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What Caused the Inconsistency between Rb-Sr and^(40)Ar-^(39)Ar Ages of Authigenic Illites?

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Journal of Earth Science 2022年第5期33卷 1145-1151页

作者： Entao Liu I.Tonguc uysal Jian-Xin Zhao Zi'ao Zhang Xudong Lin Hubei Key Laboratory of Marine Geological Resources China University of GeosciencesWuhan 430074China Radiogenic Isotope Facility School of Earth and Environmental SciencesThe University of QueenslandBrisbaneQld4072Australia Department of Geological Engineering Istanbul University-CerrahpaşaIstanbul34098Turkey

Radiogenic isotope dating of illitic clays has been widely used to reconstruct thermal and fluid flow events in siliciclastic sedimentary basins,the information of which is critical to investigate mechanisms of hydrocarbon *** study carried out Rb-Sr and^(40)Ar-^(39)Ar dating of authigenic illitic clay samples separated from the Palaeogene sandstone in the northern South China *** Rb-Sr data further confirm the previously reported three periods of fluid flow events(at 34.5±0.9,31.2±0.6,and 23.6±0.8 Ma,respectively)in the northern South China Sea,which are related to regional episodic ***,^(40)Ar-^(39)Ar ages of illite obtained in this study are significantly younger than the corresponding Rb-Sr *** significantly younger^(40)Ar-^(39)Ar ages were probably due to ^(40)Ar loss caused by later dry heating events on the Hainan Island that have not affected the Rb-Sr isotopic *** inconsistency between Rb-Sr and^(40)Ar-^(39)Ar data should be attributed to different isotopic behaviors of K-Ar and Rb-Sr isotopic systematics in *** results indicate that Rb-Sr isotopic dating method may be a preferential approach for clay dating in geological settings where exist younger dry heating events.

关键词： authigenic illite isotope dating Rb−Sr isochron ^(40)Ar-^(39)Ar dating inconsistency geochemistry

土耳其西部新生代斑岩成矿岩浆氧逸度-挥发份元素组成演化特征--来自锆石和磷灰石组成约束

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岩石学报 2021年第8期37卷 2339-2363页

作者：赵俊兴苏本勋 uysal I brahim AYDIN Faruk 肖燕 SEN Cuneyt 回凯旋秦克章中国科学院矿产资源研究重点实验室中国科学院地质与地球物理研究所北京100029 中国科学院地球科学研究院北京100029 中国科学院大学地球与行星科学学院北京100049 Department of Geological Engineering Karadeniz Technical UniversityTrabzon 61080 岩石圈演化国家重点实验室中国科学院地质与地球物理研究所北京100029

特提斯成矿域中段的土耳其西部集中产出了与俯冲、碰撞-后碰撞、伸展动力学背景有关的斑岩型铜、钼、金矿床。前人已完成了针对这些斑岩型矿床构造背景的大量研究工作,但对于区内不同构造背景下斑岩型矿床的成矿岩浆源区性质、成矿元素... 详细信息

特提斯成矿域中段的土耳其西部集中产出了与俯冲、碰撞-后碰撞、伸展动力学背景有关的斑岩型铜、钼、金矿床。前人已完成了针对这些斑岩型矿床构造背景的大量研究工作,但对于区内不同构造背景下斑岩型矿床的成矿岩浆源区性质、成矿元素-挥发分含量和成矿物质演化关系尚未有系统研究。而这些研究将对认识中特提斯构造域晚白垩世以来在新特提斯洋俯冲、欧亚板块-Tauride-Anatolide板块碰撞和伸展过程中斑岩矿床形成时地壳厚度、壳幔相互作用方式及成矿物质演化过程具有重要意义。本研究选择土耳其西段三个斑岩成矿带(Tavşanl带、Biga半岛成矿带和Afyon-Konya带)内五个斑岩型矿床的成矿岩体与同期侵入岩-火山岩,开展锆石微量元素和磷灰石主量元素研究,限定碰撞与伸展环境下斑岩型矿床成矿岩浆的形成温度、氧逸度条件及其与岩浆形成时地壳厚度的关系,利用磷灰石F-Cl-S含量组成揭示熔体挥发分和硫元素的物质组成,进而约束新特提斯洋俯冲-碰撞-伸展过程中斑岩系统的深部物质演化规律。研究结果表明,土耳其西部新生代斑岩型矿床成矿岩浆锆石大部分落于高水含量-高氧逸度区间,具有相似的稀土元素标准化配分曲线。从始新世到中新世,锆石氧逸度Ce 4+/Ce 3+比值呈现出先降低(斑岩型Cu-Mo矿到斑岩型Mo矿)后升高(斑岩型Mo-Cu矿到斑岩Au矿)的趋势,且相对于斑岩型Mo矿和Mo-Cu矿,斑岩型Au矿和Cu-Mo矿成矿岩体的锆石形成时具有相对较高的氧逸度。绝大部分斑岩型矿床成矿岩体的锆石Eu N/Eu N*位于0.4~0.7之间,但斑岩型Mo矿和斑岩型Mo-Cu矿床的锆石具有相对较低的Eu N/Eu N*比值,可能是由于在结晶时熔体受斜长石结晶影响较大。锆石微量元素显示(Yb/Gd和Hf/Y-Th/u)锆石组成大部分受岩浆房中角闪石±榍石±磷灰石分离结晶控制。根据锆石Ti温度计估算土耳其西部斑岩型矿床成矿岩体及其相关岩体的形成温度在650~900℃之间,结晶温度从斑岩型Au矿、斑岩型Cu-Mo/Mo-Cu矿至斑岩型Mo矿呈现递减趋势。对于熔体的挥发分与硫含量组成,始新世-渐新世斑岩型Cu-Mo与Mo矿床成矿岩浆相对具有高F和低Cl组成,中新世伸展环境形成的斑岩型Mo-Cu矿和斑岩型Au矿床成矿岩浆Cl含量普遍较高。与成矿岩体同期的暗色包体或基性岩脉中磷灰石计算获得的熔体硫含量均大于侵入体对应熔体的硫含量,且具有不均一的含量组成,表明基性岩浆注入可能为岩浆房提供硫。结合区域动力学和地壳厚度估算,本文认为触发土耳其西部新生代斑岩矿床形成的动力学机制是:在新特提斯洋向北单向汇聚的背景下,北部始新世-渐新世斑岩矿床受控于碰撞后俯冲的新特提斯洋板片(Vardar洋)后撤-回转-断离过程;南部中新世斑岩矿床的形成则受控于爱琴海板片俯冲控制的地壳伸展-减薄过程。北侧Izmir-Ankara-Erzincan缝合带附近的Tavşanl与Biga半岛斑岩成矿带始新世-渐新世斑岩型矿床的形成与熔融-同化-储存-均一过程(MASH)有关,深部地壳热区过程(DCHZ)与中新世Afyon-Konya带斑岩型矿床的形成有关。

关键词：斑岩矿床锆石微量元素岩浆氧逸度磷灰石主量元素成矿物质演化土耳其西部特提斯构造域

Is thioredoxin reductase involved in the defense againsi DNA fragmentation in varicocele？

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Asian Journal of Andrology 2013年第4期15卷 518-522,I0009页

作者： Gill Ozdemirler Erata Canan Kfiqiikgergin Giilsan Aktan Ates KadoOuI Miijdat uysal Necla Kocak-Toker Department of Biochemistry Istanbul Medical Faculty University of Istanbul Qapa 34093 Istanbul Turkey and Department of urology Istanbul Medical Faculty University of Istanbul ~apa 34093 Istanbul Turkey

