Formation and mining of oil

Numéro d’image : 11890121
Formation and mining of oil
Formation and mining of oil. Cutaway artwork sequence showing the formation of oil (left three panels) and its mining (panel at right). Oil is a fossil fuel,rich in hydrocarbons,which forms over millions of years from organic remains. It is thought that the process starts when large amounts of plankton debris forms a mud on the seabed rich in organic material (upper left). Over millions of years,layers of sediment build up on top of this organic layer,compressing it and heating it until it turns into oil (centre left). The oil is lighter than the surrounding rocks and filters upwards as the layers buckle under tectonic forces (centre right),accumulating in a reservoir from where a drilling platform mines it (lower right)
Licence : Droits gérés
Crédit: Science Photo Library / Hks, Gary
Taille de l’image : 4241 px × 2831 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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