yesterday's photo, you can see that the surrounding sediment was overall fairly course and poorly sorted. So the current must've been pretty brisk. But that same photo would indicate we're not too far offshore. If that were the case, the coarser gravel wouldn't have reached this far. So the "coal" in this case was probably a waterlogged chunk of wood that sunk and got mixed in with the sedimentary pile.
Photo unmodified. March 9, 2012. FlashEarth location. (This is probably accurate to within 10-20 miles. Sorry, no clue.)
Is This Your Hat?
3 years ago