Hurai, V., Huraiová, M., Konečný, P., Thomas, R. (2007) Mineral-melt-fluid composition of carbonate-bearing cumulate xenoliths in Tertiary alkali basalts of southern Slovakia. Mineralogical Magazine, 71 (1) 63-79 doi:10.1180/minmag.2007.071.1.63
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Mineral-melt-fluid composition of carbonate-bearing cumulate xenoliths in Tertiary alkali basalts of southern Slovakia | ||
| Journal | Mineralogical Magazine | ||
| Authors | Hurai, V. | Author | |
| Huraiová, M. | Author | ||
| Konečný, P. | Author | ||
| Thomas, R. | Author | ||
| Year | 2007 (February) | Volume | 71 |
| Issue | 1 | ||
| Publisher | Mineralogical Society | ||
| DOI | doi:10.1180/minmag.2007.071.1.63Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 243742 | Long-form Identifier | mindat:1:5:243742:6 |
| GUID | 0 | ||
| Full Reference | Hurai, V., Huraiová, M., Konečný, P., Thomas, R. (2007) Mineral-melt-fluid composition of carbonate-bearing cumulate xenoliths in Tertiary alkali basalts of southern Slovakia. Mineralogical Magazine, 71 (1) 63-79 doi:10.1180/minmag.2007.071.1.63 | ||
| Plain Text | Hurai, V., Huraiová, M., Konečný, P., Thomas, R. (2007) Mineral-melt-fluid composition of carbonate-bearing cumulate xenoliths in Tertiary alkali basalts of southern Slovakia. Mineralogical Magazine, 71 (1) 63-79 doi:10.1180/minmag.2007.071.1.63 | ||
| Abstract/Notes | AbstractTwo types of carbonatic cumulate xenoliths occur in alkali basalts of the northern part of the Carpatho-Pannonian region, Central Europe. One is dominated by Ca-Fe-Mg carbonates with randomly distributed bisulphide globules (Fe1+xS2, x = 0–0.1), Mg-Al spinel, augite, rhönite, Ni-Co-rich chalcopyrite, and a Fe(Ni,Fe)2S4 phase. The second, carbonatic pyroxenite xenolith type, is composed of diopside, subordinate fluorapatite, interstitial Fe-Mg carbonates, and accessory K-pargasite, F-Al-rich ferroan phlogopite, Mg-Al spinel, albite and K-feldspar. All accessory minerals occur in ultrapotassic dacite-trachydacite glass in primary silicate melt inclusions in diopside, together with calcio-carbonatite and CO2-N2-CO inclusions. Textural evidence is provided for multiphase fluid-melt immiscibility in both xenolith types. The carbonatic pyroxenite type is inferred to have accumulated from differentiated, volatile-rich, ultrapotassic magma derived by a very low-degree partial melting of strongly metasomatized mantle. Mineral indicators point to a genetic link between the carbonatite xenolith with olivine-fractionated, silica-undersaturated alkalic basalt ponded at the mantle-crust boundary. | ||
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