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Mitchell Caverns, California
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These pages are about Mitchell Caverns,
Providence Mountains State Recreation
Area, in the Mojave National Preserve,
southeast California.
Of special interest, to me, was the fact
that the cave was closed for five months
for repairs after a hefty earthquake
in 1999.
There are many web sites that have
this earthquake, the 16 October 1999
Hector Mine quake, magnitude 7.1,
with 46 miles of ground breakage. The
first one
at left is a general site that has
some of the best plain-language text
and clearest illustrations I have seen
on the subject.
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The Providence Mountains are rhyolite rock
masses reaching to just over 7,000 feet. Mitchell
Caverns sit in the limestones through which the
rhyolite
magma rose, on the eastern flank of the
mountain range, at 4,300 feet elevation. Rhyolite
is a volcanic rock that comes from magma rising
but not erupting.
Limestones are typically formed
on the bottoms of shallow seas, these are about
250-million years old.
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Several web sites
have this cave as part
of their content. Three
of these can be reached
through the cave 1,
2 and 3 buttons above.
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