ATM 200 - Natural
Disasters
Ch 6 –
Volcanic Eruptions:
Plate
Tectonics and Magmas
Monday, 19
October 2015
Daily Announcements:
1) Exam #2 is Monday, Nov. 2. (Bring #2 pencils, pencil sharpener, eraser.)
2) Exam #2: Ch. 2, 3, 4, 5, 6, 7, homework and lecture
material (videos too!)
3) Sub-Topic Voting open
from today through Monday, Oct. 26.
Song #1: “Ring
of Fire” by Johnny Cash
Song #2: “Volcano”
by Jimmy Buffett
Text Source Today: Chapter 6 (p. 144-156)
Notes Template
·
Plate Tectonics and
Volcanoes PDF DOC
·
Chemical
Composition of Magmas
·
Viscosity, Temperature and H2O
Content of Magmas
Study Guide Material (Stacey’s Guide) :
1)
Where is most of
the volcanism on Earth located?
2)
Where are the
peaceful volcanoes found? Explosive
volcanoes?
3)
What are the two
most abundant elements in Earth’s crust?
4)
What can change
the viscosity of magma? What are
“volatiles?”
5)
Know the basics
about the three types of magma:
basaltic, andesitic, rhyolitic.
6)
What kind of
magma is found at spreading centers?
Subduction zones?
7)
What causes most
rock to melt during the eruption sequence?
8)
What is the role
of water (H2O) concentration in a volcanic eruption?
9)
Name the non-explosive, somewhat explosive and explosive
volcanoes.
10)
Be able to identify the differences between pahoehoe
lava, aa lava and pillow lava.
11)
What is a pyroclastic flow?