chapter 11 Flashcards
1
Q
what creates an enormous amount of sedimentary debris?
A
glacial erosion
2
Q
how can we identify if glaciers once existed in the national parks?
A
by studying how they change the earth’s surface
3
Q
ice
A
- building blocks of rocks
- naturally occurring
- solid
- crystalline
- inorganic
- known composition
- mineral
4
Q
parks with glacier evidence:
A
great sand dunes, Carlsbad caverns, Guadalupe mountains
5
Q
what mountain has the largest glacial system?
A
mt rainier
6
Q
what specific features do geologists look for to identify if regions have experience glaciers in the past
A
till, moraines, u-shaped valley
7
Q
tills
A
sediment created by glaciers
8
Q
moraines
A
accumulations of till
9
Q
u-shaped notches
A
glaciers that have passed over bedrock created a U-shaped topography
