J
*Journeyman*
Yeah...but what was 'unleashed' with deep ploughing of the old seabed? Was it the mineral content or sedimented/layered organic matter or a combination of both? Opening up land based hardpan is not the same as seabed that's been covered for like many, many years by the ocean.how about a newer explanation (that doesn't make it right). Here goes. It's Dr. Ingham: