GEOLOGY Midterm

Question 1

What are chemical sedimentary rocks?

Answer 1

Minerals precipitated from water. (Ex; salt, chert, gypsum)

Question 2

What are biochemical rocks?

Answer 2

Chemical components from water (Ex;Limestone)

Question 3

What is a chert?

Answer 3

Sedimentary rocks made of sio2 +/- fossils
Side Notes: Opsidium is ALSO compounded of sio2, DO NOT MIX THEM.

Question 4

What are organic sedimentary rocks?

Answer 4

made of organic carbon - fossil vegetation

Question 5

Describe sedimentary structure

Answer 5

Horizontal bedding, cross bedding, and graded bedding.

Question 6

1 Mi in Km =

Answer 6

1.61 Km

Question 7

1 Km in M =

Answer 7

1000 M

Question 8

1 M in Cm =

Answer 8

100 Cm

Question 9

1 Cm in Mm =

Answer 9

10 Mm

Question 10

1 Mi in ft =

Answer 10

5280 ft

Question 11

1 ft in Inch =

Answer 11

12 Inch

Question 12

1 Inch in Cm =

Answer 12

2.54 Cm

Question 13

Earth made of?

Answer 13

Atoms.

Question 14

What are atoms?

Answer 14

Building block elements; protons, neutrons, and electrons.

Question 15

What does GA stand for?

Answer 15

billion years.

Question 16

What does MA stand for?

Answer 16

million years.

Question 17

What is nebulae?

Answer 17

Molecules that accumulate

Question 18

What is a continental drift?

Answer 18

A theory that earth’s continents move over time; pangea.

Question 19

Lithosphere:

Answer 19

Earth’s outer layer; rigid and comprised of rock/minerals

Question 20

Asthenosphere:

Answer 20

Earth’s semi-solid layer; upper mantle, key part of plate tectonics and earthquakes.