GEOLOGY INSIGHT: CT’s varied rock types are focus of local Tuesday talk

A program on “The Geology of Connecticut” will offer insight on the state’s many rock types, including those found at state parks.

Geologist Teresa Gagnon will present the program on Tuesday, Nov. 18 at 7 p.m. at the Kellogg Environmental Center, 500 Hawthorne Ave., Derby.

During her talk, Gagnon will showcase examples of bedrock and glacial geology at Connecticut state parks such as Kettletown (Oxford) and Sleeping Giant (Hamden) as well as Dinosaur, Devil’s Hopyard and West Rock Ridge.

The presentation is being hosted by the  Naugatuck Valley Audubon Society, in cooperation with the state Department of Energy and Environmental Protection.

Wide assortment of rock types

Though a small state, Connecticut has a wide assortment of rock types, many swirled together in complex patterns. More recently in geologic time, continental ice sheets flowed down from the north, modifying the landscape by scouring, scraping and re-depositing rocks and sediments throughout the state.

Light refreshments will be served after the Nov. 18 program. A donation of $5 per adult is requested; children ages 12 and younger are free.

The Kellogg Environmental Center is off Route 34, slightly north of Derby center. For information, directions or to register, call the center at 203-734-2513 or contact Dennis Kocyla at 203-734-9325 or