Lithosphere 7
Lithosphere 7 :
The rigid upper portion of the near-surface thermal boundary layer of the Earth at temperatures below about 6500C that can store elastic energy under long-term loads. This definition may or may not agree with the seismic lithosphere, which is composed of the crust and the uppermost mantle "lid" above the low velocity layer. The lithosphere is about 100 km thick, although its thickness depends on age and heat-flow conditions (older and cooler lithosphere is thicker). At some locations the lithosphere below the crust is brittle enough to produce earthquakes by faulting, such as within subducted oceanic plates. See Lay (2002), and Mooney et al. (2002)
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