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Magmatic-tectonic response of the South china Craton to the Paleo-Pacific subduction during the Triassic:a new viewpoint based on Well NK-1

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Journal of Oceanology and Limnology 2024年第1期42卷 58-89页

作者： Chan wang Hao LIU Gang LI Zhen SUN Tingting GONG Li MIAO Xiaowei ZHU Yunying ZHANG Weihai XU Wen YAN Key Laboratory of Ocean and Marginal Sea Geology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Southern Marine Science and Engineering Guangdong Laboratory(guangzhou) Guangzhou 511458China Key Laboratory of Tectonic Controlled Mineralization and Oil Reservoir of Ministry of Natural Resources Chengdu University of TechnologyChengdu 610059China School of Earth Sciences and Resources China University of Geosciences(Beijing)Beijing 100083China College of Earth Science Chengdu University of TechnologyChengdu 610059China University of Chinese Academy of Sciences Beijing 100049China

The Nansha Block(NB)is one of the blocks separated from the southern margin of the South china Craton(SCC)by the western Pacific subduction,which contains rich information of geodynamic and tectonic *** reveal the essence of western Paleo-Pacific subduction during the Triassic period,Well NK-1 in this block was selected for petrographic study,and published research data from other cooperative teams were compared.A double-cycle pattern of basic to neutral magmatic volcanism was established,and 36 lithological rhythmic layers and representative cryptoexplosive breccia facies and welded tuff bands were *** with a reanalysis of published geochronological data,geochemical elements,and isotope geochemistry,we found that the rock assemblages could be divided into an intermediate-acid dacite(DA)series(SiO_(2.>65%)and basaltic(BA)series(Co2.8.6±3.2.–(2.7.9±3.5)Ma).BA exhibits obvious calc-alkaline island-arc magmatic properties:(^(87)Sr/^(86)Sr)_i ratio ranging 0.70377–0.71118(average:0.70645),^(147)Sm/^(144)Nd ratio ranging 0.119–0.193(average:0.168),and chondrite-normalized rare earth element(REE)curves being flat,while DA exhibits remarkable characteristics of subducted island-arc andesitic magma:(^(87)Sr/^(86)Sr)_i ratio(0.70939–0.7112.;average:0.71035),εNd(t)value(-6.2.-4.8;average:-5.6)andε_(Hf)(t)value(-2.9–-1.7,average:-2.2.show obvious crust-mantle mixing *** and DA reveal typical characteristics of island-arc magma systems and typeⅡenriched mantle(EM-Ⅱ)*** magma was likely resulted from the process whereby the continental crust frontal accretionary wedge was driven by the Paleo-Pacific slab subduction into the deep and began to melt,resulting in a large amount of melt(fluid)joined the asthenosphere on the side of the continental *** contrast,DA magma was likely resulted from the process whereby the plate front was forced to bend with increasing subducti

关键词： Paleo-Pacific tectonic domain tectonic evolution rift volcanic rock Nansha Block South china Craton

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A New Martian Meteorite from Antarctica:Grove Mountains(GRV) 02.090

A New Martian Meteorite from Antarctica:Grove Mountains(GRV)...

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中国科学院地质与地球物理研究所2.04学术年会

作者： MIAO Bingkui~(1,2.,OUYANG Ziyuan~3,wang Daode~4,JU Yitai~5, wang Guiqin~4 and LIN Yangting~1 1 {2. of Geology and Geophysics,Chinese Academy of Sciences,Beijing 10002. 2.Department of Resources and Environmental Engineering,Guilin {2. of Technology, Guilin,Guangxi 541004 3 National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012.4 guangzhou {2. of geochemistry,Chinese Academy of Sciences, guangzhou,Guangdong 510640 5 The Second Bureau of china Exploration & Engineering Bureau,Fuzhou,Fujian 350001

Reported in this paper are the petrology and mineral chemistry of GRV 02.090,the second Martian meteorite collected from the Grove Mountains,*** meteorite,with a mass of 7.54 g,is completely covered by a black and glazy fusion *** has two distinct textural *** interstitial region is composed of euhedral grains of olivine, pigeonite,and anhedrai interstitial maskelynite,with minor chromite,augite,phosphates and *** poikilitic region consists of three clasts of pyroxenes,each of which has a pigeonite core and an augite rim.A few grains of subhedral to rounded olivine and euhedral chromite are enclosed in the pyroxene *** 02.090 is classified as a new member of lherzolitic shergottites based on the modal composition and mineral *** work will shed light on the composition of Martian crust and magmatism on the Mars.

