Fossil fuel and natural resources

February 19, Fossil Fuels Written by Greentumble Editorial Team Fossil fuels, as their very name suggests, are made out of fossils. While this may seem simple enough in terms of explaining how fossil fuels came about, the actual process is far more complicated and — for lack of a better word — time-intensive.

Fossil fuel and natural resources

Written and designed by Roy Shepherd. Special thanks to my wonderful wife Lucinda Shepherd, friend Robert Randell and various experts for their support.

What are Fossil Fuels?

In ancient times

An oil rig - pumps oil from deep underground. A coal mine - large quarry diggers carve out the resource.

Fossil fuel and natural resources

What is a fossil fuel? Fossil fuels are hydrocarbons such as coal, oil and natural gas, sourced from the organic remains of prehistoric organisms.

When these fuels are burnt, the energy released can be harnessed to produce electricity, power vehicles, heat homes, cook food and much more.

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They are also used in the production of important materials such as plastics. In order to answer this question, we must first distinguish oil and gas from Fossil fuel and natural resources.

Generally speaking, oil and gas are formed from the organic remains of marine organisms which become entrained within sea-floor sediments. Coal, by contrast, is typically formed in non-marine settings from the remains of land vegetation. Oil and gas formation begins with the accumulation of organics on the sea-floor; these are the dead remains of organisms living in the water column, such as microscopic plankton, which rain down on the sea floor below.

This will only occur in rather unusual settings, where the sea floor is stagnant such that there is no oxygen present to break the organic remains down and no sea-floor dwelling organisms present that might feed on the organics.

A high sediment accumulation rate of may also help to bury the organics before the action of decay can break them down. As the sediment pile becomes deeper the organics within it are subjected to heat and pressure which leads to formation of oil and then gas.

Fossil fuel and natural resources

For oil and gas extraction, it is important that the source rock is not 'over-cooked' or the hydrocarbons will be destroyed. There must be suitable reservoir-rock, such as a porous sandstone, into which the hydrocarbons can migrate and accumulate.

This must be overlain by an impervious cap-rock, such as a clay, which prevents the hydrocarbons from escaping to the surface.

Finally, the geometry of the reservoir and cap-rock bodies must be such that the hydrocarbons become trapped; usually folding will suffice.

Diagram explaining the generation and entrapment of oil and gas. Fossil ferns within a sheet of coal. Coal typically forms on land from vegetation in lowland, swampy, mire environments. Stagnant waterlogged soil prevents the accumulated plant debris from breaking down.

The recognisable remains of plants are often visible within coals and associated shales, confirming their plant-origin. The picture above shows a piece of coal containing a network of fossilised fern leaves - clear evidence that it was formed from vegetable remains.

More recent peat deposits.All fossil fuels are nonrenewable, but not all nonrenewable energy sources are fossil fuels. Coal, crude oil, and natural gas are all considered fossil fuels because they were formed from the buried remains of plants and animals that lived millions of years ago.

Uranium ore, a solid, is mined and converted to a fuel used at nuclear power plants. Study warns of stranded fossil fuel assets as clean energy technology soars “There is no walking out from the energy transition.”.

A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing energy originating in ancient photosynthesis.

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The age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes exceeds million years.

Fossil fuels are formed when anaerobic breakdown of dead organisms occur over millions of years. The breakdown of these natural resources give us fossil fuels―coal, oil, .

Fossil fuels are hydrocarbons, primarily coal, fuel oil or natural gas, formed from the remains of dead plants and animals. In common dialogue, the term fossil fuel also includes hydrocarbon. The Keystone XL Pipeline, which Trump just advanced, will carry the dirtiest fossil fuel on the planet.

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