Study Notes For Quiz 1 Flashcards
Applied Geology
Geological information to help solve conflicts in land use, minimize degradation and maximize the beneficial results using our wnvironments
Environmental Geology
Study of people interacting with and on the surface of the earth
Sustainable
Only using land for things we need for survival, also means looking ahead at what our future generations will need our of the land
IPAT Equation for Environmental Impact
Qualitative assessment which is greatest in developed nations but not necessarily inside these nations
Impact = population + affluence + technology, P&A are void if nation is developing
Flux
The rate of transfer or cycling of an element through any cycle
Mechanical weathering
Frost, exfoliation, salt wedging, thermal expansion/contraction
Adsorb
Molecules of fluid held as thin film on the outside of a material
Absorb
To take in or soak up by chemical or physical actions.
What makes up soil?
45% mineral matter
5% organic
50% water and air
Scientific definition of soil
Material modified by biological, chemical and physical processes so that it will support plant life
Engineering definition of soil
Anything that can be moved without being blown up
Engineers concerns of soil
Soil strength (friction, cohesion, sensitivity, compressibility,erodibility, corrosion, shrink/swell)
Residual Soil
Parent material is underlying bedrock
Transported soil
Forms in place on parent material that had been carried from elsewhere and deposited
Laterites (Pedalfers)
Thick accumulation of iron oxides and Al rich clays in B horizon Intense chemical weathering Poor in nutrients Develops on humid, tropic climates Thin or no O layer
