|
CONNECTICUT Mt. Frissell (summit in MA) 7 ½ quad: Bashbish Falls, MA-CT-NY Litchfield County Private land (Appalachian Trail follows a high ridge two miles east of Mt. Frissell, over the top of the highest mountain top in Connecticut, Bear Mountain, at 2,316 ft) Taconic Range
|
Metamorphic (metamorphosed sedimentary) 2,380 ft (725m) |
||||||
|
|
| Ledge in the trail at the highest point in Connecticut. (1999) | |
| Bedrock: Everett Schist | Cambrian |
|
Gray to green, locally rusty-weathering, fine to medium-grained quartz-feldspar-muscovite-garnet +/- staurolite +/- chloritoid schist. Part of the Taconic allochthons, rocks which were thrust westward in middle Ordovician time (+/- 454 million years ago) when an island arc farther east collided with Laurentia. Originally deposited as muds along the eastern continental slope of Laurentia.
Surficial Geology: Thin mantle of Wisconsinan glacial till; ice retreated from this part of New England about 15,000 years BP. Soil Series: Hollis sandy loam, extremely rocky and steep, fine sandy loam, derived from the till and underlying residuum. In some areas, bedrock exposure is greater than 50%.
Selected References: Rodgers, John, 1985, Bedrock Geological Map of Connecticut: Connecticut Geological and Natural History Survey, Hartford.
Other suggested sources of information: |
|