The ingrained theory (in the West) that crude oil and the great...

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    The ingrained theory (in the West) that crude oil and the great preponderance of natural hydrocarbon gases have
    formed through reworking of biological debris is presently being challenged.

    Increasing evidence suggests that the major hydrocarbon provinces are strongly aligned to the global dynamo-tectonic system.

    For example, the Middle East oil and gas fields, constituting a belt stretching from Oman, through the Persian Gulf and Iraq, to south-eastern Turkey, can be regarded as delineating a deep crust-cutting shear zone along which unusual amounts of unoxidized hydrocarbons have been seeping up from the mantle, notably since Alpine time.

    In fact, the Saudi Arabian oil fields produce from sedimentary rocks with no apparent proximal ‘source rocks’; the production is experiencing little drawdown from virgin pressures, despite decades of high capacity withdrawals.

    Furthermore, oil inclusions are reported from volcanic rocks, even in mid-ocean position, and hydrocarbon basins with production from igneous and metamorphic rock reservoirs are found in many regions of the world.

    Any realistic theory of the Earth has to explain the close association of tectonics with major masses of salts and water, large quantities of natural gases and oil, and volcanic processes. Can it be that buoyant volatiles from the deep interior provide the engine for the dynamic Earth, playing a fundamental role for the geological history of the crust?

    By Professor Karsten Storetvedt, Norway
    New Concepts in Global Tectonics Symposium
    Oslo - August 2008
 
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