关键词： meteorite lherzolite shergottite achondrite Mars Antarctica

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The Willouran basic province of South Australia:Its relation to the Guibei large igneous province in South china and the breakup of Rodinia

The Willouran basic province of South Australia:Its relation...

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中国科学院地质与地球物理研究所第十届(2.10年度)学术年会

作者： Xuan-Ce wang~(a,b,c,*),Xian-Hua Li~a,Zheng-Xiang Li~b,Ying Liu~d,Yue-Heng Yang~a a State Key Laboratory of Lithospheric Evolution,institute of Geology and Geophysics,Chinese Academy of Sciences,P.O.Box 982.,Beijing 10002.,{2. b The institute for Geoscience Research,Department of Applied Geology,Curtin University,GPO Box U1987,Perth,WA 6845,Australia c School of Earth and Environment,the University of Western Australia,Crawley,WA 6009,Australia d Key Laboratory of Isotope Geochronology and geochemistry,guangzhou institute of geochemistry,Chinese Academy of Sciences,guangzhou 510640,{2.

The Willouran Basic Province in South-Central Australia and the Guibei large igneous province(LIP)in the South china Block are two of the most prominent Neoproterozoic LIPs related to the breakup of the supercontinent *** Willouran Basic Province is dominated by tholeiitic mafic dykes(the Gairdner dykes),flood basalts(the Wooltana basalts),and mafic *** basaltic suites across a distance of more than f 000 km have similar immobile major element compositions,uniform tholeiitic OIB-type trace element distribution patterns,and identical Hf-Nd isotopic *** analyses from this study imply that their generation may have involved both depleted and enriched mantle sources,similar to that of the Guibei *** age distributions of the two LIPs are also comparable,peaking at ca.82. *** simultaneous flare-up of mafic magmatism in the two continents,including high-temperature lavas found in the South china Block,coincides with the starting up of widespread continental rifting in *** thus speculate that the two LIPs could have been parts of a once contiguous LIP,which was dismembered during the breakup of *** work thus provides additional support for the proposed South china-Australia connection in Rodinia.

关键词： Neoproterozoic Willouran Basic Province Wooltana basalts Large igneous province Mantle plume Australia South china Rodinia

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Mixing states and secondary formation processes of organic nitrogen-containing single particles in guangzhou,china

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Journal of Environmental Sciences 2024年第4期138卷 62-73页

作者： Lijun Yun Chunlei Cheng Suxia Yang Zaihua wang Mei Li Qi En Zhong LiyuanMao Sulin Liu Xiaoya Cheng Duanying Chen Fan Yang Zhen Zhou institute of Mass Spectrometry and Atmospheric Environment Guangdong Provincial Engineering Research Center for on-line source apportionment system of air pollutionJinan UniversityGuangzhou 510632China Guangdong-Hongkong-Macao Joint Laboratory of Collaborative Innovation for Environmental Quality Guangzhou 510632China State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy ScienceXi’an 710061China institute for Environment and Climate Research Jinan UniversityGuangzhou 510632China Guangdong Academy of Sciences Institute of Resources Utilization and Rare Earth DevelopmentGuangzhou 510650China Environmental Monitoring Station of Pudong New District Shanghai 201200China

