Collaborative Research: Neotectonic Structure of Terror Rift, Western Ross Sea

合作研究:西罗斯海恐怖裂谷的新构造结构

基本信息

项目摘要

This award, provided by the Antarctic Geology and Geophysics Program of the Office of Polar Programs, provides funds for a study to investigate the tectonic development of the southwestern Ross Sea region. Displacements between East and West Antarctica have long been proposed based on global plate circuits, apparent hot spot motions, interpretations of seafloor magnetic anomalies, paleomagnetism, and on geologic grounds. Such motions require plate boundaries crossing Antarctica, yet these boundaries have never been explicitly defined. This project will attempt to delineate the late Cenozoic - active boundary between East and West Antarctica along the Terror Rift in the western Ross Sea, where young structures have been identified, continuity between active extension and intracontinental structures can be established, and where accessibility via ship will allow new key data sets to be acquired. We will use multi-source marine and airborne geophysical data to map the fault patterns and volcanic structure along the eastern margin of the Terror Rift. The orientations of volcanic fissures and seamount alignments on the seafloor will be mapped using multibeam bathymetry. The volcanic alignments will show the regional extension or shear directions across the Terror Rift and the orientations of associated crustal stresses. Swath bathymetry and single channel seismic data will be used to document neotectonic fault patterns and the eastern limit of recent faulting. Delineation of neotectonic fault patterns will demonstrate whether the eastern margin of the Terror Rift forms a continuous boundary and whether the rift itself can be linked with postulated strike-slip faults in the northwestern Ross Sea. Seafloor findings from this project will be combined with fault kinematic and stress field determinations from the surrounding volcanic islands and the Transantarctic Mountains. The integrated results will test the propositions that the eastern boundary of the Terror Rift forms the limit of the major, late Cenozoic -active structures through the Ross Sea and that Terror Rift kinematics involve dextral transtension linked to the right-lateral strike-slip faulting to the north. These results will help constrain the kinematic and dynamic links between the West Antarctic rift system and Southern Ocean structures and any related motions between East and West Antarctica. In the first year, a collaborative structural analysis of existing multichannel and single channel seismic profiles and aeromagnetic data over the Terror Rift will be conducted. The location of volcanic vents or fissures and any fault scarps on the sea floor will be identified and a preliminary interpretation of the age and kinematics of deformation in the Terror Rift will be produced. Late in the second year, a one-month cruise on RVIB N.B. Palmer will carry out multibeam bathymetric and sidescan sonar mapping of selected portions of the seafloor of Terror Rift. Gravity, magnetics, seismic reflection and Bathy2000 3.5 kHz sub-bottom profile data will also be collected across the rift. In the third year, we will use these multisource data to map the orientations and forms of volcanic bodies and the extent and geometry of neotectonic faulting associated with the Terror Rift. The project will: 1) complete a map of neotectonic faults and volcanic structures in the Terror Rift; 2) interpret the structural pattern to derive the motions and stresses associated with development of the rift; 3) compare Terror Rift structures with faults and lineaments mapped in the Transantarctic Mountains to improve age constraints on the structures; and 4) integrate the late Cenozoic structural interpretations from the western Ross Sea with Southern Ocean plate boundary kinematics.
该奖项由极地方案办公室南极地质和地球物理方案提供,为一项研究罗斯海西南部地区构造发展的研究提供资金。长期以来,东南极和西南极之间的位移一直是基于全球板块电路、明显的热点运动、海底磁异常的解释、古地磁和地质原因而提出的。这种运动需要跨越南极洲的板块边界,但这些边界从未被明确定义过。该项目将试图沿着罗斯海西部的恐怖裂谷划定南极洲东部和西部之间新生代晚期活动的边界,在那里已经发现了年轻的构造,可以在活动伸展和陆内结构之间建立连续性,通过船只进入将能够获得新的关键数据集。我们将使用多源海洋和航空地球物理数据来绘制沿恐怖裂谷东缘的断层模式和火山结构图。将使用多波束测深技术绘制海底火山裂缝和海山路线的方位图。火山排列将显示横跨恐怖裂谷的区域伸展或剪切方向以及相关地壳应力的方向。带状水深测量和单通道地震数据将被用来记录新构造断层模式和最近断层的东部界限。新构造断裂模式的描绘将表明,恐怖裂谷的东缘是否形成了一个连续的边界,以及裂谷本身是否可以与罗斯海西北部的假定走滑断裂联系在一起。该项目的海底发现将与周围火山岛和横贯北极山脉的断层运动学和应力场测定相结合。综合结果将检验这样的命题,即恐怖裂谷的东部边界构成了穿过罗斯海的主要晚新生代活动构造的界限,并且恐怖裂谷的运动学涉及与向北的右旋走滑断层相连的右旋伸展。这些结果将有助于限制西南极裂谷系统和南大洋构造之间的运动学和动力学联系,以及东南极和西南极之间的任何相关运动。在第一年,将对现有的多通道和单通道地震剖面和恐怖裂谷上的航磁数据进行合作结构分析。将查明火山喷口或裂缝以及海底的任何断层崖的位置,并将初步解释恐怖裂谷的变形年龄和运动学。第二年晚些时候,RVIB N.B.Palmer号上的一次为期一个月的巡航将对恐怖裂谷海底的选定部分进行多波束测深和侧扫声纳测绘。重力、磁学、地震反射和Bathy2000 3.5千赫海底剖面数据也将通过裂谷收集。在第三年,我们将使用这些多源数据来绘制火山体的方向和形式以及与恐怖裂谷相关的新构造断层的范围和几何形状。该项目将:1)完成恐怖裂谷中新构造断裂和火山构造的地图;2)解释构造模式,以得出与裂谷发展有关的运动和应力;3)将恐怖裂谷构造与横贯北极山脉的断层和线形构造进行比较,以改善对构造的年龄限制;以及4)将来自罗斯海西部的晚新生代构造解释与南大洋板块边界运动学相结合。

