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47 Cards in this Set

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How can mechanical weathering speed up chemical weathering?

Mechanical wearhering exposes more surface area

Name 3 natural sources of acid in solution

Carbonic acid, sulfuric acid, and plant acids

What factors affect the formation of soil?

Parent material, climate, time, organic material

How do soils erode, and why is it important to minimize soil erosion?

Wind, water, glaciers, organisms . And because its important for plant life

Name and sketch the soil horizons that form in a humid climate. Explain how the layers (horizons) form.

REMEMBER IT IS AS A LAYERED CAKE.



O --> humus


A ---> leaching


B ---> accumulation


Bedrock

Physical disintegration of rock into smaller pieces is called

Mechanical weathering

The decomposition of rock from exposure to water and atmospheric gases is called

Chemical weathering

The decomposition of rock from exposure to water and atmospheric gases is called

Chemical weathering

Which is not a type of mechanical weathering?


Frost wedging


Pressure release


Frost heaving


Oxidation

Oxidation

The single most effective agent of chemical weathering at Earths surface is?


Carbonic acid


Water


Carbon dioxide


Hydrochloric acid

Water

The most common end product of the chemical weathering of feldspar is?


Clay minerals


Amphibole


Pyroxene


Calcite

Clay minerals

The most common end product of the chemical weathering of quartz is?


Clay minerals


Pyroxene


Amphibole


Calcite


Quartz isnt affected

Quartz isnt affected

Soil with approximately equal amounts of sand, silt, and clay along with a generous amount of organic matter is called

Loam

Soil with approximately equal amounts of sand, silt, and clay along with a generous amount of organic matter is called

Loam

The most important factor in determining the type of soil that forma is?

Climate

The soil horizon containing only organic material is the?

O horizon

Hardpan forms in the?


A horizon


B horizon


C horizon


E horizon

B horizon

What conditions of climate and weathering rate could lead to feldspar rich sandstone?

Dry climate and slow weathering

What do mud cracks tell us about the environment deposition of a sedimentary rock?

It used to be wet

How does a graded bed form?

In slowing water

List the detrial sediment particles in order of decreasing grain size.

Boulders


Cobbles


Pebbles


Sand


Silt


Clay

Think of onyx from pokemon

How does a sedimentary breccia differ in appearance and origin from a conglomerate?

Conglomerate: large grains that traveled


Breccia:large angular grains did not travel

3 different origins for limestone

Lakes


Caves


Open ocean


Springs

How does a sedimentary breccia differ in appearance and origin from a conglomerate?

Conglomerate: large grains that traveled


Breccia:large angular grains did not travel

3 different origins for limestone

Lakes


Caves


Open ocean


Springs

How does dolomite form?

When you replace calcium in calcite with magnesium

Origins of coal?

Decomposed plant material

How do evaporites form? Name two.

Water evaporates, rock salt and rock gypsum

Name 3 common types of sedimentary rocks

Limestone, sandstone, and shale

What formation?

A high layer of rock

Explain two ways that cross-bedding can form

Wind and water

Particles of sediment from 1/16 to 2 millimeters in diameter are of what size?

Sand

Rounding is

The grinding away of sharp edges of rock fragments during transportation

Compaction and cementation are two common processes of


Erosion


Deposition


Transportation


Lithification

Lithification


Which is not a chemical or organic sedimentary rock?

Sandstone

Breccia and conglomerate difference

rounding of the grains

Which is not a type of sandstone?

Travertine

Which is not a type of sandstone?

Travertine

Shale differs from mudstone in that

Shale is visibly layered and fissile

Front (Term)


The chemical element found in dolomite not found in limestone is?

Back (Definition)


Magnesium (Mg)

Front (Term)


A body or rock of considerable thickness with characteristics that distinguish it from adjacent rock units is called a?

Formation

If sea level drops or the land rises, what is likely to occur?

A regression

Thick accumalation of greywacke and volcanic sediments can indicate an ancient

Convergent boundary

A sedimentary rock made of fragments of preexisting rocks is

Detrial

Clues to the same nature of the source area of sediment can be found in

The composition of the sediment


Yes

Back (Definition)


Ueah

Yeag

Hj