首页> 外文学位 >Controls on changes in trend, vergence and structural style in the La Biche Range, southern Franklin Mountains, Northwest and Yukon Territories.
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Controls on changes in trend, vergence and structural style in the La Biche Range, southern Franklin Mountains, Northwest and Yukon Territories.

机译:控制La Biche山脉,富兰克林山脉南部,西北和育空地区的趋势,收敛和结构样式。

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摘要

The La Biche structure, located in the southern Franklin Mountains, displays a marked change in trend and geometry of folds and related faults along strike. The structural interpretation delineates two distinctly different fault propagation folds meeting at approximately 60°40'N latitude. South of 60°40'N, the range is characterized by a southwest-verging fault-propagation fold and to the north, the vergence of structures is eastward. The change in structural character is a result of a high in the Proterozoic strata deepening and flattening northward. In the southern portion of the study area, a high in the Proterozoic indirectly controls the trend and vergence of structures. Northward, structures were free to propagate, without basement influence, toward the foreland. The regional implication is that the change in trend and character of structures at 60°40'N can be explained by relief on the top surface of the Proterozoic; crustal-scale wrench faulting is not necessary.
机译:位于富兰克林山脉南部的La Biche结构沿走向表现出褶皱和相关断层的趋势和几何形状的明显变化。结构解释描绘了两个截然不同的断层传播褶皱,在大约60°40'N的纬度相遇。在60°40'N以南,该范围的特征是一个向西南延伸的断层传播褶皱,而在北部,该构造的聚散度是向东的。结构特征的变化是元古代向北加深和变平的结果。在研究区的南部,元古代的高位间接控制了结构的趋势和收敛性。向北,建筑物可以自由地向前陆传播,而不受地下室的影响。区域意义是,可以通过在元古代的顶面上起伏来解释60°40'N时结构的趋势和特征的变化。地壳扳手没有必要发生故障。

著录项

  • 作者

    Fraser, Ryan Christopher.;

  • 作者单位

    University of Calgary (Canada).;

  • 授予单位 University of Calgary (Canada).;
  • 学科 Geology.
  • 学位 M.Sc.
  • 年度 2002
  • 页码 109 p.
  • 总页数 109
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地质学;
  • 关键词

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