magmas is abundant (cauliform inclusions, liquid-liquid contacts, vesiculation and chilling). Compositions of the inclusions are basic tephrite, whereas the hosts are miaskitic phonolites. Petrographic examination reveals the presence of disequilibrium mineralogical features (e.g. Mg-rich olivine in phonolites) and strong zoning in many clinopyroxenes. Transfer of phenocrysts between basic inclusions and phonolite hosts was common, and can be seen clearly in the wide range of compositions of clinopyroxene. Hornblende, magnetite and olivine were also transferred from inclusions to host. Sr and Nd isotope data indicate that, unlike most other fractionated magmas of the region, phonolites which show evidence for magma mixing are uncontaminated by the continental crust and have isotopic ratios similar to local primitive basic magmas. This leads to the suggestion that the magma mixing event took place at great depth, rather than being a high-level phenomenon. The phonolites were thus generated by high-pressure fractional crystallisation of an earlier basanitic or tephritic parent, perhaps at upper-mantle depths. This conclusion may explain why some phonolites elsewhere in the world have entrained spinel Iherzolite mantle xenoliths." @default.
- W2166377920 created "2016-06-24" @default.
- W2166377920 creator A5034535836 @default.
- W2166377920 date "1989-03-01" @default.
- W2166377920 modified "2023-09-25" @default.
- W2166377920 title "Magma mixing in undersaturated alkaline volcanics, Cantal, Massif Central, France" @default.
- W2166377920 cites W1965567825 @default.
- W2166377920 cites W1981034628 @default.
- W2166377920 cites W1982492746 @default.
- W2166377920 cites W1989978501 @default.
- W2166377920 cites W1992148425 @default.
- W2166377920 cites W1992563126 @default.
- W2166377920 cites W2002650224 @default.
- W2166377920 cites W2003847482 @default.
- W2166377920 cites W2004414602 @default.
- W2166377920 cites W2012017496 @default.
- W2166377920 cites W2017256231 @default.
- W2166377920 cites W2027366747 @default.
- W2166377920 cites W2027571504 @default.
- W2166377920 cites W2049868594 @default.
- W2166377920 cites W2057864411 @default.
- W2166377920 cites W2060204187 @default.
- W2166377920 cites W2063120046 @default.
- W2166377920 cites W2063436373 @default.
- W2166377920 cites W2066293647 @default.
- W2166377920 cites W2081285853 @default.
- W2166377920 cites W2088823453 @default.
- W2166377920 cites W2097572805 @default.
- W2166377920 cites W2128305337 @default.
- W2166377920 cites W2138796537 @default.
- W2166377920 doi "https://doi.org/10.1180/minmag.1989.053.369.04" @default.
- W2166377920 hasPublicationYear "1989" @default.
- W2166377920 type Work @default.
- W2166377920 sameAs 2166377920 @default.
- W2166377920 citedByCount "13" @default.
- W2166377920 countsByYear W21663779202012 @default.
- W2166377920 countsByYear W21663779202013 @default.
- W2166377920 countsByYear W21663779202014 @default.
- W2166377920 countsByYear W21663779202015 @default.
- W2166377920 countsByYear W21663779202016 @default.
- W2166377920 countsByYear W21663779202017 @default.
- W2166377920 crossrefType "journal-article" @default.
- W2166377920 hasAuthorship W2166377920A5034535836 @default.
- W2166377920 hasConcept C11872896 @default.
- W2166377920 hasConcept C120806208 @default.
- W2166377920 hasConcept C127313418 @default.
- W2166377920 hasConcept C167236342 @default.
- W2166377920 hasConcept C17409809 @default.
- W2166377920 hasConcept C182402614 @default.
- W2166377920 hasConcept C183222429 @default.
- W2166377920 hasConcept C192241223 @default.
- W2166377920 hasConcept C2780364934 @default.
- W2166377920 hasConcept C59235061 @default.
- W2166377920 hasConcept C67236022 @default.
- W2166377920 hasConceptScore W2166377920C11872896 @default.
- W2166377920 hasConceptScore W2166377920C120806208 @default.
- W2166377920 hasConceptScore W2166377920C127313418 @default.
- W2166377920 hasConceptScore W2166377920C167236342 @default.
- W2166377920 hasConceptScore W2166377920C17409809 @default.
- W2166377920 hasConceptScore W2166377920C182402614 @default.
- W2166377920 hasConceptScore W2166377920C183222429 @default.
- W2166377920 hasConceptScore W2166377920C192241223 @default.
- W2166377920 hasConceptScore W2166377920C2780364934 @default.
- W2166377920 hasConceptScore W2166377920C59235061 @default.
- W2166377920 hasConceptScore W2166377920C67236022 @default.
- W2166377920 hasIssue "369" @default.
- W2166377920 hasLocation W21663779201 @default.
- W2166377920 hasOpenAccess W2166377920 @default.
- W2166377920 hasPrimaryLocation W21663779201 @default.
- W2166377920 hasRelatedWork W1964228532 @default.
- W2166377920 hasRelatedWork W2063436373 @default.
- W2166377920 hasRelatedWork W2097428626 @default.
- W2166377920 hasRelatedWork W2163007915 @default.
- W2166377920 hasRelatedWork W2315873174 @default.
- W2166377920 hasRelatedWork W2373547471 @default.
- W2166377920 hasRelatedWork W3013637607 @default.
- W2166377920 hasRelatedWork W3096306671 @default.
- W2166377920 hasRelatedWork W4230067649 @default.
- W2166377920 hasRelatedWork W4376163452 @default.
- W2166377920 hasVolume "53" @default.
- W2166377920 isParatext "false" @default.
- W2166377920 isRetracted "false" @default.
- W2166377920 magId "2166377920" @default.
- W2166377920 workType "article" @default.