Flashcards in Mt Nyrigongo Deck (14)
What type of volcano is it ?
Active stratovolcano located in African Rift Valley.
What PB is it associated with?
2 continental plates pull apart.
Nubian - west.
Somali - east.
Describe how Rift Valley forms?
Because plates are similar density and Buoyancy no subduction occurs.
2 plates move apart and brittle crust fractures and areas of crust drop down into parallel faults - Rift Valley .
As the crust thins due to tension magma forces its ways up
What type of magma?
What did it record on VEI
What happens as the plates separate?
Magma continuously moves from mantle
250 m deep
2 km wide
Largest lava lake
How fast does lava flow ?
90 km hr
How many eruptions ?
Since 1882 , 34
Gas emissions ?
What also accompanied volcano?
Earthquakes 5 on R scale
How much did lava flows destroy ?