Comparing a bedrock map with the landslide map, one can discriminate between rock units associated with existing landslides and those devoid or largely free of landslide activity.
(one; can discriminate; between rock units) (rock units; associated; with existing landslides and those devoid or largely free of landslide activity)
one rock units
can discriminate associated
between rock units
with existing landslides and those devoid or largely free of landslide activity