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Limestone layers form in flat layers at the bottom
of a shallow sea. These gray layers of limestone are
exposed in the Mojave Desert, pointing up at an angle
from the flat desert floor. What story does this rock
tell about the past? Which layers do you think are the
oldest?
! Examine the photograph to see the tilted layers of
limestone. Try to imagine the processes responsible
for tilting sedimentary layers. Click the photograph
to see an animation.
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