Churikova, Tatiana G.

[["dc.bibliographiccitation.firstpage","131"],["dc.bibliographiccitation.issue","1-4"],["dc.bibliographiccitation.journal","Journal of Volcanology and Geothermal Research"],["dc.bibliographiccitation.lastpage","151"],["dc.bibliographiccitation.volume","104"],["dc.contributor.author","Dorendorf, F."],["dc.contributor.author","Churikova, Tatiana G."],["dc.contributor.author","Koloskov, A."],["dc.contributor.author","Worner, G."],["dc.date.accessioned","2018-11-07T09:13:52Z"],["dc.date.available","2018-11-07T09:13:52Z"],["dc.date.issued","2000"],["dc.description.abstract","The different roles of variable mantle sources and intra-crustal differentiation processes at Bakening volcano (Kamchatka) and contemporaneous basaltic monogenetic centers are studied using major and trace elements and isotopic data. Three suites of volcanic activity are recognized: (1) plateau basalts of Lower Pleistocene age; (2) andesites and dacites of the Bakening volcano, the New Bakening volcano dacitic centers nearby; and (3) contemporaneous basaltic cinder cones erupted along subduction zone--parallel N-S faults. Age-data show that the last eruptions in the Bakening area occurred only 600-1200 years ago, suggesting the volcano is potentially active. Major element variations and petrographic observations provides evidence for a fractionation assemblage of olivine, clinopyroxene, +/-plagioclase, +/-magnetite (?) within the basaltic suite. The fractionation in the andesites and dacites is dominated by amphibole, clinopyroxene. orthopyroxene and plagioclase plus minor amounts of magnetite and apatite. The youngest cpx-opx-andesites of Bakening main volcano deviate from that trend. Their source was probably formed by mixing of basaltic magmas into the silicic magma chamber of the Bakening volcano. Overall trace element patterns as well as the Sr-Nd-Pb isotopic compositions are quite similar in all rocks despite large differences in their chemical composition (from basalt to rhyodacite). In detail however, the andesite-dacites of the central Bakening volcano show a stronger enrichment in the more incompatible elements and depletion in HREE compared to the monogenetic basaltic centers. This results in a crossing of the REE-pattern for the two suites. The decrease in the HREEs can be explained by amphibole fractionation. A slab component is less likely because it would result in fractionation of the HREE from each other, which is not observed. The higher relative amounts of LILE in the dacitic and the large scatter in the basaltic rocks must be the result of a variable source enrichment by slab-derived fluids overprinting a variable depleted mantle wedge. The plateau basalts are less depleted in HFSE and show a more fractionated HREE pattern. These lavas could either result from a slab component or the addition of an OIB-type enriched mantle in their source. (C) 2000 EIsevier Science B.V. All rights reserved."],["dc.identifier.doi","10.1016/S0377-0273(00)00203-1"],["dc.identifier.isi","000166971200008"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27267"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","0377-0273"],["dc.title","Late Pleistocene to Holocene activity at Bakening volcano and surrounding monogenetic centers (Kamchatka): volcanic geology and geochemical evolution"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","517"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Geology"],["dc.bibliographiccitation.lastpage","521"],["dc.bibliographiccitation.volume","47"],["dc.contributor.author","Tomanikova, Lubomira"],["dc.contributor.author","Savov, Ivan P."],["dc.contributor.author","Harvey, Jason"],["dc.contributor.author","de Hoog, Jan C.M."],["dc.contributor.author","Churikova, Tatiana G."],["dc.contributor.author","Yogodzinski, Gene M."],["dc.contributor.author","Gordeychik, Boris N."],["dc.date.accessioned","2020-12-10T18:37:08Z"],["dc.date.available","2020-12-10T18:37:08Z"],["dc.date.issued","2019"],["dc.description.abstract","Metasomatized subarc mantle is often regarded as one of the mantle reservoirs enriched in fluid-mobile elements (FMEs; e.g., B, Li, Cs, As, Sb, Ba, Rb, Pb), which, when subject to wet melting, will contribute to the characteristic FME-rich signature of arc volcanic