Naslov
Fluid inclusions in "Marmarosh diamond-like", quartz crystals from Crngrob, Slovenia

Autori
Borojević-Šoštarić, Sibila ; Palinkaš, Ladislav ; Strmić-Palinkaš, Sabina ; Herlec, U.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Acta Mineralogica-Petrographica Abstract Series / Degi, J. ; Szabo, C. - Segedin : University of Szeged, 2003, 31-32

Skup
ECROFI XVII, 17th European Current research on fluid inclusions

Mjesto i datum
Budimpešta, Mađarska, 05.06.2003. - 07.06.2003

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
fluid inclusion; Marmarosh diamond; hydrocarbons; Crngrob; Slovenia

Sažetak
Similar quartz crystals, bearing hydrocarbon inclusions have been found in fissures and joints in the Carpatian flysh zone (“ Marmarosh diamonds", Vitky et al, 1995) and in low-temperature metamorphic and sedimentary rocks from many orogenic belts around the world " Herkimer diamonds" ; in the Apalachian Mauntins (Roedder, 1984), euhedral quartz crystals in alpine fissures in the Alps (Mullins et.al., 1993), Krym Mountains, Ukraine (Gigashvili et al., 1975) and Caucusus, Georgia (Akhvlediany and Gigashvili, 1975). Hydrocarbon inclusions in euhedral quartz crystals from Crngrob, Slovenia, are probably generated during neo-alpine uplift episode, at the late stage of continental collision. The morphology of quartz suggests growth in soft sediments, clay in the veins, of undetermined origin. The fluid inclusion data imply simple evolution of the hydrothermal system. The hot, moderately saline water, from the deeper source, affected organic-rich Triassic dolomites and distilled out higher hydrocarbons, gradually lowering the temperature, and ability to expel higher hydrocarbons except methane. Finally, hydrothermal water became avoided of organics but enriched in Ca-ion due to metasomatic replacement of limestones.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

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