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Combining Thermochronology and Geochronology to Constrains Orogenic Processes in the Alps and Tibet

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Acta Geologica Sinica(English Edition) 2024年第S1期98卷 41-43页

作者： Philippe Hervéleloup Antoine MERCIER GE Chenglong Laboratoire de Géologie de Lyon:Terre Planètes et EnvironnementCNRSUniversitéClaude Bernard Lyon 1ENSLUJM2 rue Raphaël Dubois69622 VilleurbanneFrance Key Laboratory of Deep-Earth Dynamics of Ministry of Natural Resources Institute of GeologyChinese Academy of Geological SciencesBeijing 100037China

Deciphering the kinematics of deformation is key to understand the crustal *** the last decades several techniques have been developed to help constraining the timing of *** one side geochronology techniques allow the dating of a wider range of minerals with higher spatial *** the other side thermochronology,with the help of numerical simulations(PeCube,QTQt…),help to constrain the rock exhumation history that is often linked to the vertical component of *** both cases the deformation timing can accurately be discussed only together with a serious structural analysis.

关键词： timing of crustal deformation eochronology thermochronology Alpine external crystalline range Mont-Blanc Aiguilles Rouges

Organic matter produced by algae and cyanobacteria: Quantitative and qualitative characterization

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Journal of Environmental Sciences 2013年第6期25卷 1089-1097页

作者： Maud leloup Rudy Nicolau Virginie Pallier Claude Yprmian Geneviève Feuillade-Cathalifaud University of Limoges EA 4330Groupement de Recherche EauSolEnvironnement(GRESE)ENSILParc d'ESTER Technople16 rue AtlantisF-87068 Limoges CedexFrance UMR 7245 MCAM MNHN-CNRS Equipe CyanobactériesCyanotoxines et EnvironnementMuséum National d'Histoire NaturelleCase 3912 rue BuffonF-75231 Paris Cedex 05France

This work aims at characterizing organic matter produced by an alga Euglena gracil~ and a cyanobacteria Microcystis aeruginosa and assessing the evolution of its characteristics during growth. A culture medium was optimized. The species growth phases were monitored using both visible spectrophotometry and flow cytometry cell counting. Organic matter fractionation according to hydrophobicity and specific UV absorbance （SUVA） index were used to specifically characterize the produced algal organic matter （AOM）. The AOM characteristics were both growth phase and species dependent. However, a similar evolution was observed. The hydrophilic fraction （HPI） was the major fraction whatever the growth phases and was almost the only one produced during lag and exponential phases. It represented around 75% of AOM during exponential phase and then decreased when the stationary phase appeared. It represented 46% and 60% of the AOM during late decline phase for the cyanobacteria and the alga respectively. The hydrophobic （HPO） and transphilic （TPH） fractions started to appear from the beginning of the stationary phase with more hydrophobic compounds coming from intracellular organic material of dying cells. HPO and TPH percentages still increased during the decline phase probably because of two additional processes： photo-dissolution and leaching of particulate organic matter from cells fragments. A comparison of AOM during late decline phase and natural organic matter （NOM） from Glane River （France） underlined that AOM was more fiydrophilic and presented a lower SUVA for each fractions than NOM. However, the difference between NOM and AOM hydrophobicity narrowed during decline phase.

关键词： algae cyanobacteria organic matter XAD fractionation SUVA flow cytometry

Ductile deformation within Upper Himalaya Crystalline Sequence and geological implications,in Nyalam area,Southern Tibet

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Chinese Science Bulletin 2012年第26期57卷 3469-3481页

作者： LIU XiaoBing LIU XiaoHan leloup P.H. MAHEO G. PAQUETTE J.L. ZHANG XinGang ZHOU XueJun Key Laboratory of Continental Collision and Plateau UpliftInstitute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100085China Laboratoire des sciences de la terre de Lyon TerrePlanktesEnvironementCNRS UMR 5276Universitd Lyonl-ENS LyonVilleurbanne69622France Graduate University of Chinese Academy of Scienees Beijing 100049China Laboratoire Magmas et Volcans CNRS UMR 6524Universite Blaise PascalClermont-Ferrand63038France

