Renat Shakirov

Renat Shakirov
V.I. Il'ichev Pacific Oceanological Institute | POI · Gasgeochemistry Lab, Joint Russian-Vietnam Laboratory for marine geosciences

Dr.Sc.

About

141
Publications
21,573
Reads
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421
Citations
Additional affiliations
April 2017 - present
V.I. Il'ichev Pacific Oceanological Institute
Position
  • Head of Department
September 2007 - May 2008
Far Estern Federal University
Position
  • Professor (Assistant)
Description
  • Gasgeochemistry course lectures
October 1997 - present
V.I. Il'ichev Pacific Oceanological Institute
Position
  • Senior Researcher
Education
September 1992 - July 1997
Far Eastern Federal University
Field of study
  • geology

Publications

Publications (141)
Article
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This investigation presents methane, noble gas isotopes, CTD, and stable isotopic data for water samples collected in Niskin bottles at Tatar Strait during the spring seasons of 2015 and 2019 onboard the Russian R/V Akademik M.A. Lavrentyev. The results are compared to previous research carried out in 1999 in a nearby portion of the Strait and demo...
Article
The peculiarities of the rare-earth elements distribution in the surface bottom sediments in the Gulf of Tonkin (South China Sea) are considered. According to the results of granulometric analysis, the sediments are mainly represented by pelitic silt, silty pelite, and miktites. The REE contents normalized to the chondrite composition show the abse...
Article
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Estimation of groundwater recharge from rainfall is a key factor for determining groundwater resources in water development and management for supporting sustainable socioeconomic development, especially for arid areas. The paper presents finite element modeling in the simulation of moisture transfer in unsaturated soils through the relationship be...
Article
The paper presents brief results of comprehensive studies of the water area of the Tatar Strait and Sea of Japan obtained on cruise 61 of the R/V "Akademik Oparin" in November-December 2020. The bottom relief and geophysical and gas-geochemical fields were refined, and new features of the geochemistry and mineralogy of bottom sediments were reveale...
Book
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The monograph presents the results of joint scientifi c Russian-Vietnamese integrated expedition onboard RV “Akademik M.A. Lavrentiev” (cruise 88), carried out 5.10–08.12.2019. The primary results of the geological structure and geophysical fi elds of the Vietnam continental shelf and slope and deep basins, the study of oceanographic, gasgeochemica...
Article
The distribution and enrichment of trace metals in sediments of the South China Sea along the entire coast of Vietnam were described. The concentrations of Cr, Ni, Zn, and Pb in the sediments showed a significant positive correlation with fine-sized fractions and TOC. In contrast, the concentration of As was not positively correlated with particle...
Article
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World research results indicate that untreated leachate contains high contents of heavy metals that are likely to pollute the soil and groundwater (GW) environment. Most studies have shown that soil and GW in the waste landfill sites and adjacent areas are not polluted by heavy metals at levels greater than those allowable levels for agricultural l...
Article
The review is devoted to the biodiversity of microorganisms capable of degrading oil hydrocarbons in sea deep sediments and their relationship with the accompanying microbiota, which includes sulfate-reducing and denitrifying prokaryotes. Particular attention is paid to the biodiversity of hydrocarbon-oxidizing bacteria, in particular thermo- and h...
Article
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This study presents the chemical, mineralogical and physicochemical features of 8 saline mud samples from 8 gravity cores located in the southwestern sub-basin of the East Vietnam Sea. The grain-size analysis of mud samples reveals the amount of clay and silt particles in the ranges of 65.1-89.2% and 9.5-34.2%, respectively and a very low fraction...
Article
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For the first time, methane fluxes at the water-atmosphere interface were calculated for the water area of Pacific, Indian, and Atlantic oceans (for the area about 30,000 miles) on the basis of the expeditionary measurements of methane concentrations in the surface layer of water and subsurface layer of the atmosphere along the entire course of the...
