Hi Paul
Here in Texas I have found pumace on just about every beach from the Louisiana
border all the way to the Mexico border.

The average size I find is about the size of a golf ball...

I do not know of any other studies.
Leslie


> Dear Friends:
> As shell collectors, I presume that a number of you
> frequently scour the beaches of the Gulf of Mexico along the
> coasts of Texas, Louisiana, Mississippi, and further east on a
> regular basis.  Does anyone have a sense of the frequency that
> pumice washes up on the beaches on the part of the Gulf of
> Mexico that you search for shells?  I am curious what is the
> largest piece of pumice that someone has seen washed upon a
> Gulf of Mexico beach?
>
> Finally, has anyone published any study besides the citations
> listed below about drift pumice in either the Gulf of
> Mexico or Caribbean Sea?
>
> Yours,
> Paul Heinrich
> Baton Rouge, LA
> [log in to unmask]
>
> Known Citations:
>
> Bryan, W. B., 1972, Cummingtonite-Dacite Drift Pumice
> Stranded at West Palm Beach, Florida. Geological
> Society America Bulletin. vol. 83, no. 12, pp. 3745-3746.
>
> Donovan, S. K., 1999, Pumice and Pseudoplankton:
> Geological and Paleontological Implications of an Example from
> the Caribbean. Caribbean Journal of Science, vol. 35, no.
> 3-4, pp. 323–324,