Eric:
This is my essential question: how do we partition pressure into
pressure due to overlying rocks and tectonic overpressure? If we
can independently estimate the depth, we can then calculate the
pressure due to overlying rocks and therefore estimate possible
tectonic overpressure. That is why I posted the question.
Unless we consider this partitioning, the overpressure question is
never raised in a P-T-t path interpretation.
Dazhi
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