Abstract: Fundamental materials comprising the earth contain abundant hydrocarbons and carbonide (e. g. H₂, CH₄, C₂H₆) when they condensed at initial low temperature, which then were absorbed and trapped within core, mantle, and crust. Various types of plate tectonic belts resulting from plate tectonic cycle formed super lithosphere faulting system lithosphere faulting system, super crust faulting system, crust faulting system, basement faulting system, and caprock faulting system. Moreover, collision of celestial bodies with the earth can produce sizevarying fracture systems in the earth at different stages of the earth's evolution. These systems then act as a passageway for migration of deep hydrocarbons of inorganic origin from high-temperature, high-pressure zones into low-temperature?low-pressure zones. Complex polymerization and chemical reaction of these simple hydrocarbons in the process of migration can generate various heavy-molecular-weight hydrocarbon. On the other hand, large amounts of water released from basic rocks and super basic rocks at high temperature and pressure can react with carbonide to form hydrocarbon. When good traps and seals were encountered, these resulting hydrocarbons could be gathered into the reservoir of different types. Based on the geologic and geochemical conditions of different plate tectonic belts, inorganic origin model can be classified into five categories, i. e. cosmogenic gas, cosmogenic oil, crust-mantle degassification, plate tectonic belt, and deep crust-mantle. Furthermore, plate tectonic cycles match well with the geologic and geochemical conditions of belts of inorganic hydrocarbon origin, then seven kinds of combinations of inorganic models can also be formed. This theory will extend oil and gas exploration objectives to the Proterozoic, Archaeozoic, and deep orogenic belt, assumed on hydrocarbon potential in organic theory, as well as deep for mation below the so-called "deal line of natural gas".

Key words: Petroleum, Natural gas, Inorganic origin, Plate tectonics, Fault belt, Subsiding belt