My non-scientist
thoughts are that if Pangia
was still together
in Noah's time then
it's easier to picture
a flood affecting
the entire world and
the subsequent moves apart
(in Peleg's life time?)
would have confounded
the "record" of the flood with
the breakup record.
If you are interested in this you should study geology.
Learning how the evidence is gathered and analyzed takes time and effort, but it's worth it.