What is limestone made out of?
Calcite -- CACO3
Chemical Weathering Formula
H20+CO2 <--> H2CO3
Mechanical Weathering Examples
Water (frost wedging(vertical), frost heaving(pushes up)
Thermal Expansion
Root Wedging
Groundwater Sapping
Water Abrasion
Cavitation
Erosion
transportation of broken material
Weathering
the breaking of material
Factors of Mass Wasting
lack of Vegetation
relief
seismic activity
water
type of bedrock
slope
Four Categories of Mass Wasting
Falls, Slides, Slow Flows, Rapid Flows
Soil Horizons
A,O,E,B,C -- loam and bedrock
water percentages
96.5 -- Oceans
0.9 -- Saline Groundwater
2.5 -- Fresh water
--> 68.7 -- Glaciers
--> 30.1 -- Groundwater
--> 1.2 -- Surface Waters
, types of work for streams
erosion, transportation, deposition
four types of erosion
cavitation
abrasion
solution
hydraulic action
what is competence
how much a stream can carry
alluvium
material deposited by streams
types of transportation
bed load
suspended load
dissolved load
flooding increases what?
competency
when do floods occur?
when the amount of water entering a stream exceeds that streams discharge
flooding formula
height X width X velocity
whats the single most important resource to humans worldwide?
groundwater
aquifer
geological unit that has significant water resources that can be extracted
aquiclude
geologic unit with low porosity and permeability
capilated fring
water being drawn up -- like a paper towel
occur when the land surface intersects the water table