Assertion: magma's gas | /r/HasAspect | time
Facets:
Source sentences:
text: For silicic magmas to erupt effusively, the ascent rate must be 10 − 5 {\displaystyle 10^{-5}} to 10 − 2 {\displaystyle 10^{-2}} m/s, with permeable conduit walls, so that gas has time to exsolve and dissipate into the surrounding rock.
text: If magma moves slowly toward the surface, gases in the magma have more time to escape.