Methane-rich thermal and mineral waters of the Avachinsky Depression, Kamchatka

Taran, Yuri; Ryabinin, Gennady; Pokrovsky, B. G.; Malik, Natalia; Cienfuegos, Edith

doi:10.1016/j.apgeochem.2022.105414

Cited by 2 publications

(3 citation statements)

References 24 publications

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“…Chlorine-rich fluids are integral in promoting the differentiation and evolution of volcanic arc magmas [103][104][105][106][107] and facilitating the transport of ore metals such as copper and gold in crust-mantle systems above active subduction zones [108][109][110]. High concentrations of chlorine and sulfur have been measured directly in melt inclusions from calc-alkaline lavas [111], as well as in thermal and mineral waters discharged from the volcanic edifices between active volcanoes in Kamchatka [112], suggesting the presence of chlorine-rich fluid in both the mantle wedge and island-arc crust beneath the Kamchatkan volcanic province [65,68,70,[113][114][115].…”

Section: Discussionmentioning

confidence: 99%

Iron–Titanium Oxide–Apatite–Sulfide–Sulfate Microinclusions in Gabbro and Adakite from the Russian Far East Indicate Possible Magmatic Links to Iron Oxide–Apatite and Iron Oxide–Copper–Gold Deposits

Kepezhinskas,

Berdnikov,

Krutikova

et al. 2024

Minerals

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Mesozoic gabbro from the Stanovoy convergent margin and adakitic dacite lava from the Pliocene–Quaternary Bakening volcano in Kamchatka contain iron–titanium oxide–apatite–sulfide–sulfate (ITOASS) microinclusions along with abundant isolated iron–titanium minerals, sulfides and halides of base and precious metals. Iron–titanium minerals include magnetite, ilmenite and rutile; sulfides include chalcopyrite, pyrite and pyrrhotite; sulfates are represented by barite; and halides are predominantly composed of copper and silver chlorides. Apatite in both gabbro and adakitic dacite frequently contains elevated chlorine concentrations (up to 1.7 wt.%). Mineral thermobarometry suggests that the ITOASS microinclusions and associated Fe-Ti minerals and sulfides crystallized from subduction-related metal-rich melts in mid-crustal magmatic conduits at depths of 10 to 20 km below the surface under almost neutral redox conditions (from the unit below to the unit above the QFM buffer). The ITOASS microinclusions in gabbro and adakite from the Russian Far East provide possible magmatic links to iron oxide–apatite (IOA) and iron oxide–copper–gold (IOCG) deposits and offer valuable insights into the early magmatic (pre-metasomatic) evolution of the IOA and ICOG mineralized systems in paleo-subduction- and collision-related geodynamic environments.

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Section: Discussionmentioning

confidence: 99%

Iron–Titanium Oxide–Apatite–Sulfide–Sulfate Microinclusions in Gabbro and Adakite from the Russian Far East Indicate Possible Magmatic Links to Iron Oxide–Apatite and Iron Oxide–Copper–Gold Deposits

Kepezhinskas,

Berdnikov,

Krutikova

et al. 2024

Minerals

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“…The hydrogeology of the region is characterized by the presence of an unconfined aquifer (UA) composed of loose Quaternary deposits and a confined aquifer (CA) in the metamorphosed Late Cretaceous rocks [23,24]. The values of hydraulic conductivity coefficient of the water-bearing rocks in the UA are in tens of m/day.…”

Section: Geological and Technical Conditions Earthquake Datamentioning

confidence: 99%

“…(a) Location of the YuZ-5 well, epicenters and focal mechanisms of 1997-2020 earthquakes (Tables3 and 4). (b) Geological environment according to[22][23][24] with authors' additions. Designations: 1-observation well, 2-Petropavlovsk (PET) seismic station, 3-Pionerskaya meteorological station, 4-earthquake epicenters, 5-9-geological formations (5-Quaternary sedimentary deposits, 6-Quaternary volcanogenic deposits, 7-Quaternary lavas of modern volcanoes, 8-Neogene volcanogenic-sedimentary rocks, 9-Late Cretaceous metamorphosed volcanogenic-sedimentary rocks), 10-regional faults (1-Avachinsky, 2-Petropavlovsky), 11-faults (a-established, b-assumed), 12-depth to the metamorphosed basement in km, 13-tectonic structures (I-Avacha volcano-tectonic depression, II-Petropavlovsky horst, III-Nachikinskaya zone of fold-block dislocations), 14-direction of regional underground runoff.…”

mentioning

confidence: 99%

Seismo-Hydrogeodynamic Effects in Groundwater Pressure Changes: A Case Study of the YuZ-5 Well on the Kamchatka Peninsula

Копылова

Болдина

2023

Water

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Seismo-hydrogeodynamic effects (SHGEs) in groundwater level (pressure) variations in a range of periods from minutes to hours and days during local and teleseismic earthquakes were considered based on the data of precision observations in a deep piezometric well located in a seismically active region. With the use of the tidal analysis and frequency dependence of the barometric response of the water level, a static confined response of groundwater pressure in a range of periods from hours to the first tens of days was established. The annual water level trend was characterized by the seasonal function of a hydrostatic head change in the well. In the groundwater pressure, changes were detected due to several types of seismo-hydrogeodynamic effects: 1—the coseismic fluctuations during the first tens of seconds and minutes after the arrival of seismic waves from the earthquakes with magnitudes of 5.3–9.1 at epicentral distances of 80–700 km; 2—the supposed hydrogeodynamic precursors of the two strongest events; 3—the four types of variations under the vibration impact of seismic waves from Mw = 6.8–9.1 earthquakes at epicentral distances of 80–14,600 km. The dependence of the distinguished types of SHGEs on the earthquake parameters, the intensity of the seismic impact in the well area and the amplitude-frequency composition of seismic waves were considered.

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Methane-rich thermal and mineral waters of the Avachinsky Depression, Kamchatka

Cited by 2 publications

References 24 publications

Iron–Titanium Oxide–Apatite–Sulfide–Sulfate Microinclusions in Gabbro and Adakite from the Russian Far East Indicate Possible Magmatic Links to Iron Oxide–Apatite and Iron Oxide–Copper–Gold Deposits

Iron–Titanium Oxide–Apatite–Sulfide–Sulfate Microinclusions in Gabbro and Adakite from the Russian Far East Indicate Possible Magmatic Links to Iron Oxide–Apatite and Iron Oxide–Copper–Gold Deposits

Seismo-Hydrogeodynamic Effects in Groundwater Pressure Changes: A Case Study of the YuZ-5 Well on the Kamchatka Peninsula

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