Xiao, Yilin

[["dc.bibliographiccitation.artnumber","1026"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Contributions to Mineralogy and Petrology"],["dc.bibliographiccitation.volume","167"],["dc.contributor.author","Liu, Lei"],["dc.contributor.author","Xiao, Yilin"],["dc.contributor.author","Aulbach, Sonja"],["dc.contributor.author","Li, Dongyong"],["dc.contributor.author","Hou, Zhenhui"],["dc.date.accessioned","2018-11-07T09:39:14Z"],["dc.date.available","2018-11-07T09:39:14Z"],["dc.date.issued","2014"],["dc.description.abstract","Vanadium occurs in multiple valence states in nature, whereas Nb is exclusively pentavalent. Both are compatible in rutile, but the relationship of V-Nb partitioning and dependence on oxygen fugacity (expressed as fO(2)) has not yet been systematically investigated. We acquired trace-element concentrations on rutile grains (n = 86) in nine eclogitic samples from the Dabie-Sulu orogenic belt by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) and combined them with published results in order to assess the direct and indirect effects of oxygen fugacity on the partitioning of V and Nb into rutile. A well-defined negative correlation between Nb (7-1,200 ppm) and V concentrations (50-3,200 ppm) was found, documenting a competitive relationship in the rutile crystal that does not appear to be controlled by bulk rock or mineral compositions. Based on the published relationship of D-Rt(V) and V valence with Delta QFM, we suggest that the priority order of V incorporation into rutile is V4+ > V3+ > V5+. The inferred Nb-V competitive relationship in rutile from the Dabie-Sulu orogenic belt could be explained by decreasing fO(2) due to dehydration reactions involving loss of oxidizing fluids during continental subduction: The increased proportion of V3+ (expressedas V3+/Sigma V) and attendant decrease in D-Rt(V) is suggested to lead to an increase in rutile lattice sites available for Nb5+. A similar effect may be observed under more oxidizing conditions. When V5+/Sigma V increases, D-Rt(V) shows a dramatic decline and Nb concentration increases considerably. This is possibly documented by rutile in highly metasomatized and oxidized MARID-type (MARID: mica-amphibole-rutile-ilmenite-diopside) mantle xenoliths from the Kaapvaal craton, which also show a negative V-Nb covariation. In addition, their Nb/Ta covaries with V concentrations: For V concentrations < 1,250 ppm, Nb/Ta ranges between 35 and 45, whereas for V > 1,250 ppm, Nb/Ta is considerably lower (5-15). This relationship is mainly controlled by a change in Nb concentrations, suggesting that the indirect dependence of D-Rt(Nb) on fO(2), which is not mirrored in D-Rt(Ta), can exert considerable influence on rutile Nb-Ta fractionation."],["dc.description.sponsorship","Natural Science Foundation of China [41172067, 41090372, 41273037]"],["dc.identifier.doi","10.1007/s00410-014-1026-2"],["dc.identifier.isi","000338344100001"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/33233"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1432-0967"],["dc.relation.issn","0010-7999"],["dc.title","Vanadium and niobium behavior in rutile as a function of oxygen fugacity: evidence from natural samples"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","123"],["dc.bibliographiccitation.journal","Journal of Asian Earth Sciences"],["dc.bibliographiccitation.lastpage","140"],["dc.bibliographiccitation.volume","89"],["dc.contributor.author","Liu, Lei"],["dc.contributor.author","Xiao, Yilin"],["dc.contributor.author","Woerner, Gerhard"],["dc.contributor.author","Kronz, A."],["dc.contributor.author","Simon, Klaus"],["dc.contributor.author","Hou, Zhenhui"],["dc.date.accessioned","2018-11-07T09:37:28Z"],["dc.date.available","2018-11-07T09:37:28Z"],["dc.date.issued","2014"],["dc.description.abstract","This study explores the potential of detrital rutile geochemistry and thermometry as a provenance tracer in rocks from the Central Dabie ultrahigh-pressure metamorphic (UHPM) zone in east-central China that formed during Triassic continental collision. Trace element data of 176 detrital rutile grains selected from local river sediments and 91 rutile grains from distinct bedrocks in the Shuanghe and Bixiling areas, obtained by both electron microprobe (EMP) and in situ LA-ICP-MS analyses, suggest that geochemical compositions and thermometry of detrital rutiles are comparable to those from their potential source rocks. After certification of the Cr-Nb discrimination method for the Central Dabie UHPM zone, we show that 29% of the detrital rutiles in the