Honors Earth Chp 4 Weathering Soils Mass Wasting Notes
15
1 Water, wind, gravity, glacier No chemical change in the rock Big rock > Little rock water freezes expanding about 10% exfoliation Burrowing animals Root Wedging Rust 4
Honors Earth Chp 4 Weathering Soils Mass Wasting Notes
UntitledNo chemical change in the rock
Big rock > Little rock
water freezes expanding about 10%
exfoliation
+ 4SiO2
Potassium Feldspar Carbonic Acid Water
Potassium Ion Bicarbonate Silica
Solution
Clay Mineral
warm temperatures and abundant moisture
Cements Sediments
Glue for Sedimentary Rocks
Sand
4
*** Most Important**
30 year average of daily weather
6
Abundant moisture
Very limited thin Topsoil
Fe
7
8
9
10
What is moved? How it moves?
How fast it moves?
11
Silt 20%
Clay 15 %
Creep
14
The level of carbon dioxide in the atmosphere
has been increasing for more than a century.
Should this increase tend to accelerate or slow
down the rate of chemical weathering of Earth's
surface rocks? What exactly is the link between
chemical weathering and carbon dioxide?
Describe some possible sources of this
increasing level of carbon dioxide.
Attachments
clipboard.bmp
Attachments Page 1