Trap boundaries define the limits of the trap and usually consist of (1) boundaries between solids, such as the contact between reservoir and seal, or (2) boundaries between fluids, such as oil–water or gas–water contacts. Temperature can also control a trap boundary as displayed by [http://www.oilgae.com/ref/glos/gas_hydrates.html gas hydrate] traps.
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Trap boundaries define the limits of the trap and usually consist of (1) boundaries between solids, such as the contact between reservoir and seal, or (2) boundaries between fluids, such as oil–water or gas–water contacts. Temperature can also control a trap boundary as displayed by [http://www.oilgae.com/ref/glos/gas_hydrates.html gas hydrate] traps. See [[Gas hydrates]].)