Assertion: horizon's matter | /r/CapableOf | lie exposed on the land surface
Facets:
value: above the a horizon
type: LOCATION
Source sentences:
text: Litter and decomposed organic matter (for example, plant and animal remains) that typically lie exposed on the land surface above the A horizon are given the designation O horizon, whereas the layer immediately below an A horizon that has been extensively leached (that is, slowly washed of certain contents by the action of percolating water) is given the separate designation E horizon, or zone of eluviation (from Latin ex, “out,” and lavere,