How were Appalachian Mountains formed?

Question

The question is in the title. PLEASE HELP. i researched but i need more! thanks!:P

Answer 1

During the Grenville Orogeny (orogeny = mountain building).  Pangea was formed and the mountains were made.  I know the basics but Wikipedia should help you more than I can

Answer 2

The tectonic history of the Appalachian Mountains is divided traditionally into three main orogenic phases during the Paleozoic. Each phase begins with accumulation of thick marine sediments and volcanic deposits, culminates with deformation and uplift of mountains, and finally ends with tectonic quiessence. A particular consequence of orogeny is production of sediment in great volumes as uplifted mountains undergo rapid erosion. Thus, each phase is marked by buildup of a so-called "delta" filling shallow seas on the continental side of the orogeny. These deltas are actually clastic fans that include sediments deposited in many environments--terrestrial, coastal, near-shore, and off-shore settings. Much of what is known about the timing, location, and magnitude of mountain uplift is deciphered from the record of sediment accumulation.