an eruption, may also be a factor in some of the higher temperature eruptions. For example, the leading edge of the Prometheus flow field moved 75 to 95 kilometres (47 to 59 mi) between observations by Voyager in 1979 and Galileo in 1996. In many cases, active lava breakouts flow out onto the surface at locations tens to hundreds of kilometres from the source vent, with low amounts of thermal emission observed between it and the breakout. A b Spencer,. 4 19 In the Earth, these internal heat sources drive mantle convection, which in turn causes volcanism through plate tectonics. Notre site de rencontre sexe est conçu pour prendre contact rapidement avec les milliers de partenaires potentiels de votre département. 40 For some lava lakes, like the one at Pele, this occurs continuously, making Pele one of the brightest emitters of heat in the near-infrared spectrum. "Io: An Intense Brightening Near 5 Micrometers".