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@article{984062, author = {Uher, Pavel and Giuliani, Gaston and Szákall, Sandor and Fallick, Anthony and Strunga, Vladimír and Vaculovič, Tomáš and Ozdín, Daniel and Gregáňová, Markéta}, article_location = {Bratislava}, article_number = {1}, doi = {http://dx.doi.org/10.2478/v10096-012-0005-7}, keywords = {Western Carpathians; Slovakia; Hajnáčka; Gortva; CL; LA-ICP-MS; EMPA; oxygen isotopes; placer; alkali basalts; anorthoclasite xenolith; corundum; sapphire}, language = {eng}, issn = {1335-0552}, journal = {Geologica Carpathica}, title = {Sapphires related to alkali basalts from the Cerová Highlands, Western Carpathians (southern Slovakia): composition and origin}, url = {http://www.degruyter.com/view/j/geoca.2012.63.issue-1/v10096-012-0005-7/v10096-012-0005-7.xml}, volume = {63}, year = {2012} }
TY - JOUR ID - 984062 AU - Uher, Pavel - Giuliani, Gaston - Szákall, Sandor - Fallick, Anthony - Strunga, Vladimír - Vaculovič, Tomáš - Ozdín, Daniel - Gregáňová, Markéta PY - 2012 TI - Sapphires related to alkali basalts from the Cerová Highlands, Western Carpathians (southern Slovakia): composition and origin JF - Geologica Carpathica VL - 63 IS - 1 SP - 71-82 EP - 71-82 PB - Slovak Akademy Press SN - 13350552 KW - Western Carpathians KW - Slovakia KW - Hajnáčka KW - Gortva KW - CL KW - LA-ICP-MS KW - EMPA KW - oxygen isotopes KW - placer KW - alkali basalts KW - anorthoclasite xenolith KW - corundum KW - sapphire UR - http://www.degruyter.com/view/j/geoca.2012.63.issue-1/v10096-012-0005-7/v10096-012-0005-7.xml L2 - http://www.degruyter.com/view/j/geoca.2012.63.issue-1/v10096-012-0005-7/v10096-012-0005-7.xml N2 - Blue, grey-pink and pink sapphires from the Cerová Highlands, Western Carpathians (southern Slovakia) have been studied using CL, LA-ICP-MS, EMPA, and oxygen isotope methods. The sapphire occurs as (1) clastic heavy mineral in the secondary sandy filling of a Pliocene alkali basaltic maar at Hajnáčka, and (2) crystals in a pyroxenebearing syenite/anorthoclasite xenolith of Pleistocene alkali basalt near Gortva. Critical evaluation of compositional diagrams (Fe, Ti, Cr, Ga, Mg contents, Fe/Ti, Cr/Ga, Ga/Mg ratios) suggests a magmatic origin for clastic blue sapphires with lower Cr and Mg, but higher Fe and Ti concentrations in comparison to the grey-pink and pink varietes, as well as similar compositional trends with blue sapphire from the Gortva magmatic xenolith. Moreover, blue sapphires show similar 18O values: 5.1 in the Gortva xenolith, 3.8 and 5.85 in the Hajnáčka placer, closely comparable to mantle to lower crustal magmatic rocks. On the contrary, pink and grey-pink sapphires show higher Cr and Mg, but lower Fe and Ti contents and their composition points to a metamorphic (metasomatic) origin. ER -
UHER, Pavel, Gaston GIULIANI, Sandor SZÁKALL, Anthony FALLICK, Vladimír STRUNGA, Tomáš VACULOVIČ, Daniel OZDÍN and Markéta GREGÁŇOVÁ. Sapphires related to alkali basalts from the Cerová Highlands, Western Carpathians (southern Slovakia): composition and origin. \textit{Geologica Carpathica}. Bratislava: Slovak Akademy Press, 2012, vol.~63, No~1, p.~71-82. ISSN~1335-0552. Available from: https://dx.doi.org/10.2478/v10096-012-0005-7.
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