Frankly, given the way carbon chains can self assemble in the right conditions without extreme pressure, heat and extreme pressure in the upper mantle seem a pretty good candidate for enabling that kind of reaction.
Sorry, complex hydrocarbons are “irreducibly complex”. They could not possibly have formed naturally. They are clearly the work of the Flying Spaghetti Monster.
17 posted on 07/28/2009 11:48:08 PM PDT by John Locke