USGS - science for a changing world

Mineral Resources On-Line Spatial Data

Mineral Resources > Online Spatial Data > Geology > by state > Massachusetts

Hoosac Formation

Hoosac Formation - Rusty, gray, quartz-albite-mica (-chlorite) schist and gneiss. Locally conglomeratic.
StateMassachusetts
NameHoosac Formation
Geologic ageLower Cambrian and Proterozoic Z
Original map labelEZhr
CommentsPart of Taconic-Berkshire Zone (Ordovician and Older Rocks); east of Berkshire Highlands
Primary rock typemica schist
Secondary rock typegneiss
Other rock types
Lithologic constituents
Major
Metamorphic > GneissRusty, gray, quartz-albite-mica (-chlorite) schist and gneiss. Locally conglomeratic.
Metamorphic > SchistRusty, gray, quartz-albite-mica (-chlorite) schist and gneiss. Locally conglomeratic.
Map references
Unpublished Digital Geologic Map of Massachusetts received from Rudi Hon at Boston College in 1998.
Unit references
Zen, E-An (ed.), Goldsmith, R. (comp.), Ratcliffe, N.M. (comp.), Robinson, P. (comp.), Stanley, R.S. (comp.), Hatch, N.L., Jr., Shride, A.F., Weed, E.G.A., Wones, D.R., 1983, Bedrock Geologic Map of Massachusetts: U.S. Geological Survey, Reston, VA, scale 1: 250,000.
Geographic coverageFranklin

Show this information as [XML]

AccessibilityFOIAPrivacyPolicies and Notices

Take Pride in America logoUSA.gov logoU.S. Department of the Interior | U.S. Geological Survey
URL: http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=MACAZhr;0
Page Contact Information: Peter Schweitzer