earth and space science 4
TRANSCRIPT
Weathering: involves little or no transportation of the loosened or altered materials
Erosion: process of loosening and movement of sediment from one place to another on the Earth s surface; its agents include: water, ice, wind and gravity
Feldspar alters to clay minerals
http://www.gly.fsu.edu/~salters/GLY1000/10Weathering_Erosion/10Weathering%20and.htm
Soil: collection of natural, earthy materials on the Earth s surface containing living matter and capable of supporting plants
Chemical sediments / sedimentary rocks
Carbonate bank
limestone
coal
salt, potash banded iron formation
Paleozoic ( ancient life )
Mesozoic ( middle life )
Cenozoic ( recent life )
65 Ma
250 Ma
540 Ma
PHANEROZOIC EON
Relative Age Determination
oldest
youngest
intrusion
unconformity (erosion)
How old is Shale #3?
Inclusions & xenoliths
1 4
3 2
2
Compressive stress and ductile deformation
(flattening)
Ductile deformation
(folding)
Compressive stress