Geology of Connecticut

Source: Wikipedia, the free encyclopedia.

As part of

glacial
activity.

Appalachian Mountains

During the early

metamorphic rocks once very deep in the Earth's mantle
and uplifted during this time period.

Eastern Border Fault

About 200 million years after this collision and the formation of Pangea, during the middle of the Mesozoic Era, the

faulting. Connecticut's Eastern border fault was formed, a fault which begins in New Haven and stretches 130 miles up to Keene, New Hampshire. As a result, the land west of this fault was downset, resulting in a rift valley
and causing the land to tilt an average of 15 to 25 degrees. The fault is currently inactive. The formation of this basin eventually refilled with soft fluvial and alluvial sediments.

Ice Age

During

glacial meltwater
and clay in the wintertime as the lake froze until it was later drained.

River Valley

This soft surface has since been

Connecticut River Valley
region.

See also

Further reading

External links