The nature of the lithosphere-asthenosphere boundary (LAB)

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• 作者：牛耀龄
• 会议时间：2011-11-01
• 作者单位：School of Earth Science, Lanzhou University Department of Earth Sciences, Durham University
• 母体文献：2011年全国岩石学与地球动力学研讨会论文集
• 会议名称：2011年全国岩石学与地球动力学研讨会
• 会议地点：西安
• 主办单位：中国地质学会
• 语种：chi
• 分类号：O69;U4

摘要

@@ The bottom of the seismic low-velocity zone (LVZ) beneath the ocean basins is at about 220 km depth,whereas the top is determined by the thickness of the lithospheric lid. Conductive heat loss or thermal contractioncan explain both the ocean depth (first order) and lithosphere thickness (L) as a function oflithosphere age (i.e., L/Age, or the half-space model (HSM》.