项目成果

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Terry Wilson其他文献

Energy-aware metrics for benchmarking heterogeneous systems
用于对异构系统进行基准测试的能源感知指标
  • DOI:
  • 发表时间:
    2011
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Simon McIntosh;Terry Wilson;J. Crisp;A. A. Ibarra;R. Sessions
  • 通讯作者:
    R. Sessions
iRest yoga-nidra on the college campus: changes in stress, depression, worry, and mindfulness.
大学校园中的 iRest 瑜伽休息术:压力、抑郁、担忧和正念的变化。
  • DOI:
    10.17761/ijyt.23.2.r8735770101m8277
  • 发表时间:
    2013
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Heather P. Eastman;Terry Wilson;Ae;Andrea Kimura;J. Tarrant
  • 通讯作者:
    J. Tarrant
A joint international consensus statement for measuring quality of survival for patients with childhood cancer
衡量儿童癌症患者生存质量的联合国际共识声明
  • DOI:
    10.1038/s41591-023-02339-y
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    82.9
  • 作者:
    Rebecca J. van Kalsbeek;M. Hudson;R. L. Mulder;M. Ehrhardt;D. Green;D. Mulrooney;Jessica Hakkert;J. den Hartogh;A. Nijenhuis;H. V. van Santen;A. S. Schouten;Harm van Tinteren;L. Verbruggen;H. Conklin;L. Jacola;R. Webster;M. Partanen;W. Kollen;M. Grootenhuis;R. Pieters;L. Kremer;Rebecca J. Jaap Hanneke M. Harm Femke Madeleine Traci Chan van Kalsbeek den Hartogh van Santen van Tinteren A;Rebecca J. van Kalsbeek;J. den Hartogh;H. V. van Santen;Harm van Tinteren;F. Aarsen;Madeleine Adams;Traci Adams;Chantal van den Akker;Roland Amman;Shekinah J Andrews;Greg Armstrong;Andishe Atterbaschi;Amedeo A Azizi;K. van Baarsen;Simon Bailey;Justin Baker;Lisa Bakker;Laura R. Beek;Peter Bekkering;Janneke van den Bergen;Esther M. M. van den Bergh;M. Bierings;Michael Bishop;G. Bisogno;John Boatner;Saskia Boerboom;Judith de Bont;F. Boop;C. van den Bos;Eric Bouffet;Rick Brandsma;Ida Bremer Ophorst;Bernadette Brennan;Rachel C. Brennan;D. Bresters;Sippy ten Brink;L. Brugières;Birgit Burkhardt;Gabriele Calaminus;F. Calkoen;Kristin E. Canavera;Leeann Carmichael;Sharon M Castellino;M. Cepelova;W. Chemaitilly;Julia Chisholm;Karen Clark;Debbie Crom;Amanda Curry;Brian M. DeFeo;Jennifer van Dijk;Stephanie B. Dixon;Jeffrey Dome;Jean Donadieu;Babet L Drenth;Carlo Dufour;Adam Esbenshade;G. Escherich;T. Fay;C. Faure;Andrea Ferrari;J. Flerlage;Kayla Foster;Lindsay Frazier;Wayne Furman;Carlos Galindo;Hoong;Jessica A. Gartrell;James I. Geller;C. Gidding;Jan Godzinsky;B. Goemans;R. Gorlick;Rinske