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Cretaceous.volcanic-intrus.ve magmatis. in wes.ern Guangdong and its.geological s.gnificance

s.ience China Earth s.iences 2006年第7期49卷 696-713页

作者： s. y. o’reilly GEMoC ARC National Key.Centre Department of Earth and Planetary Sciences Macquarie University Sydney NSW 2109 Australia

s.s.ematic zircon LA-ICPMs.U-Pb dating reveals.that Cretaceous.volcanic-intrus.ve activities.developed in wes.ern Guangdong. Repres.ntative volcanic rocks. i.e. Maans.an and Zhougongding rhy.dacites. have zircon U-Pb is.topic ages.of 100±1 Ma, and the intrus.ve ones.in-cluding the Deqing monzonitic granite body.and the Xinghua granodiorite body.in the s.idong com-plex, as.well as.the Tiaocun granodiorite body.in the Guangping complex y.eld ages.of 99±2 Ma, ca. 100 Ma, and 104±3 Ma res.ectively. The biotite-granites.of the s.idong complex main body.(461±35 Ma) and that of the Guangping complex (444±6 Ma) are Caledonian. In s.ite of the big time interval between Cretaceous.volcanic-intrus.ve magmatis.s.and Caledonian intrus.ve ones. both of them are characterized by.enrichment in Rb, Th, Ce, Zr, Hf, s., depletion in Ba, Nb, Ta, P, Ti, Eu, and weakly.REE tetrad effect. Eu negative anomalies.are: Cretaceous.volcanic rocks.(Eu/Eu*=0.74), Cretaceous.intrus.ve rocks.(Eu/Eu*=0.35―0.58), Caledonian biotite granites.(Eu/Eu*=0.31―0.34). s.udies.of s.-Nd is.tope data s.ow that all thes. igneous.rocks.have high initial 87s./86s. ratios.(0.7105―0.7518), and low εNd(t) values.(?7.23―?11.39) with their Nd two-s.age model ages.ranging from 1.6―2.0 Ga, which s.gges. that they.all derived from the Proterozoic crus.al bas.ment of s.utheas. China. The occurrence of Cretaceous.volcanic-intrus.ve magmatis.s.in wes.ern Guangdong is.related with the important lithos.heric extens.on event in s.utheas. China (including Nanling region) at ca. 100 Ma. The “volcanic line” defined by.the large s.ale Mes.zoic intermediate-acidic volcanic magmatis.s.in s.utheas. China may.further extend to the s.uthwes. margin of Nanling region.

关键词： Cretaceous. volcanic-intrus.ve rocks. zircon U-Pb dating, s.-Nd is.tope, wes.ern Guangdong.

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Three s.ages.of Zircon Growth in Magmatic Rocks.from the Pingtan Complex,Eas.ern China

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Acta Geologica s.nica(Englis. Edition) 2007年第1期81卷 68-80页

作者： WANG Xiang W. L. GRIFFIN s. y. o＇reilly LI Wuxian s.ate Key.Laboratory.for Mineral Depos.t Res.arch Department of Earth Sciences Nanjing University Nanjing Jiangsu 210093 China GEMoC ARC National Key.Center Department of Earth and Planetary Sciences Macquarie University NSW 2109 Australia Cs.Ro Exploration and Mining North Ryde NSW 2113 Australia

Morphological and chemical s.udies.on zircon grains.from gabbro and granite of the Pingtan magmatic complex, Fujian Province, eas.ern China, s.ow that there are three s.ages.of zircon growth. The early.s.age of zircon growth is.characterized by.colorles.nes., high trans.arence and birefringence, low and dis.ers.ve Ipr and Ipy. weak and homogeneous.Bs. brightnes., lower Hf content and depletion of U, Th and y. the middle s.age is.characterized by.abruptly.increas.ng lpy. progres.ively.s.rong and s.ctoral-zoning Bs. brightnes., higher Hf content and enrichment of U, Th and y.with Th/U 〉 1; the late s.age of growth is.characterized by.brownis. color, poor trans.arence, low birefringence, highes. Ipr and Ipy. middle and os.illatorily.zoning Bs. brightnes., highes. contents.of Hf, U and y.with Th/U 〈 1. The s.ages.are cons.dered to be formed in a deep magma chamber, as.ent pas.age and emplacement s.te, res.ectively. Due to the more or les. long res.dual time of the magma chamber, the difference in age between the early.and late s.ages.of zircon might be great enough to be dis.inguis.ed, which can be attributed to tectonic cons.raint for the magnlatis..

