appalachian

Title: appalachian
Category: /Science & Technology
Details: Words: 1099 | Pages: 4 (approximately 235 words/page)
appalachian
The Appalachian Mountains The Appalachian mountain system dominates the Eastern United States and seperates the Eastern seaboard from the interior with a belt of uplands that extends nearly 1,500 miles from northeastern Alabama to the Canadian border.; They are old, complex mountains, eroded from much older and greater ranges. The present topography is a result of erosion that has carved the weak rocks away, leaving a skeleton of resistant rocks behind as highlands. Because of this …showed first 75 words of 1099 total…
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…showed last 75 words of 1099 total…geologic features that sharply contrast with those of nearby provinces. The Avalonm terrane which docked itself next to North America during the Acadian orogeny fits this description. Its rocks are very different from those of adjacent regions. These rocks are exposed throughout the park and consist primarily of metamorphosed sedimentary and volcanic rocks. Abundant igneous activity associated with the Acadian orogeny produced large amounts of dioiritic and granite igneous rock also exposed in the park.

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