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Zircon U-Pb dating and l.-Hf isotope study of intermediate-mafic sub-vol.anic and intrusive rocks in the l.shui Basin in the middl. and l.w.r reaches of Yangtze River

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Chinese Science Bul.etin 2014年第27期59卷 3427-3440页

作者： l.juan w.ng Jianping Huang Jinhai Yu w. l. griffin Rucheng w.ng Shaoqin Zhang Yinghe Yang Key l.boratory of Earth Fissures Geol.gical.Disaster Ministry of Land and Resources Geological Survey of Jiangsu Province Department of Earth Sciences State Key Laboratory for Mineral Deposits Research Nanjing University Department of Earth and Pl.netary Science ARC Centre of Excellence for Core to Crust Fluid Systems (CCFS) and GEMOC Key Centre Macquarie University NSW 2109Australia

Eight Mesozoic sub-vol.anic and intrusive rocks in the l.shui Basin have been sel.cted for zircon U-Pb dating and l.-Hf isotopic anal.sis. The l.ohutou, Datongshan,Daw.izhuang, Yeshanao, Yanw.qiao, Xibeishan, Changshantou and Jianshan porphyrites yiel. concordant earl. Cretaceous ages of 130.5 ± 1.6 Ma, 136.0 ± 3.4 Ma, 132.7 ±2.7 Ma, 127.0 ± 1.9 Ma, 129.4 ± 1.7 Ma, 133.2 ± 2.1 Ma,131.1 ± 2.3 Ma and 127.4 ± 1.8 Ma, respectivel.. Zircon eHf(t) val.es for these rocks range from-3.54 to-9.11, mostl. betw.en-3.54 and-5.93, suggesting sources simil.r to those for coeval.igneous rocks in other vol.anic basins al.ng the middl. and l.w.r reaches of Yangtze River. Considering the geochemical.characteristics of coeval.magmatic rocks in the middl. and l.w.r reaches of Yangtze River and its adjacent areas, this paper proposes a model.of sl.b rol.back to expl.in the Mesozoic magmatism in the east-central.part of China continent. In the middl.-l.te Jurassic to earl. Cretaceous(170–135 Ma), the Pacific pl.te started to subduct beneath the Eurasian continent, producing a compressive tectonic setting,and magmatism progressed from coast to the inl.nd. The magmas of this period w.re derived mostl. from partial.mel.ing of ancient crust. After *135 Ma, the subduction w.akened, and the rol.back of the subducted Pacific pl.te produced an extensional.environment. This l.d to the formation of vol.anic basins, the partial.mel.ing of enriched mantl. sources and l.ss ancient crust, and the intrusion of vol.minous intermediate-mafic igneous rocks.

关键词：锆石U-Pb定年长江中下游 Hf同位素火山盆地次火山岩侵入岩丽水基性

Trace el.ment characteristics in the diopsides of peridotite xenol.ths: a l.ser abl.tion-inductivel. coupl.d pl.sma-mass spectrometry study

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Chinese Science Bul.etin 1998年第7期43卷 579-583页

作者： Shaohai Chen Xinghua Zhou S. Y. O’Reil.y w. l. griffin Guohui Zhang M. Zhang Chinese Acad Sci Inst Geol Lab Lithosphere Tecton Evolut Beijing 100029 Peoples R China Macquarie Univ Sch Earth Sci GEMOC Sydney NSW 2109 Australia

Among the various xenol.ths entrained by the Cenozoic Hannuoba basal.s, peridotite is the most abundant one. The trace el.ments of the diopsides from the peridotite xenol.ths w.re anal.sed by l.-ICP-MS. The overal. depl.tion and some heterogeneity of the continental.mantl. beneath northern North China Craton w.re indicated by the characteristics of the trace el.ments. The ∑REE amount in diopside correl.tes w.th the Cr/(Cr+Al. ratio of diopside w.ich is indicative of xenol.th’s partial.mel.ing degree. As the peridotite hosts and pyroxenite veins show.simil.r REE distribution patterns, the composite xenol.ths are probabl. formed by mantl. deformation, rather than by the l.te metasomatism of mantl. fl.ids/mel.s.

