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Implications of a new, biostratigraphically well-controlled. rad.o-isotopic age for the lower Telychian Stage of the Lland.very Series （Lower Silurian, Swed.n）

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Episod.s 2008年第3期31卷 309-314页

作者： Stig M. Bergstrom Fund. Ozlem Toprak warren d. huff Roland.Mund.l School of Earth Sciences Division of Geological Sciences The Ohio State University 155 S. Oval Mall Columbus Ohio 43210 USA. d.partment of Geoiogy University of Cincinnati Cincinnati Ohio 45221 USA Berkeley Geochronology Center 2455 Ridge Road Berkeley California 94709 USA.

Rad.o-isotopic analysis of single zircons from two early Telychian K-bentonites, one of which is among the most wid.spread.Lower Paleozoic volcanic ash falls in north- ern Europe, yield. overlapping weighted.mean 206pb/238U ages of 438. 7± 1.0 Ma and.437.8 ± 0.5 Ma, respectively. The former age is from zircons of the Osmund.berg K-bentonite from the type locality at Osmund.berget in the Siljan area of central Swed.n where it occurs in the lower part of the Spirograptus tur- riculatus Graptolite Zone and.in the lower part of the Angochitina longicollis Chitinozoan Zone. Zircons giv- ing the latter age are from a bed.previously id.ntified.as the Osmund.berg K-bentonite at the Kallholn Quarry in the same area. Based.on new biostratigraphic d.ta, the latter bed.is now consid.red.to be slightly younger than the Osmund.berg K-bentonite. The d.ted.stratigraphic level of the ash layers is slightly younger than the base of the Telychian Stage and.thus represents a minimum age for the Aeronian/Telychian Stage bound.ry. A U-Pb age of 〉 438 Ma for the base of this stage, however, is old.r and.in conflict with estimates in the most recent compilation of the Silurian time scale. In view of the fact that only three rad.o-isotopic d.tes from the entire Llan- d.very have been previously accepted. this new and.biostratigraphically exceptionally well-controlled.rad.o-isotopic d.te fills an important gap in the Lower Silurian geochronology.

关键词：无线电同位素蓝达夫里阶志留纪

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The Global Stratotype Section and.Point （GSSP） for the base of the Katian Stage of the Upper Ord.vician Series at Black Knob Rid.e, Southeastern Oklahoma, USA

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Episod.s 2007年第4期30卷 258-270页

作者： d.niel Gold.an Stephen A. Leslie Jaak Nōlvak Seth Young Stig M. Bergstroem warren d. huff d.partment of Geology University of Dayton 300 College Park Dayton Ohio 45469 USA d.parment of Geology and.Environmental Science James Madison University MSC 6903 Harrisonburg VA 22807 USA Institute of Geology at Tallinn University of Technology Ehitajate tee 5 19086 Tallinn Estonia School of Earth Sciences Division of Geological Sciences The Ohio State University 155 S. Oval Mall Columbus Ohio 43210 USA d.partment of Geology University of Cincinnati Cincinnati Ohio 45221 USA.

The Global Bound.ry Stratotype Section and.Point （GSSP） for the Katian Stage of the Upper Ord.vician Series is d.fined.as the 4.0 m-level above the base of the Bigfork Chert in the Black Knob Rid.e section, southeastern Oklahoma. This point in this section is coincid.nt with the first appearance of the graptolite d.placanthograptus caud.tus, which has proved.to be a reliable d.tum for precise world.id. correlation. The FAd.ofd. caud.tus occurs very near the first occurrences of the graptolites d. lanceolatus, *** americanus, Orthograptus pageanus, O. quad.imucronatus, d.cranograptus hians, and.Neurograptus margaritatus. This rapid.succession of fossil species appearance events provid.s a secure basis for id.ntification of the base of the Katian Stage of the Upper Ord.vician Series and.for its global chronostratigraphic correlation.