Organic nitrogen(ON)compounds play a significant role in the light absorption of brown carbon and the formation of organic aerosols,however,the mixing state,secondary formation processes,and influencing factors of ON compounds are still *** paper reports on the mixing state of ON-containing particles based on measurements obtained using a highperformance single particle aerosol mass spectrometer in January 2.2. in *** ON-containing particles accounted for 2.% of the total detected single particles,and the particle count and number fraction of the ON-containing particles were two times higher at night than during the *** prominent increase in the content of ON-containing particles with the enhancement of NO_xmainly occurred at night,and accompanied by high relative humidity and nitrate,which were associated with heterogeneous reactions between organics and gaseous NO_(x)and/or NO_(3)*** synchronous decreases in ON-containing particles and the mass absorption coefficient of water-soluble extracts at 365 nm in the afternoon may be associated with photo-bleaching of the ON species in the *** addition,the positive matrix factorization analysis found five factors dominated the formation processes of ON particles,and the nitrate factor(33%)mainly contributed to the production of ON particles at *** results of this study provide unique insights into the mixing states and secondary formation processes of the ON-containing particles.

关键词： Organic nitrogen compounds Single particles Mixing state Secondary formation Nighttime chemistry

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扬子地块北缘毕机沟岩体下部带堆晶岩结构定量化分析:对层状岩体冷却早期粒间熔体排出机制的约束

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地质学报 2024年第7期98卷 2110-2127页

作者：王洁李中州王梦玺长安大学地球科学与资源学院陕西西安710054 中国科学院广州地球化学研究所中国科学院矿物学与成矿学重点实验室广东广州510640 中国科学院大学地球与行星科学学院北京100049

层状岩体冷却中—晚期晶粥中粒间熔体的排出被认为与铁钛氧化物的大量结晶关系密切,但在岩体冷却早期铁钛氧化物尚未大量结晶时,粒间熔体能否被有效排出、以及如何排出还需要深入探究。扬子地块北缘毕机沟岩体是我国目前发现的规模最大... 详细信息

层状岩体冷却中—晚期晶粥中粒间熔体的排出被认为与铁钛氧化物的大量结晶关系密切,但在岩体冷却早期铁钛氧化物尚未大量结晶时,粒间熔体能否被有效排出、以及如何排出还需要深入探究。扬子地块北缘毕机沟岩体是我国目前发现的规模最大、分异程度较高且赋存有钒钛磁铁矿矿床的层状岩体。岩体下部带、中部带和上部带分别由斜长橄榄岩、辉长岩和闪长岩组成。本研究以下部斜长橄榄岩相带为对象,通过对斜长石和单斜辉石进行晶体粒度分布(CSDs)和空间展布形式(SDPs)分析,探讨层状岩体冷却早期粒间熔体的排出方式及其控制因素。模拟计算结果表明,样品中封闭粒间熔体比例(FTL)为9%~13%,暗示岩体冷却早期粒间熔体被有效排出。单斜辉石和斜长石的CSD曲线斜率主要为3.36~2.45和2.99~1.87,截距分别为0.45~3.35和1.06~2.83,均具有斜率一致而截距变化较大的特征,与机械压实的CSD曲线一致。单斜辉石和斜长石在SDP图解上均显示负相关关系,也与机械压实趋势一致。因此,毕机沟岩体冷却早期粒间熔体的排出机制为机械压实。在此基础上,我们将毕机沟与全球其他典型层状岩体从岩体规模、粒间熔体和堆晶矿物密度差、晶体堆积速率与压实速率以及晶粥层厚度等方面进行系统对比后发现,在层状岩体冷却早期没有岩浆补给和对流的情况下,当岩体规模相近时,压实受控于堆晶矿物与粒间熔体密度差,密度差越大压实越容易发生;而当岩体规模不同时,规模越大压实越容易发生。

关键词：晶体粒度分布空间展布形式粒间熔体压实作用层状岩体

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An overview for monitoring and prediction of pathogenic microorganisms in the atmosphere

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Fundamental Research 2024年第3期4卷 430-441页

