Alleghany Orogeny

1
Alleghany Orogeny

• Birth of Pangea

2
Alleghany Orogeny

• Final event in the assembly of Pangea
• Iapetus Ocean is completely closed
• Gondwana collides with Laurentia
• Western Africa collides with Eastern North
  America
• Largest orogenic event in southern Appalachians

3
Structural Effects tilting/folding
4
Structural and Stratigraphic Effects Folded
Molasse
5
Structural Effects folding
6
Stratigraphic Effects angular unconformity and
molasse
7
Relief and included fragments along unconformity
8
Molasse with a difference coal
9
Coal Breaker
10
Coal end use
11
Coal to electricity
12
Effects of coal use abandoned strip mines, mine
spoil and acidity
13
Sheridan Banks mine spoil
14
Sheridan Banks mine spoil
15
Sediment loading and AMD
16
AMD acid mine drainage
17
AMD and red boy
18
AMD from the subsurface
19
Appalachians and Appalachian Basin
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Appalachian Provinces
21
Appalachian Provinces
22
Appalachian Provinces