The first of the three links at #20 is fascinating...but lengthy history....of the Naval programs .
And the observation ...not summarized that well by the Author...that the current theory...plate Tectonics... had some problems based on what he was seeing by observation....
Suggest you start with the 2nd and 3rd links.
Oh well. Guess I have no choice but to walk to the refrig and take my brain out of cold storage for a few hours. I had big plans of laying low tonight. heheh.