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Morphology of Reversal Transition Fields

Morphology of Reversal Transition Fields
反转跃迁场的形态
批准号:
9814965
负责人:
Michael Fuller
金额:
$4.53万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1999
资助国家:
美国
项目状态:
已结题
起止时间:
1999-04-15 至 2003-09-30

项目摘要

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中文摘要
翻译
PI建议测试ODP先进活塞取心(APC)岩心反转记录的可靠性。这是一个巨大的潜在储层的反转记录,但有反复的建议,这些沉积记录是异常的,不能依赖。第一个目标是测试径向套印,使用偏离中心样本之间的比较以及特定反转的存档和工作半记录之间的比较。第二阶段将是通过在接近反转的正剖面和反转剖面中测试反极性来寻找套印。最后,单个过渡样品将进行AF和热退磁,并进行主成分分析。磁化率的各向异性和非迟滞剩余量将用于检查磁性织物对记录方向的混淆效应。为了确定反转的相对强度,将通过磁化率、非滞后剩余物和饱和等温剩余物进行归一化。这项工作的结果将是一套特定反转记录的文件测试,可广泛用于评估ODP沉积物记录的保真度。结果还将对ODP岩心相对强度记录的保真度这一重要问题产生影响。
英文摘要
9814965 Fuller The PI proposes to test the reliability of records of reversals from ODP advanced piston coring (APC) cores. This is an enormous potential reservoir of reversals records, but there have been repeated suggestions that these sediment records are anomalous and cannot be relied upon. The first target will be to test for radial overprints using comparison between off center samples and between archive and working half records of particular reversals. The second stage will be to look for overprints by testing for antipodality in normal and reversed sections close to reversals. Finally, the individual transitional samples will be subjected to AF and thermal demagnetization with principal component analysis. Anisotropy of susceptibility and anhysteretic remanence will be used to check against the confounding effect of magnetic fabric on the directions recorded. To determine relative intensity across the reversals, normalization will be by susceptibility, anhysteretic remanence and saturation isothernal remanence. The result of this work will be a set of documented tests of particular reversal records that can be widely used to assess the fidelity of ODP sediment records. The results will also bear upon the important question of the fidelity of relative intensity records from ODP cores.
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会议论文
Collaborative research: Testing a new empirical law relating the efficiency of thermoremanent magnetization (TRM) and saturation magnetization (Ms)
  • 批准号:
    0609577
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $25.0万
  • 财政年份:
    2006
  • 负责人:
    Michael Fuller
  • 依托单位:
SGER: Rock Magnetism and Paleomagnetism of Corals From Pacific Volcanic Islands: A Feasability Study
  • 批准号:
    0441788
  • 项目类别:
    Standard Grant
  • 资助金额:
    $0.0万
  • 财政年份:
    2005
  • 负责人:
    Michael Fuller
  • 依托单位:
Planning Visit for Cooperative Research Program- Paleomagnetism of Kalimantan, Indonesia
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