volcano stuff innit

Question 1

What are the 3 types of Lava?

Answer 1

Basic, Andesitic and Rhyolitic

Question 2

Name 3 primary affects of Volcanoes

Answer 2

Ash clouds, Tephra, Lava

Question 3

Name 4 secondary affects of Volcanoes

Answer 3

Tsunamis, epidemic diseases, Famine, long term ash clouds

Question 4

Define ridge push

Answer 4

Gravitational force that causes a plate to move away from the crest of an ocean ridge, and into a subduction zone

Question 5

Define slab pull

Answer 5

Older, denser tectonic plates sink into the mantle at subduction zones

Question 6

How does Gravitational sliding occur

Answer 6

As a result of the rigid lithosphere sliding down the hot, raised asthenosphere below mid-ocean ridges. Slides down forming a raised cone shape

Question 7

Explain the process of Seafloor spreading

Answer 7

Process in which slabs of the earths lithosphere pulls apart from each other as a result of convection currents.

Question 8

What lava type is the most explosive

Answer 8

Rhyolitic

Question 9

How do hot spots occur

Answer 9

An area on Earth over a mantle plume where magma is hotter than surrounding magma. The magma plume causes melting and thinning of the rocky crust and widespread volcanic activity

Question 10

Name an example of a hotspot

Answer 10

Volcanoes within Hawaii

Question 11

What is your volcanic case study (older)

Answer 11

Montserrat (however relate to modern as is too outdated)

Question 12

What is your other volcanic case study (new)

Answer 12

Iceland E17

Question 13

How much were the damages in the Icelandic volcano

Answer 13

£3bn

Question 14

How many flights were cancelled in the Icelandic volcano eruption

Answer 14

estimated 100,000+

Question 15

How many people died in the 1997 montserrat eruption

Answer 15

19 people

Question 16

What volcanoes are formed at destructive plate boundaries

Answer 16

Island arc volcanoes

Question 17

Why are volcanoes hard to mitigate against

Answer 17

Almost impossible to contain ash clouds and redirect fast flowing lava

Question 18

What makes the Primary impacts hard to mitigate against specifically

Answer 18

Volcanoes can often erupt very quick and without warning giving little to no response time.

Question 19

In what case was a volcanic event successfully mitigated against

Answer 19

In iceland on one occasion the lava flow was stopped and redirected, however this has never been done since

Question 20

When?

Answer 20

When did I ask