Does crude oil come from fossils, is it produced abioticly or by some other mechanism?

Question

Oil and Coal are called "fossil fuels". It is pretty clear where coal comes from. there are Peat bogs, then brown coal, then bituminous coal, then anthricite coal. There seems to be a pretty definate relationship.

Oil fields are found in Alaska, the North Sea, Gulf of Mexico, Persian Gulf, Venezuala, California, Canada. Your answer should include why the oil accumulates at these locations?

I would perfer serious answers from informed people.

Thank you.

Answer 1

i think they are produced geologically...it is not biotically because no living thing changes the dead plant matter into fossil fuels....the dead material is preserved in these low oxygen environments (depleted) and then they are buried deep in the crust, heated and pressurized to a specific point of where fossil fuels are formed.....so it is definitly abiotically and since these are all geological processes i would say geologically created

why oil accumulates at those spots is that there used to be these bogs in those areas millions of years ago in the Carboniferous. At that time there were a lot of swamps and where the coal beds are today used to be a swamp where all that matter died but didnt decompose

Answer 2

Oil is currently believed to be formed from organic remains by bacterial action under particular conditions.

Coal cannot move very far as it is being formed, but oil can, and it does. In principle, it all eventually moves back to the surface and returns to to the biosphere. In practice, there are geological formations call "traps" of impermeable rock which oil cannot get through, therefore it collects in the porous rock underneath and stays there until drilled for. But under various pressures it can move a great distance almost horizontally before that, so there is no relation between where it is formed and where it is found.

Answer 3

Oil is the remnants of diatoms and other marine algae organisms that stored their energy as waxes (and not starches the way many terrestrial plants do). These are found in "fossil sea floors." Indeed, for some of the first oil fields found, the majority of the oil was located beneath "salt domes."

Answer 4

It can be said, very loosly, that oil comes from fosslized swamps. The plant matter decays through a number of processes, including biotic.

Answer 5

are we , the people , fossils ? i mean doesnt poop , or the gasses released therefrom , burn ? why do we have sewage " treatment " plants anyways ?

Answer 6

yes from when I watch TV