rocks. Evidence of wet melts in the subarc mantle wedge is recorded in metasomatic amphibole-, phlogopite-, and pyroxene-bearing veins in ultramafic xenoliths recovered from arc volcanoes. Our new B and δ11B study of such veins in mantle xenoliths from Avachinsky and Shiveluch volcanoes, Kamchatka arc, indicates that slab-derived FMEs, including B and its characteristically high δ11B, are delivered directly to a melt that experiences limited interaction with the surrounding mantle before eruption. The exceptionally low B contents (from 0.2 to 3.1 μg g–1) and low δ11B (from –16.6‰ to +0.9‰) of mantle xenolith vein minerals are, instead, products of fluids and melts released from the isotopically light subducted and dehydrated altered oceanic crust and, to a lesser extent, from isotopically heavy serpentinite. Therefore, melting of amphibole- and phlogopite-bearing veins in a metasomatized mantle wedge cannot alone produce the characteristic FME geochemistry of arc volcanic rocks, which require a comparatively large, isotopically heavy and B-rich serpentinite-derived fluid component in their source"],["dc.identifier.doi","10.1130/G46092.1"],["dc.identifier.issn","0091-7613"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16295"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/76851"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","0091-7613"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","A limited role for metasomatized subarc mantle in the generation of boron isotope signatures of arc volcanic rocks"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","egac087"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Journal of Petrology"],["dc.bibliographiccitation.volume","63"],["dc.contributor.author","Iveson, Alexander A"],["dc.contributor.author","Humphreys, Madeleine C S"],["dc.contributor.author","Jenner, Frances E"],["dc.contributor.author","Kunz, Barbara E"],["dc.contributor.author","Savov, Ivan P"],["dc.contributor.author","De Hoog, Jan C M"],["dc.contributor.author","Churikova, Tatiana G"],["dc.contributor.author","Gordeychik, Boris N"],["dc.contributor.author","Hammond, Samantha J"],["dc.contributor.author","Plechov, Pavel Yu"],["dc.contributor.author","Agostini, Samuele"],["dc.date.accessioned","2022-11-01T10:16:56Z"],["dc.date.available","2022-11-01T10:16:56Z"],["dc.date.issued","2022"],["dc.description.abstract","Abstract\n Melt storage and supply beneath arc volcanoes may be distributed between a central stratovolcano and wider fields of monogenetic cones, indicating complex shallow plumbing systems. However, the impact of such spatially variable magma storage conditions on volatile degassing and trace element geochemistry is unclear. This study explores magma generation and storage processes beneath the Tolbachik volcanic field, Kamchatka, Russia, in order to investigate the evolution of the magmatic volatile phase and, specifically, the strong enrichment of chalcophile metals (in particular, Cu) in this system. We present new geochemical data for a large suite of olivine- and clinopyroxene-hosted melt inclusions (and host phenocrysts) from five separate monogenetic cones within the Tolbachik volcanic field. These high-Al composition magmas likely reflect the homogenised fractionation products of primitive intermediate-Mg melt compositions, stored at shallow depths after significant fractional crystallisation. Boron isotope compositions and incompatible trace element ratios of the melt inclusions suggest a deeper plumbing system that is dominated by extensive fractional crystallisation and fed by melts derived from an isotopically homogeneous parental magma composition. Volatile components (H2O, CO2, S, Cl, F) show that magmas feeding different monogenetic cones had variable initial volatile contents and subsequently experienced different fluid-saturated storage conditions and degassing histories. We also show that melts supplying the Tolbachik volcanic field are strongly enriched in Cu compared with almost all other Kamchatka rocks, including samples from the Tolbachik central stratocones, and other volcanoes situated in close proximity in the Central Kamchatka Depression. The melt inclusions record Cu concentrations ≥450 μg/g at ca. 4–5 wt.