Abstract Plagioclase phenocrysts in pre-historic andesites provide insight to the dynamics of magma formation and eruption at Taranaki volcano, New Zealand. The phenocryst population has a diversity relic cores total situ 87 Sr/ 86 Sr range 0.70440–0.70486. Within-sample variations 0.00018 0.00043 indicate that many are antecrysts and/or xenocrysts, derived from multiple crystal mush bodies. Sr...

Background/Overview: Most differentiated rocky worlds in our Solar System have mantles of olivine, pyroxene, spinel, and calcic plagioclase (or equivalent high-pressure phase assemblages). Earth’s mantle peridotite and similar rocks in other silicate planets and asteroids normally melt to form basaltic magma, komatiite, or other olivinenormative melts. Details of planetary mantle compositions a...

This work presents a geochemical study of a set of garnets, selected by their colors, from the Camafuca-Camazambo kimberlite, located on northeast Angola. Mantle-derived garnets were classified according to the scheme proposed by Grütter et al. (2004) and belong to the G1, G4, G9 and G10 groups. Both sub-calcic (G10) and Ca-saturated (G9) garnets, typical, respectively, of harzburgites and lher...

Given the role of phosphoinositide-specific phospholipase C (PLC) isozymes in the control of cell growth and differentiation we were prompted to analyze the expression of some of these PLC in human bronchoalveolar carcinoma-derived alveolar epithelial A549 cells. The effects of several fluoro-edenite fibers were compared with those of tremolite, a member of the calcic amphibole group of asbesto...

The chemical variation of clinopyroxene phenocrysts from the trachybasaltic lavas of Etna volcano is described. The phenocrysts show a limited, but distinct trend in chemical variation from calcic-augite in the hawaiites to augite in the benmoreites. The trend of this variation is unusual, being one of Mg-enrichment with differentiation of the magma. Ca shows a steady decrease in the clinopyrox...

Hypercalcemia is a potential adverse effect of calcium-containing ion exchange resins, often used in the treatment and prevention of hyperkalemia in chronic kidney disease (CKD). We describe a series of seven outpatients with moderate CKD (mean glomerular filtration rate estimated with the CKD-EPI formula 41.29 ± 10.83 mL/min/1.73 m(2)), presenting mild hypercalcemia in relation to the treatmen...

Plagioclase crystal fragments and a block of anorthosite occur in small basaltic dykes on the Jos Plateau. The anorthosite is unusual, for the feldspar is labradoritic, but the interstitial mineralogy is granitic rather than basic, displaying granophyric intergrowths in places. The anorthosite is probably not an intermediate stage in fractionation from a basic parent magma towards granite, sinc...