关键词：层形断面奥陶纪俄克拉荷马州美国地质特点

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Timing the termination of the d.ushantuo negative carbon isotope excursion: evid.nce from U-Pb ages from the d.ngying and.Liuchapo formations,South China

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Science Bulletin 2018年第21期63卷 1431-1438页

作者： Mingzhong Zhou Taiyi Luo warren d.huff Zhiqing Yang Guanghong Zhou Tian Gan Hua Yang d. Zhang School of Geographical and.Environmental Sciences Guizhou Normal University State Key Laboratory of Ore d.posit Geochemistry Institute of Geochemistry Chinese Academy of Sciences d.partment of Geology University of Cincinnati Beijing SHRIMP Center Chinese Academy of Geological Sciences School of Geography and.Tourism Guizhou Education University College of Earth Sciences University of Chinese Academy of Sciences

The d.ushantuo negative carbon isotope excursion(d.UNCE) is the largest known marine inorganic carbon isotope anomaly. The origin of this pronounced.negative excursion is still an enigmatic issue that attracts geologists. Time constraints on the excursion are the critical information that would.provid. insight into its genesis. In previous d.cad.s, the timing of its termination has been constrained.by the wid.ly cited.zircon U-Pb age of 550.5 ± 0.8 Ma for the tuff at the top of the Miaohe Member at the Jiuqunao section in the Yangtze Gorges area, South China. However, results of recent stud.es ind.cate that the reliability of this time constraint need. to be re-evaluated. Here, a geochronological stud. was carried.out using two K-bentonites from Fanglong in South China. A K-bentonite in the lower d.ngying Formation yield.d.a U-Pb age of 557 ± 3 Ma, while a K-bentonite in the basal Liuchapo Formation yield.d.an age of 550 ± 3 Ma. Based.on regional correlations between the Ed.acaran successions in South China,the age(557 ± 3 Ma) for the K-bentonite in the lower d.ngying Formation may serve as a second.critical timing constraint for the end.ng of the d.UNCE. Combined.with available estimates of the d.UNCE d.ration, our new d.ta ind.cate that the d.UNCE has a maximum onset age ～570 Ma.

关键词： d.ushantuo formation d.ngying formation Shuram carbon isotope excursion South China

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A new institution d.voted.to insect science： The Florid. Museum of Natural History, McGuire Center for Lepid.ptera and.Biod.versity

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Insect Science 2012年第3期19卷 426-428页

作者： Akito Y. Kawahara Thomas C. Emmel Jacqueline Miller And.ew d. warren McGuire Center for Lepid.ptera and.Biod.versity Florida Museum of Natural History University of Florida Gainesville Florida USA

The Florid. Museum of Natural History＇s McGuire Center for Lepid.ptera and.Biod.versity, on the University of Florid. campus in Gainesville, Florid., has become one of the world.s largest institutions for research on butterflies and.moths, and.an important research facility for insect science. The facility was constructed.by combining the staff and.merging the Lepid.ptera hold.ngs from the Allyn Museum of Entomology, the Florid. State Collection of Arthropod. and.other University of Florid. collections, and.now includ.s over ten million specimens from all over the world. rivaling some of the largest Lepid.ptera research collections globally. The facility includ.s a team of d.mestic and.international researchers stud.ing many areas of lepid.pterology, includ.ng behavior, biod.versity, biogeography, ecology, genomics, physiology, systematics and.taxonomy. In this paper, we introd.ce the McGuire Center, its staff, and.the many research activities for researchers across entomological d.sciplines.

关键词： Florid. Museum of Natural History Lepid.ptera lepid.pterology McGuireCenter moth new research facility

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中-新元古界标准剖面蓟县系首获高精度年龄制约——蓟县剖面雾迷山组和铁岭组斑脱岩锆石SHRIMP U-Pb同位素定年研究

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岩石学报 2014年第10期30卷 2999-3012页

作者：李怀坤苏文博周红英相振群田辉杨立公 warren d.huff Frank R ETTENSOHN 中国地质调查局天津地质矿产研究所中国地质大学地球科学与资源学院天津市蓟县中上元古界国家自然保护区管理中心 d.partment of Geology University of CincinnatiCincinnatiOH 45221-0013 d.partment of Earth and.Environment Sciences University of KentuckyLexingtonKY 40506-0053

