Geologic time is so different from the time that influences our
lives. Geologic time refers to long periods of time measured in millions
to billions or years in the rock record. However, geologic time can also
record events that might be only a few hours or minutes in duration,
like a catastrophe. Throughout geologic time, volcanic eruptions have
caused ash to mix with snow causing an avalanche of mud. This wall of
mud can cascade over towns and bury all forms of live. This event would
be recorded in the rock. The bodies of organisms might not be there when
uncovered by future generations, but the mud that accumulated will turn
into mudstone. You can sometimes accumulate tens of meters of material
in less than a day’s work. Time is odd, and it is the job of a
geologist to unearth the truth.
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Avalanche
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