Question

The average thickness of the lithosphere is about ________________ km.
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Answer 1

Answer:

40km to 280km

Explanation:

Oceanic lithosphere is typically about 50–140 km thick(but beneath the mid-ocean ridges is no thicker than the crust), while continental lithosphere has a range in thickness from about 40 km to perhaps 280 km; the upper ~30 to ~50 km of typical continental lithosphere is crust.