topic: volcanoes
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Topic: Volcanoes. Volcano. An opening in the crust where magma and gases erupt Form at: 1. - 2. - 3. -. Diamond Head in Hawaii. Sailors thought calcite crystals in the rocks were diamonds. - PowerPoint PPT PresentationTRANSCRIPT
Topic: VolcanoesTopic: Volcanoes
An opening in the crust where magma and gases erupt
Form at:1. -2. -3. -
VolcanoVolcano
Diamond Head in Hawaii.
Sailors thought calcite crystals in the rocks were diamonds.
Diamond Head formed as hot magma hitting ocean water, causing explosions that threw exploded magma particles (tuff) into a broad ring.
Mount St. Helens
Steep slope + loose volcanic debris + heavy
rains
Vesuvius – 79AD
Mt. Vesuvius, Italy
Hot Spots
-
(Find them on page 5 of the ESRT )
Hawaiian IslandsHawaiian Islands
Oldest Hawaiian Island: Kaui
Youngest Hawaiian Island in the Making:
Loihi
45 miles wide
FQWhat state will the Yellowstone hot spot be found
in the future?