Pages in this set

Page 1

Preview of page 1
Helena Bonici Geography 21/06/2011
13EA2 Plate Tectonics



VOLCANOES




The form, or shape, of a volcano is governed by the composition of erupting
magma and type of erupted products (volcaniclastic products of various kinds such as pyroclastic and
autoclastic fragments or effusive lava). Their shapes are determined in large part by…

Page 2

Preview of page 2
Helena Bonici Geography 21/06/2011
13EA2 Plate Tectonics



Type of lava flow types:
1. Low water, low silica - runny lava flows (not viscous)
2. Low water, high silica (very viscous) - pasty lava - often building domes
3. High water, low silica (not viscous) - fountain of runny lava
4.…

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »