Substance composition produced by mud volcanoes of Sakhalin Island and Azerbaijan: the first comparison

Nikitenko, O. A.; Ershov, V. V.; Perstneva, Ju.A.; Bondarenko, D. D.; Baloglanov, Elnur E.; Abbasov, O. R.

doi:10.30730/2541-8912.2018.2.4.346-358

Cited by 3 publications

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“…The Our earlier comparative analysis of the substance composition of the products of the mud volcanoes activity in Azerbaijan and Sakhalin Island showed the Sakhalin volcanoes to be some distinct from Azerbaijani ones by the geochemical composition of liquid, solid, and gaseous emissions, in addition to differences in morphological characteristics and intensity of paroxysmal activity [Nikitenko et al, 2018]. Moreover, mud volcanoes on Sakhalin Island differ greatly from each other by morphology, occupied area, paroxysmal and gryphon-salse activity stages.…”

Section: Resultsmentioning

confidence: 98%

“…Тренды I и III периодов предшествовали землетрясениям с М w = 7.2-8.1 на расстоянии до 1000 км от PRTR в районе, приуроченном к северо-западному обрамлению Тихого океана. Тренд IV длительностью ~3 года (2016)(2017)(2018) в максимуме имел самые большие значения ОА Rn, а в последние два года отмечено падение значений ОА Rn до минимальных за весь период наблюдений. Следует добавить, что подобное поведение динамики ОА Rn наблюдалось и в пункте INSR (рис.…”

Section: заключениеunclassified

“…Наблюдения за поведением ОА Rn в течение длительного периода на Петропавловск-Камчатском геодинамическом полигоне позволяют утверждать о наличии определенной связи между ОА Rn и сильными землетрясениями с магнитудой М w > 7.5 северо-западного обрамления Тихого океана [Фирстов, 2014; Фирстов, Макаров, 2018; Фирстов и др., 2018]. Под северо-западным обрамлением Тихого океана подразумевается область, где происходит взаимодействие трех крупнейших на земном шаре плит: Евразийской (EUR), Тихоокеанской (РАС) и Североамериканской lasting from 8 months to 3 years.…”

Section: Introductionunclassified

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Геосистемы переходных зон Том 4 № 3 2020 Июнь-Сентябрь Научный журнал Учредитель и издатель: ФГБУН Институт морской геологии и геофизики Дальневосточного отделения Российской академии наук Издается с 2017 г. Периодичность издания 4 раза в год

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Section: Resultsmentioning

confidence: 98%

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“…The eruption products of the Sakhalin MVs include the gas, water, and solid components. South Sakhalin and Pugachev MVs differ in the relative percentages of emitted gases: more carbon dioxide in the former (up to 95 vol% CO 2 against 5 to 35% CH 4 ) and more methane in the latter (50% to 85% CH 4 against 40% CO 2 ), with minor amounts of oxygen and nitrogen [61,62].…”

Section: General Characteristic Of Eruption Products Of Pugachev and South Sakhalin Mvsmentioning

confidence: 99%

“…The MV waters of South Sakhalin volcano have HCO 3 -Cl/Na-Mg chemistry (dominated by HCO 3 ) and low salinity (TDS, total dissolved solids), which is common to waters of this kind in the Pacific active belt [21,42,[62][63][64]. During the field observations of 2018, active bubbling salsas (gas flow 7.1-20.8 mL/s) emitted MV water with Eh av.…”

Section: General Characteristic Of Eruption Products Of Pugachev and South Sakhalin Mvsmentioning

confidence: 99%

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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Geochemical proxies of the gryphon breccia of mud volcanoes in East Azerbaijan: regularities in the distribution of chemical elements and spatial characteristics of sedimentation

Baloglanov

2023

Visnyk of V.N. Karazin Kharkiv National University, Series Geology. Geography. Ecology

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The paper is devoted to the study of the patterns of distribution of major oxides and trace elements in the gryphon breccia of 12 active mud volcanoes located in various oil and gas regions (Absheron, Gobustan and Lower Kura) of Azerbaijan. Interpretations of the chemical elements found in gryphon breccia samples have allowed the composition of their source rocks, sedimentation conditions, and sedimentation areas to be determined. Purpose. The main goal of the study is to conduct geochemical studies of gryphon breccias belonging to various oil and gas regions, determine spatial patterns, achieve their explanation, and at the same time determine the conditions for the deposition of mud sediments. Methods. The chemical composition of mud volcanic breccia samples was analyzed using an “S8 TIGER Series 2” spectrometer and an “Agilent 7700 Series ICP-MS” mass spectrometer. Based on the results obtained, in addition to identifying patterns in the areas, modern approaches based on geochemical interpretation were used to explain them. The results on the genesis of breccias are consistent with the results of the published literature on the development of geodynamic and paleobasin conditions in the region. Results. Samples with the lowest Si content are characteristic of the Lower Kura mud volcanoes, where the youngest (Quaternary) deposits are recorded. In samples from these mud volcanoes, relatively high contents of Mg and P are also noticeable. High contents of Ca are characteristic of volcanoes located near the Caspian Sea. These mud volcanoes are also rich in trace elements such as Li, Ga, Rb, Zr, Mo, Cs, Pr, Tl, Pb, Th, U and others, but depleted in Ni, Sr, Ba and etc. Conclusions. Plagioclase-rich source rocks and oxygen-dominated paleobasin environments played a key role in the formation of breccia deposits belonging to the mud volcanoes of Azerbaijan. Geochemical proxies make it possible to link the paleobasin conditions of the formation of the gryphon breccia of the most mud volcanoes of South and Central Gobustan with the continental setting, especially in comparison with some volcanoes of the Lower Kura, as well as Gobustan and Absheron, located on the shores of the Caspian Sea and relatively close to it. The breccias of mud volcanoes located at a relatively large distance from the modern sea boundary and in the steepest northern part of the Lower Kura are associated with marine conditions, as are breccias of mud volcanoes located in the south of this tectonic zone (subjected to intense subsidence) and at a short distance from the Caspian Sea, may be due to geological factors.

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Substance composition produced by mud volcanoes of Sakhalin Island and Azerbaijan: the first comparison

Cited by 3 publications

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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

Geochemical proxies of the gryphon breccia of mud volcanoes in East Azerbaijan: regularities in the distribution of chemical elements and spatial characteristics of sedimentation

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