% MgO, which can only be explained by bulk incompatible partitioning behaviour of Cu, i.e. evolution under sulphide-undersaturated conditions. We suggest that initial mantle melting in this region exhausted mantle sulphides, leading to sulphide undersaturated primitive melts. This sulphide-free model for the high-Al cone melts is further supported by S/Se and Cu/Ag values that overlap those of the primitive mantle and MORB array, with bulk rock Cu/Ag ratios also overlapping other with other global arc datasets for magma evolution prior to fractionation of a monosulfide solid solution. We therefore demonstrate that the combination of novel chalcophile metal analyses with trace element, isotopic, and volatile data is a powerful tool for deciphering complex magmatic evolution conditions across the entire volcanic field."],["dc.identifier.doi","10.1093/petrology/egac087"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/116693"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-605"],["dc.relation.eissn","1460-2415"],["dc.relation.issn","0022-3530"],["dc.title","Tracing Volatiles, Halogens, and Chalcophile Metals during Melt Evolution at the Tolbachik Monogenetic Field, Kamchatka"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","229"],["dc.bibliographiccitation.journal","Journal of Geosciences"],["dc.bibliographiccitation.lastpage","250"],["dc.contributor.author","Bergal-Kuvikas, O."],["dc.contributor.author","Leonov, V."],["dc.contributor.author","Rogozin, A."],["dc.contributor.author","Bindeman, I."],["dc.contributor.author","Kliapitskiy, E."],["dc.contributor.author","Churikova, Tatiana G."],["dc.date.accessioned","2020-04-06T07:31:30Z"],["dc.date.available","2020-04-06T07:31:30Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.3190/jgeosci.295"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/63771"],["dc.relation.issn","1803-1943"],["dc.relation.issn","1802-6222"],["dc.title","Stratigraphy, structure and geology of Late Miocene Verkhneavachinskaya caldera with basaltic-andesitic ignimbrites at Eastern Kamchatka"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","659"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Contributions to Mineralogy and Petrology"],["dc.bibliographiccitation.lastpage","687"],["dc.bibliographiccitation.volume","159"],["dc.contributor.author","Volynets, Anna O."],["dc.contributor.author","Churikova, Tatiana G."],["dc.contributor.author","Woerner, Gerhard"],["dc.contributor.author","Gordeychik, Boris N."],["dc.contributor.author","Layer, Paul"],["dc.date.accessioned","2018-11-07T08:43:29Z"],["dc.date.available","2018-11-07T08:43:29Z"],["dc.date.issued","2010"],["dc.description.abstract","New (40)Ar/(39)Ar and published (14)C ages constrain voluminous mafic volcanism of the Kamchatka back-arc to Miocene (3-6 Ma) and Late Pleistocene to Holocene (< 1 Ma) times. Trace elements and isotopic compositions show that older rocks derived from a depleted mantle through subduction fluid-flux melting (> 20%). Younger rocks form in a back arc by lower melting degrees involving enriched mantle components. The arc front and Central Kamchatka Depression are also underlain by plateau lavas and shield volcanoes of Late Pleistocene age. The focus of these voluminous eruptions thus migrated in time and may be the result of a high fluid flux in a setting where the Emperor seamount subducts and the slab steepens during rollback during terrain accretions. The northern termination of Holocene volcanism locates the edge of the subducting Pacific plate below Kamchatka, a \"slab-edge-effect\" is not observed in the back arc region."],["dc.identifier.doi","10.1007/s00410-009-0447-9"],["dc.identifier.isi","000276276300004"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?goescholar/4176"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/19974"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0010-7999"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Mafic Late Miocene-Quaternary volcanic rocks in the Kamchatka back arc region: implications for subduction geometry and slab history at the Pacific-Aleutian junction"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3"],["dc.bibliographiccitation.journal","Journal of Volcanology and Geothermal Research"],["dc.bibliographiccitation.lastpage","21"],["dc.bibliographiccitation.volume","263"],["dc.contributor.author","Churikova, Tatiana