Sedimentary Rocks

Question 1

explain the rock cycle

Answer 1

ge tama yan

Question 2

pre existing rocks that are formed by water as sediments

Answer 2

Sedimentary Rocks

Question 3

How are sedimentary rocks formed

Answer 3

Compression and Compaction

Question 4

Types of Sedimentary Rocks and give examples for each

Answer 4

clastic - baka di m pa masagot 2
chemical - limestone, dolomite
organic rocks - coal, plant fossils

Question 5

Explain diagenesis

Answer 5

go beh kaya mo yan

Question 6

Classification of Sedimentary Rocks (3) give examples

Answer 6

Rudaceous Rocks - Conglomerate, breccia
Arenaceous Rocks - Sandstone
Argillaceous Rocks - Shale

Question 7

particle size of sediments from least to greatest

Answer 7

clay
silt
sand
gravel
pebble

Question 8

Coarse grain size
Medium grain size
Fine grain size

Answer 8

5 mm
1 - 5 mm
1 mm

Question 9

The deposition of the sediments in to layer or beds are called?

Answer 9

Stratification

Question 10

The thin bedding less than 1 cm in thickness are called? Found in very fine grained rocks.

Answer 10

Lamination

Question 11

Each bed shows a gradation in grain size from coarse below to fine above.

Answer 11

Graded bedding

Question 11

In this structure minor beds or laminations lie at an angle to the planes of the general stratification

Answer 11

Cross bedding or current bedding

Question 12

Are produced by the action of waves and current in shallow water

Answer 12

Ripple Marks

Question 13

What causes the landscape to be different?

Answer 13

Weathering
Erosion
Deposition

Question 14

The chemical and physical processes that change the characteristics of rocks on the Earth’s surface.

Answer 14

Weathering

Question 15

Occurs when rocks are broken in to smaller pieces without changing the chemical composition of the rock.

Answer 15

Physical Weathering

Question 16

Examples of physical weathering (4)

Answer 16

Frost Wedging
Exfoliation
Abrasion
Biological Activity

Question 17

The breakup of rock caused by the freezing and thawing of water.

Answer 17

Frost Wedging (action)

Question 18

is the peeling away of large sheets of loosened materials at the surface of a rock.

Answer 18

Exfoliation

Question 19

The physical wearing down of rocks as they rub or bounce against each other.

Answer 19

Abrasion

Question 20

Is where the rock material is changed into another substance by reacting with a chemical.

Answer 20

Chemical Weathering

Question 21

Types of Chemical Weathering (3)

Answer 21

Oxidation
Hydration
Carbonation

Question 22

When water interacts chemically with minerals

Answer 22

Hydration

Question 22

When oxygen interacts chemically with minerals

Answer 22

Oxidation

Question 23

When carbon dioxide interacts chemically with minerals

Answer 23

Carbonation

Question 24

A combination of particles of rocks, minerals, and organic matter produced through weathering processes.

Answer 24

Soil

Question 25

refers to the transportation of rock, soil and mineral particles from one location to another.

Answer 25

Erosion

Question 26

Main driving force behind all agents of erosion

Answer 26

Gravity

Question 27

final step in the erosional- ______ system

Answer 27

deposition

Question 28

As glaciers move over the land they acts as a "bulldozer" changing the view of the landscape

Answer 28

Glacial Deposition

Question 29

Earth material is broken down by processes of weathering and erosion, and is transported by the action of wind, water, or ice, and/or by the force of gravity

Answer 29

Depositional Environment

Question 30

Deposited on land or in fresh water

Answer 30

Terrestrial/Continental

Question 31

Deposited in an environment showing influence of both fresh water or air and marine water.

Answer 31

Transitional

Question 32

Only influenced by sea water.

Answer 32

Marine

Question 33

Processes associated with rivers and streams

Answer 33

Fluvial

Question 34

Loose, unconsolidated soil or sediments

Answer 34

Alluvium

Question 35

Desert areas cover about what percent of land surface

Answer 35

20-25%

Question 36

The removal of loose, find-grained particles by the turbulent action of the wind

Answer 36

Deflation

Question 37

The wearing down of surfaces by the grinding action by windborne particles

Answer 37

Abrasion

Question 38

Are perpendicular to the prevailing wind and form a wave like pattern

Answer 38

Traverse

Question 39

stretch parallel to the prevailing wind with rounded or pointed tops

Answer 39

Longitudinal dunes

Question 40

A curved, arc shaped sand mound with horns facing downwind formed in arid regions

Answer 40

Barchans

Question 41

These are U-shaped mounds that form in the reverse direction of a barchans.

Answer 41

Parabolic

Question 42

These are most commonly found on beaches and are sandy depressions in a sand dune caused by the removal of sediments by wind

Answer 42

Blowout

Question 43

The lightest material carried by the winds which form a so-called blanket covering the existing land

Answer 43

Loess

Question 44

Desert alluvial fan, broad surface area, fine grained

Answer 44

Bajada

Question 45

All of the sediment is transported together, with the ice, and it is deposited when the ice melts

Answer 45

Glacial

Question 46

The area above the firn line

Answer 46

Zone of Accumulation

Question 47

Zone of Ablation

Answer 47

area of a glacier or ice sheet below firn with a net loss in ice mass due to melting

Question 48

separates the accumulation zone from the ablation zone

Answer 48

Firn line

Question 49

type of snow that has been left over from past seasons

Answer 49

Firn

Question 50

Cracks in glacier

Answer 50

Crevasses

Question 51

glacier deposition making land features

Answer 51

Moraines

Question 52

spoon shaped sediments deposits formed due to streams

Answer 52

Drumlin

Question 53

long sinous deposition

Answer 53

Esker

Question 54

small depression and cavity formed in bedrock due to glacier movement

Answer 54

Kettle

Question 55

Half bowled shaped valley formed by glacial erosion

Answer 55

Cirques

Question 56

Sharp long narrow ridges at mountain tops formed by glacial erosion

Answer 56

Arete

Question 57

sharpest and elevated point of arete

Answer 57

Horn

Question 58

When river/stream enters still/standing water body, sediments are deposited in triangle shape

Answer 58

Delta

Question 59

A partially enclosed coastal body of brackish water

Answer 59

Estuary

Question 60

A shallow body of water separated from a larger body of water

Answer 60

Lagoon

Question 61

Very thin sediments formed by the slow accumulation of skeletons

Answer 61

Deep marine