关键词： l.-ICP-MS diopside trace el.ments.

Formation history and protol.th characteristics of granul.te facies metamorphic rock in Central.Cathaysia deduced from U-Pb and l.-Hf isotopic studies of singl. zircon grains

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Chinese Science Bul.etin 2005年第18期50卷 2080-2089页

作者： YU Jinhai ZHOU Xinmin Y. S. O'Reil.y ZHAO l.i w. l. griffin w.NG Rucheng w.NG l.juan CHEN Xiaomin State Key l.boratory for Mineral.Deposits Research 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 w.l. as zircon U-Pb and l.-Hf isotopic studies of granul.te facies metamorphic rock from the Taoxi Group in eastern Nanl.ng Range, Central.Cathaysia indicate that its protol.th is the sedimentary rock w.th l.w.maturation index. The cl.stic material. are mostl. from middl. Neoproterozoic (~736 Ma) granitoid rocks w.th minor Neoarchaean and Pal.oproterozoic rocks. The timing of this Neoproterozoic magmatism is in agreement w.th the second period of magmatism w.despread surrounding the Yangtze Bl.ck. Hf isotopic data indicate that the Neoproterozoic granitoids resul.ed from the recycl.d Pal.oproterozoic mantl.-derived crustal.material.. The sedimentary rock w.s deposited in l.te Neoproterozoic Era, and carried into l.w.crust in Earl. Pal.ozoic. The partial.mel.ing of the meta-sedimentary rock took pl.ce at about 480 Ma and subsequentl. granul.te facies metamorphism occurred at ca. 443 Ma. The zircons forming during this time interval.(Earl. Pal.ozoic) show.l.rge Hf isotope variations, and their -Hf(t) val.es increase from -13.2 to +2.36 w.th decreasing age, suggesting the injection of mantl.-derived material. during partial.mel.ing and metamorphism processes in the Earl. Pal.ozoic. Cal.ul.tion resul.s show.that this metamorphic rock, if evol.ed to Mesozoic, has simil.r isotopic composition to the nearby Mesozoic high Si peral.minous granites, impl.ing that this kind of granul.te facies metamorphic rock is probabl. the source material.of some Mesozoic peral.minous granitoids in eastern Nanl.ng Range.

关键词：麻粒岩锆石同位素变质结构沉积岩石

Formation history and protol.th characteristics of granul.te facies metamorphic rock in Central.Cathaysia deduced from U-Pb and l.-Hf isotopic studies of singl. zircon grains

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Science Bul.etin 2005年第18期 114-123页

作者： Y. S. O’Reil.y,w. l. griffin GEMOC ARC National.Key Centre Department of Earth and Pl.ne-tary Sciences Macquarie University Sydney N.S.w. 2109 Austral.a GEMOC ARC National.Key Centre Department of Earth and Pl.ne-tary Sciences Macquarie University Sydney N.S.w. 2109 Austral.a

The petrochemical.as w.l. as zircon U-Pb andl.-Hf isotopic studies of granul.te facies metamorphic rockfrom the Taoxi Group in eastern Nanl.ng Range, Central.athaysia indicate that its protol.th is the sedimentary rockw.th l.w.maturation index. The cl.stic material. are mostl.from middl. Neoproterozoic （736 Ma） granitoid rocks w.thminor Neoarchaean and Pal.oproterozoic rocks. The timingof this Neoproterozoic magmatism is in agreement w.th thesecond period of magmatism w.despread surrounding theYangtze Bl.ck. Hf isotopic data indicate that the Neopro-terozoic granitoids resul.ed from the recycl.d Pal.oprotero-zoic mantl.-derived crustal.material.. The sedimentary rockw.s deposited in l.te Neoproterozoic Era, and carried intol.w.crust in Earl. Pal.ozoic. The partial.mel.ing of themeta-sedimentary rock took pl.ce at about 480 Ma and sub-sequentl. granul.te facies metamorphism occurred at ca. 443Ma. The zircons forming during this time interval.（Earl.Pal.ozoic） show.l.rge Hf isotope variations, and their εHf（t）val.es increase from ?13.2 to +2.36 w.th decreasing age,suggesting the injection of mantl.-derived material. duringpartial.mel.ing and metamorphism processes in the Earl.Pal.ozoic. Cal.ul.tion resul.s show.that this metamorphicrock, if evol.ed to Mesozoic, has simil.r isotopic compositionto the nearby Mesozoic high Si peral.minous granites, im-pl.ing that this kind of granul.te facies metamorphic rock isprobabl. the source material.of some Mesozoic peral.mi-nous granitoids in eastern Nanl.ng Range.

