RE:Turntotheright...Can you please tell what is your opinion All the marine strata comment was saying was that the cores that were analyzed showed the formations (i.e. strata) we're deposited in a marine environment (like a sea or ocean millions of years ago). That's pretty much exactly in line with what RECO thought.
This is good news/confirmation because most hydrocarbons are found in marine depositional environments (formations created in the places of old bodies of water). Marine life (like plankton) is where the organic matter comes from necessary to form the oil and gas via heat, pressure, and time. I don't know how common it is to have oil and gas in environments that were not once bodies of water.
I will have to defer to any geologists however regarding much more detailed questions regarding formation deposition. Geos, please feel free to add if I have missed something.