关键词： zircon three s.ages.of cry.0}al growth ty.ology trace element magmatic rock

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Trace element characteris.ics.in the diops.des.of peridotite xenoliths. a las.r ablation-inductively.coupled plas.a-mas. s.ectrometry.s.udy

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Chines. s.ience Bulletin 1998年第7期43卷 579-583页

作者： s.aohai Chen Xinghua Zhou s. y. o’reilly W. L. Griffin Guohui Zhang M. Zhang Chines. Acad s.i Inst Geol Lab Lithosphere Tecton Evolut Beijing 100029 Peoples R China Macquarie Univ Sch Earth Sci GEMOC Sydney NSW 2109 Australia

Among the various.xenoliths.entrained by.the Cenozoic Hannuoba bas.lts. peridotite is.the mos. abundant one. The trace elements.of the diops.des.from the peridotite xenoliths.were analy.0}d by.LA-ICP-Ms. The overall depletion and s.me heterogeneity.of the continental mantle beneath northern North China Craton were indicated by.the characteris.ics.of the trace elements. The ∑REE amount in diops.de correlates.with the Cr/(Cr+Al) ratio of diops.de which is.indicative of xenolith’s.partial melting degree. As.the peridotite hos.s.and py.oxenite veins.s.ow s.milar REE dis.ribution patterns. the compos.te xenoliths.are probably.formed by.mantle deformation, rather than by.the late metas.matis. of mantle fluids.melts.

关键词： LA-ICP-Ms diops.de trace elements.

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Almandine megacry.0}s.from y.ngfengling Cenozoic bas.lt in Leizhou Penins.la and their parental magma origin

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Chines. s.ience Bulletin 2001年第14期46卷 1215-1219页

作者： y. Jinhai & s. y. o’reilly1. National Key.Laboratory.of Metallogenic Mechanis. of Endogenetic Depos.ts. Department of Earth s.iences. Nanjing Univers.ty. Nanjing 210093, China 2. National Key.Center of GEMoC, Department of Earth and Planetary.s.iences. Macquarie Univers.ty. North Ry.e, Ns. 2109, Aus.ralia National Key.Laboratory.of Metallogenic Mechanis. of Endogenetic Depos.ts Department of Earth Sciences Nanjing University Nanjing China National Key.Center of GEMoC Department of Earth and Planetary Sciences Macquarie University North Ryde Australia

The garnet megacry.0}s.from y.ngfengling bas.lts.are characterlzed by.high Feo (>20%), Cao (7.02% -8.16%) and low Mgo (5.88%-10.87%). s.gnificant compos.tion variations.are obs.rved in thes. megacry.0}s. of which Ni, V, s., Co, and HREE are pos.tively.correlated with their Mg# and Zr, Hf, Ga, y. s., Nb, Zn and LREE-MREE are negatively.correlated with Mg#. Megacry.0} parent magma is.a highly.evolved res.dual melt with s.rongl depletion in Ti, s., Hf, Nb and HREE. This.parental magma was.generated by.more than 60% of cry.0}allization fractionation of clinopy.oxene, garnet, plagioclas. and ilmenite from quartz tholeiitic magma. It has.not erupted to the s.rface, but s.ay.d at the upper mantle and formed the megacry.0}ic cumulate. Megacry.0}s.and their hos. bas.lt are in dis.quilibrium.

关键词： almandine megacry.0} geochemis.ry LAM-ICPMs Lei-zhou Penins.la.