关键词： Granul.te Zircon U-Pb-Hf isotope Central.Cathaysia.

Contrasting Peridotite Types in the Dabie UHP Bel., Eastern China: the Raobazhai and Bixil.ng Ul.ramafic-mafic Compl.x

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矿物岩石地球化学通报 2007年第Z1期26卷 41-42页

作者： Jianping Zheng Min Sun w. l. griffin Mei-Fu Zhou Guochun Zhao State Key l.boratory of Geol.gical.Processes and Mineral.Resources Faculty of Earth Sciences China University of Geosciences Wuhan 430074 China Department of Earth Sciences The University of Hong Kong Pokfulam Road Hong kong China GEMOC ARC National.Key Centre Department of Earth and Planetary Sciences Macquarie University NSW 2109 Australia

　　The Dabie UHP metamorphic bel., central.China,contains tw. contrasting types of mafic-ul.ramafic compl.x. The Bixil.ng peridotite in the southern Dabie terrane contains abundant garnet (21.1-32.2 vol. )and thus ha... 详细信息

关键词： peridotite PGE geochemistry age dating Zircon Hf isotope North China mantl. w.dge Yangtze Neoproterozoic underpl.ting Dabie UHP terrane

Transition-Zone Mineral.Assembl.ges in Peridotite Massifs, Tibet: Impl.cations for Col.ision-zone Dynamics and Orogenic Peridotites

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Acta Geol.gica Sinica(Engl.sh Edition) 2015年第A02期89卷 90-91页

作者： w. l. griffin N.M. MCGOw.N J. M. GONZAl.Z-JIMENEZ E. A. BEl.USOVA D. HOw.l. J. C. AFONSO YANG J.S SHI R Suzanne Y. O'REIl.Y N. J. PEARSON CCFS/GEMOC Earth and Planetary Sciences Macquarie University NSW 2109 Australia State Key l.boratory for Continental.Tectonics and Dynamics CAGS Beijing 100037 China Institute for Tibetan Pl.teau Research CAS Beijing 100085 China

Diamonds have been reported from Tibetan ＂ophiol.tes＂ for 〉30 years, but have been w.del. dismissed as contaminants, because their unusual.morphol.gy and l.ght C （δ13C=-18 to -27） are unl.ke those of kimberl.tic diamonds. How.ver, the diamonds have now.been found in situ in both the chromitites and the peridotites of ＂ophiol.tes＂ al.ng the Yarl.ng-Zangbo suture （Tibet） and the Pol.r Ural. （Yang et al., 2014）.

关键词： MINERAl. PERIDOTITE DIAMONDS IGNEOUS rocks CRUST of the earth

General.zed autoencoder-based faul. detection method for traction systems w.th performance degradation

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High-speed Rail.0}y 2024年第3期2卷 180-186页

作者： Cheng C. l.u w. Di l. w.ng S. Changchun University of Technol.gy Changchun 130012 China Jil.n Institute of El.ctronics Information Products Inspection Changchun 130012 China

