The Raštelica barite deposit occurs in the lowest part of Permian carbonate rocks along their contact with underlying Middle Permian variegated sandstones. Mineralization is in form of a few twn ...meters long and 0,3 to 3 m thick conformable bedded lensoid bodies. Crude ore contains 90% of BaSO4. Bornite is the main copper mineral associated with chalcopyrite. Content of SrSO4 in barite is 4.4%. δ34S of sulphate sulphur is +9.5‰ indicating source of sulphur from the Permian sea water. Fluid inclusions were performed on quartz and barite crystals. Warming of frozen inclusions gave rise of four or five solid phases. Homogenization temperature for all inclusions were measured from +220 to +350°C. Salinity was obtained between 32.6 and 32.9 wt% NaCl equ. Most of features suggest submarine hydrothermal origin.
The Raštelica barite deposit occurs in the lowest part of Permian carbonate rocks along their contact with underlying Middle Permian variegated sandstones. Mineralization is in form of a few twn ...meters long and 0,3 to 3 m thick conformable bedded lensoid bodies. Crude ore contains 90% of BaSO4. Bornite is the main copper mineral associated with chalcopyrite. Content of SrSO4 in barite is 4.4%. δ34S of sulphate sulphur is +9.5‰ indicating source of sulphur from the Permian sea water. Fluid inclusions were performed on quartz and barite crystals. Warming of frozen inclusions gave rise of four or five solid phases. Homogenization temperature for all inclusions were measured from +220 to +350°C. Salinity was obtained between 32.6 and 32.9 wt% NaCl equ. Most of features suggest submarine hydrothermal origin.
Baritno ležište Raštelica formirano je u najdonjim nivoima permskih karbonatnih stijena duž kontakta sa srednjopermskim šarenim pješčenjacima. Orudnjenje ima oblik desetak metara dugih i 0.3 - 3 m debelih konkordantno uloženih slojevitih leća. Rovna ruda sadrži 90% BaSO4. Glavni bakarni mineral je oskudan bornit asociran sa halkopiritom. Sadržaj SrSO4 u baritu iznosi 4.40%. δ34S sulfatnog sumpora u baritu je +9.5‰ indicirajući na porijeklo sumpora iz permskog mora. Fluidne inkluzije su proučene na kristalima kvarca i barita. Zagrijavanjem inkluzija, prethodno zamrznutih na -75°C nastalo je četiri ili pet čvrstih faza. Temperatura homogenizacije iznosila je od +220 do +350°C. Salinitet je određen sa 32.6 do 32.9wt% NaCl equ. većina karakteristika ležišta upućuje na submarinski ekshalativnohidrotermalan postupak.
Baritno ležište Raštelica formirano je u najdonjim nivoima permskih karbonatnih stijena duž kontakta sa srednjopermskim šarenim pješčenjacima. Orudnjenje ima oblik desetak metara dugih i 0.3 - 3 m ...debelih konkordantno uloženih slojevitih leća. Rovna ruda sadrži 90% BaSO4. Glavni bakarni mineral je oskudan bornit asociran sa halkopiritom. Sadržaj SrSO4 u baritu iznosi 4.40%. δ34S sulfatnog sumpora u baritu je +9.5‰ indicirajući na porijeklo sumpora iz permskog mora. Fluidne inkluzije su proučene na kristalima kvarca i barita. Zagrijavanjem inkluzija, prethodno zamrznutih na -75°C nastalo je četiri ili pet čvrstih faza. Temperatura homogenizacije iznosila je od +220 do +350°C. Salinitet je određen sa 32.6 do 32.9wt% NaCl equ. većina karakteristika ležišta upućuje na submarinski ekshalativnohidrotermalan postupak.
The Raštelica barite deposit occurs in the lowest part of Permian carbonate rocks along their contact with underlying Middle Permian variegated sandstones. Mineralization is in form of a few twn ...meters long and 0,3 to 3 m thick conformable bedded lensoid bodies. Crude ore contains 90% of BaSO4. Bornite is the main copper mineral associated with chalcopyrite. Content of SrSO4 in barite is 4.4%. δ34S of sulphate sulphur is +9.5‰ indicating source of sulphur from the Permian sea water. Fluid inclusions were performed on quartz and barite crystals. Warming of frozen inclusions gave rise of four or five solid phases. Homogenization temperature for all inclusions were measured from +220 to +350°C. Salinity was obtained between 32.6 and 32.9 wt% NaCl equ. Most of features suggest submarine hydrothermal origin.
