Lab

Question 1

Eccentric

Answer 1

Foci: x.x cm
Major axis: x.x cm
Foci/ M.A.
Final: 0.xxx

If close to 1 more eccentric
Farther less eccentric

Question 2

Igneous

Answer 2

Interlocking crystals
Glassy texture
Vesicular

Question 3

Sedimentary

Answer 3

Fossil evidence
Contains shells
Has layers (sandstone)
Clastic (made of rocks/sed)

Question 4

Metamorphic

Answer 4

Foliation (sheets)
Banding(gneiss)
Platy mica crystals (gilitary)
Garnet present (red/brown crystals)

Question 5

Locating epicenters

Answer 5

Swave-pwave = lag time
XX:XX:XX
Use difference and use wedge method
Use distance to draw circle

Question 6

Minerals

Answer 6

Streak: color or colorless
Breakage: cleavage(geo shape) or fracture
Hardness: scratch glass(hard) or don’t(soft)
Luster: metal shine(gold/silver or glitter, STREAK COLOR) or non-metallic (earthy, dull, white, glass, see through)