In some locations, sedimentation created sufficient pressure to convert -- to cook -- the unoxidized carbon in the organic material into oil, some of which was trapped in reservoirs.
The U.S. government has warned federal agencies in the past that pressure cookers -- airtight pots used to quickly cook or preserve foods -- have been packed with explosives and shrapnel and detonated with blasting caps.
The U.S. government has warned federal agencies in the past that pressure cookers -- air-tight pots used to quickly cook or preserve foods -- have been turned into bombs in parts of the world.
Low-multiple companies cook the books, too, but young, hot companies face pressure to justify their lofty multiples and often have less-well-developed internal controls.
Of the two England batsmen who began this match under pressure to perform, Kevin Pietersen had a good result in reaching 36 not out, while Alastair Cook - who played a poor shot and fell for 17 - did not.