We aimed to investigate the role of thioredoxin reductase （TR） and inducible heat shock protein 70 （iHsp70） and their relationship with sperm quality in varicocele （VAR） patients. Semen samples were obtained from 16 subfertile men diagnosed as VAR and 10 fertile men who applied to the Andrology Laboratory of Istanbul Medical Faculty of Istanbul university. The sperm TR and iHsp 70 expression levels were determined using Western blot analysis. The TR activity of the sperm was assayed spectrophometrically. The sperm quality was evaluated both by conventional sperm analysis and by a terminal deoxynucleotidyl transferase-mediated duTP nick end-labeling （TuNEL） technique that assayed DNA-fragmented spermatozoa in semen samples. The percentage of TuNELopositive spermatozoa in the VAR group （16.3%±5.6%） was higher than that in the fertile group （5.5%±1.9%）. Significant inverse correlations were detected between the percentage of TuNEL-positive cells and both the concentration （r=--0.609; P=0.001） and motility （r=--0.550; P=-0.004） of spermatozoa. Both the TR expression and activity were increased significantly in the VAR group （u=22.0; P=0.001 and u=33.5 P=0.012, respectively） as analyzed using the Mann-Whitney uWilcoxon rank sum Wtest. Furthermore, significant positive correlations were found between TR expression and activity （r=-0.406; P=O.040） and between TR expression and the percentage of TuNEL-positive cells （r=0.665; P=-0.001）. Sperm iHsp70 expression did not differ between the VAR and fertile groups. In conclusion, increased sperm TR expression might be a defense mechanism against apoptosis in the spermatozoa of men with VAR.

关键词： DNA damage inducible heat shock protein 70 (iHsp70) thioredoxin reductase (TR) spermatozoa varicocele

热事件发育地区自生黏土矿物形成过程分析:以北部湾盆地福山凹陷为例

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矿物岩石地球化学通报 2017年第1期36卷 59-66页

作者：刘恩涛王华沈能平 ZHAO Jian-xin FENG Yue-xing uysal I Tongu 中国地质大学(武汉)海洋学院武汉430074 中国地质大学(武汉)构造与油气资源教育部重点实验室武汉430074 中国科学院地球化学研究所矿床地球化学国家重点实验室贵阳550081 Radiogenic Isotope Facility School of Earth SciencesThe University of Queensland

自生黏土矿物形成过程是个备受关注的科学问题,查明该过程对于盆地热史分析至关重要。本次研究以北部湾盆地福山凹陷岩浆侵入体附近的沉积砂岩为研究对象,使用离心机分离出不同粒度的自生黏土矿物,并对其进行系统的矿物学、Rb-Sr年代学... 详细信息

自生黏土矿物形成过程是个备受关注的科学问题,查明该过程对于盆地热史分析至关重要。本次研究以北部湾盆地福山凹陷岩浆侵入体附近的沉积砂岩为研究对象,使用离心机分离出不同粒度的自生黏土矿物,并对其进行系统的矿物学、Rb-Sr年代学及^(40)Ar-^(39)Ar年代学研究。结果表明,粗砂岩中自生黏土矿物富集且纯度很高,是开展年代学分析的理想对象;Rb-Sr等时线定年结果显示自生黏土矿物形成年代为~31 Ma,该年龄与岩浆岩u-Pb年代具有非常好的耦合关系,而^(40)Ar-^(39)Ar定年法受到"^(40)Ar丢失"的影响而缺乏地质意义。本次研究说明热事件发育地区自生黏土矿物的生长过程严格受控于短时间的岩浆岩侵入事件,而非长时间的盆地埋藏过程。

关键词：自生黏土矿物构造热事件 Rb-Sr法定年 40Ar-39Ar法定年北部湾盆地

Permo–Triassic and Liassic Tethyan Oceanic Tracts within the Pontide Belt Along the Southern Margin of Eurasia, Northern Anatolia

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Acta Geologica Sinica(English Edition) 2017年第S1期91卷 33-34页

作者： E.SARIFAKIOGLu Y.DILEK M.SEVIN S.PEHLIVAN O.K EMIR A.MOLLER T.BAYANOVA I.uysal M.KELES General Directorate of Mineral Research & Explor Department of Geology & Env.Earth Science Miami University The university of Kansas Department of Geology Geol.Inst.of the Kola Science Centre of the RAS Dept.of Geol.Engineering Karadeniz Technical University Makro Yet.Madencilik

