The Flood

FYI
Sapropel: An unconsolidated,jellylike ooze or sludge composed of plant remains, most often algae, macerating and putrefying in an anaerobic environment on the shallow bottoms of lakes and seas.
(from Glossary of Geology 4th edition, J.A. Jackson editor, American Geological Institute)

That was a response to Lithodid-Man who had mentioned he had never heard of sapropel. It's a word which shows up in petroleum geology in particular as it may be a source of oil and natural gas.Don't know who Carl Baugh is.