Assertion: crust's surface | /r/CapableOf | consist iron oxide
Facets:
value: of a hardened accumulation of silica
type: OTHER
value: in varying proportions
type: OTHER
Source sentences:
text: Duricrust, surface or near-surface of the Earth consisting of a hardened accumulation of silica (SiO 2 ), alumina (Al 2 O 3 ), and iron oxide (Fe 2 O 3 ), in varying proportions.
text: Duricrust, surface or near-surface of the Earth consisting of a hardened accumulation of silica (SiO 2 ), alumina (Al 2 O 3 ), and iron oxide (Fe 2 O 3 ), in varying proportions.