E. V. Sharkov

E. V. Sharkov
Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry RAS · Petrography

Professor

About

247
Publications
45,294
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2,146
Citations
Additional affiliations
January 2008 - December 2012
Russian Academy of Sciences
Position
  • Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry

Publications

Publications (247)
Article
Full-text available
The paper reports first comprehensive geological, petrographic, mineralogical, and geochemical data on one of the world’s oldest Tiksheozero ultramafic‒alkaline‒carbonatite complex (~1.99 Ga), which belongs to the Mid-Paleoproterozoic igneous province of the Baltic Shield. The complex was formed in three intrusive phases. The first phase is compose...
Article
Full-text available
This article reports new geochemical, Sr-Nd-Hf-Pb and Re-Os data on the rocks of the Middle Paleoproterozoic (1.99 Ga) Tiksheozero ultramafic-alkaline-carbonatite complex confined to the northeastern margin of the Karelian Craton. We focus on the poorly studied silicate rocks. Based on petrographic and geochemical research, the silicate rocks are s...
Chapter
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The Caucasian-Arabian segment of the huge Late Cenozoic Alpine-Himalayan orogenic belt marks a zone of the indentation of the Arabian plate into the Eurasian plate. The segment is formed by two tectonic domains: (1) the NW-SE-striking Greater Caucasus (GC) at the north, represents the southern margin of East European Craton, tectonically uplifted a...
Article
The presence of zircon xenocrysts in Mid Atlantic Ridge (MAR) rocks poses essential questions concerning the path they have followed from their sources, how they have survived transport through the mantle, and why they are much more abundant than in any other ocean. Sixteen out of twenty-five seafloor samples collected between S 21° to N 42° contai...
Article
—Our study of mantle xenoliths in the Cretaceous lamprophyre diatremes and late Cenozoic plateau basalts of western Syria has shown that the ancient lower crust that existed in the Cretaceous and was composed of garnet granulites and eclogite-like rocks was replaced by mantle peridotites in the late Cenozoic. We conclude that the heads of the local...
Article
Full-text available
Tiksheozero ultramafic-alkaline-carbonatite intrusive complex, like numerous carbonatite-bearing complexes of similar composition, is a part of large igneous province, related to the ascent of thermochemical mantle plume. Our geochemical and isotopic data evidence that ultramafites and alkaline rocks are joined by fractional crystallization, wherea...
Article
The Tiksheozero ultramafic–alkaline–carbonatite intrusive complex, like numerous carbonatite-bearing complexes of similar composition, is a part of a large igneous province related to the ascent of a thermochemical mantle plume. The geochemical and isotopic data indicate that the formation of the ultramafic and alkaline rocks was related to crystal...
Article
Full-text available
The Markov Deep (the axial part of the slow‐spreading Mid‐Atlantic Ridge, 6°N, Sierra Leone oceanic core complex) and the Paleozoic Voikar ophiolite association (Polar Urals) formed in the back‐arc sea conditions. In both cases, the lower crust of a close structure was formed on the basements composed of depleted peridotites of the ancient lithosph...
Article
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Magmatic oxide mineralization widely developed in syenite–gabbro intrusive complexes is an important Fe and Ti resource. However, its origin is hotly debatable. Some researchers believe that the oxide ores were formed through precipitation of dense Ti-magnetite in an initial ferrogabbroic magma (Bai et al., 2012), whereas others consider them as a...
Article
Collision-related Quaternary mafic volcanism to the north of Lake Van (Eastern Anatolia, Turkey) occurred by eruptions from both volcanic centres and extensional fissures trending approximately north–south. We report new major, trace and rare earth element abundances, Sr–Nd–Pb isotope ratios and K–Ar ages for basaltic and more evolved hawaiitic and...
