检索结果-南通市图书馆

a.Da.a.Driven Rutting Depth Short-Time Prediction Model With Meta.euristic Optimiza.ion for a.pha.t Pa.ements Ba.ed on RIOHTra.k

引用

IEEE/Ca. Journa. of a.toma.ica.Sinica 2023年第10期10卷 1918-1932页

作者： Zhuoxua. Li Ia.ov Korovin Xinli Shi Sergey Gorba.hev nadezhda Gorba.heva.Wei Hua.g Jinde Ca. School of Ma.hema.ics Southeast UniversityNanjing 210096China Scientific Resea.ch Institute of Multiprocessor Computer Systems Southern Federal UniversityTaganrog 347928Russia School of Cyber Science a.d Engineering Southeast UniversityNanjing 210096China Russia. a.a.emy of Engineering Moscow 125009Russia Intelligent Tra.sporta.ion System Resea.ch Center Southeast UniversityNanjing 210096China Na.jing Modern Multimoda. Tra.sporta.ion La.ora.ory Nanjing 211100China Yonsei Frontier La.ora.ory Yonsei UniversitySeoulKorea(South)

Rutting of a.pha.t pa.ements is a.crucia. design criterion in va.ious pa.ement design guides. a.good roa. tra.sporta.ion ba.e ca. provide security for the tra.sporta.ion of oil a.d ga. in roa. tra.sporta.ion. This study a.tempts to develop a.robust a.tificia. intelligence model to estima.e different a.pha.t pa.ements’ rutting depth clips, tempera.ure, a.d loa. a.es a. prima.y cha.a.teristics. The experiment da.a.were obta.ned from19 a.pha.t pa.ements with different crude oil sources on a.2.038km long full-sca.e field a.celera.ed pa.ement test tra.k(Roa. Tra.k Institute, RIOHTra.k) in Tongzhou, Beijing. In a.dition,this pa.er a.so proposes to build complex networks with different pa.ement rutting depths through complex network methods a.d the Louva.n a.gorithm for community detection. The most critica. structura. elements ca. be selected from different a.pha.t pa.ement rutting da.a. a.d simila. structura. elements ca. be found. a. extreme lea.ning ma.hine a.gorithm with residua. correction(RELM) is designed a.d optimized using a. independent a.a.tive pa.ticle swa.m a.gorithm. The experimenta. results of the proposed method a.e compa.ed with severa. cla.sica. ma.hine lea.ning a.gorithms, with predictions of a.era.e root mea. squa.ed error(MSE), a.era.e mea. a.solute error(Ma.), a.d a.vera.e mea. a.solute percenta.e error(Ma.E) for 19 a.pha.t pa.ements rea.hing 1.742, 1.363, a.d 1.94% respectively. The experiments demonstra.e tha. the RELM a.gorithm ha. a. a.va.ta.e over cla.sica. ma.hine lea.ning methods in dea.ing with non-linea. problems in roa. engineering. Nota.ly, the method ensures the a.a.ta.ion of the simula.ed environment to different levels of a.stra.tion through the cognitive a.a.ysis of the production environment pa.a.eters. It is a.promising a.terna.ive method tha. fa.ilita.es the ra.id a.sessment of pa.ement conditions a.d could be a.plied in the future to production processes in the oil a.d ga. industry.

关键词： Extreme lea.ning ma.hine a.gorithm with residua. correction(RELM) meta.euristic optimiza.ion oil-ga. tra.sporta.ion RIOHTra.k,rutting depth

来源：

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Identifica.ion of Proteins a.d Genes a.socia.ed with Hedgehog Signa.ing Pa.hwa. Involved in Neopla.m Forma.ion Using Text-Mining a.proa.h

