Exam IV Flashcards Preview

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Flashcards in Exam IV Deck (15):
1

The dominant minerals in volcanic basalt are

Pyroxene, Calcium-rich feldspar

2

The dominant minerals in volcanic rhyolite are

quartz, potassium feldspar

3

The dominant minerals in peridotite are

olivine, pyroxene

4

Sedimentary rock composed mainly of shells and shell fragments is a

coquina

5

The most abundant chemical sedimentary rock is

limestone

6

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

bedding plane

7

The following rocks are foliated metamorphic rocks except ________.

quartzite

8

________ would be an example of a contact metamorphic rock.

quartzite

9

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

Detrital

10

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

chemical

11

Foliated rocks are associated with _______

Regional metamorphism

12

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

Lithification

13

The ______ is considered to be the "Age of Trilobites"

Paleozoic era

14

Dinosaur fossils can be found in rocks of the _____

Mesozoic era

15

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

Precambrian eon