Article
Full-text available
The study of coronitic textures in ferrogabbros and data on rhythmic layering of the Elet’ozero Massif supports the existence of a specific low-temperature Fe-rich liquid in nature. This liquid was formed during solidification of intrusion owing to the local multiple accumulation of Fe and Ti contents in a parental Fe-rich Fe–Ti basaltic melt. Acco...
Article
The paper presents newly obtained original data on the morphology, internal structure (as seen in cathodoluminescence images, CL), and composition of more than 400 zircon grains separated from gabbroids and plagiogranites (OPG) sampled at the axial zone of the Mid-Atlantic Ridge (MAR). The zircons were analyzed for REE by LA-ICP-MS and for Hf, U, T...
Article
Fe–Ti oxides (magnetite, Ti-magnetite, ilmenite, and associated high-Al spinel) in the ferrogabbroids of the Middle Paleoproterozoic Elet’ozero syenite–gabbro intrusion are intercumulus minerals usually surrounded by coronitic rims of two types. The first type usually represents multilayer amphibole–biotite ± olivine coronas along contacts of Fe–Ti...
Article
Full-text available
Compositional peculiarities of the siliceous high-Mg series (SHMS) rocks formed at the Archean–Paleoproterozoic boundary as a function of plume activity are discussed using example of Early Paleoproterozoic mafic volcanic rocks of the Vodlozero Domain, Fennoscandian Shield. These rocks are characterized by wide variations in Mg# (from 33 to 67) and...
Article
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The problem of the Daly Gap is considered for the example of bimodal basalt–trachyte series and their intrusive analogs (layered syenite–gabbro intrusions). It is shown that the gap is not controlled by the processes of crystallization differentiation or liquid immiscibility in intermediate chambers of igneous systems (intrusive chambers) and has a...
Article
Full-text available
The series of two papers presents a comprehensive isotope-geochronological and petrological- geochemical study of the Late Quaternary Tendürek Volcano (Eastern Turkey), one of the greatest volcanoes within the Caucasian–Eastern Anatolian segment of the Alpine foldbelt. The second article discusses the results of petrogenetic modeling, role of AFC-p...
Article
It is demonstrated that most subsolidus coronitic textures in ferrogabbroids of the Elet’ozero intrusive complex result from crystallization of drops of immiscible interstitial high-Fe melt scattered among cumulates and containing SiO2, Ti, Al, Ca, Na, K, Ba, and volatiles (water, F, and Cl) as well. Fe–Ti oxides were the first crystal phases, wher...
Article
The Pliocene Etrüsk stratovolcano, located in the northeast of Lake Van (Eastern Anatolia; Turkey), is one of the important volcanic centres in the Eastern Anatolian collision zone. Mt. Etrüsk overlies a widespread volcanic plateau, consisting of basaltic and hawaiitic lavas formed by fissure eruptions between 4.9–4.5 Ma. These basic lavas contain...
Article
Full-text available
Large igneous provinces (LIPs) formed by mantle superplume events have irreversibly changed their composition in the geological evolution of the Earth from high-Mg melts (during Archean and early Paleoproterozoic) to Phanerozoic-type geochemically enriched Fe-Ti basalts and picrites at 2.3 Ga. We propose that this upheaval could be related to the c...
Data
Simplified version of the Tendürek Volcano map. Compiled by V.A. Lebedev, 2016©. Appendix A to the paper Lebedev V.A. et al., 2016a //Petrology, 24(2), 127-152. Please, remember about copyrights and references!
Data
3D version (with orography) of the Tendürek Volcano map. Compiled by V.A. Lebedev, 2016©. Appendix B to the paper Lebedev V.A. et al., 2016a //Petrology, 24(2), 127-152. Please, remember about copyrights and references!
Data
Multilayer (original) version of the Tendürek Volcano map. Scale 1/100000. Compiled by V.A. Lebedev, 2016©. Layers: topography, geology, sampling points, K-Ar datings Appendix C to the paper Lebedev V.A. et al., 2016a //Petrology, 24(2), 127-152. Please, remember about copyrights and references!
