Assertion: methane | /r/AtLocation | methane hydrates
Facets:
value: for later release
type: PURPOSE
Source sentences:
text: On the other hand, methane could have been formed by magmatic processes or stored in methane hydrates for later release to the atmosphere.
text: If microorganisms existed on Mars only in the past during its (possible) warm and wet phase and produced methane, that methane could have been stored in methane hydrates for later release, as discussed above.