Lecture 3

Question 1

Plates and direction involved with Mid-Atlantic Ridge

Answer 1

Divergent: South American Plate + African Plate
Divergent: North American Plate + Eurasian Plate

Question 2

Plates and direction involved with San Andres Fault

Answer 2

Transform Fault

• NA Plate moving south
• Pacific Plate moving north

Question 3

Plates and direction involved in Cascade Volcanic Chain/Arc

Answer 3

Convergent (subduction): Juan de Fuca Plate + NA Plate

Question 4

Plates and direction involved in Himalayan Mountains

Answer 4

Convergent: Indian Plate + Eurasian Plate

Question 5

Plates and direction involved in Japanese Island Arc

Answer 5

Convergent: Eurasian Plate + Pacific Plate

Question 6

Plates and direction involved in “Basin & Range”

Answer 6

Divergent: NA Plate

Question 7

What are “hot spots”

Answer 7

• Aseismic volcanic chains in the middle of plates
• start below asthenosphere
• goes up so fast it goes up in a straight line
• eventually die out

Question 8

Two hotspots to know

Answer 8

Hawaii

• middle of pacific plate
• ocean lithosphere

Yellowstone

• North American Plate
• continental lithosphere

Question 9

Most common mineral

Answer 9

Quartz = SiO2

Question 10

Second most common mineral

Answer 10

Calcite: CaCO3

Question 11

How can we determine the number of protons of an element on a periodic table

Answer 11

Atomic number = # of protons

Question 12

How can we determine the number of neutrons of an element on a periodic table

Answer 12

Neutrons = atomic weight - atomic #

Question 13

Cation vs Anion

Answer 13

Cation = positively charged ion (+)
- take e- away

Anion = negatively charged ion (-)
- add e-