Article
Full-text available
The series of two papers presents a comprehensive isotope-geochronological and petrological-geochemical study of the Late Quaternary Tendürek Volcano (Eastern Turkey), one of the greatest volcanoes within the Caucasian—Eastern Anatolian segment of the Alpine foldbelt. The first article discusses the results of chronostratigraphic reconstruction and...
Conference Paper
Full-text available
Включение в ПК новой классификационной таблицы потребует некоторых изменений или уточнений и в других его таблицах, касающихся классификаций магнезиальных (МgО - 9-18%) вулканитов основного и среднего составов. В соответствии со статьей 1.5 ПК [7] предложения рабочей группы с возможными дополнениями и уточнениями будут рекомендованы для внесения на...
Article
Full-text available
We present the results of a pilot investigation of multiple sulfur isotopes for the Ni-Cu-PGE sulfide mineralization of the ∼2.5 Ga Monchegorsk Igneous Complex (MIC). Base Metal Sulfide (BMS) compositions, Platinum Group Element (PGE) distributions, and Platinum Group Mineral (PGM) assemblages were also studied for different types of Ni-Cu-PGE mine...
Conference Paper
Full-text available
For the first time the problem of the evolution of the Earth's core throughout of its geological history is discussed using both petrological and paleomagnetic data. It is known that the material of modern thermochemical mantle plumes, generated at the interface of the liquid iron core and a silicate mantle, contains fluid components of the core th...
Article
Full-text available
The Caucasian-Arabian belt is part of the huge late Cenozoic Alpine-Himalayan orogenic belt formed by collision of continental plates. The belt consists of two domains: the Caucasian-Arabian Syntaxis (CAS) in the south and the EW-striking Greater Caucasus in the north. The CAS marks a zone of the indentation of the Arabian plate into the southern E...
Article
Full-text available
The paper presents a study of zircon from the Middle Paleoproterozoic Elet’ozero high-Ti layered ultramafic-mafic-alkaline intrusive complex with carbonatites and Sm-Nd isotope system of rock-forming minerals in ferrogabbro sample from this complex. Zircons extracted from syenite and ferrogabbro samples have similar pattern and experienced two main...
Article
Full-text available
According to the composition of mantle xenoliths in all occurrences of within-plate basaltic magmatism, the frontal parts of the mantle thermochemical plumes formed at the liquid core–mantle boundary were represented by similar material consisting of spinel peridotite (mostly lherzolite) and a geochemically enriched intergranular fluid/melt. The xe...
Presentation
Full-text available
Включение в ПК новой классификационной таблицы потребует некоторых изменений или уточнений и в других его таблицах, касающихся классификаций магнезиальных (МgО - 9-18%) вулканитов основного и среднего составов. В соответствии со статьей 1.5 ПК [7] предложения рабочей группы с возможными дополнениями и уточнениями будут рекомендованы для внесения на...
Conference Paper
Full-text available
High-grade complexes of the early Precambrian: Evidence from the eastern Fennoscandian Shield E.V. Sharkov and A.V. Chistyakov Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (IGEM) of RAS, Moscow, Russia e-mail: sharkov@igem.ru Three types of high-grade rocks are known in the Early Precambrian. Two of them occu...
Article
Full-text available
The Early Paleoproterozoic Monchegorsk Complex comprises two independent large layered mafic-ultramafic intrusions: the Monchegorsk pluton and the Main Range massif formed about 2.50 and 2.46 Ga ago, respectively. They are composed of similar cumulates, though they differ somewhat in the isotopic parameters of rocks, cumulate stratigraphy and deriv...
Article
Full-text available
Assemblages of fossilized microorganisms from the Paleoproterozoic Suisarian Formation (Ludicovian stratotype of the Karelian Complex) of central Karelia are recognized and investigated. Fossil assemblages of microorganisms confined to different zones of pillow lavas are compared.
