The exhumation of northern Victoria Land and consequences on the uplift of the Transantarctic Mountains

维多利亚北部土地的挖掘及其对横贯南极山脉隆起的影响

基本信息

项目摘要

The project aims to reconstruct the long-term landscape evolution of northern Victoria Land. The study area occupies the termination of the Transantarctic Mountains at the intersection between the Pacific Antarctic transform margin and the West Antarctic Rift System. It is composed of three terranes: the Precambrian cratonic Wilson Terrane, and the Paleozoic metasedimentary Bowers and Robertson Bay terranes. This geological division is reflected by a distinctive geomorphological contrast between elevated, deeply incised inland plateaus and an Alpine coastal morphology, and appears to correlate with considerably varying uplift and exhumation histories. Exhumation of the Wilson Terrane has been reconstructed in detail during the last years my means of thermochrono¬logical and structural data, and geomorphological observation. These data require the existence of a long-lasting Mesozoic basin in the vicinity of the present Transantarctic Mountains that was exhumed in two stages. Basin inversion and extensive denudation commenced in the Early Oligocene, followed by increased uplift, plateau formation and incision since the Miocene. The project focuses on the exhumation of the Bowers and Robertson Bay Terranes and related tectonic processes, as well as the development of the landscape contrast across northern Victoria Land. The outcome of the project will enhance substantially our knowledge about the uplift of the Transantarctic Mountains and the evolution of the West Antarctic Rift System, contribute new arguments for the interpretation of the seismic stratigraphy in the Ross Sea troughs, and improve our understanding of the system tectonics – climate – lithology. It also has first-order consequences on timing and course of Gondwana breakup between Antarctica and Australia and will provide essential background parameters for the long-term climate reconstruction of the southern hemisphere. Methodologically, the project relies on structural geology, geomorphological observation and sampling of basement, cover rocks and brittle structures during the BGR expedition GANOVEX XIII (2018/19). Subsequent thermochronological research includes fission track (FT) and (U-Th-Sm)/He analyses on apatites and zircons, followed by thermal history modelling and a three-dimensional reconstruction of the isotherm pattern of the uppermost crust.
该项目旨在重建北方维多利亚地的长期景观演变。研究区域位于太平洋-南极转换边缘和西南极裂谷系交汇处的横贯南极山脉的末端。它由三个岩块组成:前寒武纪的威尔逊地体和古生代的鲍尔斯和罗伯逊湾变质沉积岩块。这种地质划分反映了一个独特的地貌对比之间的高架,深切割的内陆高原和阿尔卑斯山沿海形态,并出现了相当不同的隆起和剥露历史。在过去的几年里,我利用热年代学和构造数据以及地貌观测对威尔逊地体的发掘进行了详细的重建。这些数据需要在目前的横贯南极山脉附近存在一个长期的中生代盆地,该盆地分两个阶段被挖掘出来。早渐新世开始盆地反转和大规模剥蚀,中新世以来逐渐隆升、高原形成和下切。该项目的重点是鲍尔斯和罗伯逊湾地体的发掘和相关的构造过程,以及北方维多利亚地景观对比的发展。该项目的成果将大大提高我们对南极洲横贯山脉隆升和西南极裂谷系演化的认识,为罗斯海槽地震地层学的解释提供新的论据,并提高我们对该系统构造-气候-岩性的理解。它还对南极洲和澳大利亚之间冈瓦纳大陆分裂的时间和过程产生了一级影响,并将为南半球的长期气候重建提供重要的背景参数。在方法上,该项目依赖于BGR考察GANOVEX XIII(2018/19)期间的构造地质学,地貌观测以及基底,盖层岩石和脆性结构的采样。随后的热年代学研究包括裂变径迹(FT)和(U-Th-Sm)/He分析磷灰石和锆石,其次是热历史建模和三维重建的等温线模式的最上层地壳。

项目成果

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Professor Dr. Frank Lisker其他文献

Professor Dr. Frank Lisker的其他文献

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{{ truncateString('Professor Dr. Frank Lisker', 18)}}的其他基金