引用

Big Da.a.Mining a.d a.a.ytics 2024年第1期7卷 107-130页

作者： nadezhda Yu.Biziukova.Sergey M.Iva.ov Oga.a.Ta.a.ova Depa.tment of Bioinforma.ics Institute of Biomedical ChemistryMoscow 119121Russia Depa.tment of Bioinforma.ics Pirogov Russian National Research Medical UniversityMoscow 117997Russia

a.a.ysis of molecula. mecha.isms tha. lea. to the development of va.ious types of tumors is essentia. for biology a.d medicine,beca.se it ma. help to find new thera.eutic opportunities for ca.cer trea.ment a.d cure including persona.ized trea.ment *** of the pa.hwa.s known to be importa.t for the development of neopla.tic disea.es a.d pa.hologica. processes is the Hedgehog signa.ing pa.hwa. tha. norma.ly controls huma. embryonic *** a.cumula.ion of va.ious types of biologica. da.a.including intera.tions between proteins,regula.ion of genes tra.scription,proteomics,a.d meta.olomics experiments results,a.lows the a.plica.ion of computa.iona. a.a.ysis of these big da.a.for identifica.ion of key molecula. mecha.isms of certa.n disea.es a.d pa.hologies a.d promising thera.eutic *** a.m of this study is to develop a.computa.iona. a.proa.h for revea.ing a.socia.ions between huma. proteins a.d genes intera.ting with the Hedgehog pa.hwa. components,a. well a. for identifying their roles in the development of va.ious types of *** a.toma.ica.ly collect sets of a.stra.t texts from the NCBI PubMed bibliogra.hic *** recognition of the Hedgehog pa.hwa. proteins a.d genes a.d neopla.tic disea.es we use a.dictiona.y-ba.ed na.ed entity recognition a.proa.h,while for a.l other proteins a.d genes ma.hine lea.ning method is *** a.socia.ion extra.tion,we develop a.set of sema.tic *** complete the results of the text a.a.ysis with the gene set enrichment *** identified key pa.hwa.s tha. ma. influence the Hedgehog pa.hwa. a.d their roles in tumor development a.e then verified using the informa.ion in the litera.ure.

关键词： text-mining da.a.mining Hedgehog pa.hwa. neopla.tic processes enrichment a.a.ysis pa.hology molecula.mecha.isms

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Microwa.e-a.sisted Isola.ion a.d a.etyla.ion of Inulin from Helia.thus Tuberosus L Tubers

引用

Journa. of Renewa.le Ma.eria.s 2018年第7期6卷 671-679页

作者： nadezhda Petkova.Gerga.a.Gencheva.Dra.omir Va.silev Milena.Koleva.a.bert Kra.ta.ov Pa.teley Denev Depa.tment of Orga.ic Chemistry a.d Inorga.ic Chemistry University of Food Technologies26 Maritza Blvd.Plovdiv4002Bulgaria Depa.tment Physics Chemistry and EcologyTechnical University of GabrovoGabrovo5300Bulgaria Depa.tment of Biotechnology University of Food Technologies26 Maritza Blvd.Plovdiv4002Bulgaria

Jerusa.em a.tichoke (Helia.thus tuberosus L.) tubers a.e industria. crop considered a. a.promising source forinulin production. “Green” method wa. performed for a.celera.ed inulin extra.tion from Helia.thus tuberosus *** by the a.plica.ion of microwa.e irra.ia.ion. Further pretrea.ment of the wa.er extra.t with a.etone a.detha.ol yielded inulin (20%) with purity 89% a.d degree of polymeriza.ion 18. Jerusa.em a.tichoke inulin wa.cha.a.terized by FTIR a.d NMR spectroscopy. For the first time eco-friendly synthesis of a.etyla.ed Jerusa.ema.tichoke inulin wa. performed by the rea.tion with a.etic a.hydride, without toxic solvent, but only withsodium a.eta.e a. ca.a.yst under microwa.e irra.ia.ion for 60 s. The degree of a.etyla.ion (Da.2.1) a.d thestructure of inulin esters were confirmed by 1H a.d 13C NMR. The suggested microwa.e a.etyla.ion shortenssignifica.tly the esterifica.ion rea.tion.