The Pontide belt in northern Turkey includes three major tectonic terranes,the Strandja Massif（Sj M）,and the Istanbul（ISZ）and Sakarya Zones（SZ）(Fig.1).We present new age and geochemical data from ophiolites and ophiolitic mélanges within the Sakarya Zone and show that these mafic–ultramafic rocks are the remnants of Tethyan oceanic lithosphere formed in different tectonic *** main ophiolite occurrences investigated in this study along the Karakaya Suture（KS）are associated with the latest Triassic Cimmeride orogeny,and in the Küre–Yusufeli ophiolite belt are part of the Alpide *** Karakaya Suture Zone ophiolites in northern west Turkey are comprised mainly of the Denizgoren（?anakkale）ophiolite,Bo?azk?y（Bursa）,Geyve（Sakarya）,Almac?k（Düzce）and?ele（Bolu）*** Denizg?ren ophiolite largely contains upper mantle peridotites,which are equivalents of the Permo–Triassic Lesvos peridotites and mélange units farther SW in the northern Aegean *** Bo?azk?y ophiolite includes serpentinite and metagabbro,and the Almac?k and Geyve ophiolites display an almost complete Penrose–type sequence consisting of serpentinizeduppermantleperidotites,cumulate ultramafic–mafic rocks,isotropic gabbros,dolerite and plagiogranite dikes,and extrusive rocks.u–Pb zircon dating of plagiogranite dikes from?ele has revealed an igneous age of 260 Ma,and 255,235,227 Ma from Almac?k（Bozkurt et al.,2012a,b）.Consistent with the previouslypublished Permo–Triassic age,we obtained a 268.4±6.3 Ma u–Pb zircon age from a plagiogranite dike within the Almacik ophiolite to the *** KS ophiolite belt containing the?ele,Almac?k,Geyve ophiolites within the SZ extends westward into the Armutlu Peninsula and then into the Biga Peninsula（***?ren ophiolite）and most likely connects with the remnants of the Triassic Meliata–Meliac ocean basin（Stampfli and Borel,2002）in the Balkan *** KS ophiolites also continue eastward within the Pontide Belt into the Elekda?ophiolite（e

关键词： Triassic and Liassic Tethyan Oceanic Tracts within the Pontide Belt Along the Southern Margin of Eurasia rock KS Pb Permo Northern Anatolia

方解石激光原位u-Pb测年及其在海相碳酸盐岩油气勘探中的应用

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地质论评 2021年第S1期67卷 254-256页

作者：杨鹏 ZHAO Jian-xin NuRIEL Perach uysal I Tonguç NGuYEN Ai Duc ZHOu Renjie FENG Yue-xing 邬光辉任战利夏斌西北大学大陆动力学国家重点实验室中国陕西西安710069 西北大学地质学系中国陕西西安710069 School of Earth and Environmental Sciences The University of QueenslandBrisbaneQLD 4072Australia Geological Survey of Israel 32 Yeshayahu Leibowitz St.Jerusalem9692100Israel CSIRO Energy 26 Dick Perry AvenueKensington WA 6151Australia 西南石油大学地球与科学技术学院中国四川成都610500 中山大学海洋科学学院中国广东广州510006

我国大型海相碳酸盐岩油气田主要分布在环青藏高原盆山体系内的塔里木、鄂尔多斯和四川盆地三大多旋回叠合盆地。与国外稳定构造背景下晚期成藏的海相碳酸盐岩油气田相比,我国多旋回叠合盆地海相碳酸盐岩地层时代老、埋藏深,经历了多期... 详细信息

我国大型海相碳酸盐岩油气田主要分布在环青藏高原盆山体系内的塔里木、鄂尔多斯和四川盆地三大多旋回叠合盆地。与国外稳定构造背景下晚期成藏的海相碳酸盐岩油气田相比,我国多旋回叠合盆地海相碳酸盐岩地层时代老、埋藏深,经历了多期次成藏过程,在漫长的地质演化历史中油气藏后期改造破坏严重,成储成藏条件复杂,油气勘探难度大。

关键词：方解石原位u-Pb测年碳酸盐岩油气勘探

Performance and calibration of quark/gluon-jet taggers using 140 fb^(-1) of pp collisions at √s=13 TeV with the ATLAS detector

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Chinese Physics C 2024年第2期48卷 1-25页