Graafland;Norbert Graf;M. van Grotel;Marjolein ter Haar;V. de Haas;M. Hagleitner;Karen Hale;Chris Halsey;Darren R Hargrave;J. Harman;Henrik Hasle;R. Haupt;L. Haveman;Douglas Hawkins;L. van der Heijden;Katja M. J. Heitink;M. V. D. van den Heuvel;N. Hijiya;L. Hjorth;B. Hoeben;Renske Houben;E. Hoving;C. Hulsker;Antoinette Jaspers;Liza Johnson;Niki Jurbergs;L. Kahalley;Seth E. Karol;G. Kaspers;Erica Kaye;Anne Kazak;Rachèl Kemps;T. Kepák;Raja Khan;P. Klimo;R. Knops;Andy Kolb;Rianne Koopman;K. Kraal;C. Kramm;Matthew T Krasin;P. Lähteenmäki;Judith Landman;J. Lavecchia;J. Lemiere;Angelia Lenschau;Charlotte Ligthart;Raphaële R. L. van Litsenburg;Jan Loeffen;Mignon Loh;John Lucas;J. van der Lugt;Peggy Lüttich;Renee Madden;Arshia Madni;John Maduro;Sanne van der Mark;Armanda Markesteijn;Christine Mauz;Annelies Mavinkurve;L. Meijer;T. Merchant;H. Merks;Bill Meyer;F. Meyer;Paul A. Meyers;Rebecka Meyers;Erna M. C. Michiels;M. Minkov;B. De Moerloose;Kristen Molina;John Moppett;Kyle Morgan;Bruce Morland;Sabine Mueller;Hermann Müller;Roosmarijn Muller;M. Muraca;Sandra Murphy;V. Nanduri;Michael Neel;C. Niemeyer;Maureen O’Brien;D. Orbach;Jale Özyurt;H. H. van der Pal;V. Papadakis;Alberto S Pappo;Lauren Pardue;Kendra R. Parris;Annemarie Peek;Bob Phillips;S. Plasschaert;Marieka Portegies;Brian S. Potter;I. Qaddoumi;Debbie Redd;Lineke Rehorst;Stephen Roberts;J. Roganovic;Stefan Rutkowski;M. V. D. van de Sande;Victor Santana;Stephanie Saslawsky;Kim Sawyer;Katrin Scheinemann;G. Schleiermacher;Kjeld Schmiegelow;R. Schoot;Fiona Schulte;A. Sehested;Inge Sieswerda;Rod Skinner;Relinde Slooff;Donna Sluijs;I. van der Sluis;Daniel Smith;Holly Spraker;Sheri L. Spunt;Mirjam Sulkers;T. Sweeney;Mary Taj;Clifford Takemoto;Aimee C. Talleur;Hannah Taylor;Chantal Tersteeg;Sheila Terwisscha;Sophie Thomas;Brigitte W. Thomassen;C. Tinkle;Rebecca Tippett;W. Tissing;I. Tonning;Anke Top;Erin Turner;Santhosh Upadhyaya;A. Uyttebroeck;Güler Uyuk;Kees P. van de Ven;B. Versluys;Emma Verwaaijen;Saphira Visser;Jochem van Vliet;E. de Vos;A. D. de Vries;D. V. van Vuurden;Claire Wakefield;K. Warren;Chantal van Wegen Peelen;Aaron Weiss;Marianne D van de Wetering;Jeremy Whelan;Romy Wichink;L. Wiener;Marc H.W.A. Wijnen;V. Willard;Terry Wilson;Jennifer Windham;Laura de Winter;O. Witt;M. Wlodarski;Kim Wouters;Corina Wouterse;Kasey Wyrick;L. Zaletel;Alia Zaidi;Jonne van Zanten;J. Zsiros;Lisa Zwiers
  • 通讯作者:
    Lisa Zwiers