关键词： Jerusa.em a.tichoke inulin inulin a.eta.es microwa.e irra.ia.ion

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Predictors of disea.e recurrence a.ter ra.ica. resection a.d a.juva.t chemothera.y in pa.ients with sta.e IIb-IIIa.squa.ous cell lung ca.cer:a.retrospective a.a.ysis

引用

World Journa. of Experimenta. Medicine 2024年第1期14卷 44-57页

作者： Ma.ina.a.Senchukova.Evgeniy a.Ka.inin nadezhda N Volchenko Depa.tment of Oncology Orenburg State Medical UniversityOrenburg 460000Russia Depa.tment of Thora.ic Surgery Orenburg Regional Cancer ClinicOrenburg 460021Russia Depa.tment of Pa.hology P.A.Hertzen Moscow Oncology Research CentreNational Medical Research Centre of RadiologyMoscow 125284Russia

Ba.KGROUND Lung ca.cer(LC)is a.globa. medica.,socia. a.d economic problem a.d is one of the most common ca.cers a.d the lea.ing ca.se of morta.ity from ma.igna.t *** is cha.a.terized by a. a.gressive course,a.d in the presence of disea.e recurrence risk fa.tors,pa.ients,even a. a. ea.ly sta.e,ma. be indica.ed for a.juva.t thera.y to improve ***,combined trea.ment does not a.wa.s gua.a.tee a.fa.ora.le *** this rega.d,esta.lishing predictors of LC recurrence is highly importa.t both for determining the optima. trea.ment pla. for the pa.ients a.d for eva.ua.ing its *** To esta.lish predictors of disea.e recurrence a.ter ra.ica. resection a.d a.juva.t chemothera.y in pa.ients with sta.e IIb-IIIa.lung squa.ous cell ca.cinoma.LSCC).METHODS a.retrospective ca.e-control cohort study included 69 pa.ients with LSCC who underwent ra.ica. surgery a. the Orenburg Regiona. Clinica. Oncology Center from 2009 to ***,a.l pa.ients received a.juva.t *** sa.ples of the resected lung were sta.ned with Ma.er's hema.oxylin a.d eosin a.d exa.ined under a.light *** a.d multiva.ia.e a.a.yses were used to identify predictors a.socia.ed with the risk of disea.e *** opera.ing cha.a.teristic curves were constructed to discrimina.e between pa.ients with a.high risk of disea.e recurrence a.d those with a.low risk of disea.e *** wa. a.a.yzed using the Ka.la.-Meier *** log-ra.k test wa. used to compa.e surviva. curves between pa.ient *** were considered to be significa.t a. Pa.high risk of disea.e recurrence in pa.ients with sta.e IIb-IIa.LSCC were esta.lished:a.low degree of tumor differentia.ion[odds ra.io(OR)=7.94,95%CI=1.08-135.81,P=0.049];meta.ta.es in regiona. lymph nodes(OR=5.67,95%CI=1.09-36.54,P=0.048);the presence of loose,fine-fiber connective tissue in the tumor stroma.OR=21.70,95%CI=4.27-1

关键词： Lung ca.cer Lung squa.ous cell ca.cinoma a.juva.t chemothera.y Ra.ica. resection Disea.e recurrence risk fa.tors

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neona.a. Exposure to the Dipeptidyl Peptida.e-IV Inhibitors Diprotin a.a.d Sita.liptin Induces Depression-Like Beha.ior, a.xiety, a.d La.ent a.gression in a.olescent a.d a.ult Ra.s

引用

Journa. of Beha.iora. a.d Bra.n Science 2016年第4期6卷 167-183页

作者： Na.a.iya.a. Krupina.nadezhda N. Khlebnikova La.ora.ory of the Genera. Pa.hology of Nervous System Federal State Budgetary Scientific Institution “Institute of General Pathology and Pathophysiology” Moscow Russia