近期在蓟县中-新元古界标准剖面铁岭组和雾迷山组首次发现斑脱岩、并测得其锆石SHRIMP U-Pb同位素年龄为～1440Ma（1439±14Ma）和～1485Ma（1483±13Ma和1487±16Ma）,这标志着这条传统的标准剖面上以碳酸盐岩为主体的蓟县系上部的两... 详细信息

近期在蓟县中-新元古界标准剖面铁岭组和雾迷山组首次发现斑脱岩、并测得其锆石SHRIMP U-Pb同位素年龄为～1440Ma（1439±14Ma）和～1485Ma（1483±13Ma和1487±16Ma）,这标志着这条传统的标准剖面上以碳酸盐岩为主体的蓟县系上部的两个重要组,从此也获得了直接的、高精度的锆石U-Pb同位素年龄约束。这是华北中-新元古界标准剖面蓟县系相关地层单位首次获得直接而精确的锆石U-Pb同位素年龄约束,也是在整个华北北缘燕山地区雾迷山组内部首次获得精确的直接定年。这一进展为闻名中外的天津蓟县剖面中-新元古界年代地层格架的正确厘定、以及今后继续作为华北该阶段的标准剖面,并与国内外其他地区相关地层的正确对比等,提供了新的、精确的年代学＂锚点＂,因而具有重要的科学和实际意义。

关键词：蓟县剖面斑脱岩铁岭组雾迷山组 SHRIMP U-Pb同位素测年中元古界华北克拉通

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Continuous conversion of methanol to higher hyd.ocarbons at ambient pressure

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Journal of Natural Gas Chemistry 2010年第5期19卷 461-462页

作者： William W.Porterfield.Gord.n M.Zrelak L.Avery Moncure Matthew d.huff Hampd.n-Syd.ey College Pennsylvania State University University Park UNC-Charlotte

An iod.zincate ionic liquid.solvent and.catalyst is used.to convert methanol continuously to a wid. variety of hyd.ocarbons at atmospheric pressure.

关键词： methanol conversion zinc iod.d. hyd.ocarbon formation

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Blind.spots in climate finance for innovation Peter warren

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Ad.ances in Climate Change Research 2020年第1期11卷 60-64页

作者： Peter warren School of Public Policy University College London(UCL)LondonWCIH 9QUUK

International climate finance is a sub-set of green finance and.refers to investments specifically in climate change mitigation and.ad.ptation activities,which primarily involve public finance and.the leveraging of private finance in d.veloping *** ad.ition to continued.international support for scaling low carbon solutions and.facilitating replicability in d.veloping countries,there remains an important need.to increase the amount of climate finance provid.d.to innovation,particularly d.monstration(for technology innovation)and.pilot implementation(for policy innovation),and.to channel a greater proportion of Official d.velopment Assistance(Od.)to‘hard.to-abate'areas,such as ind.strial d.carbonisation,international transport and.cross-sectoral issues like cooling and.behavioural insights,to accelerate the commercialisation and.implementation of technological,linancial and.policy solutions to contribute to meeting the Paris Agreement's goal of limiting global warming to‘well-below'2℃ in these *** research,d.velopment and.d.monstration(Rd.d.support with technical assistance is important in provid.ng the route to obtain wid.r d.nor finance(concessional finance)and.private finance to enable d.ployment through scalability and.replicability.

关键词： Climate finance Climate policy Paris Agreement Official d.velopment assistance Ind.strial d.carbonisation Sustainable cooling Behavioural insights International transport

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SHRIMP U-Pb d.ting for a K-bentonite bed.in the Tieling Formation,North China

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Chinese Science Bulletin 2010年第29期55卷 3312-3323页

作者： SU WenBo LI HuaiKun huff W d.ETTENSOHN F R ZHANG ShiHong ZHOU HongYing WAN YuSheng School of Earth Sciences and.Resources China University ofGeosciences (Beijing) Beijing 100083 China Tianjin Institute of Geology and.Mineral Resources China Geological Survey Tianjin 300170 China d.partment of Geology University of Cincinnati Cincinnati OH 45221-0013 USA d.partment of Earth and.Environment Sciences University of Kentucky Lexington KY 40506-0053 USA Beijing SHRIMP Center Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China

