| Harris, C., Cressey, G., Bell, J. D., Atkins, F. B., Beswetherick, S. (1982) An occurrence of rare-earth-rich eudialyte from Ascension Island, South Atlantic. Mineralogical Magazine, 46 (341) 421-425 doi:10.1180/minmag.1982.046.341.02 | Journal (article/letter/editorial) | An occurrence of rare-earth-rich eudialyte from Ascension Island, South Atlantic C. HARRIS, G. CRESSEY... J. D. BELL, F. B. ATKINS, AND S. BESWETHERICK Department of Geology and Mineralogy, Parks Road, Oxford...resembling eudialyte in arfvedsonite/aegirine perthite granites. The only singlecrystal X-ray pattern and chemistry...specimen found to contain eudialyte [spec. H in one granite block from the 5 Mile Post area on 30(1)] falls...falls within group (iii). Ascension Island. To our knowledge, eudialyte has not Petrographically, this last | | | Journal (article/letter/editorial) | Mineralogy and Petrology Contrib Mineral Petrol (1985) 91:74-81 9 Springer-Verlag1985 Hydrogen and oxygen...geochemistry of Ascension Island lavas and granites: variation with crystal fractionation and interaction...interaction with sea water* Simon M.F. Sheppard and Chris Harris** Centre de Recherches P~trographiques et G6ochimiques...Vandoeuvre-l~s-Nancy, France Abstract. Lavas and pyroclastics on Ascension Island contain plutonic blocks that include...ratios, F and C1 have been analysed on whole rocks and/or minerals for lavas and granites, and D/H ratios | | | Journal (article/letter/editorial) | Magmatic Inclusions in the Plutonic Ejecta of Ascension Island by CHRIS HARRIS* (Received 25 May 1984; revised...Plutonic blocks' in the volcanic and pyroclastic rocks of Ascension Island contain a variety of silicate... mainly in the intermediate (monzonite-syenite) and granite types. The silicate melt inclusions consist...density CO2 + H 2 0 inclusions, predominantly vapour and (iii) high density approximately pure H2O inclusions...have contained greater than 5 wt. per cent H2O before saturation was reached and homogenization temperatures |
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