J 2012

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 et. al.

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

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10406 Analytical chemistry

Country of publisher

Slovakia

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 1.143

RIV identification code

RIV/00216224:14740/12:00060079

Organization unit

Central European Institute of Technology

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

Změněno: 11/4/2013 10:36, Olga Křížová

Abstract

V originále

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