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Physiology, geology and geochemistry of the Southern Explorer Ridge seafloor hydrothermal site using an integrated GIS database and three-dimensional modeling.

机译:使用集成的GIS数据库和三维建模,南部Explorer Ridge海底热液场的生理,地质和地球化学。

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摘要

Southern Explorer Ridge (SER) is an anomalously-rate shallow, intermediate spreading ridge located 200 kilometers off the west coast of Vancouver Island, Canada. It ranges in depth between 2600 and 1760 meters. For the first time, geological, geochemical and geophysical data collected from 15 cruises to SER have been assembled in a GIS format.; The distribution of published K/Ti ratios and Mg# values of basalt glass were plotted using GIS techniques. The variability of these geochemical parameters correlates with proximity to the axial dome and certain new as well as previously published structural and morphological features.; Three-dimensional modeling of Seabeam bathymetry and SeaMARC sonar data has provided enhanced visualization of SER. Physiological features make SER comparable to an elongate seamount. Specific morphological characteristics indicate that summit trough formation and evolution at SER result from non steady state processes.
机译:南部探险家岭(SER)是异常速率的浅层,中间伸展脊,位于加拿大温哥华岛西海岸200公里处。深度范围在2600至1760米之间。首次以GIS格式收集了从SER的15次航行中收集的地质,地球化学和地球物理数据。使用GIS技术绘制了公布的玄武岩K / Ti比和Mg#值的分布。这些地球化学参数的变化与轴向穹顶的接近性以及某些新的以及先前公布的结构和形态特征有关。 Seabeam测深法和SeaMARC声纳数据的三维建模提供了增强的SER可视化。生理特征使SER可以媲美细长的海山。特定的形态特征表明,SER的顶峰谷形成和演化是由非稳态过程引起的。

著录项

  • 作者单位

    University of Toronto (Canada).;

  • 授予单位 University of Toronto (Canada).;
  • 学科 Geology.; Geophysics.; Geochemistry.
  • 学位 M.Sc.
  • 年度 2001
  • 页码 95 p.
  • 总页数 95
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地质学;地球物理学;地质学;
  • 关键词

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