The Wonderful World of Geology

• Drilling• Soil identification• Darcy’s Law• Permeameter• Porosity• presented by Jacob Coleman, Kirk

Miller, Kelly Barrett, Amanda Margraf

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Soil ID

• There are 4 ways to classify different types of soil.– Moisture Content

• Moisture ranges from slightly moist to saturated

– Grain size• grain size ranges from silt to gravel

– Sorting• is either well sorted or poorly sorted

– Color• depends on the organic and mineral content of the

soil

Drilling

• When drilling you will use the hand auger or a power auger for deeper soil study.

• Use the prescribed classification system to identify which zone of the soil you are in.– Unsaturated zone-slightly moist, moist, very

moist.– Capillary Fringe-dripping wet– Saturated zone-located below water table

Underground water sampling

Darcy’s Law v=K/n(h/L)

• An equation for calculating the velocity of groundwater flow.

• v=K/n(h/L)

• K= Hydraulic conductivity

• n=porosity h=change in

head L=change in

length• v=velocity

Permeameter

• A device used to calculate the Hydraulic conductivity of your soil sample.– Hydraulic

conductivity is a measure of how easy water flows through soil.

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