- The
Alleghanian orogeny or
Appalachian orogeny is one of the
geological mountain-forming
events that
formed the
Appalachian Mountains and
Allegheny Mountains...
- south. The
Central Pangean Mountains were
formed during the Variscan-
Alleghanian-Ouachita orogeny.
Today their remains stretch over 10,000 km from the...
- Appalachians,
culminating in the
collision of
North America and
Africa (see
Alleghanian orogeny). The
third mountain-building
event was the
Acadian orogeny which...
-
collision of
Euramerica and
northern Gondwana as part of the
Variscan and
Alleghanian orogenies,
which began during the
Carboniferous approximately 340 million...
-
valleys in between. The
Valley and
Ridge Province was
formed during the
Alleghanian orogeny, a mountain-building
event that
occurred between 325 and 260...
- years. The
Acadian orogeny began 375 Ma and
lasted 50
million years. The
Alleghanian orogeny began 325 Ma and
lasted 65
million years. The
first mountain-building...
- is unknown, but
could have
occurred during the Taconic, Acadian, or
Alleghanian Orogenies. The
terrane comprises Neoproterozoic to
Early Cambrian meta-sedimentary...
-
States Tennessee North Carolina Parent range Blue
Ridge Mountains Borders on Bald
Mountains Unicoi Mountains Plott Balsams Geology Orogeny Alleghanian...
- in the
Southern Appalachian Mountains. The
French Broad predates the
Alleghanian orogeny,
through the
resulting mountains it cuts; however, the current...
- in the
docking of some
northern terranes in the Marathon, Ouachita,
Alleghanian, and
Variscan orogenies, respectively.
Southern terranes, such as Chortis...
