Supplementary table
Fluid inclusion data of carbonatite of the Central Tuva region (South Siberia, Russia)
Carbonatite occurrence / Carbonatite type / Host mineral / Type/Phase composition of inclusion / Тm. NaCl, °С / Тm.KCl, °С / Тhom. inclusion,°С / P, MPa / Total salt concentration, wt.% / Daughter-phase composition*
Karasug / Ankerite-calcite / Quartz / Melt
carbonate / --- / --- / 790-820 / --- / 97 - 99 / Ankerite
Phlogopite / Melt
silicate-carbonate / > 500 / Silicate phase - 50-70 vol.%.
Carbonate phase –
30-50 vol.% / Silicate phase:
Si, Al, Ca, Na, K, Fe, Mg, Ti, O, Cl Ankerite:
Ca, Fe, Mg, CO2
Quartz / Brine-melt
NaCl-KCl + 1-5 cr.ph.- H2O-CO2(L) / 450-480 / 340-360 / 620-640 / 340 –350 / ~ 87.5-95
Carbonate phase –
10-50
Chlorides - 40-75 / Halite
Sylvite
Calcite /
Ankerite
Ulatai / Apatite / Brine-melt
5-8 cr.ph. + fluid / --- / --- / 610-650 / --- / > 80 / Silicates, carbonates, chlorides, fluorides
Ca, Na, K, Mg, Fe
REE-phase (bastnäsite)
Teeli-Orgudyd / Ankerite-calcite / Quartz / Brine-melt
NaCl-KCl + 1-4 cr.ph.- H2O-CO2(L) / 460-490 / 330-370 / 580-610 / 340-350 / 75 - 80
NaCl - 38-40
KCl - 37-35 / Halite
Sylvite
Calcite
Fluorite / 450-490 / 330-360 / 570-620 / 340-350 / Halite
Sylvite
Carbonate
Karasug / Siderite / Quartz / Brine-melt
NaCl-KCl + 2-5 cr.ph.- H2O-CO2(L) / 400-450 / 300-350 / 550-600 / 290-330 / 87 - 92
NaCl
45-48
KCl
32-30
Siderite 10-15 / Halite
Sylvite
Siderite
Anhydrite
Ancylite-Ce
Fe-copiapite
Fluorite / 450-470 / 250-300 / > 500 / 320-350 / 75 – 77
NaCl - 42-47
KCl - 28-30 / Halite
Sylvite
Siderite
Bastnäsite
Silicate
Barite-celestite
Galena
Ulatai / Fluorite / 460-480 / 260-300 / 580-650 / 320-360 / 73 – 85
NaCl - 43-45
KCl - 30-40 / Halite
Sylvite
Siderite
Bastnäsite, barite-celestite, hematite, galena
Karasug / Ankerite-calcite / Quartz / Multiphase fluid of high salinity (primary)
KCl-NaCl + 2-3 cr..ph.- H2O-CO2(L) / 380-400 / 100-120 / 470-490 / 220-280 / 48 - 60
NaCl - 33-35
KCl - 15-25
Carbonate - 2-5 / Halite
Sylvite
Calcite
Teeli-Orgudyd
South Choz,
North-Choz / Fluorite / 390-410 / 110-120 / 430-480 / 210-270 / 40 - 60
NaCl -30-45
KCl - 15-10
Carbonate - 5-10 / Halite
Sylvite
Carbonate phase
Karasug / Siderite / Quartz / 240-250 / 220-250 / 420-480 / 200-250 / 40 – 60
KCl - 30-45
NaCl - 10-15
Sulphates - 2-5 / Halite
Sylvite
Anhydrite
Barite-celestite,
Thenardite
Bastnäsite
Ulatai / Fluorite / 230-260 / 220-240 / 440-470 / 220-270
Ulatai / Siderite / Fluorite / Multiphase fluid of high salinity (secondary)
KCl-NaCl + 1-3 cr.ph.- H2O-CO2(L) / 200-220 / 200 / 300-380 / 180-230 / 30 – 40
NaCl - 10-25
KCl - 30-15 / Halite
Sylvite
Anhydrite, thenardite, Barite-celestite
Teeli-Orgudyd
South Choz,
North-Choz / Ankerite-calcite / Quartz / Multiphase fluid
(secondary):
KCl / NaCl + 1-3 cr.ph.- H2O-(CO2-N2) / 220-230 / 210-240 / 300-380 / 200-230 / 30 – 40
NaCl - 10-25
KCl - 30-15
Carbonate 1-5 / Halite
Sylvite
Carbonate
Teeli-Orgudyd / Ankerite-calcite / Quartz / Multiphase and two-phase
H2O- NaCl/KCl -СО2(G/L) / 100-150 / --- / 250-300 / 50-75 / 15 - 30
NaCl –eq. / Halite
Ulatai / Siderite / Fluorite / --- / 120-150 / 280-300 / 50-75 / Sylvite
Gaylussite
Karasug,
Ulatai,
Teeli-Orgudyd / Veins of late minerals / Quartz Calcite
Fluorite / H2O-СО2(G) ± NaCl / 180-200 / --- / 150-250 / < 50 / 15 - 5 / Halite
Gaseous
H2O-СО2(G) / --- / --- / 100-150 / < 1
Abbreviations: Tm – melting temperature of the salt component; Thom - homogenisation temperature of inclusion; cr. ph - crystalline phase; "---" - parameter is not detected, * - the composition of the crystalline phase indicated by Raman spectroscopy and SEM analyses.