Article
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Vietnam is a country with diverse and abundant mineral resources with nearly 5000 mines and ore spots of about 60 different minerals. Mining and processing of mineral resources have contributed about 9.6– 10.6% of the country’s GDP since the year of 2000. However, the exploitation and processing of mineral resources have been leading to a certain s...
Article
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В статье приведены результаты комплексных исследований пространственного распределения потоков метана в районе северного замыкания Центральной котловины Японского моря и в южной части Татарского трога. Установлено, что на изученной акватории происходит эмиссия метана, при этом значения потоков отличаются неравномерным распределением по площади от 1...
Article
Full-text available
We present results of an integrated research into the spatial distribution of methane in the area of the northern closure of the Central Basin of the Sea of Japan and in the southern part of the Tatar Trough. Methane emissions have been revealed in the study area. The methane fluxes are distributed unevenly within the area (1 to 23 mol/(km 2 ·day))...
Article
For the first time, this paper presents the distribution of gases (CO2, hydrocarbon C1-C4, H2, He) in 39 gas samples in bottom sediments from 19 gravity cores located in the southwestern sub-basin of the South China Sea (known as Bien Dong). The surface sediments in the studied area are mostly clay and silty clay (mud). In general, the concentratio...
Article
Full-text available
The paper gives brief results of comprehensive studies in the South China Sea obtained from a joint Russian-Vietnamese expedition in November 2019 (cruise 88 of the R/V "Akademik M.A. Lavrentyev"). The set of methods included acoustics, geophysics, geology, mineralogy,geochemistry, paleogeography, geomicrobiology, hydrooptics and hydrology. The sea...
Article
Full-text available
This paper presents the research data on methane distribution in the area of the most noticeable gas discharges in the Deryugin Basin of the Sea of Okhotsk. In the East Deryugin graben, a unique methane seep is known, which spatially coincides with the local authigenic barite-carbonate mineralization. The question of the source nature, which is ass...
Chapter
The paper presents new findings of the thermophilic and mesophilic methanotrophic microorganisms in the study site in the Bransfield Strait (deeper than 1000 m). The gas-geochemical survey revealed single methane vent at a depth of 1397 m bss with a high methane concentration (43 nmol/l) in the bottom water layer. A methane saturated (10.29–14.46 n...
Article
The article presents data on the distribution of bioindicator thermophilic hydrocarbon-oxidizing microorganisms in the surface layer of bottom oil and gas bearing sediments in the Kara Sea and their interrelation with methane content. Cultivated thermophilic microorganisms capable of using oil hydrocarbons as the only carbon source found in the zon...
Article
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Phu Quy volcanic island is formed following at least two major volcanic eruptions at ca. 2.64 Ma and 1.32 Ma. The early episode appeared as fissure eruptions producing a shield-like basement comprising of tholeiitic basalt to sub-alkaline (olivine basalt). The later episode occurred as a monogenic volcanic, explosive eruption producing mainly sub-a...
Article
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Gas-geochemical studies of the methane, helium, and hydrogen concentrations in the water of thermal and mineral springs, as well as the subsurface atmosphere, of northern Vietnam showed that the region is in the hypabyssal degassing zone of hydrogen and helium flowing to the surface through a fault system in the Earth's crust. A joint transit of th...
Article
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Обзор посвящен описанию структурно-функциональных и физиолого-биохимических особенностей метанотрофов, обитающих в экотопах с низкими и высокими температурами. Показано, что в холодных экосистемах обитают метанотрофы I типа, для которых характерны ассимиляция углерода по рибулозомонофосфатному пути, преобладание жирных кислот с 16 атомами углерода,...
Article
Морские донные отложения представляют собой крупнейший резервуар органических веществ на Земле. Биогеохимический цикл метана в воде связывает aнаэробную деструкцию органического вещества с процессами продукции. Этот цикл состоит из образования и окисления метана, в которых участвуют специализированные группы микроорганизмов, играющие важную роль в...