INTERRELATIONS BETWEEN THE TECTONOMORPHIC HISTORY OF THE ARCTIC AND ITS PAST ENVIRONMENTAL CHANGESPart I: Cenozoic tectonothermal evolution of North and Northeast Greenland
北极构造形态历史与其过去环境变化之间的相互关系第一部分:格陵兰岛北部和东北部新生代构造热演化
  • 批准号:
    412852745
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Long term structural development and landscape evolution of eastern Dronning Maud Land, and implications for the geological evolution of the Weddell Sea region
东宁莫德地的长期结构发展和景观演化,以及对威德尔海地区地质演化的影响
  • 批准号:
    200179592
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Cooling and denudation history of Spitsbergen, and inferences for tectonics, climate and longterm landscape evolution
斯匹次卑尔根岛的冷却和剥蚀历史以及构造、气候和长期景观演化的推论
  • 批准号:
    164682497
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
    Research Grants
The influence of climate and tectonics on uplift and denudation of the Terra Nova Bay Region (Transantarktisches Gebirge)
气候和构造对特拉诺瓦湾地区(横贯南极山脉)隆起和剥蚀的影响
  • 批准号:
    131296851
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
North Atlantic rifting and evolution of the passive continental margins of the Pearya Terrane/Ellesmere Island (NE Canada) and Svalbard - Field work and sampling
北大西洋裂谷和皮尔亚地体/埃尔斯米尔岛(加拿大东北部)和斯瓦尔巴群岛被动大陆边缘的演化 - 实地工作和采样
  • 批准号:
    92281131
  • 财政年份:
    2008
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Thermochronological and structural investigation accompanying LEGENDS: I - The morpho-tectonic evolution of Sri Lanka
传说中的热年代学和结构调查:I - 斯里兰卡的地貌构造演化
  • 批准号:
    16174513
  • 财政年份:
    2006
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Quantification of the long-term landscape evolution of northern Victoria Land
维多利亚北部土地长期景观演变的量化
  • 批准号:
    5433463
  • 财政年份:
    2004
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
The long-term landscape evolution of the Lambert Rift - An integrated thermochronological approach
兰伯特裂谷的长期景观演化——一种综合的热年代学方法
  • 批准号:
    5325856
  • 财政年份:
    2003
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Quantifizierung der langfristigen topographischen Geschichte Nordviktorialands
量化维多利亚州北部的长期地形历史
  • 批准号:
    5226070
  • 财政年份:
    2000
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Exploring the hidden underbelly – tectononorphic evolution of the Bellingshausen Sea sector of West Antarctica
探索西南极洲别林斯高晋海区隐藏的弱点——构造演化
  • 批准号:
    510079091
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Research Grants

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水生甲壳动物新型病原微生物-螺原体非编码RNA的鉴定与分析
  • 批准号:
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  • 批准号:
    30871628
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  • 批准号:
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相似海外基金

COLLABORATIVE RESEARCH: Site Survey for Subglacial Bedrock Exposure Dating at the Margin of the Wilkes Basin in Northern Victoria Land
合作研究:维多利亚州北部威尔克斯盆地边缘冰下基岩暴露年代测定现场调查
  • 批准号:
    1744844
  • 财政年份:
    2021
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
COLLABORATIVE RESEARCH: Site Survey for Subglacial Bedrock Exposure Dating at the Margin of the Wilkes Basin in Northern Victoria Land
合作研究:维多利亚州北部威尔克斯盆地边缘冰下基岩暴露年代测定现场调查
  • 批准号:
    1744865
  • 财政年份:
    2021
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Fire, Flood and Food: People and Landscape Change in Northern Victoria
火灾、洪水和食物:维多利亚州北部的人和景观变化
  • 批准号:
    SR200200357
  • 财政年份:
    2021
  • 资助金额:
    --
  • 项目类别:
    Special Research Initiatives
COLLABORATIVE RESEARCH: Site Survey for Subglacial Bedrock Exposure Dating at the Margin of the Wilkes Basin in Northern Victoria Land
合作研究:维多利亚州北部威尔克斯盆地边缘冰下基岩暴露年代测定现场调查
  • 批准号:
    2209537
  • 财政年份:
    2021
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    --
  • 项目类别:
    Standard Grant
COLLABORATIVE RESEARCH: Site Survey for Subglacial Bedrock Exposure Dating at the Margin of the Wilkes Basin in Northern Victoria Land
合作研究:维多利亚州北部威尔克斯盆地边缘冰下基岩暴露年代测定现场调查
  • 批准号:
    1744850
  • 财政年份:
    2021
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    --
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Geomorphic investigations of Northern Victoria Land, Antarctica
南极洲北维多利亚地貌调查
  • 批准号:
    1144224
  • 财政年份:
    2011
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Pre-survey: Magmatic evolution of the Tiger gabbroic complex (Northern Victoria Land, Antarctica): insights into the lower crust of a Cambrian immature Island Arc
预调查:虎辉长岩杂岩体的岩浆演化(南极洲北维多利亚地):深入了解寒武纪未成熟岛弧的下地壳
  • 批准号:
    130419963
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    2009
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    Infrastructure Priority Programmes
Time resolution of metamorphic-magmatic events in the Palaeozoic active margin of the northern Wilson Terrane (Ross Orogen, North Victoria Land)
威尔逊地体北部(罗斯造山带,北维多利亚地)古生代活动边缘变质岩浆事件的时间分辨率
  • 批准号:
    75425516
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Collaborative Study: Re-evaluation of the Late Paleozoic Gondwanan Ice Age in Northern Victoria Land (Antarctica) and Tasmania (Australia)
合作研究:重新评估维多利亚州北部地区(南极洲)和塔斯马尼亚州(澳大利亚)晚古生代冈瓦纳冰期
  • 批准号:
    0635537
  • 财政年份:
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Collaborative Study: Re-evaluation of the Late Paleozoic Gondwanan Ice Age in Northern Victoria Land (Antarctica) and Tasmania (Australia)
合作研究:重新评估维多利亚州北部地区(南极洲)和塔斯马尼亚州(澳大利亚)晚古生代冈瓦纳冰期
  • 批准号:
    0635540
  • 财政年份:
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