Combustibile fossile

Combustibiles fossile es combustibiles formate per processos natural tal como decomposition anaerobic de inhumate morte organismos. 
Le etate del organismos e lor resultante combustibiles fossile es typicamente milliones de annos, e interdum excede 650 million annos.
Paul Mann, Lisa Gahagan, and Mark B. Gordon, "Tectonic setting of the world's giant oil and gas fields," in Michel T. Halbouty (ed.) Giant Oil and Gas Fields of the Decade, 1990-1999, Tulsa, Okla.: American Association of Petroleum Geologists, p.50, accessed 22 June 2009. 
Le combustibiles fossile, que contine alte percentages de carbon elemental, include carbon (petra), petroleo, e gas natural. 
Combustibiles fossile extende ab materiales volatile con rationes basse de carbon a hydrogeno como methano, 
a petroleo liquide, a materiales nonvolatile composite de quasi pur carbon, como anthracite. 
Methano pote esser trovate in campos hydrocarbonic, sol, associate con petroleo, o in le forma de hydratos de methano. 
Il es acceptate generalmente que illo formava ab le restos fossilisate de plantas morte 

per exposition a calor e pression in le crusta del Terra durante milliones de annos.

Iste theoria biogenic esseva primo introducite per Georg Agricola in 1556 e depost per Mikhail Lomonosov in le 18ve seculo.

Il esseva estimate per le Energy Information Administration que in 2007 fontes primari de energia consistite de petroleo 36,0%, carbon 27,4%, gas natural 23,0%, 
amontar a un 86,4% portion pro combustibiles fossile in primari consumption de energia in le mundo.
http://tonto.eia.doe.gov/cfapps/ipdbproject/IEDIndex3.cfm 
Fontes nonfossile in 2006 includite hydroelectric 6,3%, nuclear 8,5%, e alteres (geothermal, 
solar, mareas, vento, ligno, residuos) amontar a 0,9 pro cento.
http://www.eia.doe.gov/iea/overview.html 
Consumption mundial de energia cresceva a circa 2,3% per anno.

 Vide etiam 
 Energia
 Ressources nonrenovabile
 Petroleo

 Referentias 

Categoria:Conversion energic