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Geoscience Frontiers 2015年第4期6卷 571-577页

作者： Xiaohu Li Jiabiao Li Xing Yu Chunsheng Wang fred jourdan Key Laboratory of Submarine Geoscience State Oceanic Administration Second Institution of Oceanography State Oceanic Administration Key Laboratory of Marine Ecosystem and Biogeochemistry State Oceanic Administration Western Australian Argon Isotope Facility Department of Applied Geology and Jd L Centre Curtin University

A chronological study of seamount rocks in the South China Sea basin provides a great opportunity to understand the expansion and evolution history of the sea basin. In this paper, we analyzed the ^40Ar/^39Ar age of trachytic samples collected from the Shuangfeng seamounts in the northwestern sub-basin of the South China Sea. The two samples yielded plateau ages of 23.80 ± 0.18 and 23.29 ± 0.22 Ma, respectively, which indicate magmatic activity in late Oligocene which helpful constraints the expansion time of the northwest sub-basin. Previous studies suggested that the northwestern sub-basin and southwestern sub-basin have experienced a relatively consistent expansion in the NW-SE direction followed by a late expansion of the eastern sub-basin. We concluded that the expansion of the northwestern sub-basin began prior to ca. 24 Ma, which also implicated magmatic events of a late or stop expansion of the northwestern sub-basin combined with our results of^40Ar/^39Ar age data and previous geophysical data.

关键词： ^40Ar/^39Ar datingSeamount trachyteNorthwest sub-basinExpansion historySouth China Sea

The Ogaden Dyke Swarm: Red Sea Rifting Continued in the Somalia Plate?

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Acta Geologica Sinica(English Edition) 2016年第S1期90卷 56-58页

作者： Daniel MèGE Peter G.PURCELL Antoine BéZOS fred jourdan Space Research Centre Polish Academy of Sciences Planetology and Geodynamics Laboratory UMR CNRS 6112 University of Nantes P & R Geological Consultants Western Australia Argon Isotope Facility Curtin University

Opening of the Red Sea started while the core of the lavas of the Ethiopian Large Igneous Province（LIP）was being erupted at;0 Ma（Hughes et al.,1991）and has continued to the *** the southern Red Sea,oceanic

关键词： Red Sea Rifting Continued in the Somalia Plate The Ogaden Dyke Swarm

When will it end? Long-lived intracontinental reactivation in central Australia

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Geoscience Frontiers 2019年第1期10卷 149-164页

作者： Raphael Quentin de Gromard Christopher L.Kirkland Heather M.Howard Michael T.D.Wingate fred jourdan Brent I.A.Mc Innes Martin Danisik Noreen J.Evans Bradley J.McDonald R.Hugh Smithies Geological Survey of Western Australia Department of Mines Industry Regulation and Safety School of Earth and Planetary Science/John de Laeter Centre/TIGeR Curtin University

The post-Mesoproterozoic tectonometamorphic history of the Musgrave Province, central Australia, has previously been solely attributed to intracontinental compressional deformation during the 580 -520 Ma Petermann Orogeny. However, our new structurally controlled multi-mineral geochronology results,from two north-trending transects, indicate protracted reactivation of the Australian continental interior over ca. 715 million years. The earliest events are identified in the hinterland of the orogen along the western transect. The first tectonothermal event, at ca. 715 Ma, is indicated by40 Ar/39 Ar muscovite and U e Pb titanite ages. Another previously unrecognised tectonometamorphic event is dated at ca. 630 Ma by Ue Pb analyses of metamorphic zircon rims. This event was followed by continuous cooling and exhumation of the hinterland and core of the orogen along numerous faults, including the Woodroffe Thrust,from ca. 625 Ma to 565 Ma as indicated by muscovite, biotite, and hornblende40 Ar/39 Ar cooling ages. We therefore propose that the Petermann Orogeny commenced as early as ca. 630 Ma. Along the eastern transect,40 Ar/39 Ar muscovite and zircon(Ue Th)/He data indicate exhumation of the foreland fold and thrust system to shallow crustal levels between ca. 550 Ma and 520 Ma, while the core of the orogen was undergoing exhumation to mid-crustal levels and cooling below 600-660℃. Subsequent cooling to 150 -220℃ of the core of the orogen occurred between ca. 480 Ma and 400 Ma(zircon [Ue Th]/He data)during reactivation of the Woodroffe Thrust, coincident with the 450 -300 Ma Alice Springs *** of the footwall of the Woodroffe Thrust to shallow depths occurred at ca. 200 Ma. More recent tectonic activity is also evident as on the 21 May, 2016(Sydney date), a magnitude 6.1 earthquake occurred, and the resolved focal mechanism indicates that compressive stress and exhumation along the Woodroffe Thrust is continuing to the present day. Overall, these results