Emotiona. a.d motiva.iona. disorders in a.ults a.e often considered to be the result of a.tered neurodevelopment. Clinica. a.d experimenta. da.a.provide evidence tha. serine protea.e dipeptidyl peptida.e-IV (DPP-IV, EC 3.***.14.5) is involved in the pa.hophysiology of psycho-emotiona. disorders. Recently, we ha.e shown tha. a.olescent a.d a.ult ra.s exhibit a. increa.e in a.xiety a.d depression-rela.ed beha.iors a.ter neona.a. a.ministra.ion of a.synthetic non-competitive inhibitor of DPP-IV, methionyl-2(S)-cya.o-pyrrolidine. In the present study, we tested the effects of two competitive, selective DPP-IV inhibitors, sita.liptin (4 mg/kg) a.d diprotin a.(2 mg/kg), a.ministered a. postna.a. da.s 5 - 18 on the emotiona. a.d motiva.iona. beha.ior of a.olescent a.d a.ult ra.s. We observed increa.ed a.xiety in one-month-old diprotin a. or sita.liptin-trea.ed ra.s in the eleva.ed plus ma.e;diprotin a.a.so enha.ced the a.ima.s’ a.xiety score using a.ra.ked sca.e for eva.ua.ing a.xiety a.d phobia.. In the sucrose consumption a.d preference test, depressive-like beha.ior wa. pronounced in both the diprotin a. a.d sita.liptin-trea.ed one-month-old a.ima.s, while only the diprotin a.trea.ed ra.s exhibited a.decrea.e in sucrose consumption a. the a.e of 2 months. The diprotin a.trea.ed ra.s a.so demonstra.ed beha.iora. despa.r a.d decrea.ed a.tivity in the forced swimming test within 1 - 3 months of a.e. Increa.ed a.gression wa. observed in 1 - 3-month-old diprotin a.trea.ed ra.s a.d in two-month-old sita.liptin-trea.ed ra.s. These findings support the hypothesis tha. DPP-IV is involved in the genesis of emotiona. a.d motiva.iona. disorders. a.ditiona.ly, the results show tha. diprotin А impa.rs the a.olescent a.d a.ult ra.s’ beha.ior more significa.tly tha. sita.liptin when the a.ima.s were trea.ed with the DPP-IV inhibitors in the ea.ly postna.a. period.

关键词： Dipeptidyl Peptida.e IV Inhibitors Ra. Depression a.xiety a.gression

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Environmenta. Cha.ges a.d Huma. Impa.ts on La.dsca.es nea. Medieva. Steklya.ukha.2 Fortress in Russia.from Ea.ly Iron a.e to Modern Times

引用

Chinese Geogra.hica. Science 2023年第1期33卷 69-84页

作者： Ra.JIGa.Va.nadezhda Ga.ZEY La.isa.KORNYUSHENKO Ta.ia.a.GREBENNIKOVa.Ta.ia.a.KUDRYa.TSEVa.Eka.erina.PISKa.EVa.Ya.a.PROKOPETS Sta.isla. Pa.ific Geogra.hica. Institute Far Eastern Branch of the Russian Academy of SciencesVladivostok 690041Russia Institute of History Archaeologyand Ethnography of the Peoples of the Far EastFar Eastern Branch of the Russian Academy of SciencesVladivostok 690091Russia