The South Tibet Detachment System(STDS) is a flat normal fault that separates the Upper Himalaya Crystalline Sequence(UHCS) below from the Tethyan Sedimentary Sequence(TSS) *** of deformations related to the STDS is critical to understand the mechanism and evolution of the Himalaya collision *** Nyalam detachment(ND)(～86°E) locates in the middle portion of STDS(81°-89°E).Dating of deformed leucocratic dykes that are most probably syntectonic at different depth beneath the ND,allow us to constrain the timing of deformation.(1) Dyke T11N37 located ～3500 m structurally below the ND emplaced at 27.4± 0.2 Ma;(2) Dyke T11N32 located ～1400 m structurally below the ND emplaced at 22.0±0.3 Ma;(3) T11N25 located within the top to the north STD shear zone,～150 m structurally below the ND,emplaced at 17.1±0.2 *** ND footwall cooling history and T11N25 deformation temperature,we indicate a probable onset of top to the north deformation at ～16 Ma at this *** results show an upward younging of the probable timing of onset of the deformation at different structural distance below the *** then propose a new model for deformation migration below the ND with deformation starting by pure shear deformation at depth prior to ～27.5 Ma that migrates upward at a rate of ～ 0.3 mm/a until ～18 Ma when deformation switches to top to the north shearing in the South Tibet Detachment shear zone(STDsz).As deformation on the ND stops at 14-13 Ma this would imply that significant top to the North motion would be limited to less than 5 Ma and would jeopardize the importance of lower channel flow.

关键词：喜马拉雅碰撞带塑性变形聂拉木地区西藏南部地质意义序列结晶藏南拆离系

LARGE-SCALE STRIKE SLIP FAULT: THE MAJOR STRUCTURE OF INTRACONTINENTAL DEFORMATION AFTER COLLISION

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Chinese Science Bulletin 1990年第4期35卷 304-309页

作者：钟大赉 P. TAPPONNIER 吴海威张连生嵇少丞钟嘉猷刘小汉 U. SCHAERER R. LACASSIU P. leloup Institute of Geology Academia Sinica Beijing 100011 PRC Institule of Geophysics.C.N.R.S.France

Intracontinental deformation is one of the most interesting problems in tectonics. But so far little attention has been paid to rock deformation, metamorphism and magmatism related with large-scale displacement and rotation of these blocks. In this note, we take the Ailaoshan-Red River fault (ARF)zone in western Yunnan as an example and discuss the kinematics and dynamics of the fault With its neighbouring blocks in the Tertiary.

关键词： intracontinental deformation large-scale strike slip Ailaoshan-Red River fault.

藏南聂拉木高喜马拉雅结晶岩系上部韧性变形年代学及地质意义

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科学通报 2012年第17期57卷 1562-1574页

作者：刘小兵刘小汉 leloup P.H. MAHEO G. PAQUETTE J.L. 张鑫刚周学君中国科学院青藏高原研究所大陆碰撞与高原隆升重点实验室 Laboratoire des sciences de la terre de Lyon TerrePlanètesEnvironementCNRS UMR5276UniversitéLyon1-ENS LyonVilleurbanne69622France 中国科学院研究生院 Laboratoire Magmas et Volcans CNRS UMR6524UniversitéBlaise PascalClermont-Ferrand63038France

藏南拆离断层系(STDS)为低角度正断层,其上盘为特提斯喜马拉雅沉积岩系,下盘为高喜马拉雅结晶岩系.厘定与STDS有关的变形时限,对深入理解喜马拉雅造山带的变形机制与构造演化具重要意义.聂拉木拆离断层(ND)(86°E)位于STDS中段(81°～89... 详细信息

