Final Exam Flashcards
1
Q
\_\_\_ are typically found at the intersection of joints. A. Sinkholes B. Rivers C. Magma chambers D. Tower karst E. Volcanoes
A
A. Sinkholes
2
Q
The silica-rich evaporate deposits that surround geysers in the Yellowstone Basin are made of a material called \_\_\_. A. Geyserite B. Travertine C. Limestone D. Dripstone E. Feldspar
A
A. Geyserite
3
Q
A thermal karst feature that simply emits steam from small openings in the surface is called a \_\_\_. A. Fumarole B. Geyser C. Hot spring D. Magma chamber E. Geyserite
A
A. Fumarole
4
Q
The dissolved limestone that precipitates at the points where hot springs breach the surface is called \_\_\_. A. Geyserite B. Travertine C. Rhyolite D. Magma E. Sandstone
A
B. Travertine
5
Q
Surface runoff that disappears into a joint or sinkhole is called a \_\_\_. A. Sink river B. Swallow hole C. Disappearing stream D. Hot stream E. Pillar
A
C. Disappearing stream
6
Q
The primary substance that results from the two main dissolution processes is \_\_\_. A. Water B. Carbon dioxide C. Calcium silicate D. Dolomite E. Calcium bicarbonate
A
E. Calcium bicarbonate
7
Q
The primary difference between stalactites and stalagmites is their... A. Location B. Age C. Chemical composition D. Height E. Travertine content
A
A. Location
8
Q
Bedrock that has large number of joints will experience... A. Speleothem formation B. Little dissolution C. Great precipitation D. Great dissolution E. Geysers
A
D. Great dissolution
9
Q
It is theorized that the widespread geyser activity at Yellowstone National Park is the result of... A. Hot spring B. Volcano C. Mountain building process D. Travertine terrace E. Mantle plume
A
E. Mantle plume
10
Q
A feature created by sediment deposition that commonly occurs in arid regions at the mouth of a draw or canyon is a(n)... A. Alluvial fan B. Playa C. Dune field D. Talus slope E. Sedimentation
A
A. Alluvial fan
11
Q
The main dune form in most deserts is crescent-shaped ad usually found migrating across a non-sandy surface; it is called a(n)... A. Seif B. Star C. Barchan D. Arabian E. Bajada
A
C. Barchan
12
Q
\_\_\_ are dry or seasonal lakes which form in arid landscapes, often leaving white deposits of salt, gypsum, or other materials. A. Alluvial lakes B. Playa lakes C. Piedmont lakes D. Sag ponds E. Cirque lakes
A
B. Playa lakes
13
Q
When the winds have removed all the smaller particles, the remaining surface of rocks and gravel is called... A. Desert pavement B. Alluvial fans C. Playa lake D. Desert varnish E. Bajada
A
A. Desert pavement
14
Q
Africa's best example of an exotic river is the... A. Amazon B. Nile C. Orange D. Congo E. Zaire
A
B. Nile
15
Q
Besides a lack of soil, the primary reason for limited soil creep in arid regions is…
A. No wind
B. Soil creep is not limited in arid regions
C. Age of the soil
D. No water
E. Hot temperatures
A
D. No water
16
Q
A surface created by erosion residual that extends outward from a mountain base is called a(n)... A. Inselberg B. Bornhardt C. Salina D. Playa E. Pediment
A
E. Pediment