Assertion: titanium | /r/AtLocation | lower concentrations
Facets:
value: in ultrabasic rocks
type: LOCATION
Source sentences:
text: The highest concentrations of titanium are found in basic rocks of the basaltic layer (0.9 percent); lower concentrations are the rule in rocks of the granitic layer (0.23 percent), and titanium occurs in even lower concentrations in ultrabasic rocks (0.03 percent).