SECOND EXAM

Multiple Choice: Each of the following multile choice question has five possible answers. Each answer may be used once, more than once or not at all. Each slot can have only one answer. If you think two will fit, put the one which fits best.

1. Multiple Choice.

_____Eocene Andesitic rocks of the Absaroka Mountains.                           1. The Appalachian Orogeny
_____The Uinta Mountains uplift.                                                                 2. The Laramide Orogeny
_____The Ouachita Mountains.                                                                     3. The Taconic Orogeny
_____Uplift of the Blue Ridge.                                                                      4. The Cordilleran Orogeny
_____Devil's Tower.                                                                                       5. The Grenville Orogeny
_____Deposition in the Green River Basin.
_____Deformation recorded in the Marathon Basin.
_____Tertiary intrusions of Northern Black Hills.
_____Deposition of the Fort Union Formation.
_____The Owl Creek uplift.

2. Multiple Choice.

_____Proterozoic rocks thrust over Cretaceous rocks.                                    1. Devil's Tower
_____Pronounced vertical columnar joints.                                                      2. Chief Mountain
_____Paleocene magmatism.                                                                            3. Mt. Rushmore
_____In Central Black Hills uplift.                                                                   4. Grand Teton Range
_____Interpreted by some as a volcanic neck.                                                  5.  Badlands National Park
_____A klippe of Precambrian rocks.
_____Formed of Archean rocks.
_____Proterozoic granitic rocks.
_____Formed during Cordilleran orogenesis.
_____Eastern edge of Montana Rockies.

3. Multiple Choice.

_____Cenozoic tensional deformation.                                                           1. Newark Basins
_____Beginnings of the Atlantic Ocean.                                                         2. Canadian Rockies
_____Miocene and later stretching.                                                                 3. Coast Ranges of British Columbia
_____Major geothermal resources.                                                                  4. Basin and Ranges Province
_____Cretaceous thrusting.                                                                             5. Uinta Mountains
_____Triassic tensional deformation.
_____Cretaceous Granitic rocks.
_____The Pallisades Sill (basalt)
_____The Frank landslide.
_____Compared to East African rift system

4. Multiple Choice.

_____Widespread kitty litter (bentonite) deposits.                                         1. Late Proterozoic
_____Deposition of the Mesa Verde Group.                                                  2. Silurian
_____Age of San Diego County granitic rocks.                                             3. Carboniferous
_____Last of the great interior seaways.                                                         4. Cretaceous
_____Deformation in the Overthrust Belt of Wyoming/Idaho                        5. Cambrian
_____Thrust faulting in Montana Rockies.
_____The Sevier Orogenic belt.
_____Age of Klamath Mountains granitic rocks.
_____Deposition of the Mancos Shale.
_____Active subduction along the western coast.

5. Multiple Choice.

_____ Deposition of the Green River Shale.                                                     1. Miocene
_____ Deposition of the Ft. Union Formation.                                                 2. Paleocene/Eocene
_____ Onset of the Columbia Plateau basalts.                                                  3. Pleistocene
_____ The Modoc (Alturas) flood basalts.                                                       4. Permian
_____ Rift valley deposition in Montana.                                                         5. Proterozoic
_____Craters of the Moon basalts
_____Andesitic volcanism in Wyoming, South Dakota, Colorado
_____First caldera of the Yellowstone / Snake River Plain Province.
_____Age of the Belt Group.
_____Last caldera of the Yellowstone / Snake River plain Province.

Essay Questions. Answer any five of the following six essay questions. Indicate which is to be left out.

1. Essay. If someone asked you what the age of Appalachian folding was, what would your answer be? On the basis of the rock units involved, how would your answer be determined?

2. Essay. Cite three localities showing indications of Laramide magmatism. What general types of rocks are present and why does this present difficulties for plate tectonic models?

3. Essay. How do the Laramide and Cordilleran Orogenies differ from one another in three major ways? List and briefly explain each way.

4. Essay. How does Basin and Range deformation differ from Cordilleran deformation? What types of structures are associated with each type? What is the age of each type?

5. Essay. How do the batholiths of the Cordilleran System differ from those of the Appalachian System in three major ways? List and briefly explain each way.

6. Essay. If you were to set up a drilling program in Craters of the Moon National Monument and were to drill a mile-deep hole, what rocks might you expect to encounter? What would the rock types be? What would the rock ages be?