U.S. DEPARTMENT OF THE INTERIOR Prepared in cooperation with the SCIENTIFIC INVESTIGATIONS MAP 3184 U.S. GEOLOGICAL SURVEY STATE OF VERMONT, VERMONT AGENCY OF NATURAL RESOURCES, BEDROCK GEOLOGIC MAP OF VERMONT MARCIA K. McNUTT, DIRECTOR VERMONT GEOLOGICAL SURVEY SHEET 3 OF 3 (BACK) LAURENCE R. BECKER, STATE GEOLOGIST SOURCES OF GEOLOGIC MAP DATA 73° 22’ 30” 73° 72° 30’ 72° 71° 30’ A1. Agnew, P.C., 1977, Reinterpretation of the Hinesburg thrust in northwestern Vermont: D7. Doolan, B, Brooks, K., Copans, B., Hengstenberg, C., and Sonenberg, D., 1999, Bed- H14. Hewitt, P.C., and LaBrake, R.F., 1961, The geology of the Equinox quadrangle and vi- M21. Moench, R.H., Boone, G.M., Bothner, W.A., Boudette, E.L., Hatch, N.L., Jr., Hussey, R22. Ratcliffe, N.M., and Armstrong, T.R., 2001, Bedrock geologic map of the Saxtons River T7. Thompson, P.J., and Thompson, T.B., 1995, Digital bedrock geologic map of parts of Burlington, Vt., University of Vermont, unpub. M.S. thesis, 82 p. rock geology of the Cold Hollow Mountains quadrangle, Vermont: Vermont Geologi- cinity, Vermont: Vermont Geological Survey Bulletin 18, 83 p., 6 pls., scale A.M., II, and Marvinney, R.G., 1995, Geologic map of the Sherbrooke-Lewiston 7.5' × 15' quadrangle, Windham and Windsor Counties, Vermont: U.S. Geological the Huntington, Richmond, Bolton and Waterbury quadrangles, Vermont: Vermont WEST HIGHGATE NEWPORT MORGAN NORTON MONADNOCK PITTSBURG SHELDON ENOSBURG D9 D9 AVERILL OE N. D4, L4, cal Survey Open-File Report VG99–4, 6 pls., scale 1:24,000. (Also available at 1:62,500. (Also available at http://www.anr.state.vt.us/dec/geo/bulletins.htm.) area, Maine, New Hampshire, and Vermont, United States, and Québec, Canada, Survey Geologic Investigations Series Map I–2636, 2 sheets, scale 1:24,000, includes Geological Survey Open-File Report VG95–9A, 2 pls., scale 1:24,000; VG95–9B, M10 D9 D9 D4 D4 CENTER OE N. D9 D9 RICHFORDD9, R28OE N. JAY PEAKC3, OED9 N. NEWPORT OE N. CENTER OE N. POND OE N. D4, M21, A2. Albee, A.L., 1957, Bedrock geology of the Hyde Park quadrangle, Vermont: U.S. Geo- D4, M10 SPRINGS OE N. FALLS OE N. NORTH TROY OE N. CENTER OE N. D4, M21, M22 MOUNTAINM22 OE N. M21, M22 http://www.anr.state.vt.us/dec/geo/ofreps.htm.) with Contributions to geochronology by J.N. Aleinikoff: U.S. Geological Survey Mis- pamphlet, 21 p. (Also available at http://ngmdb.usgs.gov/Prodesc/ database for part A. (Also available at http://www.anr.state.vt.us/dec/geo/ ROUSES POINT OE N. EAST ALBURG OE N. M10, S3, S4 CHARLESTON OE N. logical Survey Geologic Quadrangle Map GQ–102, scale 1:62,500. H15. Hoar, R.S., 1981, The bedrock geology of the Coventry area, Vermont: Burlington, Vt., QUEBEC,´ CANADA cellaneous Investigations Series Map I–1898–D, 2 sheets, scale 1:250,000, includes proddesc_42276.htm and http://pubs.usgs.gov/imap/2636/.) ofreps.htm.) 45° 45° D8. Doolan, Barry, Cherichetti, Lars, Holt, Jon, Ryan, Jeremy, Hengstenberg, Carey, and University of Vermont, unpub. M.S. thesis, 139 p. A3. Armstrong, T.R., 1993, Tectonic evolution of the Taconian hinterland, Granville- pamphlet, 56 p. Rosencrantz, Eric, 2003, Bedrock geology of the Underhill quadrangle, Vermont: R23. Ratcliffe, N.M., and Burton, W.C., 1989, Preliminary bedrock map of the Stratton T8. Thompson, P.J., and Thompson, T.B., 1997, unpublished data for the Mt. Mansfield, Hancock area, central Vermont: Burlington, Vt., University of Vermont, unpub. M.S. Vermont