藏南拆离断层系(STDS)为低角度正断层,其上盘为特提斯喜马拉雅沉积岩系,下盘为高喜马拉雅结晶岩系.厘定与STDS有关的变形时限,对深入理解喜马拉雅造山带的变形机制与构造演化具重要意义.聂拉木拆离断层(ND)(86°E)位于STDS中段(81°～89°E),ND下盘不同构造位置(即采样点位与ND的构造距离)的变形花岗质岩脉具有一定程度的同构造特征,锆石-独居石U-Th/Pb年龄可以不同程度地厘定变形时间:(1)样品T11N37(ND下盘约3500m构造位置)的侵位年龄为27.4±0.2Ma;(2)样品T11N32(ND下盘约1400m构造位置)的侵位年龄为22.0±0.3Ma;(3)样品T11N25(ND下盘约150m构造位置)的侵位年龄为17.1±0.2Ma,结合ND下盘冷却历史和T11N25变形温度,认为其变形最晚开始时间约为16Ma.年代学结果表明,变形作用的最晚开始时间由下盘往拆离面逐渐变年轻.因此提出ND下盘变形迁移的新模式,即ND下盘在约27.5Ma之前开始纯剪切为主的变形作用,随后变形以约0.3mm/a的速率向拆离面移动,并于约18Ma在藏南拆离断层剪切带(STDsz)底部转化为简单剪切变形为主.由于ND变形结束于14～13Ma,这意味着北向剪切作用的持续时限小于约5Ma,对下地壳流动模型提出新的挑战.

关键词：高喜马拉雅结晶岩系上部(UHCS) 藏南拆离断层剪切带(STDsz) 聂拉木拆离断层(ND) 锆石-独居石U-Th/Pb年龄变形迁移

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大型走滑断层——碰撞后陆内变形的重要形式

科学通报 1989年第7期34卷 526-529页

作者：钟大赉 P.Tapponnier 吴海威张连生嵇少丞钟嘉猷刘小汉 U.Schaerer R.Lacassin P.leloup 中国科学院地质研究所法国科研中心地球物理研究所

研究陆内变形是当代大地构造学家最感兴趣的问题之一。然而,人们对陆内地块间的大规模滑移和转动而引起的岩石变形,变质和岩浆活动研究得非常不够。本文以云南西部哀牢山-红河断裂为例,说明陆内大规模韧性变形带的几何学、运动学,以及... 详细信息

研究陆内变形是当代大地构造学家最感兴趣的问题之一。然而,人们对陆内地块间的大规模滑移和转动而引起的岩石变形,变质和岩浆活动研究得非常不够。本文以云南西部哀牢山-红河断裂为例,说明陆内大规模韧性变形带的几何学、运动学,以及相关的地质演化过程。

关键词：陆内变形走滑断层碰撞断裂

以喀喇昆仑断裂为例研究大比例尺陆内走滑断裂（英文）

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以喀喇昆仑断裂为例研究大比例尺陆内走滑断裂（英文）

藏滇新特提斯洋于始新世关闭并持续隆升的证据——云南剑川盆地晚始新世双河组生物组合与古高程重建

2015中国地球科学联合学术年会

作者：马晓丽李海兵 Philippe herve leloup 中国地质科学院地质研究所 Universite Lyon

How large-scale,active strike-slip fault systems are defined can sometimes be ambiguous,especially when viewed at different timescales(geodetic vs longer term measurements).Does every kilometer of the fault system need to be visible in the morphology(offset geomorphic features,fault trace,etc)to be considered as currently active?Does every segment of the fault need to have a unique and consistent kinematics along the

关键词：大比例尺喀喇昆仑断裂

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藏滇新特提斯洋于始新世关闭并持续隆升的证据——云南剑川盆地晚...

老龄小鼠模型内皮细胞衰老导致射血分数保留的心力衰竭

中国古生物学会第十二次全国会员代表大会暨第29届学术年会

作者：郑国栋徐亚东张克信吴旌王国灿曹凯 Philippe Herve leloup 中国地质大学(武汉) Laboratoire de Géologie de Lyon:Terre Planètes et EnvironnementUniversité Claude Bernard

青藏高原东南缘一直被认为是藏滇新特提斯洋关闭及其随后高原隆升造成物质逃逸的主要场所,其沉积、构造和生物演化事件记录了新特提斯洋关闭和高原隆升的过程。剑川盆地是青藏高原东南缘与藏滇新特提斯洋关闭相关的弧后前陆盆地。双河... 详细信息