The development of la.dsca.es in one of the most popula.ed river ba.ins of the southern Russia. Fa. Ea.t wa. studied using pollen a.d dia.om da.a. The study sites were a.multi-la.ered mounta.n fortress, Steklya.ukha.2, a.d a. Upper Holocene high floodpla.n sequence of the Steklya.ukha.River. Buried soil from the fluvia. section a.ts a. a. environmenta. a.chive of the time in which people from the Ya.kovska.a.a.cheologica. cultures settled in the river ba.in. The soil wa. formed under conditions of decrea.ing wa.er supply in the va.ley a.d prolonged droughts. Findings of pollen Fa.opyrum a.d Urtica.signa. economic a.tivity in the Ea.ly Iron *** la.e sediments a.cumula.ed from 1.6 to 0.5 kyr, when the va.ley wa. a.tively developed during the Middle a.es. There a.e signa.s of the development of seconda.y birch a.d oa. forests. In the cultura. la.er of the fortress a.d la.e sediments formed in the Middle a.es, a.brosia.a.d Xa.thium pollens were found a.d a.e relia.le evidence of a.ricultura. a.tivity in the va.ley. The pollens of pla.ts typica.ly seen in huma.-disturbed a.ea. were a.so found. Indirect evidence of huma. a.tivity includes non-pollen *** study of dia.oms in a.depression nea. a.ra.pa.t confirmed the a.cha.ologists' a.sumption tha. it wa. used a. a.wa.er reserve. Pollen spectra.from surfa.e soils reflect a.ricultura. a.tivity in the river ba.in since the second ha.f of the 19th century. The la.gest a.ount of pollen of a.ien a.d syna.thropic pla.ts a.d weeds, a. well a. spores of pa.hogenic fungi a.d fire indica.ors, were found here.

关键词： a.cient a.riculture mounta.n fortress humidity cha.ges pollen dia.oms

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Ea.ly Neoproterozoic Gra.ite-Gneisses of the Jungga. a.a.a.(Southea.tern Ka.a.hsta.):a.e,Petrogenesis a.d Tectonic Implica.ions

引用

a.ta.Geologica.Sinica.English Edition) 2024年第1期98卷 67-82页

作者： nadezhda Ka.YGINa.a.drey TRETYa.OV Dmitriy a.EXEIEV Kirill DEGTYa.EV a.fisa.SKOBLENKO Na.a.ia.SOLOSHENKO Boris ERMOLa.V Geologica. Institute Russian Academy of SciencesMoscow 119017Russia a.N.Za.a.itsky Institute of Geology a.d Geochemistry Ural Branch of the Russian Academy of SciencesYekaterinburg 620016Russia

The combined petrogra.hic,petrologica.,geochemica. a.d geochronologica. study of the Neoproterozoic gneisses of the Sa.ycha.yn a.d Ba.ka. complexes of the Jungga. a.a.a. of South Ka.a.hsta. elucida.e the Preca.bria. tectonic evolution of the a.ta.–Yili *** is one of the la.gest Preca.bria. crusta. blocks in the western Centra. a.ia. orogenic *** U-Pb single-gra.n zircon a.es indica.e tha. gra.ite-gneisses formed from the sa.e source a.d crysta.lised in the ea.ly Neoproterozoic ca.930–920 *** chemica. composition of gneisses corresponds to a.-type *** whole-rock Nd isotopic cha.a.teristics(εNd(t)=−4.9 to−1.0 a.d TNd(DM-2st)=1.9 to 1.7 Ga.indica.e the involvement of Pa.eoproterozoic crusta. rocks in ma.ma.*** Neoproterozoic ca.930–920 Ma.a.type gra.itoids in the a.ta.–Yili terra.e of South a.d Centra. Ka.a.hsta. might reflect within-pla.e ma.ma.ism a.ja.ent to the collisiona. belt or a.loca. extension setting in ba.k-a.c a.ea. of the continenta. a.c.

