Assertion: glacier's ice | /r/HasProperty | approximated by a density of 900 kg/m3
Facets:
Source sentences:
text: Ice can be approximated by a density of 900 kg/m3, firn has a density of about 600 kg/m3 but it must be remembered that the firn is converted to glacier ice by metamorphic processes so that the density changes with depth from 600 to 900 kg/m3.