Article
Full-text available
Geological and petrological data on evolution of tectonomagmatic processes on the Earth and the Moon evidence that their primordial iron cores were formed as a result of heterogeneous accretion from material, existed in the Solar system in the early stages of their development, when the terrestrial planets were born and were their embryos. Material...
Conference Paper
Full-text available
The Quaternary Tendürek Volcano is one of the largest eruption centers of the Eastern Anatolia with a summit elevation of 3538 m and a footprint area of 650 km2. It is a shield volcano consisting of lavas ranging in composition from tephrites through benmoreites/phonolites to trachytes. The young volcanism of the region is thought to be related to...
Article
Geology and stratigraphy of the Pechenga Greenstone Belt is described in detail in Chap. 4.2. The brief geological outline presented here provides a scientific context and background information for the FAR-DEEP implemented in this area.
Data
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Describes the sun, planets, moons, comets, asteroids, and other objects in the Solar System.
Data
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Conference Paper
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Zone of Caucasian-Arabian syntaxis, where Arabian plate as a wedge pushes into southern frame of Eurasian plate, is a part of huge Late Cenozoic Alpine-Himalayan zone collision of continental plates, lasted throughout the Eurasian continent. At that the Greater Caucasus is an edge of the Eurasian plate, raised along the large upthrow fault - the Ma...
Article
Full-text available
Large igneous provinces are usually formed by lava plateaus, dyke swarms, and intrusions. The rocks of these units show wide variations in composition. However, it is unclear which mechanisms and where produced such a compositional diversity. It is also important to understand whether these complexes are comagmatic or not? For this purpose, we stud...
Article
Full-text available
Quaternary mafic lavas in the north of Lake Van erupted not only from eruption center like Girekol miniature shield volcano but also from N-S (Yüksektepe volcanic field) and E-W (Ormuktepe volcanic field) extending extensional fractures. Literature K/Ar dates (Lebedev et al., 2010) indicate that the basaltic and hawaiitic lavas erupted in a period...
Chapter
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Drillhole 5A intersected the Kuetsjärvi Sedimentary Formation (Figs. 6.44, 6.45) in the eastern part of the Pechenga Greenstone Belt, Kola Peninsula, NW Russia (Figs. 6.1, 6.32). The deposition of the Kuetsjärvi Sedimentary Formation occurred between 2505.1 ± 1.6 Ma and 2058 ± 2 Ma (Amelin et al., 1995; Melezhik et al., 2007). The latter age was ob...
Article
Full-text available
This paper reports the results of detailed petrological-geochemical study of zircons and host rocks that were dredged from the Markov Deep area in the slow-spreading Mid-Atlantic ridge. The rocks are represented by variably cataclased gabbronorite with veinlets of oceanic plagiogranite (OPG) as well as leucocratic gabbro (primitive gabbro) and horn...
Chapter
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Hole 3A intersected the Polisarka Sedimentary Formation (Figs. 6.13, 6.14) in the western part of the Imandra-Varzuga Greenstone Belt (Figs. 6.1–6.3). The depositional age of the Polisarka Sedimentary formation is younger than c. 2442 Ma, which is the age of the underlying volcanic rocks of the Seidorechka Volcanic Formation (Amelin et al., 1995)....
Chapter
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The Late Archaean-Early Palaeoproterozoic transition (2500–2000 Ma) represents a hallmark period when the Earth System experienced a series of fundamental upheavals. Among them, the most important was the establishment of an oxygen-rich atmosphere (sometimes referred to as the Great Oxidation Event) and the emergence of an aerobic biosphere. Associ...
Article
Full-text available
The Early Paleoproterozoic Monchegorsk Complex is exposed over an area of 550 km2 and comprises two layered mafite-ultramafite intrusions of different age: the Monchegorsk pluton of ultramafic and mafic rocks and the predominantly gabbroid Main Range Massif (also referred to as the Moncha-Chuna-Volch’i Tundras Massif), which are separated by a faul...