Geology of the Vermont Portion of the Averill Quadrangle, Vermont

This resource is available as a downloadable file, ESRI Service, and as a Web Feature service. Resource includes a Bedrock map, Tectonic map, and text on Bedrock geology for the Vermont portion of the Averill quadrangle. For more information see links provided. Abstract: The Averill quadrangle lies within a belt of Silurian and Devonian rocks which extends from east-central Vermont to the Gaspe peninsula in Quebec. Metasedimentary rocks in the quadrangle belong to the Gile Mountain Formation of Devonian age. The Gile Mountain Formation in the Averill area is comprised of six mappable lithologic units forming an association which is typical of a eugeosynclinal sedimentary environment. These are: (1) phyllitic quartzmica schist, (2) subgraywacke characterized by thick graded beds, (3) hornblende schist, (4) dark gray slate and phyllite containing lenses of (5) feldspathic grits, and (6) light gray phyllite with minor schist, quartzite, impure limestone, and calc-silicate rocks.

Data and Resources

Metadata Source

Additional Info

Field Value
Citation Date 1964-01-01T12:00:00

Harvest Information

Original ID ba2f0b9d21f71acfe10609f76e1176e0
Index Date 2017-08-30T16:27:31Z
Original Format ISO-USGIN
Original Version 1.2


Name Paul Benton Myers, Jr.
Position missing
Organization Vermont Geological Survey

Geographic Extent

North Bound 45
South Bound 44.75
East Bound -71.5
West Bound -71.75