Article
Paper presents the results of complex gas-geochemical studies of bottom sediments of the East Siberian Sea along the meridional profile from Cape Billings to the Mendeleev Ridge. Abnormal concentrations of methane (up to 2.4% vol.) and hydrogen (up to 600 ppm) are controlled by neotectonic faults and are typical for the areas of gas hydrate formati...
Article
Full-text available
The Russian Far East is a region between China and the Russian Arctic with a diverse climatological, geophysical, oceanic, and economical characteristic. The southern region is located in the Far East monsoon sector, while the northern parts are affected by the Arctic Ocean and cold air masses penetrating far to the south. Growing economic activiti...
Article
Рассматривается распространение подводных газогидратов как результат взаимодействия различных природных факторов, действующих в придонной толще осадочных пород и водных слоях морей Восточной Азии. В работе определены факторы, причинно-следственные связи между ними, выявлены наиболее значимые условия, способствующие образованию подводных газогидрато...
Article
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—We present the results of gas-geochemical surveys in the sea surface water layer, water column, and bottom sediments of the Tatar Strait (north of the Sea of Japan) in 2012, 2014, 2015, 2017, and 2018. The distribution of methane fluxes at the water–atmosphere interface is examined, and its relationship with the geologic structure of the Tatar Str...
Article
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The distributions of hydrocarbon gases (HCGs) from C1-C5 in seafloor sediments of the South Tatar sedimentary basin (northern Sea of Japan) were obtained during five research cruises from 2012 to 2017. As a result of this work, areas of gas hydrates, gas flares, and anomalous gas concentrations were discovered. The concentration of HCGs in seafloor...
Article
Siboglinids are a characteristic feature of reducing environments. More than 75% of all siboglinids were found in the Sea of Okhotsk at a depth of less than 400 m, while some species are known to inhabit the abyssal depth in other regions. Among the six species of siboglinids encountered in the Sea of Okhotsk, only two are widespread: Siboglinum ca...
Article
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В ноябре 2019 г. в Южно-Китайском море (исключительная экономическая зона СРВ) впервые за последние 30 лет была проведена крупная комплексная геолого-геофизическая совместная экспедиция ТОИ ДВО РАН и Вьетнамской академии наук и технологий (88-й рейс НИС «Академик М.А. Лаврентьев»). Области изучения – геофизика, геология, гидроакустика, газогеохимия...
Article
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The results of a study of authigenic carbonate nodules found in bottom sediments on the south-western continental slope of Peter the Great Bay, Sea of Japan, are presented. The concretions were recorded in the aleuropelitic sediments, presumably of late Pleistocene-Holocene age, with abnormally high methane concentrations (up to 13% vol.). X-ray di...
Article
Introduction. Currently, sea territories for production and exploration of hydrocarbon raw materials and ore deposits have been increased. Geochemical survey of seafloor sediments is of great interest among direct methods for finding deposits. One of the most important objects for such work is the Tatar Strait, in the territory of which high concen...
Article
Full-text available
The Simclast model has been verified and applied effectively in simulating the delta development for some major deltas in the world. In this study, we applied the model Simclast for simulating the history of the Red river delta development in late Pleistocene-Holocene. Results of the model reveal that the mainland of study area had reduced rapidly...
Article
В Южном океане концентрация углеводородов нефти антропогенного происхождения минимально по сравнению с мировым океаном. Большинство как алифатических, так и ароматических углеводородов имеет биогенное происхождение. В условиях низких температур, невысоких концентраций органического вещества наиболее распространенными группами алканотрофных бактерий...
Article
Full-text available
The Red River delta with an area of about 12 620 km 2 is one of the largest deltas of Viet Nam and it also is one of the remarkable deltas of Asia. The delta was formed during the Holocene, mainly from 9000 years ago to the present. The Red River delta belongs to the NW tip of the large tertiary basin that is the Red River basin (Song Hong basin)....
Article
Full-text available
The Southwestern part of the Central Oceanic Basin of the East Vietnam Sea is the transition zone between Southeast continental shelf and the East Sea oceanic crust. The topography of the seabed in the study area is characterized by a bottom divergence zone, subsidence along the Northeast-Southwest spreading ridge axis with the depth ranging from 3...
