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Test 2
test 2
36
Geology
Undergraduate 1
03/22/2013

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Cards

Term
3 things that effect weathering
Definition

1. Typography

2. Climate

3. Rock Structure

Term
Define (soil) ClORPT and who created it?
Definition

Hans Jennings

Cl- Climate

O- Organisms

R- Relief (elevation)

P- Parent Material

T- Time

Term
Define Regolith
Definition
Layer of loose and solid material above bedrock
Term
Define Pedon
Definition
Unit of study(measurement) for soil
Term
Define Horizonation
Definition
A layer of soil parallel to topsoil
Term
Field approachs that effect horizonation in the field
Definition

Color

Structure(below surface)

Texture(mix of sand and silt)

Mottles(fluctuating water tables)

Krotovina(animal burrows)

Boundaries

Term
What are the Master horizons? (A,E,B,C,R,K)
Definition

Soil layers

A- top, soil of intense weathering

E- Leached Horizons

B- Zone of accumulation

C- Unaltered parent material

R- Hard bedrock

K- Cemented carbonite horizon

Term
What and where are Pedalfers and Pedocals
Definition

Pedalfer- wet soil, east of mississippi

Pedocal- Dry soil, west of mississippi

Term
What/is supported by Alfisols, Aridisols, Mollisols, and Vertisols
Definition

Alfisols- Forest soil, sandstone

Aridisols- Desert

Mollisols- Prarie(grass), limestone

Vertisols- floodplains

Term
What percentage of rock outcroppings are sedimentary
Definition
75%
Term
How are ancient structures identified
Definition
primary structure, cross cutting, ocean current, energy deposition
Term

The 3 basic types of sedimentary rock

+ examples

Definition

1. Biogenic (organic)- coquina(shells), chalk

2. Chemical- limestone, dolomite

3. Detrial- sandstone, chalk

Term
Sizes of sedimentary rocks
Definition

(big) Sand= 2mm-62um

Silt= 62um-4um

clay= <4um (smallest)

Term
5 basic types of cements how are they tested
Definition

1. Calcite- HCL drop

2. Silica- streak plate?

3. Limonite- yellow/brown streak

4. Hemotite- streak plate

5. Quartz- scratch glass

Term
Angular vs Rounded sediments
Definition

Angular means short distance traveled

Rounded means long distance traveled

Term
How are chemical rocks created?
Definition

come out of a solution

water precipitates->limestone

evaporitic->halite, gypsum

Term
How are Biogenic rocks formed
Definition

through dead animals

shells and sponges

Ex: cocina

Term
Coal formation types
Definition

Peat- plant material(not coal yet)

Lignite- Low grade coal

Bituminous- Med. grade coal

Anthracite- High grade coal

Term
Agents of Metamorphism
Definition
Heat, Pressure, and Chemical/fluids
Term
Foliated vs Non-Foliated
Definition

Foliated- multiple mineral composition

Non-Foliated- singular composition

Term
Major settings of metamorphism
Definition

Regional (large scale)

Plate techtonics(faults)

Impact craters

Heat/pressure

Term
Hydrothermal elements
Definition
elements deposited by solution when waters headed by magma chambers/ superheated
Term
Low and high grade textural terms for foliated rocks
Definition

low- Slatey

high- migmatite

Term
What are index minerals?
Definition
used to estimate degree metamorphism
Term
What's a migmatite
Definition
Partially melted half igneous & metamorphic
Term

Parent materials for

Slate

Marble

Quartzite

Greenstone

Definition

Slate- Shale

Marble- Limestone

Quartzite- Sandstone

Greenstone- Basalt

Term
Controls on Mass Wasting
Definition
downslope movement of soil/rock under gravity
Term
Define transpiration, evaporation, evapotranspiration
Definition

transpiration- water soaks to soil

evaporation- solid water to gaseous

evapotranspiration- evaporation from soil to atmosphere

Term
5 factors the effect infiltration
Definition

S

I

P

T

V

Term
Evolution of rills to rivers
Definition

small to large

runoff

rills

master rills

intermittent streams

streams

rivers

Term
Define interfluves, drainage divides, and basins
Definition

Interfluves- divide tributaries that go into

Drainage divides- divide into

drainage basins

Term
Factors that control stream velocity
Definition

shape and size

roughness

gradient(steepness)

discharge of channel

Term
Ways streams transport sediments
Definition

Solution- dissolve in water

Suspended- float above water

Bedload- bottom of streams

Term
3 basic types of streams
Definition

1. normal stream

2. meandering stream

3. braided stream

Term
define thalwag, pont bar, cutbank, and oxbow
Definition

thalwag- highest velocity

cutbank- sediment removed

pointbank- sediment deposited

oxbow- u shaped bend in the course of the river

Term
Drainage Patterns
Definition

Dendric (bloodstream, from mountains)

Radial (going away from the center)

Centripedal (goes toward center)

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