Exam 4 Eolian And Shit

Front 1

The 4 types of eolian environments

Back 1

Desserts

Desertified regions

Coast lines

Glacier margins

Front 2

Conditions for erosive sediment

Back 2

Small

Dry

Loose

Front 3

How does vegetation affect wind?

Back 3

Breaks flow

Catches uplifting sediment

Front 4

Ventifacts

Back 4

Objects altered by wind sediment

Front 5

Yardangs

Back 5

Low narrow ridges that form parallel to prevailing wind direction

Front 6

Blow out depression

Back 6

Wind scooping out an area of sediment

Front 7

Desert pavement

Back 7

A layer of medium and large sediment created from smaller sediment blowing away

Front 8

Saltation

Back 8

Coarse particles too big to be picked up bouncing along the ground

Front 9

Surface creep

Back 9

Larger rock fragments pushed across the ground by surface creep

Front 10

What is the process of impact?

Back 10

Grains impact the ground

Bounce up

And repeat

Front 11

What kind of rock is moved by suspension?

Back 11

clay and silt

Front 12

What is the range coarse particles jump?

Back 12

.2 - 2 meters

Front 13

True or false, dunes are approximately the same size

Back 13

False

Front 14

Slipface

Back 14

Leeward slope of a dune

Front 15

What are the three parts of a dune?

Back 15

Windward slope

Crest

Slipface

Front 16

Erg

Back 16

Sand sea

A large area covered by dunes

Front 17

Cross bed

Back 17

A group of inclined layers of sediment on a dune

Front 18

How can you identify a dune that has been influenced by multiple wind directions

Back 18

Cross bedding

Front 19

Barchan

Back 19

Crescent shaped dune created by strong winds

Front 20

Transverse dune

Back 20

Continuous ridge of sand at a right angle of the wind.

Made from large sand deposits and a single direction of wind

Front 21

Longitudinal dunes

Back 21

Long ridge dunes created by two winds with slip faces on both sides

Front 22

Parabolic dunes

Back 22

Crescent shaped with the slipface facing away from the wind. Anchored by vegetation these are usually found in semi arid regions

Front 23

If there is a gentle slope, is it facing toward or away from the wind direction

Back 23

Away

Front 24

Loess

Back 24

Sedimentary deposit of dust

Front 25

Loess are downwind from these 4 places

Back 25

Deserts

Glacial meltwater streams

Semi-arid floodplain

Coastal areas

Front 26

Loess are in what kind of climate?

Back 26

Steppe

Front 27

Loess have what property when dry?

Back 27

Stand vertically

Front 28

Loess have whay property when wet?

Back 28

erode easily

Front 29

Loess have ____ layers, a ______ angle of repose and _____ soil

Back 29

Thick

Steep

Good