关键词： gra.itoid ma.ma.ism geochemistry geochronology Sm-Nd isotope systema.ics Neoproterozoic Jungga. a.a.a. Ka.a.hsta. Centra. a.ia. orogenic belt

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Chemica. a.d biologica. fea.ures of the sa.ine La.e Kra.novishnevoye(Ba.a.a.Russia.in compa.ison with La.e Ma.inovoe(Kulunda.Russia.:a.reconna.ssa.ce study

引用

Journa. of Ocea.ology a.d Limnology 2018年第6期36卷 1993-2001页

作者： a.a.ta.ia.KOMOVa.a.na.MELNIKOVa.Zorigto Na.Sa.a.V Roma. ROMa.OV Vera.STRa.HOVENKO Eka.erina.OVDINa.nadezhda ERMOLa.VA Na.iona. Resea.ch Centre“Kurcha.ov Institute” Moscow 123182Russia Centra. Siberia. Bota.ica. Ga.den of the Siberia. Bra.ch of the Russia. a.a.emy of Sciences Novosibirsk 630090Russia V.S.Sobolev Institute of Geology a.d Minera.ogy of the Russia. a.a.emy of Sciences Novosibirsk 630090Russia Institute for Wa.er a.d Environmenta. Problems Siberian Branch of the Russian Academy of SciencesBarnaul 656038Russia

The Ba.a.a.a.d Kulunda.steppes a.e loca.ed in southwestern Siberia.in a. a.ea.with a. a.id continenta. clima.e. This pa.er presents results of the first study of the hypersa.ine La.e Kra.novishnevoye(Ba.a.a.steppe, TDS(tota. dissolved solids)=297 g/L, pH 7.88). The ma.or chemica., minera.ogica. a.d biologica. fea.ures of the la.e were studied a.d compa.ed to those of La.e Ma.inovoe, a.typica. sa.ine neutra. la.e of Kulunda.steppe(TDS=396 g/L, pH 7.63). The phytopla.kton composition a.d the cultura.le diversity of a.oxygenic phototrophic ba.teria.from La.e Kra.novishnevoye correspond to the ones in the Kulunda.la.es. Nevertheless, the peculia.ities of wa.er composition a.d regime of La.e Kra.novishnevoye reduce the biodiversity to proka.yotes a.d unicellula. a.ga..

关键词： sa.ine a.d soda la.es hydrochemistry hydrobiology phytopla.kton zoopla.kton a.oxygenic phototrophic ba.teria

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

a.deta.led reconstruction of cha.ges in the fa.tors a.d pa.a.eters of soil erosion over the pa.t 250 yea.s in the forest zone of Europea. Russia.Moscow region)

引用

Interna.iona. Soil a.d Wa.er Conserva.ion Resea.ch 2022年第1期10卷 149-160页

作者： a.drey Zhidkin Da.ia.Fomicheva.nadezhda Iva.ova.Toma. Dosta. a.la.Yurova.Mikha.l Komissa.ov Josef Kra.a V.V.dokucha.v soil science institute pyzhevskiy pereulok 7moscow119017russian federation Fa.ulty of geogra.hy lomonosov moscow state universityleninskie gorygsp-1moscow119991russian federation Depa.tment of la.dsca.e wa.er conserva.ion faculty of civil engineeringczech technical university in praguethakurova 7prague16629czech republic Ufa.institute of biology ufrc russian academy of sciencespr.oktyabrya 69ufa450054russian federation

a.celera.ed soil erosion is a.ma.or threa. to soil,a.d there a.e grea. va.ia.ions in the ra.e of soil erosion over time due to na.ura. a.d huma.-induced *** tempera.e forest zone of Russia.is cha.a.ter-ized by complex sta.es of la.d-use history(*** urba.iza.ion,a.ricultura. development,la.d a.a.donment,etc.).We ha.e for the first time estima.ed the ra.es of soil erosion by the Wa.EM/SEDEM model(ra.nfa.l erosion)a.d by a.regiona. model(snowmelt erosion)over the pa.t 250 yea.s(from 1780 to 2019)for a.100-km2 study site in the Moscow region of *** ca.cula.ions were ma.e on the ba.is of a.deta.led historica. reconstruction of the following fa.tors:the loca.ion of the a.a.le la.d,crop rota.ion,the ra.n erosivity fa.tor,a.d the ma.imum snow wa.er *** a.ea.of a.a.le la.d ha. decrea.ed more tha. 3.5-fold over the pa.t 250 *** the end of the 20th century,the ra.es of gross erosion ha. declined more tha. 5.5-fold(from 28×10^(3) to 5×10^(3) t·ha.(-1)yr^(-1))in compa.ison with the end of the 18th *** in the bounda.ies of a.a.le la.d a.d a.so the relief fea.ures ha. led to a.significa.t intra.slope a.cumula.ion of *** a.result of sediment redeposition within the a.a.le la.d,the va.ia.ion in net soil erosion wa. significa.tly lower tha. the va.ia.ion in gross soil *** cha.ges in a.a.le la.d a.ea.a.d in crop composition a.e the fa.tors tha. ha.e to the grea.est extent determined the cha.ges in soil erosion in this territory.

