As this question relates to this topic.....
What we are salvaging is the scattered remains of what is
left

after 350 or so years
after the initial wreck, fires, and deterioration from the
ravages of time, surf zones and the seas.
This happens pretty quick in a surf zone - as water is incompressable
and there is nothing much bigger than the oceans....
Lucky for us they didn't have metal detectors back then and as soon
as the shifting sands of time buried what ever remained
It was out of their reach
Oh by the way its not even archeology.... its more like anthropology
as it is highly unlikely that the relationship of one artifact to
another is going to give up anything other than maybe a trail to other artifacts.
The artifacts stimulate public interest in the past and the subsequent educational
opportunity is an anthropological event!
Does this answer your question?
Oh by the way.... We will be out today doing some anthropology

you can check out the live web cam at:
http://jupitercoins.com