Sapphires related to alkali basalts from the Cerová Highlands, Western Carpathians (southern Slovakia): composition and origin

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. 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.

Basic information

• Original name: Sapphires related to alkali basalts from the Cerová Highlands, Western Carpathians (southern Slovakia): composition and origin
• Authors: UHER, Pavel (703 Slovakia, guarantor), Gaston GIULIANI (380 Italy), Sandor SZÁKALL (348 Hungary), Anthony FALLICK (826 United Kingdom of Great Britain and Northern Ireland), Vladimír STRUNGA (703 Slovakia, belonging to the institution), Tomáš VACULOVIČ (203 Czech Republic, belonging to the institution), Daniel OZDÍN (703 Slovakia) and Markéta GREGÁŇOVÁ (703 Slovakia).
• Edition: Geologica Carpathica, Bratislava, Slovak Akademy Press, 2012, 1335-0552.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10406 Analytical chemistry
• Country of publisher: Slovakia
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• Impact factor: Impact factor: 1.143
• RIV identification code: RIV/00216224:14740/12:00060079
• Organization unit: Central European Institute of Technology
• Doi: http://dx.doi.org/10.2478/v10096-012-0005-7
• UT WoS: 000301748900005
• Keywords in English: Western Carpathians; Slovakia; Hajnáčka; Gortva; CL; LA-ICP-MS; EMPA; oxygen isotopes; placer; alkali basalts; anorthoclasite xenolith; corundum; sapphire
• Tags: ok, rivok

Abstract

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.

Links

• MSM0021622411, plan (intention): Name: Studium a aplikace plazmochemických reakcí v neizotermickém nízkoteplotním plazmatu a jeho interakcí s povrchem pevných látek

Investor: Ministry of Education, Youth and Sports of the CR, Study and application of plasma chemical reactions in non-isothermic low temperature plasma and its interaction with solid surface

• MUNI/G/0124/2009, interní kód MU: Name: Syntéza a analýza minerálních analogů a standardů

Investor: Masaryk University, Category G - development project + specific research