Article
Full-text available
For the first time subannual variability of methane fluxes on the water-atmosphere border in the water area of the Sea of Okhotsk, located eastward to Sakhalin Island, is shown. Variability of methane fluxes is determined by the presence and activity of submarine methane sources and is connected to the seasonal changes in hydrological and hydrochem...
Article
Full-text available
The paper presents the effects of gasgeochemical survey in the upper layer and water column, as well as in bottom sediments in the Tatar Strait (the North of the Sea of Japan) in 2012, 2014, 2015 and 2017. The features of methane, hydrogen, and helium distribution in the water column and sediments of the Tatar Strait were identified. The elevated m...
Article
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21, 22]. УДК [551.35:552.313](265.53+265.54) ЭВОЛЮЦИЯ ГАЗОВЫДЕЛЕНИЙ В ОХОТСКОМ МОРЕ КАК СЛЕДСТВИЕ МЕЛ-КАЙНОЗОЙСКОЙ ТЕКТОНО-МАГМАТИЧЕСКОЙ АКТИВНОСТИ В ОХОТОМОРСКОМ РЕГИОНЕ В статье приводится модель геологического развития Охотского моря, разработанная на основе из-учения радиоизотопного возраста, минерального и изотопно-геохимического состава поздн...
Article
Full-text available
Intra-annual variability in methane fluxes at the water–atmosphere boundary was shown for the first time in the water area of the Sea of Okhotsk east of Sakhalin Island. The variability in methane fluxes is determined by the presence and activity of submarine methane sources and is related to seasonal changes in the hydrological and hydrochemical p...
Article
Full-text available
The calculations which determine the chemical composition of the primitive magma are simple but they show changes in the temperature and pressure states of the magma source. The method is based on the addition of the chemical composition of the Olivine to the major element composition of the eruptive rocks which follows the formula: C i = C i-1 + 0...
Article
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The Second International Indian Ocean Expedition (IIOE-2) was launched in December 2015 at the culmination of the Indian Ocean Symposium at Goa to mark the completion of 50 years of first International Indian Ocean Expedition. The IIOE-2 is a multi-national, multi-institutional programme to advance our understanding of the physical, chemical, biolo...
Preprint
Full-text available
The Red River delta (RRD) with an area of about 12 620 km 2 is one of the largest deltas of Viet Nam and it also is one of the remarkable deltas of Asia. The delta was formed during Holocene period, mainly from 9,000 years up to now. The RRD belongs to the northwest tip of the large Tertiary basin that is called "the Red River basin" (RRB) or "Song...
Article
Full-text available
The article mentions the results of the new analysis of gas-geochemical and high resolution shallow seismic data acquired by the sea surveys in 2016, which revealed a remarkable coincidence between the seabed gas anomalies at river mouth area of Gulf of Tonkin and the gas distortion/accumulation phenomena in the near-surface sediment layers, especi...
Article
Full-text available
This paper presents review of dissolved Rare Earth Elements (REE) and methane anomalies distribution in the East China Sea water column. In general, the REE concentrations of the shelf water are markedly higher than those of Okinawa Trough water in the East China Sea. Rare earth elemental concentrations in the Okinawa Trough water mainly governed b...
Article
Full-text available
This paper reports the results of the third Russian-Vietnamese expedition (V.I. Il'ichev Pacific Oceanological Institute, Far East Branch, Russian Academy of Sciences and the Institute of Marine Geology and Geophysics, Vietnam Academy of Science and Technology) in the Gulf of Tonkin, South China Sea (April 2016). The studies revealed new specific f...
Article
Full-text available
The new results of gasgeochemical studies in the integrated expedition of the Russian Academy of Sciences on R/V “Akademik Boris Petrov” (Cruise 42) along the regional profile (3180 km) in the South China Sea (Bien Dong) from January 10-16, 2017 are presented. The expedition conducted in the frame of the Second International Indian Ocean Expedition...