作者： G. Aad B. Abbott K. Abeling N.J. Abicht S.H. Abidi A. Aboulhorma H. Abramowicz H. Abreu Y. Abulaiti B.S. Acharya C. Adam Bourdarios L. Adamczyk S.V. Addepalli M.J. Addison J. Adelman A. Adiguzel T. Adye A.A. Affolder Y. Afik M.N. Agaras J. Agarwala A. Aggarwal C. Agheorghiesei A. Ahmad F. Ahmadov W.S. Ahmed S. Ahuja X. Ai G. Aielli A. Aikot M. Ait Tamlihat B. Aitbenchikh I. Aizenberg M. Akbiyik T.P.A. Åkesson A.V. Akimov D. Akiyama N.N. Akolkar K. Al Khoury G.L. Alberghi J. Albert P. Albicocco G.L. Albouy S. Alderweireldt M. Aleksa I.N. Aleksandrov C. Alexa T. Alexopoulos F. Alfonsi M. Algren M. Alhroob B. Ali H.M.J. Ali S. Ali S.W. Alibocus M. Aliev G. Alimonti W. Alkakhi C. Allaire B.M.M. Allbrooke J.F. Allen C.A. Allendes Flores P.P. Allport A. Aloisio F. Alonso C. Alpigiani M. Alvarez Estevez A. Alvarez Fernandez M. Alves Cardoso M.G. Alviggi M. Aly Y. Amaral Coutinho A. Ambler C. Amelung M. Amerl C.G. Ames D. Amidei S.P. Amor Dos Santos K.R. Amos V. Ananiev C. Anastopoulos T. Andeen J.K. Anders S.Y. Andrean A. Andreazza S. Angelidakis A. Angerami A.V. Anisenkov A. Annovi C. Antel M.T. Anthony E. Antipov M. Antonelli F. Anulli M. Aoki T. Aoki J.A. Aparisi Pozo M.A. Aparo L. Aperio Bella C. Appelt A. Apyan N. Aranzabal S.J. Arbiol Val C. Arcangeletti A.T.H. Arce E. Arena J-F. Arguin S. Argyropoulos J.-H. Arling O. Arnaez H. Arnold G. Artoni H. Asada K. Asai S. Asai N.A. Asbah J. Assahsah K. Assamagan R. Astalos S. Atashi R.J. Atkin M. Atkinson H. Atmani P.A. Atmasiddha K. Augsten S. Auricchio A.D. Auriol V.A. Austrup G. Avolio K. Axiotis G. Azuelos D. Babal H. Bachacou K. Bachas A. Bachiu F. Backman A. Badea P. Bagnaia M. Bahmani A.J. Bailey V.R. Bailey J.T. Baines L. Baines O.K. Baker E. Bakos D. Bakshi Gupta V. Balakrishnan R. Balasubramanian E.M. Baldin P. Balek E. Ballabene F. Balli L.M. Baltes W.K. Balunas J. Balz E. Banas M. Bandieramonte A. Bandyopadhyay S. Bansal L. Barak M. Barakat E.L. Barberio D. Barberis M. Barbero M.Z. Barel K.N. Barends T. Barillari M-S. Barisits T. Barklow P. Baron D.A. Baron Mo The ATLAS Collaboration

The identification of jets originating from quarks and gluons,often referred to as quark/gluon tagging,plays an important role in various analyses performed at the Large Hadron Collider,as Standard Model measurements and searches for new particles decaying to quarks often rely on suppressing a large gluon-induced *** paper describes the measurement of the efficiencies of quark/gluon taggers developed within the ATLAS Collaboration,using √s=13 TeV proton–proton collision data with an integrated luminosity of 140 fb^(-1) collected by the ATLAS *** taggers with high performances in rejecting jets from gluon over jets from quarks are studied:one tagger is based on requirements on the number of inner-detector tracks associated with the jet,and the other combines several jet substructure observables using a boosted decision tree.A method is established to determine the quark/gluon fraction in data,by using quark/gluon-enriched subsamples defined by the jet *** in tagging efficiency between data and simulation are provided for jets with transverse momentum between 500 GeV and 2 TeV and for multiple tagger working points.

关键词： ATLAS JET QuARK GLuON TAGGING