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Paleogeography of the Carolina Terrane: Constraints from Detrital Zircon Ages

Paleogeography of the Carolina Terrane: Constraints from Detrital Zircon Ages
卡罗莱纳地体的古地理:来自碎屑锆石年龄的限制
批准号:
9909120
负责人:
Scott Samson
金额:
$10.53万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2000
资助国家:
美国
项目状态:
已结题
起止时间:
2000-01-01 至 2002-12-31

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中文摘要
翻译
9909120萨姆森卡罗莱纳的古地理位置,包括其增生到劳伦提斯的时间,都没有受到很好的限制。 本研究将确定卡罗莱纳造山带内碎屑沉积岩中碎屑锆石的年龄分布,并将这些年龄组与各造山带的已知年龄进行比较。 碎屑锆石从三个不同的年龄,包括新元古代,寒武纪和奥陶纪的砂岩,将进行检查,以确定是否发生任何根本性的变化,年龄分布可以与不同的古地理位置。 来自奥陶纪砂岩的碎屑锆石的年龄将被用来检验以下假设:卡罗莱纳岩在中奥陶纪与东部劳伦大陆边缘有密切的空间联系,并在奥陶纪末增生到劳伦大陆。
英文摘要
9909120SamsonThe paleogeographic positions of the Carolina terrane, including the timing of its accretion to Laurentia, are poorly constrained. This study will determine the age distribution of detrital zircons from clastic sedimentary rocks within the Carolina terrane and compare the age groups with known ages of orogenic belts from various cratons. Detrital zircons from sandstones of three different ages, including Neoproterozoic, Cambrian, and Ordovician, will be examined to determine if any fundamental changes in age distributions occur that can be correlated to different paleogeographic positions. The ages of detrital zircons from Ordovician sandstones will be used to test the hypothesis that the Carolina terrane was in close spatial association with the eastern Laurentian margin in mid-Ordovician time and had accreted to Laurentia by the end of the Ordovician.
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会议论文
Collaborative Research: "Double-Double Dating" of Detrital Monazite and Detrital Zircon: Quantifying Sediment Recycling in Tectonic Studies
  • 批准号:
    1624716
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $19.93万
  • 财政年份:
    2016
  • 负责人:
    Scott Samson
  • 依托单位:
Collaborative Research: Use and Abuse of Zircon Thermometry - Integrating Modeling, Trace Element Chemistry and Isotopes to Maximize the Use, Limit the Abuse
  • 批准号:
    1447611
  • 项目类别:
    Standard Grant
  • 资助金额:
    $13.9万
  • 财政年份:
    2015
  • 负责人:
    Scott Samson
  • 依托单位:
MRI: ACQUISITION OF A NEW GENERATION THERMAL IONIZATION MASS SPECTROMETER
  • 批准号:
    0922710
  • 项目类别:
    Standard Grant
  • 资助金额:
    $50.4万
  • 财政年份:
    2009
  • 负责人:
    Scott Samson
  • 依托单位:
Collaborative Research: Identifying the Limitations and Expanding the Utility of Detrital Mineral U-Pb Geochronology to Tectonic Studies
  • 批准号:
    0635643
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $14.98万
  • 财政年份:
    2007
  • 负责人:
    Scott Samson
  • 依托单位:
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