Northfield Formation - quartzite, grit, and conglomerate member

Dark-gray quartz-pebble metawacke and gray quartzite and conglomerate at base of the Northfield Formation, south of Springfield. Part of the Connecticut Valley Trough.
State Vermont
Name Northfield Formation - quartzite, grit, and conglomerate member
Geologic age Lower Devonian and Upper Silurian
Lithologic constituents
Major
Sedimentary > Clastic > ConglomerateGray quartzite and conglomerate.
Metamorphic > Metasedimentary > Metaclastic > Metasandstone > MetagraywackeDark-gray quartz-pebble metawacke.
Metamorphic > Metasedimentary > Metaclastic > QuartziteGray quartzite and conglomerate.
Comments On the printed map the unit label is DSnq, but in the GIS it is Snq. Changing to DSnq to match the printed map; Snq is a mistake according to Greg Walsh (oral communication 2012).
References
NGMDB product
Counties Windham - Windsor