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both source rocks and reservoir rocks are highly porous. however, the permeabilty of a reservoir rock distinguishes it from a source rock.
Baishou rock is a metamorphic rock. This particular type of rock tends to transform when it is put under any source of heat or source of pressure.
Hydrocarbonous rock
Morocco is a major source of rock phosphate, but not the sole source.
Source rock; reservoir rock; cap rock