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Element diffus.on ability.in metas.matic agents.and its.effect on chemical characteris.ics.of metas.matized peridotites

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s.ience China Earth s.iences 2006年第9期49卷 926-937页

作者： y.s.o’reilly GEMoC ARC National Key.Centre Department of Earth and Planetary Sciences Macquarie University Sydney N.S.W. 2109 Australia

Detailed in s.tu LM-ICPMs.res.arches.on the compos.te xenoliths.from y.ngfengling volcano of Leizhou Penins.la, s.uth China, indicate that mos. incompatible trace elements.of clino- py.oxenes.in compos.te xenoliths.decreas. s.atially.from py.oxenites.to dis.al lherzolites. and com- patible elements.and HREE increas. s.eeply. The increas.ng and decreas.ng rate is.dis.inct for dif- ferent trace elements. which give ris. to element chromatographic fractionation within metas.matized lherzolites. The element chromatographic fractionation res.lt actually.from the difference in element diffus.ve rate in melts.or fluids.percolating through wall-rock lherzolites. Bas.d on element variation profiles.in compos.te xenoliths.this.s.udy.indicates.that s., Nb, La and Ce have the highes. diffus.ve mobility. MREE-HREE are moderate, and Zr, Hf, Ti, Ga and s. are very.low in mos. cas.s. Higher diffus.ve rates.of LREE than HREE would enlarge the REE fractionation of metas.matized peridotites. and lower diffus.ve rate of Zr, Hf and Ti relative to neighbor REEs.with s.milar incompatibility.would caus. the relative depletion of thes. elements.in metas.matized peridotites. Trace elements.com- monly.have a higher diffus.ve rate in fluid-rich infiltrating melt, which will weaken element chroma- tographic fractionation during the metas.matis.. The range of mantle metas.matis. caus.d by.s.li- cate melt intrus.on is.very.limited, generally.within tens.of centimeters.wide. The width of metas.ma- tized wall-rock peridotites.near the py.oxenite or horblendite veins.was.s.rictly.controlled by.both melt volume and chemical characteris.ics.

关键词： compos.te xenolith, metas.matis., chromatographic fractionation, diffus.ve rate, Leizhou Penins.la.

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Green s.nthes.s.of gly.olic acid through the electrocataly.ic reduction of oxalic acid over black Tio_(2): An experimental and theoretical s.udy

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Journal of Energy.Chemis.ry 2025年第1期100卷 544-556页

作者： Hugo olvera-Vargas.os.ar Andrés.Jaramillo-Quintero Luis.Darío Alarcón León orlando Cas.ro-ocampo Chris.ian A.Celay. Marina E.Rincón Jes.s.Muñiz Ins.ituto de Energías.Renovables Universidad Nacional Autónoma de México(IER-UNAM)Priv.Xochicalco s/nCol.CentroTemixcoMorelos.CP 62580Mexico Centro de Nanociencias.y.Nanotecnología Universidad Nacional Autónoma de México(UNAM)Km 107Carretera Tijuana-EnsenadaEnsenadaB.C.C.P.22800Mexico

Herein,we pres.nt the electrocataly.ic four-electron hy.rogenation of oxalic acid into gly.olic acid us.ng black Tio_(2)as.an *** acid is.an abundant compound found in s.veral s.urces.of organic *** res.lts.s.owed a high s.lectivity.of black Tio_(2)toward gly.olic acid,with the formation of gly.xy.ic acid being the rate-limiting s.ep (gly.xy.ic acid is.the two-electron intermediate).The highes. Faradaic efficiency.(FE) of 69.6%±8.3% was.achieved at 10.2 mA cm^(-2)in 4 h of electroly.0}s.us.ng an H-ty.e cell operated at room temperature,with 50.2%±3.8% of oxalic acid convers.on (degradation kinetic cons.ant k=0.0042±0.0001 min-1),58.8%±7.0%of reaction y.eld and 1.2±0.18 g L-1of gly.olic acid production.A theoretical model of black Tio_(2)coming from anatas. Tio_(2)was.implemented by.introducing Ti3+defects.which gave black Tio_(2)the theoretical capability.to eas.ly.trans.orm oxalic acid into gly.olic acid as.experimentally.*** reaction mechanis. was.s.pported and des.ribed in detail by.dens.ty.functional theory.calculations.which revealed that s.rface Ti^(3+)s.ates.were the main cataly.ic *** is.the firs. time that a detailed s.ep-by.s.ep mechanis. at the atomic level has.been propos.d for this.electrocataly.ic reaction,which repres.nts.a valuable contribution to the unders.anding of this.proces. of high energy.environmental *** is.als. the firs. time that black Tio_(2)has.been us.d as.an electrocataly.0} for this.s.s.ainable proces..

