EXAM TWO VI

Question 1

Rocks from Obsidian Cliff in Yellowstone Park were used as

Answer 1

weapons

Question 2

Yellowstone Park got its name from _______.

Answer 2

color of volcanic rocks on canyon walls along Yellowstone River

Question 3

The red, brown and yellow colors observed on the walls of the Grand Canyon of Yellowstone are due to ________.

Answer 3

intense chemical weathering by hot ground water and steam.

Question 4

Mt. Lassen, which erupted in 1915, is an example of a

Answer 4

plug dome

Question 5

A huge, 11,000-ft tall ancient volcano that collapsed- 200,000 years ago at Lassen Park was

Answer 5

Mt. Tahama

Question 6

In 1865, T.M Boardman attempted to set up a sulfur & clay mining operation in the southwestern portion of Lassen Park, in the area presently known as _______:

Answer 6

Sulfur Works

Question 7

A 16-acre area in the southwest part of Lassen Park, that consisted of boiling springs, steaming sulfur vapors and bubbling mud pots associated with old caldera fissures, was named its discoverer _________.

Answer 7

Kendall Bumpass

Question 8

In Lassen Park, the colors int he rocks at Painted Dunes are due to __________.

Answer 8

oxidation of volcanic ash

Question 9

Subway Cave at the Northwest corner of Lassen Park is an example of a _______.

Answer 9

Lava Tube

Question 10

________ is the southernmost active volcano in the Cascade Range of the Pacific.

Answer 10

Mt. Lassen