Chapter 5-Weathering and Soils 

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Roger Weller, geology instructor
wellerr@cochise.edu
copyright 2007-R.Weller 

               

links
last edited:  10/30/07            
Also visit the Cochise College
Physical Geology Illustrated Vocabulary

* asterisks indicate preferred websites.

overview of weathering
general lecture on weathering
weathering lecture
effects of weathering *
rock deterioration photos *
weathering glossary
glossary of weathering terms
differential weathering
differential weathering and jointing
differential weathering of a granite porphyry-Yosemite *
differential weathering photo-Little Falls, Ontario, Canada

physical weathering
overview of mechanical weathering
effects of physical weathering *
exfoliation
exfoliation of granite photo
exfoliation jointing in granite
exfoliation plates
exfoliation dome photo
frost wedging
frost wedging article
frost action
sharp edged boulders produced by frost wedging

root wedging
root wedging photo
tree roots splitting rock-photo
*
root wedging
salt crystal wedging
salt wedging (7th photo down)
sandblasting
sandblasting in the Mojave desert
sandblasting on Mars

sandblasting in Death Valley (9th photo down)
wind-abraded rocks-photos *
sand
things that you can do with sand**
thermal expansion
temperature change effects
unloading and sheeting
joints produced by unloading
 
chemical weathering
overview of chemical weathering
chemical weathering lecture
chemical weathering formulas

carbonic acid
the carbon cycle
carbonic acid
acid rain-USGS
chemical weathering of limestone
dissolution
weathering by solution
dissolution of limestone-photo

formation of clay
weathering of feldspar
animation of feldspar weathering to clay
chemical formula of feldspar weathering to clay

hydrolysis
hydrolysis-short paragraph

oxidation
oxidation of silicates and pyrite
oxidation-short paragraph

spheroidal weathering
spheroidal weathering-short paragraph
spheroidal weathering-photos #7, 8, & 9
spheroidal weathering photo
*
spheroidal weather-Mt.Woodson
spheroidal weathering-Salisbury Crags
tearpants structure
 

soils
overview of soils
Global Soil Regions Map ***
World Soil Resources Map Index ***
brief introduction to soils
overview on soils *
soil forming factors

soil formation
how soils are made
soil basics
bauxite
bauxite-Volcano World
bauxite geology
bauxite photo
photo of bauxite
bauxite-magnified view
the chemistry and processing of Jamaican bauxite
bauxite-USGS
expanding soils
problem soils-expansive soils
glossary of soil terms
glossary of soil terms
hardpan
map of hardpan areas in Hawaii
hardpan-caliche
caliche definition
short article on caliche
laterite
cutting of a laterite brick-photo
laterite photo-bottom of page
laterite pebbles
laterite nickel mining
article on laterites

links on soil
extensive collection of links on soil *
soils and weathering links *
loess
loess exposed in roadcut
Loess Hills, Iowa-USGS *
ancient dust storms in Illinois
article on loess
paleosol
3 paleosol photos in list
pedalfer
short paragraph on pedalfer
distribution
of pedalfer soils in USA
pedocal
distribution of pedocal soils in USA
podsol
prevention of soil erosion
prevention of soil erosion
regolith
lunar regolith
regolith article-Wikipedia
regolith vs. soil

salinization
brief paragraph on soil salinization
soil horizons
soil horizons-text and photo
transported soils
soil basics