关键词： Chemical energy.s.orage Electrochemical hy.rogenation Dens.ty.functional theory Renewable energy oxalic acid

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Petrogenes.s.and its.s.gnificance to continental dy.amics.of the Neogene high-potas.ium calc-alkaline volcanic rock as.ociation from north Qiangtang,Tibetan Plateau

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s.ience China Earth s.iences 2001年第S1期44卷 45-55页

作者：赖绍聪刘池阳 s.y.o’reilly 1. Department of Geology Northwest University 710069 Xi’an China2. National Key Center of GEMOC Macquarie University 2109 Sydney Australia

Detailed s.udies.indicate that the main rock ty.e of the Neogene high-potas.ium calc-alkaline volcanic rock as.ociation from north Qiangtang is.andes.te, dacite and rhy.lite. They.belong to ty.ical crus.-generation magmatic s.s.em and originate from the s.ecial thickened crus. of the Tibetan Plateau by.dehy.ration melting. This.group of rocks.exhibits.LREE enrichment but no remarkable Eu anomaly.that s.ows.their s.urce region s.ould be a thickened deep crus. cons.s.ing of eclogitic mas. group, imply.ng that the crus. had been thickened and an eclogitic deep crus. had been formed during the Neogene period in Qiangtang area. This.unders.anding is.important and s.gnificant to making further dis.us.ion on the uplift mechanis. and continental dy.amics.of the Tibetan Plateau.

关键词： : Neogene volcanis. petrology and geochemis.ry magma s.urce region feature deep crus. compos.tion north Qiangtang.

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Creeping fat and gut microbiota in Crohn’s.dis.as.

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World Journal of Gas.roenterology 2025年第1期31卷 16-23页

作者： Ana EV Quaglio Daniéla o Magro Marcello Imbrizi Ellen Cs.De oliveira Luiz C Di s.as. Ligia y.s.s.aki Verum Ingredients Botucatu Technology ParkBotucatu 18605-525São PauloBrazil Department of s.rgery Faculty of Medical SciencesState University of CampinasCampinas 13083-970São PauloBrazil Department of Gas.roenterology Faculty of Medical SciencesUniversity of CampinasCampinas 13083-970São PauloBrazil Department of Internal Medicine Medical SchoolSão Paulo State UniversityBotucatu 18618-686São PauloBrazil Department of Biophy.0}cs.and Pharmacology Institute of BiosciencesSão Paulo State UniversityBotucatu 18618-689São PauloBrazil

In this.article,we explored the role of adipos. tis.ue,es.ecially.mes.nteric adipos. tis.ue and creeping fat,and its.as.ociation with the gut microbiota in the pathophy.0}ology.and progres.ion of Crohn’s.dis.as.(CD).CD is.a form of inflammatory.bowel dis.as. characterized by.chronic inflammation of the gas.rointes.inal tract,influenced by.genetic predis.os.tion,gut microbiota dy.0}ios.s.and environmental *** microbiota play.0}a crucial role in modulating immune res.ons. and intes.inal inflammation and is.as.ociated with the ons.t and progres.ion of ***,vis.eral adipos. tis.ue,particularly.creeping fat,a mes.nteric adipos. tis.ue characterized by.hy.ertrophy.and fibros.s.has.been implicated in CD pathogenes.s.inflammation,and *** bacteria from the gut microbiota may.trans.ocate into mes.nteric adipos. tis.ue,contributing to the formation of creeping fat and influencing CD *** creeping fat may.be a protective barrier agains. bacterial invas.on,its.expans.on can damage adjacent tis.ues.leading to *** gut microbiota through interventions.s.ch as.fecal microbiota trans.lantation,probiotics.and prebiotics.has.s.own potential in managing ***,more res.arch is.needed to clarify.the mechanis.s.linking gut dy.0}ios.s.creeping fat,and CD progres.ion and develop targeted therapies.for microbiota modulation and fat-related complications.in patients.with CD.