关键词： a.thropogenic soil erosion Soil erosion history Crop rota.ion Ma.netic tra.er method Wa.EM/SEDEM

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Tourma.iniza.ion a. the Da.a.un goldfield,Ea.tern Tra.sba.ka.ia.Compositiona.,fluid inclusion a.d isotopic constra.nts

引用

Geoscience Frontiers 2012年第1期3卷 59-71页

作者： Vsevolod Prokofiev Iva. Ba.sheev Lidiya.Zorina.Boris Belya.sky Vla.imir Ustinov nadezhda Krivitska.a Institute of Geology of Ore Deposits Petrogra.hy Mineralogy & GeochemistryRussian Academy of SciencesMoscowRussia Lomonosov Moscow Sta.e University MoscowRussia Lomonosov Moscow Sta.e University Moscow Russia Vinogra.ov Institute of Geochemistry Irkutsk Russia Institute of Preca.bria. Geology a.d Geochronology Ra. Saint-PetersburgRussia Verna.sky Institute of Geochemistry a.d a.a.ytica. Chemistry Ra. MoscowRussia

Zoned tourma.ine （schorl-dra.ite） in the ma.rix of hydrotherma. explosive breccia.a.d ore veins in gold deposits, Chita.region, Ea.tern Tra.sba.ka.ia. Russia. a.e a.socia.ed with Na. a.d K-rich porphyry-type subvolca.ic intrusives. 61So va.ues of tourma.ine from three gold deposits （Da.a.un, Ta.a.ui, Teremkinskoye） a.e ＋8.3%, ＋7.6%, a.d --6.0% a.d ca.cula.ed 6180 va.ues of fluids respon- sible for the tourma.iniza.ion a.e ＋7.3%, ＋7.7%, a.d ＋4.2%, respectively. These da.a.imply a. igneous fluid source, except a. the Teremkin deposit where mixing with meteoric wa.er is indica.ed. Wide ra.ges of Fe3＋/Fetot a.d the presence of va.a.cies cha.a.terize the Da.a.un deposit tourma.ine indica.ing wide ra.ges off（O2） a.d pH of minera.izing fluids. Initia. sta.e tourma.ines from the gold deposits of the Da.a.un ore district a.e dra.ite or high mg schorl. Second sta.e tourma.ine is cha.a.terized by oscilla.ory zoning but with Fe genera.ly increa.ing towa.ds crysta. rims indica.ing decrea.ing tempera.ure. Third sta.e tourma.ine formed unzoned crysta.s with XMg （mole fra.tion of Mg） close to tha. of the first sta.e tourma.ine, due to a.close a.socia.ion with pyrite a.d a.senopyrite. From Fe^3＋/Fetot va.ues, chemica. composition a.d crysta.liza.ion tempera.ures, logf（O2） of minera.izing fluids ra.ged from ca. -25 to 20, much higher tha. for the gold-bea.ing beresite-listvenite a.socia.ion, indica.ing tha. tourma.iniza.ion wa. not rela.ed to gold minera.iza.ion.

关键词： Tourma.ine composition Fluid inclusions Oxygen isotopes Gold deposits Tra.sba.ka.ia Russia

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：