作者： Jianping Huang Danfeng wang Yongguan Zhu Zifeng Yang Maosheng Yao Xiaoming Shi Taicheng An Qiang Zhang Cunrui Huang Xinhui Bi Jiang Li Zifa wang Yongqin Liu Guibing Zhu Siyu Chen Jian Hang Xinghua Qiu Weiwei Deng Huaiyu Tian Tengfei Zhang Tianmu Chen Sijin Liu Xinbo Lian Bin Chen Beidou Zhang Yingjie Zhao Rui wang Han Li Collaborative Innovation Center for Western Ecological Safety College of Atmospheric SciencesLanzhou UniversityLanzhou 730000China Research Center for Eco-Environmental Sciences Chinese Academy of SciencesBeijing 100085China National Clinical Research Center for Respiratory Disease Guangzhou Institute of Respiratory HealthFirst Affiliated Hospital of Guangzhou Medical UniversityState Key Laboratory of Respiratory Disease(Guangzhou Medical University)Guangzhou 510230China College of Environmental Sciences and Engineering Peking UniversityBeijing 100871China china CDC Key Laboratory of Environment and Population Health National Institute of Environmental HealthChinese Center for Disease Control and PreventionBeijing 100021China Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health School of Environmental Science and EngineeringInstitute of Environmental Health and Pollution ControlGuangdong University of TechnologyGuangzhou 510006China Ministry of Education Key Laboratory for Earth System Modeling Department of Earth System ScienceTsinghua UniversityBeijing 100084China Vanke School of Public Health Tsinghua UniversityBeijing 100084China State Key Laboratory of Organic geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Center for Pan-third Pole Environment Lanzhou UniversityLanzhou 730000China College of Atmospheric Sciences Lanzhou UniversityLanzhou 730000China School of Atmospheric Sciences Sun Yat-sen Universityand Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 510640

Corona virus disease 2.19(COVID-19)has exerted a profound adverse impact on human *** have demonstrated that aerosol transmission is one of the major transmission routes of severe acute respiratory syndrome coronavirus 2.SARS-CoV-2..Pathogenic microorganisms such as SARS-CoV-2.can survive in the air and cause widespread infection among *** monitoring of pathogenic microorganism transmission in the atmosphere and accurate epidemic prediction are the frontier guarantee for preventing large-scale epidemic *** of pathogenic microorganisms in the air,especially in densely populated areas,may raise the possibility to detect viruses before people are widely infected and contain the epidemic at an earlier *** multi-scale coupled accurate epidemic prediction system can provide support for governments to analyze the epidemic situation,allocate health resources,and formulate epidemic response *** review first elaborates on the effects of the atmospheric environment on pathogenic microorganism transmission,which lays a theoretical foundation for the monitoring and prediction of epidemic ***,the monitoring technique development and the necessity of monitoring pathogenic microorganisms in the atmosphere are summarized and ***,this review introduces the major epidemic prediction methods and highlights the significance to realize a multi-scale coupled epidemic prediction system by strengthening the multidisciplinary cooperation of epidemiology,atmospheric sciences,environmental sciences,sociology,demography,*** summarizing the achievements and challenges in monitoring and prediction of pathogenic microorganism transmission in the atmosphere,this review proposes suggestions for epidemic response,namely,the establishment of an integrated monitoring and prediction platform for pathogenic microorganism transmission in the atmosphere.

关键词： Aerosol transmission Epidemic monitoring methods Epidemic prediction modelsEpidemic response Multidisciplinary cooperation

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西昆仑克里雅地区晚三叠世S型花岗岩地球化学、锆石U-Pb年代学、Hf-Nd同位素特征及其地质意义

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岩石学报 2024年第8期40卷 2415-2428页

作者：王振宏王核白洪阳黄亮王堃宇刘金恒中国科学院广州地球化学研究所矿物学与成矿学重点实验室广州510640 中国科学院大学北京100049

锂是当今中国重要的战略金属资源。近年来,在西昆仑稀有金属成矿带中陆续发现卡拉瓦拉、牧林场、康西瓦、白龙山、雪凤岭等中大型高品位伟晶岩型锂矿。为了在具有锂铍化探异常圈定区域寻找新的稀有金属矿床,本次研究以西昆仑造山带东缘... 详细信息

