Origin of sulfur species in acid sulfate-chloride thermal waters, northeastern Japan

Kiyosu, Yasuhiro; Kurahashi, Makoto

doi:10.1016/0016-7037(83)90065-0

Cited by 54 publications

(14 citation statements)

References 25 publications

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“…The low-density fluid (2-5 wt % NaCl equiv) presumably formed in the near-surface conditions through absorption of metalrich gases exsolved from magma into ground waters. Acid sulfate-chloride waters in the regions of recent volcanic activity are generated by interaction between ground waters and SO 2 , which exsolved from a magmatic chamber and disproportionated into sulfate and sulfide S in water (Kiyoshu and Kurahashi, 1983). Magmatic and meteoric fluids also contributed to hydrothermal-magmatic systems that produced vein silver-base-metal deposits of the Verkhoyansk fold belt.…”

Section: Discussionmentioning

confidence: 99%

“…Fluid with such an isotope composition can be derived in the following way: acid sulfate-chloride waters formed by mixing of ground waters and SO 2 , which was exsolved from a magmatic chamber, disproportionating into sulfate and sulfide S (Kiyoshu and Kurahashi, 1983). Therefore, Late stage the hypothesis of involvement of mantle sulfur in the ore formation seems to be preferable.…”

Section: Sulfur and Oxygen Stable Isotpesmentioning

confidence: 98%

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Geochemistry and origin of the ore-forming fluids in hydrothermal-magmatic systems in tectonically active zones

Бортников

2006

Geol. Ore Deposits

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Data on fluid inclusions and stable isotope compositions (O, H, C, and S) in minerals have been summarized for large-and middle-scale mesothermal gold deposits (Nezhdaninsk, Berezovsk, Kochkar', Svetlinsk, Darasun, and Maisk), cassiterite-silicate-sulfide deposits of Sikhote Alin (Solnechnoe, Arsen'evsk, and Vysokogorsk), vein silver-base metal deposits in the Southern Verkhoyansk region (Prognoz and Kupol'noe), and epithermal copper-bismuth-silver-base metal deposits of the Karamazar district in Tajikistan (Kanimansur, Tary Ekan, and Zambarak). It is shown that ores precipitated from fluids with salinity varying from brines (up to 60 wt % NaCl equiv) to dilute fluids (1-3 wt % NaCl equiv). As a rule, fluids of different compositions entered the hydrothermal-magmatic system. A fluid mixture of ç 2 é-ëé 2 -NaCl ± CH 4 ± N 2 predominated in the orogenic (mesothermal) gold-bearing hydrothermal systems, with deposition of the final-stage gold-bearing sulfosalts from aqueous-salt fluid. Brines played a significant role in the formation of cassiterite-silicate-sulfide and vein silver-base metal deposits. The brines often coexisted with a low-density vapor-rich fluid at the ore deposition site. The obtained data suggest a predominant magmatic component in the hydrothermal-magmatic systems, with a significant contribution of meteoric waters.

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Section: Discussionmentioning

confidence: 99%

Section: Sulfur and Oxygen Stable Isotpesmentioning

confidence: 98%

Geochemistry and origin of the ore-forming fluids in hydrothermal-magmatic systems in tectonically active zones

Бортников

2006

Geol. Ore Deposits

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“…Sulfur compounds are common constituents of the gaseous, aqueous, and solid phases of acid geothermal fluid of volcanic origin (26). At the point of surface discharge, gas-phase components typically include sulfur dioxide (SO 2 ), hydrogen sulfide (H 2 S), and elemental sulfur vapor (29,35), while the solid phase is typically comprised of flocculent S 0 (29,31).…”

mentioning

confidence: 99%

Isolation, Characterization, and Ecology of Sulfur-Respiring Crenarchaea Inhabiting Acid-Sulfate-Chloride-Containing Geothermal Springs in Yellowstone National Park

Boyd

Jackson

Encarnacion

et al. 2007

Appl Environ Microbiol

100

121

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Elemental sulfur (S 0 ) is associated with many geochemically diverse hot springs, yet little is known about the phylogeny, physiology, and ecology of the organisms involved in its cycling. Here we report the isolation, characterization, and ecology of two novel, S 0 -reducing Crenarchaea from an acid geothermal spring referred to as Dragon Spring. Isolate 18U65 grows optimally at 70 to 72°C and at pH 2.5 to 3.0, while isolate 18D70 grows optimally at 81°C and pH 3.0. Both isolates are chemoorganotrophs, dependent on complex peptidecontaining carbon sources, S 0 , and anaerobic conditions for respiration-dependent growth. Glycerol dialkyl glycerol tetraethers (GDGTs) containing four to six cyclopentyl rings were present in the lipid fraction of isolates 18U65 and 18D70. Physiological characterization suggests that the isolates are adapted to the physicochemical conditions of Dragon Spring and can utilize the natural organic matter in the spring as a carbon and energy source. Quantitative PCR analysis of 16S rRNA genes associated with the S 0 flocs recovered from several acid geothermal springs using isolate-specific primers indicates that these two populations together represent 17 to 37% of the floc-associated DNA. The physiological characteristics of isolates 18U65 and 18D70 are consistent with their potential widespread distribution and putative role in the cycling of sulfur in acid geothermal springs throughout the Yellowstone National Park geothermal complex. Based on phenotypic and genetic characterization, the designations Caldisphaera draconis sp. nov. and Acidilobus sulfurireducens sp. nov. are proposed for isolates 18U65 and 18D70, respectively.

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“…Extremely acid solutions at about 380-m depth may be formed when the SOa disproportionated into HaSO4 and HaS (Kiyosu and Kurahashi, 1983;Bethke, 1984). Sulfur isotope data from pyrite and alunite are consistent with equilibrium fractionation during disproportionation at temperatures over 200øC (Hedenquist et al, 1988), though these two minerals have not been found to coexist.…”

Section: Gold Mineralization and Breccia Pipesmentioning

confidence: 55%

Hydrothermal breccia pipes and gold mineralization in the Iwashita Orebody, Iwato Deposit, Kyushu, Japan

Izawa¹,

Cunningham²

1989

Economic Geology

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Origin of sulfur species in acid sulfate-chloride thermal waters, northeastern Japan

Cited by 54 publications

References 25 publications

Geochemistry and origin of the ore-forming fluids in hydrothermal-magmatic systems in tectonically active zones

Geochemistry and origin of the ore-forming fluids in hydrothermal-magmatic systems in tectonically active zones

Isolation, Characterization, and Ecology of Sulfur-Respiring Crenarchaea Inhabiting Acid-Sulfate-Chloride-Containing Geothermal Springs in Yellowstone National Park

Hydrothermal breccia pipes and gold mineralization in the Iwashita Orebody, Iwato Deposit, Kyushu, Japan

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