关键词： Intracontinental deformation Thermochronology Petermann orogen Musgrave Province Plate tectonics Cratonization

Evaluating the Precise (39)Ar/(40)Ar Dating of Multiple Mineral Potassic Phases in Ultra-alkaline Rocks: Applications to Mantle Systematics

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Acta Geologica Sinica(English Edition) 2020年第S1期94卷 50-50页

作者： Simon A.WILDE fred jourdan Lynda FREWER Monika A.KUSIAK Department of Applied Geology Western Australian School of MinesCurtin UniversityPO Box U1987PerthWestern Australia6845Australia Diatech Pty Ltd 6 Sandra PlaceWelshpoolWestern Australia 6106Australia Swedish Museum of Natural History 40 FrescativagenStockholm 11418Sweden Institute of Geophysics Polish Academy of Sciences64 Księcia Janusza Str.01-452WarsawPoland

A suite of potassium-bearing minerals from the Walgidee Hills lamproite intrusion in the Kimberley region of Western Australia was selected for 39Ar/40Ar dating. These included wadeite, jeppeite, priderite, potassium richterite, and phlogopite. All recorded excellent plateau ages, with the mean age of the combined data set being 17.3±0.3 Ma. Phlogopite recorded the largest uncertainty, whereas, of the other minerals,wadeite gave the best precision. Although rare to absent in common magmatic rocks, these minerals are widely distributed in alkaline complexes and in lamproite, kimberlite and orangeite intrusions. The results indicate this suite of minerals is excellent for 39Ar/40Ar dating and that they can be used singly or in combination to obtain the precise magmatic crystallization ages of ultra-alkaline rocks. Because of the stability of potassium richterite at mantle depths, 39Ar/40Ar dating of MARID(micaamphibole-rutile-ilmenite-diopside) xenoliths should be a more widely-applied technique to investigating mantle geodynamics.

关键词： 39Ar/40Ar dating potassium-bearing minerals ultra-alkaline rocks MARID xenoliths

长江砾石层的沉积学、年代学与物源示踪：对中国东南部晚新生代构造、气候与河流演化的指示（英文）

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长江砾石层的沉积学、年代学与物源示踪：对中国东南部晚新生代构...

2019年中国地球科学联合学术年会

作者：王平郑洪波王永栋魏晓椿唐领余 fred jourdan 陈军黄湘通南京师范大学地理科学学院云南大学地球系统科学研究院中科院南京地质古生物研究所浙江大学地球科学学院澳大利亚科廷大学同济大学海洋与地球科学学院

The evolution of the longest river in Asia,Yangtze,provides a spectacular example to understand the Late Cenozoic interaction between tectonic,climate and surface *** oldest Lower Yangtze deposits,characterized by thi... 详细信息

关键词：新生代构造沉积学物源示踪中国东南部砾石层

长江砾石层的沉积学、年代学和物源示踪——对中国东部晚新生代构造和气候演化的指示

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长江砾石层的沉积学、年代学和物源示踪——对中国东部晚新生代构...

2017中国地球科学联合学术年会

作者：王平郑洪波 Peter Clift 王永栋 fred jourdan 唐领余徐颖风魏晓椿黄湘通南京师范大学地理科学学院云南大学资源环境和地球科学学院 Department of Geology and Geophysics Louisiana State University 中国科学院南京地质古生物研究所 Department of Applied Geology and John de Laeter Centre Curtin University 南京大学地球科学与工程学院同济大学海洋与地球科学学院

长江自西向东贯穿三级地貌单元,其演化历史为研究晚新生代构造、气候和地表过程相互作用提供了经典案例。近期在长江下游发现的一套最大沉积年龄不小于23Ma的,由砂、砾石组成的地层,即长江砾石层,限定了长江的年龄不晚于中新世。显然,... 详细信息

长江自西向东贯穿三级地貌单元,其演化历史为研究晚新生代构造、气候和地表过程相互作用提供了经典案例。近期在长江下游发现的一套最大沉积年龄不小于23Ma的,由砂、砾石组成的地层,即长江砾石层,限定了长江的年龄不晚于中新世。显然,长江贯通与新生代青藏高原隆升存在重要的联系(Zheng et al.,2013)。然而,长江贯通和中国东部晚新生代构造、气候的关系仍然缺少系统研究。

关键词：新生代构造砾石层气候演化年代学物源示踪沉积学

应用大陆板内孪生火山探索富集地幔中再循环洋壳组分的小尺度不均一性

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应用大陆板内孪生火山探索富集地幔中再循环洋壳组分的小尺度不均...

