Volcanic Rock Helps Predict Speed of Future Lava Flow
Clip: Season 45 Episode 10 | 1m 33s
Silica is a key component of sand but also of lava. The less there is, the more fluid the lava, and the faster it flows. Nyiragongo has some of the lowest-silica-content-lava on the planet, but there’s another clue to the lava’s speed—and it’s not good news.
Aired: 09/19/18Video has closed captioning.