Geologic Unit: Tatnic Hill

Usage:

Tatnic Hill Formation (CT*,MA*)
Tatnic Hill Formation of Putnam Group (CT*-local)

Subunits:

(alphabetical): Bates Pond Lentil (CT*), Fly Pond Member (CT*,MA*), Yantic Member (CT*,MA*).

Geologic age:

Ordovician or older*

Type section, locality, area and/or origin of name:

Type area: consists of series of outcrops extending from Connecticut Route 169, on east side of Tatnic Hill, west for 2.5 mi to Stetson Road, in southeast corner of Hampton quadrangle, east-central CT. Named from exposures in area of Tatnic Hill in southern part of Danielson quadrangle, where section is more complete and contacts better exposed than elsewhere (Dixon, 1964).

AAPG geologic province:

New England province*