锂是当今中国重要的战略金属资源。近年来,在西昆仑稀有金属成矿带中陆续发现卡拉瓦拉、牧林场、康西瓦、白龙山、雪凤岭等中大型高品位伟晶岩型锂矿。为了在具有锂铍化探异常圈定区域寻找新的稀有金属矿床,本次研究以西昆仑造山带东缘大红柳滩稀有金属矿集区的白龙山矿床为模型,建立“晚三叠世S型花岗岩-伟晶岩+巴颜喀拉群地层+韧性剪切带的薄弱地段就位+锂铍化探异常”的组合找矿模型。为了探究位于大红柳滩东缘的克里雅地区是否具有发现稀有金属矿床的潜力,本文以这套组合找矿模型为指导思想,结合地球化学、锆石U-Pb年代学及Hf-Nd同位素等方法对克里雅花岗岩体的研究成果,同时通过区域地层及其构造背景与白龙山矿床的对比分析,结果表明:克里雅岩体属于S型二长花岗岩,平均年龄为2.7±1.1Ma,与白龙山矿床母岩S型二云母花岗岩在误差范围内一致;此外,尽管克里雅区域锂铍化探异常较高,出露地层相同,且出露伟晶岩,构造形成环境同为后碰撞,但两者岩浆源区不一致。基于以上研究,本文认为克里雅地区不适合运用以白龙山伟晶岩型锂矿床为模型的找矿理论指导。

关键词：克里雅二长花岗岩锆石U-Pb定年 Hf-Nd同位素稀有金属西昆仑

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东濮凹陷白庙构造油气源与成藏史

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石油与天然气地质 2003年第2期24卷 130-135页

作者：冯建辉谈玉明罗小平王伟栋潘长春盛国英傅家谟中国科学院广州地球化学研究所广东广州510640 中国石化中原油田分公司

白庙构造是东濮凹陷南部地区的一个含油环、凝析油的富气构造。生物标志物研究表明该构造不同部位的原油来源于不同的烃源岩。构造低部位 (底部和翼部 )的原油来源于沙河街组三段 2.段。这类原油奥利烷、γ -蜡烷、C3 0 重排藿烷和C2.... 详细信息

白庙构造是东濮凹陷南部地区的一个含油环、凝析油的富气构造。生物标志物研究表明该构造不同部位的原油来源于不同的烃源岩。构造低部位 (底部和翼部 )的原油来源于沙河街组三段 2.段。这类原油奥利烷、γ -蜡烷、C3 0 重排藿烷和C2.9Ts等生物标志物含量相对较高 ,Ts/Tm比值和重排甾烷 /规则甾烷比值高 ,以及甾烷C2.9ββ/ (αα +ββ)和 2.0S/ (R +S)指标高。构造高部位的原油则来源于沙河街组三段 3,4亚段甚至沙河街组四段 ,生物标志物组成特征与低部位的原油正好相反 ,具有早期生烃的特征 ,甾烷异构化指标C2.9ββ/ (αα +ββ)和2.0S/ (R +S)比值低。

关键词：东濮凹陷油源对比成藏史生物标志物

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华北克拉通东部早白垩世火山岩:再循环物质差异性改造的记录

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地球科学 2024年第2期49卷 669-684页

作者：汪浪汤华云汪翔宗克清郭京梁程怀汪在聪中国地质大学地球科学学院地质过程与矿产资源国家重点实验室湖北武汉430074 广州海洋地质调查局三亚南海地质研究所海南三亚572025

华北克拉通东部在130~12. Ma早白垩世期间经历强烈改造,并伴随大规模岩浆活动.对比研究了这一时期山东鲁西地区、郯庐断裂带和胶东半岛玄武安山岩-安山岩等幔源岩石的地球化学特征和Sr-Nd同位素组成,探讨了各地区火山岩源区性质以及造... 详细信息