Terry Wilson的其他文献

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{{ truncateString('Terry Wilson', 18)}}的其他基金

Collaborative Research: Investigating Ice Sheet - Solid Earth Feedbacks in West Antarctica: Implications for Ice Sheet Evolution and Stability
合作研究:调查冰盖 - 南极洲西部的固体地球反馈:对冰盖演化和稳定性的影响
  • 批准号:
    1745074
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
Group Travel to the XXXIV SCAR Open Science Conference, Kuala Lumpur, Malaysia
团体前往马来西亚吉隆坡举行的 XXXIV SCAR 开放科学会议
  • 批准号:
    1639838
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Group Travel to the 12th International Symposium on Antarctic Earth Sciences (ISAES), Goa, India
团体前往印度果阿参加第十二届南极地球科学国际研讨会 (ISAES)
  • 批准号:
    1545594
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Collaborative Research: POLENET-Antarctica: Investigating Links Between Geodynamics and Ice Sheets - Phase 2
合作研究:POLENET-南极洲:调查地球动力学和冰盖之间的联系 - 第二阶段
  • 批准号:
    1249631
  • 财政年份:
    2013
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
Group Travel to the 11th International Symposium on Antarctic Earth Sciences (ISAES), Edinburgh, Scotland
团体前往苏格兰爱丁堡参加第 11 届南极地球科学国际研讨会 (ISAES)
  • 批准号:
    1132087
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Collaborative Research: IPY: POLENET-Antarctica: Investigating Links Between Geodynamics and Ice Sheets
合作研究:IPY:POLENET-南极洲:调查地球动力学与冰盖之间的联系
  • 批准号:
    0632322
  • 财政年份:
    2007
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
Collaborative Research: POLENET Workshops: GPS & Seismology Planning for IPY
合作研究:POLENET 研讨会:GPS
  • 批准号:
    0652688
  • 财政年份:
    2006
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Development of a Structural and Stratigraphic Framework for the McMurdo Sound Region, Western Ross Sea.
开发西罗斯海麦克默多海峡地区的结构和地层框架。
  • 批准号:
    0313974
  • 财政年份:
    2003
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Collaborative Research - Transantarctic Mountains Deformation Network: GPS Measurements of Neotectonic Motion in the Antarctic Interior
合作研究 - 横贯南极山脉变形网络:南极内陆新构造运动的 GPS 测量
  • 批准号:
    0230285
  • 财政年份:
    2003
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
ANTEC - U.S.: Workshop and Science Planning Activities
ANTEC - 美国:研讨会和科学规划活动
  • 批准号:
    0123184
  • 财政年份:
    2001
  • 资助金额:
    --
  • 项目类别:
    Standard Grant

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Collaborative Research: Filling in the Central Himalayan Seismic Gap: A Structural, Neotectonic, and Paleoseismic Investigation of the Western Nepal Fault System
合作研究:填补喜马拉雅中部地震间隙:尼泊尔西部断层系的构造、新构造和古地震研究
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知道了