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Flashcards in Mt Nyrigongo Deck (14)
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1

What type of volcano is it ?

Active stratovolcano located in African Rift Valley.

2

What PB is it associated with?

Constructive.
2 continental plates pull apart.
Nubian - west.
Somali - east.

3

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

4

What type of magma?

Basaltic
Low viscous
Low silica
Not explosive
Runny

5

What did it record on VEI

1
Not explosive

6

What happens as the plates separate?

Magma continuously moves from mantle

7

Crater?

250 m deep
2 km wide

8

Largest lava lake

Xxxxxx

9

How fast does lava flow ?

90 km hr

10

How many eruptions ?

Since 1882 , 34

11

Gas emissions ?

Co2
From fissure.

12

What also accompanied volcano?

Earthquakes 5 on R scale

13

How much did lava flows destroy ?

1/3 goma
Runway

14

How many deaths

147
Gases
Contaminated water