G."],["dc.contributor.author","Gordeychik, Boris N."],["dc.contributor.author","Ivanov, Boris V."],["dc.contributor.author","Woerner, Gerhard"],["dc.date.accessioned","2018-11-07T09:21:39Z"],["dc.date.available","2018-11-07T09:21:39Z"],["dc.date.issued","2013"],["dc.description.abstract","Data on the geology, petrography, mineralogy, and geochemistry of rocks from Kamen Volcano (Central Kamchatka Depression) are presented and compared with rocks from the neighbouring active volcanoes. The rocks from Kamen and Ploskie Sopky volcanoes differ systematically in major elemental and mineral compositions and could not have been produced from the same primary melts. The compositional trends of Kamen stratovolcano lavas and dikes are clearly distinct from those of Klyuchevskoy lavas in all major and trace element diagrams as well as in mineral composition. However, lavas of the monogenetic cones on the southwestern slope of Kamen Volcano are similar to the moderately high-Mg basalts from Klyuchevskoy and may have been derived from the same primary melts. This means that the monogenetic cones of Kamen Volcano represent the feeding magma for Klyuchevskoy Volcano. Rocks from Kamen stratovolcano and Bezymianny form a common trend on all major element diagrams, indicating their genetic proximity. This suggests that Bezymianny Volcano inherited the feeding magma system of extinct Kamen Volcano. The observed geochemical diversity of rocks from the Klyuchevskaya group of volcanoes can be explained as the result of both gradual depletion over time of the mantle N-MORB-type source due to the intense previous magmatic events in this area, and the addition of distinct fluids to this mantle source. (C) 2013 Elsevier B.V. All rights reserved."],["dc.description.sponsorship","NSF; Russian Foundation for Basic Research [08-05-00600]"],["dc.identifier.doi","10.1016/j.jvolgeores.2013.01.019"],["dc.identifier.isi","000326365600002"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/29159"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","1872-6097"],["dc.relation.issn","0377-0273"],["dc.title","Relationship between Kamen Volcano and the Klyuchevskaya group of volcanoes (Kamchatka)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","112"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Journal of Volcanology and Seismology"],["dc.bibliographiccitation.lastpage","130"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Churikova, Tatiana G."],["dc.contributor.author","Ivanov, Boris V."],["dc.contributor.author","Eichelberger, J."],["dc.contributor.author","Woerner, Gerhard"],["dc.contributor.author","Browne, B."],["dc.contributor.author","Izbekov, P."],["dc.date.accessioned","2018-11-07T09:27:13Z"],["dc.date.available","2018-11-07T09:27:13Z"],["dc.date.issued","2013"],["dc.description.abstract","The data on the geochemistry of the rocks of Kizimen Volcano and results of microprobe studies of major and trace elements in plagioclase grains from acid lavas and basalt inclusions are presented. The characteristics of the Kizimen Volcano are the following: (1) basalt inclusions are abundant in acid lavas; (2) banded, mixed lavas occur; (3) the distribution curves of rare-earth elements of acidic lavas and basalt inclusions intersect; (4) Sr-Nd isotope systematics of the rocks and inclusions do not indicate mixture with crustal material; (5) plagioclase phenocrysts are of direct and reverse zonation; (6) olivine and hornblende, as well as acid and mafic plagioclases, coexist in the rocks. The studies revealed that the rocks are of a hybrid nature and originated in the course of repeated mixture of acid and mafic melts either with chemical and thermal interaction of melts or exclusively thermal ones. Study of the major- and trace-element distribution in zonal minerals provides an informative tool for understanding the history of the generation and evolution of melts in a magma chamber."],["dc.identifier.doi","10.1134/S0742046313020024"],["dc.identifier.isi","000318572800002"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30486"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Maik Nauka/interperiodica/springer"],["dc.relation.issn","0742-0463"],["dc.title","Major and