Geologic features of National Parks:
Where is the Great Smoky Mountains located, and what causes an acceleration of chemical erosion to occur?
Tennessee and North Carolina
Tones of rain and snow at higher elevations cause an increase in chemical erosion.
What is the definition of folds and faults?
Faults occur when rocks are being displaced or broken.
Folds are the bending of rock.
At what national park can you find Lehman Cave. What type of rock is found there and how was the cave formed?
Great Basin National Park
Paleozoic limestone
formed from dissolving ground water that eroded the limestone.
What is an alluvial fan?
fan-shaped opening created by rivers and streams, that deposit rocks and sediment at the bottom of a mountain.
What is the definition of foliated and non-foliated metamorphic rocks?
Foliated- repetitive layering of mineral grains on a rock. This is from intense pressure, that causes the banding around the rock.
Non-foliated- Has no visible bands or repetitive layering within the rock.
What river runs through Grand Teton National Park, and where is this national park located?
Snake River
Wyoming
What are the three types of fault lines and what happens at each?
Normal faulting- tensional, or extensional, forces pull the rocks apart, resulting in a fault.
Strike-slip faulting- commonly found at the bottom of the ocean at transform boundaries. With lateral movement.
Reverse and thrust faulting- compressional forces push rocks together, resulting in a fault. Hanging wall is pushed up above the footwall.
What is considered the oldest tree?
Bristlecone Pine
What is Playa?
A Playa consist of flat sandy areas, without salt deposits.
What are the three stages of mountain building?
What geologic park feature was displaced at least 30,000 feet down and covered with sediment?
Grand Teton National Park
What causes cracks on a rocks surface but has no displacement?
Joints
At what National Park was there a gold mine that operated in the 1930's?
Joshua Tree National Park
What is a Fault Scarp?
Located at the base of a mountain, this fault is detectable to the eye, because it is located on the surface.
What is the highest mountain in the lower 48 states, and what national park can it be found in?
Mt. Whitney in Sequoia National Park.
What National Parks have normal faulting?
What are the three types of folds?
Anticline- folded upward
Syncline- folded downward
Monocline- one side folded downward
What National Parks are found in the Appalachians?
Shenandoah National Park
Great Smokey Mountains National Park
What do striation in granite indicate?
That ice at one time flowed down the valley.
In the Great Smoky Mountains, where did settlers live?
Fertile Valley located in Cades Cove.
What National parks had evidence of glaciers, from module 6?
Sequoia and Kings Canyon National Park
Great Basin National Park
Grand Teton National Park
What is another name for normal and reverse faults called?
dip-slip faults
What national Parks are located in the Basin and Range Physiographic Province?
How and where is chert formed?
Chert is formed in the deep ocean, from a collection of siliceous plankton skeletons.
Why is Badwater basin called Badwater Basin?
Badwater Basin gets its name from settlers. Due to the spring having salt cover the bottom layer. Making it so salty that you are unable to drink from this spring.