Building of Mountains
What is the stable, interior portion of the continent?
The craton
Where was the oldest tree in the world was once believed to be?
Great Basin National Park
What are faults?
fractures in the earth’s surface along which there has been some sort of displacement or movement caused by tectonic forces.
True or false, the stable interior portion of continent, usually very old crystalline rocks is the tectonic accretion?
False
Are most anticlines and synclines perfectly symmetric?
No
What are the two main types of folds?
1. Anticlines
2. Synclines
What is most of the mountain ranges in the Basin and Range consist of?
A metamorphic core complex of crystalline rocks
What is the most significant geologic structure?
The fault block mountains
What are joints?
Fractures or cracks in the earth’s surface at which there is no displacement.
Most of the mountain ranges in the Basin and Range consist of what kind of rocks?
Metamorphic core complex of crystalline rocks.
What are the three stages of Major Mountain Belt Building?
1.Accumulation Stage,
2.Orogenic Stage,
3. Crustal Extension, Block Faulting, and Uplift
What is the most visited National Park?
Great Smokey Mountains National Park
What are the three types of faults?
1. Dip-slip faults
2. strike-slip
3. Thrust faults
What are the highest mountains in the Appalachians?
The Blue Ridge Physiographic
What is the dominant rock type at Sequoia National Park?
Granite
The rocks in the earth’s crust change shape by what two processes?
Either folding or faulting
Where is the lowest place in North America located?
Death Valley National Park
What does frost wedging cause?
cracking, expansion, and leads to the rock breaking or splitting
What formed/ sculpted most of the Mountains at Grand Teton National Park?
Sculpted by alpine glaciers & tectonic uplift
Most of the bedrock exposed in the Grand Teton mountains is from what era and what type of rock?
Precambrian crystalline rocks.
An anticline is where rocks are folded upward in an arch. Where are the oldest rocks located in this fold?
The oldest rocks are in the middle of this arch pattern of rocks
What is the ground water heated by at Hot Spring National Park?
By the friction of movement along the faults
What movement does the Thrust faults, strike-slip, dip-slip faults do/ create?
Dip-slip faults are those with vertical displacement.
The strike-slip movement along the fault is side to side
Thrust faults are low-angle reverse faults
Which two parks have similar park geology when it comes to the formation of the Mountain?
Shenandoah National Park & Great Smokey Mountain National Park.
The Laurel Falls covers what kinds of rocks in the Great Smokey Mountains National Park?
The waterfall is over a durable Precambrian metasedimentary rock