2022年中国地球科学联合学术年会

作者：孙明道徐义刚 Esteban Gazel 李杰张万峰张乐贺鹏丽肖媛媛 fred jourdan Simon A.Wilde

前人对中国东部新生代玄武岩的研究揭示出地幔源区中存在有再循环洋壳组分,但如夏威夷、冰岛等地发现的一截完整(上/下)洋壳发生再循环的例子尚未有所报导。由于结晶分异及同化混染作用,也很少有大陆板内火山记录到幔源原始岩浆,制约了... 详细信息

前人对中国东部新生代玄武岩的研究揭示出地幔源区中存在有再循环洋壳组分,但如夏威夷、冰岛等地发现的一截完整(上/下)洋壳发生再循环的例子尚未有所报导。由于结晶分异及同化混染作用,也很少有大陆板内火山记录到幔源原始岩浆,制约了研究地幔源区组成。

关键词：汪清河结晶分异不均一性碱玄岩

华夏板块东南部中——新生代构造热事件的热年代学记录

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华夏板块东南部中——新生代构造热事件的热年代学记录

2016中国地球科学联合学术年会

作者：陶霓 Zheng-Xiang Li Martin Dani?ík Noreen J.Evans Geoffrey E.Batt 李武显厐崇进徐义刚 fred jourdan 长安大学地球科学与资源学院澳大利亚科廷大学澳大利亚西澳大利亚大学中国科学院广州地球化学研究所桂林理工大学

以磷灰石、锆石(U-Th)/He分析为代表的低温热年代学已成为揭示区域岩石冷却历史、恢复构造抬升过程的重要方法。重建赣南-粤北地区中生代砂岩地层和花岗岩体的中—新生代剥露、冷却历史,对于进一步探索华夏板块东南部中—新生代的构造... 详细信息

以磷灰石、锆石(U-Th)/He分析为代表的低温热年代学已成为揭示区域岩石冷却历史、恢复构造抬升过程的重要方法。重建赣南-粤北地区中生代砂岩地层和花岗岩体的中—新生代剥露、冷却历史,对于进一步探索华夏板块东南部中—新生代的构造热演化过程具有重要意义。大席地区区域上位于华夏板块东南部,保存有较为完好的晚三叠纪到早侏罗纪砂岩地层,并内分布有三叠纪-侏罗纪花岗岩(Tao,2014)。沉积学和古地理记录表明,大席地区在中-新生代经历过较

关键词：热年代学磷灰石三叠纪冷却历史砂岩地层

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汪清河苦橄岩的时代及岩石成因

汪清河苦橄岩的时代及岩石成因

中国矿物岩石地球化学学会第17届学术年会

作者：孙明道张乐贺鹏丽洪路兵夏小平李杰贺怀宇杨列坤 fred jourdan Simon A.Wilde 任钟元徐义刚中国科学院广州地球化学研究所同位素地球化学国家重点实验室中国科学院地质与地球物理研究所岩石圈演化国家重点实验室澳大利亚科廷大学行星与地球科学系

＜正＞中国东部广泛分布的新生代玄武岩是研究东亚大地幔楔和西太平洋俯冲再循环的理想对象,但对应的苦橄岩一直未被发现,制约了恢复原始岩浆成分和识别地幔源区中的再循环组分。作者首次在中国东北延边地区发现了新生代苦橄岩,将其命... 详细信息

＜正＞中国东部广泛分布的新生代玄武岩是研究东亚大地幔楔和西太平洋俯冲再循环的理想对象,但对应的苦橄岩一直未被发现,制约了恢复原始岩浆成分和识别地幔源区中的再循环组分。作者首次在中国东北延边地区发现了新生代苦橄岩,将其命名为汪清河苦橄岩。汪清河苦橄岩产自中国东北延边自治州汪清县的大汪清河火山,构造上位于华北克拉通-中亚造山带东段-古太平洋造山带三者相接的地区。大汪清河火山发育于北东向的汪清河断

关键词：苦橄岩年代学岩石成因