Geological-geomorphological and landscape-ecological features of the Pugachev Mud Volcano as a basis for organization and information support of the tourist route (Sakhalin Island)

Mishurinskij, D.V.; Ershov, V. V.; Zharkov, R.V.; Копанина, А.В.; Козлов, Д. Н.; Лебедева, Е. В.; Abdullaeva, I.V.; Vlasova, I.I.; Mikhalev, D.V.

doi:10.30730/2541-8912.2018.2.4.398-408

Cited by 1 publication

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“…The Pugachev MV field is a 10 m high flat-topped gently sloping hill reaching 58 m asl, on a 2.5 km × 2 km base, extending in the NE-SW direction. Main Pugachev MV erupted more than twenty times between 1906 and 2006, with a recurrence of 70 years for large eruptions (2000-8000 m 3 of total ejecta) and 1 to 3 years for small eruptions [30,[37][38][39]. Mud volcanism shows no distinct correlation with seismic events, except for the large eruption of 2000, which was triggered by the M S = 7.0 (I 0 = 8-9) Uglegorsk earthquake of 4 August 2000 to a high probability [40].…”

Section: Pugachev Mud Volcanomentioning

confidence: 99%

“…The instrument was tuned to ThO/Th ratios of <0.3% and U/Th ratios of ~100%, doubly charged cations were tuned to <0.4% using SRM NIST610, and SRM NIST612 as unknown. The measured isotopes were: 24 Mg, 27 Al, 28 Si, 33 S, 34 S, 39 K, 43 Ca, 44 Ca, 51 V, 52 Cr, 55 Mn, 56 Fe, 57 Fe, 59 Co, 60 Ni, 65 Cu, 66 Zn, 70 Ge, 71 Ga, 75 As, 82 Se, 95 Mo, 107 Ag, 111 Cd, 115 In, 121 Sb, 125 Te, 197 Au, 202 Hg, 205 Tl, 208 Pb, 209 Bi and 238 U.…”

Section: Analytical Proceduresmentioning

confidence: 99%

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Ge-Hg-Rich Sphalerite and Pb, Sb, As, Hg, and Ag Sulfide Assemblages in Mud Volcanoes of Sakhalin Island, Russia: An Insight into Possible Origin

et al. 2021

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We characterize the mineralogy and geochemistry of Fe, Zn, Pb, Sb, As, Hg, Ag sulfide assemblages from mud masses currently extruded by the onshore South Sakhalin and Pugachev mud volcanoes (Sakhalin Island, Russia). Abundant Tl-rich pyrite in sulfide concentrate samples from the mud volcanoes coexists with common Hg- and Ge-rich sphalerite, as well as with sporadic boulangerite, robinsonite, bournonite, galena, realgar, metacinnabar, cinnabar, acanthite, and chalcopyrite. Sphalerites are remarkably enriched in Hg (locally reaching 27 wt%) and coupled zwith permanent abnormal enrichment in Ge (3008–3408 ppm). According to single-crystal XRD analyses and Raman spectroscopy, both Hg-poor and Hg-rich sphalerites are single-phase (Zn,Hg)Scub compounds. Pyrite is of diagenetic origin, judging by its trace-element chemistry, particular morphology, and heavy S isotope composition. Another assemblage, composed of Pb-Sb-(Hg) sulfide minerals and lesser As, Cu, Ag, and Bi compounds, results from hydrothermal alteration and is genetically related to Neogene volcano-sedimentary rocks found among the ejecta of the mud volcanoes. The composition of impurities in sphalerite from mud masses indicates crystallization at temperatures lower than ~100 °C, under the leaching effect of mud volcano waters.

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Section: Pugachev Mud Volcanomentioning

confidence: 99%