Shuanghe area were derived from metamafic sources whereas in the Bixiling area that it is up to 76%. Furthermore, the proportion of distinct types of detrital rutiles combined with modal abundances of rutile in metapelites and metamafic bedrocks can be used to estimate the proportion of different source lithologies. Based on this method the proportion of mafic source rocks was estimated to similar to 10% at Shuanghe and >60% at Bixiling, respectively, which is consistent with the proportions of eclogite (the major rutile-bearing metamafic rock) distribution in the field. Therefore, the investigation of detrital rutiles is a potential way to evaluate the proportion of metamafic rocks and even to prospect for metamafic bodies in UHPM terranes. Zr-in-rutile temperatures were calculated at different pressures and compared with temperatures derived from rock-in rutiles and garnet-clinopyroxene Fe-Mg thermometers. Temperatures calculated for detrital rutiles range from 606 degrees C to 707 degrees C and 566 degrees C to 752 degrees C in Shuanghe and Bixiling, respectively, at P= 3 GPa with an average temperatures of ca. 630 degrees C for both areas. These temperature averages and ranges are similar to those calculated for rutiles from surrounding source rocks. Combined with comparable Zr distribution characteristics between detrital and source rock rutiles, demonstrating a close source-sediment link for rutiles from clastic and rock in UHPM terranes. Thus rutiles can be accurate tracers of source rock lithologies in sedimentary provenance studies even at a small regional scale. In Bixiling, Nb/Ta ratios of metamafic and metapelitic detrital rutiles fall between 11.0 to 27.3 and 7.7 to 20.5, respectively. In contrast, in Shuanghe, these ratios are highly variable, ranging from 10.9 to 71.0 and 7.6 to 87.1, respectively. When ignoring four outlier compositions with extremely high Nb/Ta in Shuanghe, a distinct clustering of Nb/Ta ratios in rutiles is shown: metapelitic detrital rutiles have Nb/Ta of 7-40 vs. metamafic detrital rutiles with Nb/Ta = 11-25. The Nb/ Ta characteristics in detrital rutiles from both areas may reflect the degree of fluid-rock interaction during metamorphism and/or different source lithologies. Therefore, the trace element compositions in detrital rutiles can accurately trace the lithology, proportion and fluid-rock interaction of different source rocks. (C) 2014 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.jseaes.2014.04.003"],["dc.identifier.isi","000337207200011"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/32848"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","1878-5786"],["dc.relation.issn","1367-9120"],["dc.title","Detrital rutile geochemistry and thermometry from the Dabie orogen: Implications for source-sediment links in a UHPM terrane"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","352"],["dc.bibliographiccitation.journal","Lithos"],["dc.bibliographiccitation.lastpage","365"],["dc.bibliographiccitation.volume","177"],["dc.contributor.author","Gu, Hai-Ou"],["dc.contributor.author","Xiao, Yilin"],["dc.contributor.author","Santosh, M."],["dc.contributor.author","Li, Wang-Ye"],["dc.contributor.author","Yang, Xiaoyong"],["dc.contributor.author","Pack, Andreas"],["dc.contributor.author","Hou, Zhenhui"],["dc.date.accessioned","2018-11-07T09:20:33Z"],["dc.date.available","2018-11-07T09:20:33Z"],["dc.date.issued","2013"],["dc.description.abstract","The Mesozoic tectonics in East China is characterized by significant lithospheric thinning of the North China Craton, large-scale strike-slip movement along the Tan-Lu fault, and regional magmatism with associated metallogeny. Here we address the possible connections between these three events through a systematic investigation of the geochemistry, zircon geochronology and whole rock oxygen isotopes of the Mesozoic magmatic rocks distributed along the Tan-Lu fault in the Shandong province. The characteristic spatial and temporal distributions of high-Mg adakitic rocks along the Tan-Lu fault with emplacement ages of 134-128 Ma suggest a strong structural control for the emplacement of these intrusions, with magma generation possibly associated with the subduction of the Pacific plate in the early Cretaceous. The low-Mg adakitic rocks (127-120 Ma) in the Su-Lu orogenic belt were formed later than the high-Mg adakitic rocks, whereas in the Dabie orogenic belt, most of the low-Mg adakitic rocks (143-129 Ma) were generated earlier than the high-Mg adakitic rocks. Based on available data, we suggest that the large scale strike-slip