华北克拉通东部在130~12. Ma早白垩世期间经历强烈改造,并伴随大规模岩浆活动.对比研究了这一时期山东鲁西地区、郯庐断裂带和胶东半岛玄武安山岩-安山岩等幔源岩石的地球化学特征和Sr-Nd同位素组成,探讨了各地区火山岩源区性质以及造成源区不均一性的可能原因.这些火山岩均来自富集型地幔且受地壳组分的混染影响较小,并主要经历了单斜辉石、磷灰石和Ti-Fe氧化物的分离结晶,但相较于郯庐断裂带和胶东半岛而言,鲁西火山岩的演化程度更低.不同地区火山岩均具有岛弧型微量元素和富集的Sr-Nd同位素组成,其中,鲁西北部火山岩表现为(^(87)Sr/^(86)Sr)i0.706的Ⅱ型富集地幔特征,这暗示上述火山岩可能均来自被再循环地壳物质改造的富集地幔源区,且其源区富集程度具有从西北到东南逐渐增强的趋势.Sr-Nd同位素两端元混合模拟显示,鲁西北部火山岩EMⅠ型同位素特征可能与其地幔源区受华北下地壳物质的交代有关,而鲁西中-南部、郯庐断裂带和胶东地区火山岩EMⅡ型同位素特点则更可能是源区受三叠纪俯冲扬子陆壳组分改造的结果.古太平洋板块来源的俯冲流体交代和水化也对这些地区的富集岩石圈地幔有不同程度改造.因此,山东半岛不同地区早白垩世火山岩记录了不同性质壳源组分对华北克拉通东部岩石圈地幔的影响,这一差异性改造对华北东部岩石圈地幔的破坏和减薄有重要制约作用.

关键词：早白垩世中基性火山岩富集岩石圈地幔地幔交代华北克拉通地球化学

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Petrogenesis of the Early Jurassic Nandaling flood basalts in the Yanshan belt,North china Craton:A correlation between magmatic underplating and lithospheric thinning

Petrogenesis of the Early Jurassic Nandaling flood basalts i...

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中国科学院地质与地球物理研究所2.07学术年会

作者： Zhihong wang~(a,*),Yue Zhao~b,Haibo Zou~c,Wuping Li~d,Xiaowen Liu~e, Hai Wu~e,Gang Xu~b,Suanhong Zhang ~b a State Key Laboratory of Lithospheric Evolution,institute of Geology and Geophysics.Chinese Academy of Sciences,Beijing,10002..{2. b institute of Geomechanics,Chinese Academy of Geological Sciences,Beijing,100081.{2. c Department of Earth and Space Sciences.University of California at Los Angeles,Los Angeles,CA 90095,USA d guangzhou institute of geochemistry,Chinese Academy of Sciences,guangzhou,510640.{2. c Centre of Geological Materials,The Ministry of Land and Resources P.R.C.,Hebei,0652.1,{2.

Integrated geochemical and Sr-Nd-Pb isotopic studies of the Early Jurassic Nandaling flood basalts(NFB) in the Yanshan belt, northern margin of the North china Craton(NCC),are presented in this *** sub-alkaline basalts evolved from a more magnesium-rich parental magma through fractional crystallization of olivine and *** primitive magma of the NFB originated from 2.5%partial melting of spinel to garnet transitional peridotite at about 70-80 km depth in the Mesozoic lithosphere *** NFB contain a distinctive lithospheric component,characterized by Nb(Ta),Th,U and Ti depletions,LREE enrichments, moderate Sr,and low Nd and Pb initial isotopic ratios,as a result of an interaction between lower crust(15-2.%) and primitive magma evoked by magmatic underplating at crust-mantle *** Early Jurassic NFB extruded in an intraplate extensional setting related to post-orogenic collapse in the northern margin of the NCC,indicating an event of lithospheric modification earlier than that in the southern margin(Early Cretaceous).The temporal similarity of the Jurassic-Cretaceous mantle-derived mafic rocks to lower crust replacement,and the decoupling of surface shortening with lithospheric thinning during the Late Jurassic-Early Cretaceous, suggest the important role of magmatic underplating and subsequent crust-mantle interaction accompanied by asthenosphere upwelling on the evolution of the Mesozoic lithosphere of the *** correlation between lithospheric thinning and magmatic underplating may be an important process in continental rifting.

关键词： Early Jurassic Nandaling flood basalts Petrogenesis Magmatic underplating Lithospheric thinning North china Craton

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