Exam IV

Question 1

The dominant minerals in volcanic basalt are

Answer 1

Pyroxene, Calcium-rich feldspar

Question 2

The dominant minerals in volcanic rhyolite are

Answer 2

quartz, potassium feldspar

Question 3

The dominant minerals in peridotite are

Answer 3

olivine, pyroxene

Question 4

Sedimentary rock composed mainly of shells and shell fragments is a

Answer 4

coquina

Question 5

The most abundant chemical sedimentary rock is

Answer 5

limestone

Question 6

A(n) ________ marks the end of one period of sedimentation and beginning of another

Answer 6

bedding plane

Question 7

The following rocks are foliated metamorphic rocks except ________.

Answer 7

quartzite

Question 8

________ would be an example of a contact metamorphic rock.

Answer 8

quartzite

Question 9

A _______ sedimentary rock is formed from the weathering and erosion of pre-exsisting rock.

Answer 9

Detrital

Question 10

A ________ sedimentary rocks are derived from material that was once in solution, which precipitated to form sediment

Answer 10

chemical

Question 11

Foliated rocks are associated with _______

Answer 11

Regional metamorphism

Question 12

_______ is the conversion of sediments into a rock through compaction by overlying sediments or by cementation

Answer 12

Lithification

Question 13

The ______ is considered to be the “Age of Trilobites”

Answer 13

Paleozoic era

Question 14

Dinosaur fossils can be found in rocks of the _____

Answer 14

Mesozoic era

Question 15

The first one-celled organism were found in rocks of the

Answer 15

Precambrian eon