tectonics of the Tan-Lu fault in the Mesozoic initiated cratonic destruction at the south-eastern margin of the North China Craton, significantly affecting the lower continental crust within areas near the fault. This process resulted in crustal fragments sinking into the asthenosphere and reacting with peridotites, which increased the Mg# of the adakitic melts, generating the high-Mg adakitic rocks. The gravitationally unstable lower continental crust below the Tan-Lu fault in the Su-Lu orogenic belt triggered larger volume delamination of the lower continental crust or foundering of the root. (c) 2013 Elsevier B.V. All rights reserved."],["dc.description.sponsorship","Hundred Talent Program of the CAS; [NSFC 90814008]; [41172067]"],["dc.identifier.doi","10.1016/j.lithos.2013.07.011"],["dc.identifier.isi","000324721000022"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/28908"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0024-4937"],["dc.title","Spatial and temporal distribution of Mesozoic adakitic rocks along the Tan-Lu fault, Eastern China: Constraints on the initiation of lithospheric thinning"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","797"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Contributions to Mineralogy and Petrology"],["dc.bibliographiccitation.lastpage","819"],["dc.bibliographiccitation.volume","162"],["dc.contributor.author","Xiao, Yilin"],["dc.contributor.author","Hoefs, Jochen"],["dc.contributor.author","Hou, Zhenhui"],["dc.contributor.author","Simon, Klaus"],["dc.contributor.author","Zhang, Z."],["dc.date.accessioned","2018-11-07T08:51:32Z"],["dc.date.available","2018-11-07T08:51:32Z"],["dc.date.issued","2011"],["dc.description.abstract","In order to better understand the role of fluids during subduction and subsequent exhumation, we have investigated whole-rock and mineral chemistry (major and trace elements) and Li, B as well as O, Sr, Nd, Pb isotopes on selected continuous drill-core profiles through contrasting lithological boundaries from the Chinese Continental Scientific Drilling Program (CCSD) in Sulu, China. Four carefully selected sample sets have been chosen to investigate geochemical changes as a result of fluid mobilization during dehydration, peak metamorphism, and exhumation of deeply subducted continental crust. Our data reveal that while O and Sr-Nd-Pb isotopic compositions remain more or less unchanged, significant Li and/or B isotope fractionations occur between different lithologies that are in close contact during various metamorphic stages. Samples that are supposed to represent prograde dehydration as indicated by veins formed at high pressures (HP) are characterized by element patterns of highly fluid-mobile elements in the veins that are complementary to those of the host eclogite. A second sample set represents a UHP metamorphic crustal eclogite that is separated from a garnet peridotite by a thin transitional interface. Garnet peridotite and eclogite are characterized by a > 10% difference in MgO, which, together with the presence of abundant hydroxyl-bearing minerals and compositionally different clinopyroxene grains demonstrate that both rocks have been derived from different sources that have been tectonically juxtaposed during subduction, and that hydrous silicate-rich fluids have been added from the subducting slab to the mantle. Two additional sample sets, comprising retrograde amphibolite and relatively fresh eclogite, demonstrate that besides external fluids, internal fluids can be responsible for the formation of amphibolite. Li and B concentrations and isotopic compositions point to losses and isotopic fractionation during progressive dehydration. On the other hand, fluids with isotopically heavier Li and B are added during retrogression. On a small scale, mantle-derived rocks may be significantly metasomatized by fluids derived from the subducted slab. Our study indicates that during high-grade metamorphism, Li and B may show different patterns of enrichment and of isotopic fractionation."],["dc.identifier.doi","10.1007/s00410-011-0625-4"],["dc.identifier.isi","000294704900008"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7320"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/21955"],["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","Fluid/rock interaction and mass transfer in continental subduction zones: constraints from trace elements and isotopes (Li, B, O, Sr, Nd, Pb) in UHP rocks from the Chinese Continental Scientific Drilling Program, Sulu, East China"],["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"]]