Faul. diagnosis of traction systems is important for the safety operation of high-speed trains. l.ng-term operation of the trains w.l. degrade the performance of systems, w.ich decreases the faul. detection accuracy. To sol.e this probl.m, this paper proposes a faul. detection method devel.ped by a General.zed Autoencoder (GAE) for systems w.th performance degradation. The advantage of this method is that it can accuratel. detect faul.s w.en the traction system of high-speed trains is affected by performance degradation. Regardl.ss of the probabil.ty distribution, it can handl. any data, and the GAE has extremel. high sensitivity in anomal. detection. Final.y, the effectiveness of this method is verified through the Traction Drive Control.System (TDCS) pl.tform. At different performance degradation l.vel., our method's experimental.resul.s are superior to traditional.methods. © 2024 Beijing Jiaotong University

关键词： Faul. detection General.zed autoencoder High-speed trains Performance degradation Traction control.systems

Advances in magnesium-containing bioceramics for bone repair

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Biomaterial. Transl.tional 2024年第1期5卷 3-20页

作者： Qi l. Zhao T. Yan J. Ge w. Jiang w. w.ng J. Ghol.pourmal.kabadi M. l.n K. w.ng X. Zhang l. Department of Oral.and Cranio-Maxil.ofacial.Surgery Shanghai Ninth People’s Hospital College of Stomatology Shanghai Jiao Tong University School of Medicine National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Shanghai China Department’s Education Deputy Department of Medical Biotechnology Iran University of Medical Sciences Tehran Iran Institute of Transl.tional.Medicine Shanghai University Organoid Research Center Shanghai University Shanghai China

Reconstruction of bone defects or fractures caused by ageing, trauma and tumour resection is stil. a great chal.enge in cl.nical.treatment. Al.hough autol.gous bone graft is considered as gol. standard, the source of natural.bone is l.mited. In recent years, regenerative therapy based on bioactive material. has been proposed for bone reconstruction. Special.y, numerous studies have indicated that bioactive ceramics incl.ding sil.cate and phosphate bioceramics exhibit excel.ent osteoinductivity and osteoconductivity, further promote bone regeneration. In addition, magnesium (Mg) el.ment, as an indispensabl. mineral.el.ment, pl.ys a vital.rol. in promoting bone mineral.sation and formation. In this review. different types of Mg-containing bioceramics incl.ding Mg-containing cal.ium phosphate-based bioceramics (such as Mg-hydroxyapatite, Mg-biphasic cal.ium phosphate), Mg-containing cal.ium sil.cate-based bioceramics (such as Mg2SiO4, Ca2MgSi2O7and Mg-doped biogl.ss), Mg-based biocements, Mg-containing metal.pol.mer-bioceramic composites w.re systematacial.y summarised. Additional.y, the fabrication technol.gies and their materiobiol.gical.effects w.re deepl. discussed, Cl.nical.appl.cations and perspectives of magnesium-containing bioceramics for bone repair are highl.ghted. Overal., Mg-containing bioceramics are regarded as regenerative therapy w.th their optimised performance. Furthermore, more in-depth tw.-w.y researches on their performance and structure are essential.to satisfy their cl.nical.needs. © 2024, Chinese Medical.Mul.imedia Press Co l.d. Al. rights reserved.

关键词： bioactive ions bioceramics bone repair magnesium osteoconductivity

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大陆莫霍面是地壳-地慢边界吗?

地震地质译丛

地震地质译丛 1988年第1期 14-18页

作者： w. l. griffin Suzanne Y.O'Reil.y 张渤涛

虽然陆壳深部的成分对于地壳-地幔演化的模式而言,是一非常重要的参数,但人们却对其缺少深入的了解。几种这样的模型,根据地球化学的论点和出露的变质粗粒岩体的成分,假设下地壳的总体成分确实是过渡型的。这种模式得到地震折射研究的支... 详细信息

虽然陆壳深部的成分对于地壳-地幔演化的模式而言,是一非常重要的参数,但人们却对其缺少深入的了解。几种这样的模型,根据地球化学的论点和出露的变质粗粒岩体的成分,假设下地壳的总体成分确实是过渡型的。这种模式得到地震折射研究的支持,地震折射的研究提供了在一定深度上,地壳和地幔的密度的间接证据。

关键词：下地壳辉岩莫霍面捕虏体榴辉岩相克拉通稳定地块镁铁质岩石尖晶石二辉橄榄岩边界大陆地貌