نتایج جستجو برای: calcic and potassic alterations
تعداد نتایج: 16837266 فیلتر نتایج به سال:
The conglomerates of Sangestan Formation (Lower Cretaceous) have been metamorphosed in the vicinity of the leucogranitoid rocks of the Shir-Kuh batholith and have created the mineral assemblage of garnetepidote- quartz-calcite-pyrite in the contact halo. Following the contact metamorphism, hydrothermal alteration (pyrite formation and silicification) has likely occurred. Based on the trace...
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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...
Three-dimensional counter-diffractometer data corrected for absorption and a full matrix least-squares method have been used to refine the crystal structure of an oxy-kaersutite in the on oal om os t on of 9t ~176 Oa.10 T10.~15Mn0.009A10.a~GS15.s~sA12.1220~(O )2 wlth cell and 3 lO5"388(5) ~ Cation site occupancies were refined using bulk chemical constraints and the A-site positionally disorder...
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...
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