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foidite

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Journal Article
Published: 01 June 2017
Russ. Geol. Geophys. (2017) 58 (6): 659–673.
...Yu.R. Vasil’ev; M.P. Gora; D.V. Kuz’min Abstract Comparative analysis of ultramafic meymechites of the Maimecha Suite and alkaline volcanics of the Ary-Dzhang Suite (foidites (nephelinites, analcimites, limburgites, etc.) and melilitites) has shown their consanguinity, which indicates...
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Alkaline rocks of the Zijinshan massif on the TAS diagram. F, <span class="search-highlight">foidite</span>; Pc, ...
Published: 01 September 2009
Fig. 3. Alkaline rocks of the Zijinshan massif on the TAS diagram. F, foidite; Pc, picrobasalt; B, basalt; O1, basaltic andesite; O2, andesite; O3, dacite; S1, trachybasalt; S2, basaltic trachyandesite; S3, trachyandesite; U1, tephrite; U2, phonotephrite; U3, tephriphonolite; Pn, phonolite; R
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Specimen of kamafugite (kalsilite mela-<span class="search-highlight">foidite</span>) bomb showing leucite crysta...
Published: 01 August 2002
F ig . 3. Specimen of kamafugite (kalsilite mela-foidite) bomb showing leucite crystals (white), mica (black) and haüyne (blue) in fine-grained matrix.
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Total alkali-silica (TAS) diagram. Fields: F = <span class="search-highlight">Foidite</span>; P c  = Picrobasalt;...
Published: 01 July 2000
Fig. 3. Total alkali-silica (TAS) diagram. Fields: F = Foidite; P c = Picrobasalt; U 1 = Basanite (ol > 10 %) and Tephrite (ol < 10 %); U 2 = Phonotephrite; U 3 = Tephriphonolite; Ph = Phonolite; B = Basalt; S 1 = Trachybasalt; S 2 = Basaltic Trachyandesite; S 3 = Trachyandesite; T
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Alkaline rocks of the Zijinshan massif on the Q–A–P–F diagram for igneous r...
Published: 01 September 2009
, phonolite tephrite; XIV, basan-ite, tephrite; XVa, phonolite foidite; XVb, tephrite foidite; XVc, foidite.
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Total alkali versus silica diagram showing the compositions of published mu...
Published: 01 May 2022
Figure 4.2. Total alkali versus silica diagram showing the compositions of published multiphase rheology measurements on lavas. Measurements of low viscosity suspensions (Foidite to Basaltic Andesite) are performed exclusively via concentric cylinder methods, whereas high viscosity magmas
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Relationship between bulk modulus and volume for silicate glasses. ( a ) An...
Published: 01 February 2012
Figure 3. Relationship between bulk modulus and volume for silicate glasses. ( a ) Anhydrous glasses show a good negative correlation. ( b ) Hydrous glasses suggest converging trends, except for tephrite and foidite (shaded fields).
Journal Article
Published: 01 August 2020
American Mineralogist (2020) 105 (8): 1191–1203.
... experiments, while the phase assemblages were then replaced by olivine + orthopyroxene + melt (or trace phlogopite) in supersolidus experiments. Basaltic and foiditic melts were observed in all supersolidus mixed experiments (~44–52 wt% SiO 2 at 1.5 GPa, ~35–43 wt% SiO 2 at 2.5 GPa). In the phlogopite-rich...
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Multielement diagrams of partition coefficients of trace elements between c...
Published: 30 May 2018
Fig. 8. Multielement diagrams of partition coefficients of trace elements between clinopyroxene and melt. (A and C) This study; (B and D) comparison between the results of this study and the previously published works. Abbreviations: T/B (tephrite/basanite), PB (picrobasalt), F (foidite), NP
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IUGS TAS diagram of igneous rocks of Cabo Verde. B, basalt; BA, basaltic an...