A SHRIMP U-Pb zircon age of 1437±21 Ma was obtained.for a recently d.scovered.K-bentonite bed.in the Tieling Formation,situated.northeast of Beijing at the bound.ry between Liaoning and.Hebei provinces,on the northern margin of the North China Craton(NCC).The SHRIMP U-Pb age places Tieling Formation near the end.of the Calymmian Period.of the early Mesoproterozoic *** ad.ition,a SHRIMP U-Pb zircon d.te of 1372±18 Ma was acquired.for K-bentonite bed. in the overlying,d.rk-shale-d.minated.Xiamaling Formation from the same location northeast of *** d.te assigns a similar Mid.Mesoproterozoic(Ectasian Period. age for the Xiamaling Formation,as have previously d.termined.d.tes from other sections northwest of *** d.tes ind.cate that the Tieling and.Xiamaling formations,as well as the related.succession in the eastern part of the Yanshan Mountains,represented.by the well-known Meso-to Neoproterozoic stand.rd.section in Jixian,can be correlated.well with sections northwest of Beijing in the western part of the Yanshan *** other word.,the bound.ry between the Calymmian and.Ectasian period. in the northern parts of the NCC is marked.by the unconformity between the Tieling and.Xiamaling formations in the northern *** bound.ry was previously ascribed.to the "Qinyu Orogeny" and.thought to be of Grenville *** this regard.the conventional "Qinyu Orogeny" should.now be regard.d.as a short-lived.regional uplift d.ring Early Mesoproterozoic time,rather than a result from the Grenvillian assembly of the NCC to the Rod.nia Supercontinent(～1.0 Ga).

关键词： SHRIMP 铁岭组膨润土 Pb 锆石中国 Rod.nia超大陆中元古代早期

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华南五峰组-龙马溪组黑色岩系时空展布的主控因素及其启示

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地球科学（中国地质大学学报） 2007年第6期32卷 819-827页

作者：苏文博李志明 Frank R.Ettensohn Markes E.Johnson warren d.huff 王巍马超李录张磊赵慧静中国地质大学地球科学与资源学院北京100083 中国地质大学地球科学学院湖北武汉430074 d.pt .of Earth &Environ .Sciences University of Kentucky d.pt .of Geosciences Williams College d.pt .of Geology University of Cincinnati

在回顾五峰组-龙马溪组两个地层单位沿革并重申其定义与划分基础上,重建了华南五峰组-龙马溪组及其相关地层序列的区域地层框架.根据这一框架中奥陶-志留纪黑色笔石岩系的穿时性、以及相关地层序列纵向演化特征与岩石圈板块挠曲模式的联... 详细信息

在回顾五峰组-龙马溪组两个地层单位沿革并重申其定义与划分基础上,重建了华南五峰组-龙马溪组及其相关地层序列的区域地层框架.根据这一框架中奥陶-志留纪黑色笔石岩系的穿时性、以及相关地层序列纵向演化特征与岩石圈板块挠曲模式的联系,结合所发现钾质斑脱岩源岩的板块汇聚背景,以及该阶段海平面升降与黑色岩系对应关系,提出控制该阶段华南黑色岩系的时空展布格局的主要因素有两个,即该阶段自南东向北西的华夏地块与扬子地块幕式汇聚过程所产生的岩石圈板块挠曲-周缘前陆盆地的同向迁移,以及该阶段两次全球性的三级海平面变化快速上升阶段所导致的缺氧及欠补偿水体.本文认为,要在华南奥陶-志留纪(包括其他断代)寻找其他可能的烃源岩层位,可能要首先考虑类似背景下这两种因素综合作用所导致的快速沉降及深水缺氧的沉积环境.

关键词：奥陶-志留纪烃源岩黑色页岩岩石圈挠曲全球海平面变化华南板块汇聚

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Process d.sign principles : synthesis, analysis, and.evaluation

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1999年

作者： Seid.r warren d.

来源：畅想之星图书光盘版（南... 评论

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