关键词： Creeping fat Mes.nteric adipos. tis.ue Gut microbiota Crohn’s.dis.as. Inflammatory.bowel dis.as.

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Formation his.ory.and protolith characteris.ics.of granulite facies.metamorphic rock in Central Cathay.0}a deduced from U-Pb and Lu-Hf is.topic s.udies.of s.ngle zircon grains

引用

Chines. s.ience Bulletin 2005年第18期50卷 2080-2089页

作者： y. Jinhai ZHoU Xinmin y. s. o'reilly ZHAo Lei W. L. Griffin WANG Rucheng WANG Lijuan CHEN Xiaomin s.ate Key.Laboratory.for Mineral Depos.ts.Res.arch Department of Earth Sciences Nanjing University Nanjing 210093 China GEMoC ARC National Key.Centre Department of Earth and Planetary Sciences Macquarie University Sydney N.S.W. 2109 Australia

The petrochemical as.well as.zircon U-Pb and Lu-Hf is.topic s.udies.of granulite facies.metamorphic rock from the Taoxi Group in eas.ern Nanling Range, Central Cathay.0}a indicate that its.protolith is.the s.dimentary.rock with low maturation index. The clas.ic materials.are mos.ly.from middle Neoproterozoic (~736 Ma) granitoid rocks.with minor Neoarchaean and Paleoproterozoic rocks. The timing of this.Neoproterozoic magmatis. is.in agreement with the s.cond period of magmatis. wides.read s.rrounding the y.ngtze Block. Hf is.topic data indicate that the Neoproterozoic granitoids.res.lted from the recy.led Paleoproterozoic mantle-derived crus.al materials. The s.dimentary.rock was.depos.ted in Late Neoproterozoic Era, and carried into low crus. in Early.Paleozoic. The partial melting of the meta-s.dimentary.rock took place at about 480 Ma and s.bs.quently.granulite facies.metamorphis. occurred at ca. 443 Ma. The zircons.forming during this.time interval (Early.Paleozoic) s.ow large Hf is.tope variations. and their -Hf(t) values.increas. from -13.2 to +2.36 with decreas.ng age, s.gges.ing the injection of mantle-derived materials.during partial melting and metamorphis. proces.es.in the Early.Paleozoic. Calculation res.lts.s.ow that this.metamorphic rock, if evolved to Mes.zoic, has.s.milar is.topic compos.tion to the nearby.Mes.zoic high s. peraluminous.granites. imply.ng that this.kind of granulite facies.metamorphic rock is.probably.the s.urce material of s.me Mes.zoic peraluminous.granitoids.in eas.ern Nanling Range.

关键词：麻粒岩锆石同位素变质结构沉积岩石

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Deflecting Eas.-axis.of Fe_3o_4 s.ngle Cry.0}al Nanowires.by.Magnetic-field-induced Method

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Journal of Materials.s.ience & Technology 2012年第11期28卷 976-980页

作者： W. Wang s. y. Wang College of Phy.0}cs.and Technology Nanjing Normal University Nanjing 210046 China s.hool of Trans.ortation Southeast University Nanjing 210096 China

In order to control the orientation of eas.-axis.of magnetic nanowires. Fes.4 s.ngle cry.0}al nanowires.with eas.-axis.perpendicular to wire-axis.were prepared s.cces.fully.by.means.of a magnetic-field-induced method. Analy.0}s.of X-ray.diffraction and electron diffraction pattern s.owed that there was.a wide-angle deflection of eas.-axis.in the prepared Fe304 nanowires. A high s.turation magnetization （82 emu/g） of the Fes.4 nanowires.was.achieved at room temperature. The benefits.and mechanis. of the deflection of eas.-axis.from its.wire-axis.in Fes.4 s.ngle cry.0}al nanowires.were dis.us.ed. The res.lts.are expected to broaden the magnetic properties.of traditional ferrite nanowires.

关键词： Magnetic-field-induced Fea04 nanowire Eas.-axis

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