Published: 12 March 2021
, phonolite; F, Foidite. Data from GEOROCK database and Ancochea et al. (2010 , 2012 , 2014 , 2015 ).
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Modified volcanic discrimination diagram after Winchester and Floyd ( Pearc...
Published: 15 June 2017
Fig. 6. Modified volcanic discrimination diagram after Winchester and Floyd ( Pearce 1996 ). Fields: 1, rhyolite and dacite; 2, andesite and basaltic andesite; 3, basalt; 4, alkali rhyolite; 5, trachyte; 6, trachyandesite; 7, alkali basalt; 8, phonolite; 9, tephri-phonolite; 10, foidite.
Journal Article
Published: 01 February 2008
American Mineralogist (2008) 93 (2-3): 426–437.
... (~600–550 ka), and young (~130 ka). The intermediate deposits consist of pyroclastic falls and flows and lavas with compositions ranging from phonolite to foidite. A recent revision of the stratigraphic setting allowed these deposits to be classified into one synthem (the Barile Synthem) and further...
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Journal Article
Published: 01 October 2007
Mineralogical Magazine (2007) 71 (5): 519–537.
... subsynthems and clustered into the Barile Synthem. In the present investigation, trioctahedral micas from the uppermost units (the Ventaruolo Subsynthem) of the Barile Synthem are considered. The samples are labelled VUT187. The phlogopitic micas were separated from the host rock (an olivine-foidite...
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Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2007.2418(09)
... by plagioclase-free foiditic to melilitic rocks. Leucite is the most abundant phase in plagio-leucitites, whereas it might be subordinate to melilite and kalsilite in kama-fugites (Table 1) from both the Roman and Lucanian Magmatic Provinces. Olivine is present in the most mafic end members of both groups...
Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2409(17)
... Bas et al. (1986) . A—andesite; B—basalt; BA—basaltic andesite; BS—basanite; BTA—basaltic trachy andesite; D—dacite; F—foidite; PC—picrobasalt; PH—phonolite; PHTP—phonotephrite; R—rhyolite; T—trachyte; TA—trachy andesite; TB—trachy basalt; TD—trachy dacite; TP—tephrite; TPPH—tephri phonolite. IB...
Journal Article
Published: 01 February 2004
The Canadian Mineralogist (2004) 42 (1): 1–16.
... to clinoatacamite, whereas the only mineral crystallizing from the silicate melt was hydroxylapatite. The two observed silicate melts are of trachyandesitic-tephriphonolitic and foiditic composition, clearly different from the trachybasaltic host-magma. Exsolution of the Cu–Fe–S melt likely took place...
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Journal Article
Journal: Geology
Published: 01 February 1995
Geology (1995) 23 (2): 165–168.
...Gerald H. Haug; Manfred R. Strecker Abstract The 1.4 Ma to Holocene volcanic eruptive centers and flows in the Chyulu Hills, southeastern Kenya, range in composition between foidites and alkali basalts; they record the relation between linear volcanic chains, preexisting basement structures...
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Projection of the results of electron-microprobe analyses of the silicate g...
Published: 01 February 2004
) and foidite, and the host rock as a trachybasalt (III). Symbols: star: intracumulate glass. square: immiscible silicate liquid, circle: host rock.
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(A) Composition of individual glass shards from tephra layers in Auckland c...
Published: 01 November 2009
Figure 5. (A) Composition of individual glass shards from tephra layers in Auckland cores and their likely sources. Compositional fields are from Le Maitre (1984) . A—andesite; B—basalt; BA—basaltic andesite; BS—basanite; D—dacite; F—foidite; T—trachyte; TA—trachyandesite. (B) Examples of shard
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Total alkalies-silica (TAS) plot for Raivavae lavas, adapted from  Le Bas  ...
Published: 01 November 2013
] as empty symbols (left column). Alternative names: nephelinite = foïdite; hawaiite = trachybasalt; mugearite = basaltic trachyandesite; benmoreite = trachyandesite.