trace element zoning in plagioclase from Kizimen Volcano (Kamchatka): Insights into magma-chamber processes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","11775"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Scientific Reports"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Gordeychik, Boris N."],["dc.contributor.author","Churikova, Tatiana G."],["dc.contributor.author","Kronz, Andreas"],["dc.contributor.author","Sundermeyer, Caren"],["dc.contributor.author","Simakin, Alexander"],["dc.contributor.author","Wörner, Gerhard"],["dc.date.accessioned","2018-12-18T10:55:41Z"],["dc.date.available","2018-12-18T10:55:41Z"],["dc.date.issued","2018"],["dc.description.abstract","Complex core-rim zoning of Mg-Fe-Ni-Ca-Cr-Al-P in high-Mg olivine crystals from a tuff ring of Shiveluch volcano, Kamchatka, enables reconstruction of the entire olivine crystallization history from mantle conditions to eruption. Bell-shaped Fo86-92 and Ni profiles in crystal cores were formed by diffusion after mixing with evolved magma. Diffusion proceeded to the centres of crystals and completely equilibrated Fo and Ni in some crystals. Diffusion times extracted from Fo and Ni core profiles range from 100 to 2000 days. During subsequent mixing with mafic mantle-equilibrated melt, the cores were partially dissolved and overgrown by Fo90 olivine. Times extracted from Fo and Ni diffusion profiles across the resorption interface between the core and its overgrowth range within 1-10 days, which corresponds to the time of magma ascent to the surface. The overgrowth shows identical smooth Fo-Ni decreasing zoning patterns for all crystals towards the margin, indicating that all crystals shared the same growth history after last mixing event prior to eruption. At the same time, Ca, and to an even greater extent Cr, Al, and P have oscillatory growth patterns in the crystals overgrowth. Our data show that magma ascent can be extremely short during maar/tuff ring eruption."],["dc.identifier.doi","10.1038/s41598-018-30133-1"],["dc.identifier.pmid","30082716"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15442"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/57129"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.relation.eissn","2045-2322"],["dc.relation.orgunit","Fakultät für Geowissenschaften und Geographie"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Growth of, and diffusion in, olivine in ultra-fast ascending basalt magmas from Shiveluch volcano"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Journal of Geophysical Research. B, Solid Earth"],["dc.bibliographiccitation.volume","125"],["dc.contributor.author","Liu, Haiyang"],["dc.contributor.author","Xiao, Yilin"],["dc.contributor.author","Sun, He"],["dc.contributor.author","Tong, Fengtai"],["dc.contributor.author","Heuser, Alexander"],["dc.contributor.author","Churikova, Tatiana"],["dc.contributor.author","Wörner, Gerhard"],["dc.date.accessioned","2021-04-14T08:26:47Z"],["dc.date.available","2021-04-14T08:26:47Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1029/2019JB019237"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/82077"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","2169-9356"],["dc.relation.issn","2169-9313"],["dc.title","Trace Elements and Li Isotope Compositions Across the Kamchatka Arc: Constraints on Slab‐Derived Fluid Sources"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","13"],["dc.bibliographiccitation.journal","Geochimica et Cosmochimica Acta"],["dc.bibliographiccitation.volume","73"],["dc.contributor.author","Volynets, Anna O."],["dc.contributor.author","Churikova, Tatiana G."],["dc.contributor.author","Woerner, Gerhard"],["dc.date.accessioned","2018-11-07T08:29:17Z"],["dc.date.available","2018-11-07T08:29:17Z"],["dc.date.issued","2009"],["dc.format.extent","A1393"],["dc.identifier.isi","000267229903474"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/16610"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.publisher.place","Oxford"],["dc.relation.conference","19th Annual VM Goldschmidt Conference"],["dc.relation.eventlocation","Davos, SWITZERLAND"],["dc.relation.issn","0016-7037"],["dc.title","Mantle sources and fluids in the Northern Kamchatka back arc"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]