Assertion: crust's thickness | /r/HasProperty | taken in unmeasured areas
Facets:
value: from published compilations
type: OTHER
Source sentences:
text: In these unmeasured areas, the thickness of ice, water and sediments is taken from published compilations, and the velocity structure of the crystalline crust and uppermost mantle is estimated from the statistical average of regions with a similar crustal age and tectonic setting.