青藏高原东南缘一直被认为是藏滇新特提斯洋关闭及其随后高原隆升造成物质逃逸的主要场所,其沉积、构造和生物演化事件记录了新特提斯洋关闭和高原隆升的过程。剑川盆地是青藏高原东南缘与藏滇新特提斯洋关闭相关的弧后前陆盆地。双河组是剑川盆地内的主要沉积地层,属该弧后前陆盆地充填序列的中上部。本项目组在双河组进行了双壳类、孢粉、介形类、稳定同位素的综合研究,得出以下结论:1.发现了双壳类有4属8种,分别为Unio,Acuticosta,Cuneopsis和Anodonta 4属,Acuticosta huoerguosica,Acuticosta subimmutata,Acuticosta ***,Acuticosta ***,Acuticosta ***,Unio ***,Cuneopsis ***和Anodonta *** 8种,均属于古异齿目珠蚌科;2.结合双河组的侵入脉体的年龄(36.2Ma)和介形虫化石组合带(Cypridopsis-Heterocypris组合带和Austrocypris levis-Homoeucypris jingtanensis-Cyprinotus jiangsuensis-Darwinula组合带),可以确定双河组的地质时代为晚始新世。3.通过对双河组孢粉化石系统分析获得4个孢粉组合(Polypodiaceaesporites-CryptomeriapollenitesChenopodipollis组合,Quercoidites-Ulmipollenites组合,Juglanspollenites-PinuspollenitesCompositoipollenites组合和Lygodiumsporites-Cedripites-Ephedripites组合),揭示出剑川盆地晚始新世为热带—亚热带落叶阔叶林—落叶针阔叶混交林的面貌,古气候经历了温暖湿润—温凉偏干的转变,大气平均年均温(MAAT)为16.8-21.7℃,平均值为19.2±3.5℃,比当地现代MAAT高6℃,共存分析获得双河组古高程为1.95±0.65km(asl)。4.通过对双河组碳酸盐岩样品进行系统的氧同位素分析,获得沉积时期双河组水体中的氧同位素值δ18Omw(VSMOW)为-9.5±1.1‰(2σ),基于Hoke et al.(2014)总结的青藏高原东南缘古近纪古高程模型计算得到双河组古高程为2.9±0.6km(asl)。通过对孢粉组合的古植被重建、植物类群共存分析法、碳酸盐岩氧同位素高程计等定量方法,揭示出研究区在～36Ma之前已经开始阶段性隆升,且在～36Ma时其古高程接近现代海拔高度,青藏高原在始新世晚期的东高西低的地貌格局逐步转变为西高东低,并影响了淡水双壳类从青藏高原向长江和黄河中下游扩散。

关键词：双河组弧后前陆盆地生物组合晚始新世云南剑川

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中华高血压杂志 2017年第9期25卷 859-859页

作者：刘莉叶鹏 Gevaert AB Shakeri H leloup AJ Van Hove CE De Meyer GRY Vrints CJ Lemmens K Van Craenenbroeck EM

由于全球老龄化,射血分数保留的心力衰竭（heart failure with preserved ejection fraction,HFpEF）发生率持续上升。虽然HFpEF的病理生理机制仍然不完全清楚,但通常认为内皮炎症发挥了核心作用。细胞衰老是一种与老化和炎症有关的细... 详细信息

由于全球老龄化,射血分数保留的心力衰竭（heart failure with preserved ejection fraction,HFpEF）发生率持续上升。虽然HFpEF的病理生理机制仍然不完全清楚,但通常认为内皮炎症发挥了核心作用。细胞衰老是一种与老化和炎症有关的细胞生长停滞过程。Gevaert等使用加速老化的小鼠（senescence-accelerated mice，SAM）模型探究细胞衰老在HFpEF发生发展中的作用。

关键词：细胞衰老射血分数心力衰竭老龄小鼠全球老龄化病理生理机制 ejection 内皮加速老化 preserved