Geological Survey Open-File Report VG03–4B, scale 1:24,000. (Also avail- M22. Myers, P.B., Jr., 1964, Geology of the Vermont portion of the Averill quadrangle, Ver- Mountain quadrangle, Vermont: U.S. Geological Survey Open-File Report 89–200, 1 Jeffersonville, and Bolton Mountain 7.5-minute quadrangles, Vermont. WEST thesis, 199 p. J1. Johansson, W.I., 1963, Geology of the Lunenburg-Brunswick-Guildhall area, Vermont: NORTON AVERILL LOVERING able at http://www.anr.state.vt.us/dec/geo/ofreps.htm.) mont: Vermont Geological Survey Bulletin 27, 69 p., 2 pls., including geologic map, pl., scale 1:24,000, includes pamphlet, 11 p. (Also available at HIGHGATE SHELDON NEWPORT MORGAN MONADNOCK CENTER ENOSBURG JAY PEAK NEWPORT POND D4, H5, MOUNTAIN Vermont Geological Survey Bulletin 22, 86 p., 3 pls., scale 1:62,500. (Also available T9. Thompson, P.J., and Thompson, T.B., 1998, Digital bedrock geologic map of the John- SPRINGS FALLS RICHFORD NORTH TROY CENTER CENTER MOUNTAIN D4, L4, ROUSESD4, POINT E3, EAST ALBURG D9, R28 CHARLESTON scale 1:62,500. (Also available at http://www.anr.state.vt.us/dec/geo/ bulletins.htm.) http://pubs.usgs.gov/of/1989/0200/ and http://ngmdb.usgs.gov/Prodesc/ D2, D9 C3, D6, D9 C3, D9, R29, D4, D9,H4, G6,H5 H5 M21, M22 D4, H5, L4, A4. Armstrong, T.R., and Ratcliffe, N.M., 1998, Digital and preliminary bedrock geologic D4, M10, M15 S3, S4 D2, D9, S1 S13, S14 D9, G6, H4 D4, D9, H4, D4, G9, H5 D4, G9, H5 M21, M22 D9. Doolan, B.L., Hatch, N.L., Jr., Thompson, P.J., Gale, M.H., and Kim, Jonathan, 2002, at http://www.anr.state.vt.us/dec/geo/bulletins.htm.) son quadrangle, Vermont: Vermont Geological Survey Open-File Report VG98–2, 2 M10, M15 M10, M13, M15, M21, M22 map of the Townshend 7.5 × 15 minute quadrangle, Vermont: U.S. Geological Sur- proddesc_18947.htm.) unpublished data for the Mt. Mansfield 30 × 60 minute quadrangle, Vermont. pls., scale 1:24,000; VG98–2b, database for VG98–2. (Also available at vey Open-File Report 98–335–A, 1 sheet, scale 1:24,000; 98–335–B, digital data- O1. O’Loughlin, S.B., and Stanley, R.S., 1986, Bedrock geology of the Mount Abraham- R24. Ratcliffe, N.M., and Burton, W.C., 1996, Digital bedrock geologic map of the Weston http://www.anr.state.vt.us/dec/geo/ofreps.htm.) base for part A, 3 disks (3.5 inches). (Also available as Vermont Geological Survey D10. Dorsey, R.J., 1983, Geological synthesis of the Milton quadrangle, northwestern Ver- K1. Kim, J., 1997, Bedrock geologic map of parts of the Eden, Albany, Lowell, and Irasburg Lincoln Gap area, central Vermont: Vermont Geological Survey Special Bulletin 6, quadrangle, Vermont: U.S. Geological Survey Open-File Report 96–526–A, 2 pls., Open-File Reports VG98–335A and 335B at http://www.anr.state.vt.us/ mont; A new interpretation: Burlington, Vt., University of Vermont, unpub. B.S. the- quadrangles: Vermont Geological Survey Open-File Report VG97–5, 6 p., 2 pls., T10. Thompson, P.J., and Thompson, T.B., 1999, Digital bedrock geologic map of the Mt. NORTH HAZENS LOWELL 29 p., 3 pls., scale 1:12,000. (Also available at http://www.anr.state.vt.us/ scale 1:24,000; 96–526–B, digital database for part A, 2 disks (3.5 inches). (Part A HERO ORLEANS NOTCH IRASBURG SPECTACLEPOND BLOOMFIELD TINKERVILLE dec/geo/digitofr.htm.) sis, 103 p. scale 1:24,000. Mansfield quadrangle, Vermont: Vermont Geological Survey Open-File Report BEEKMAN- ST. ALBANS FAIRFIELD MTS. D4, D9, WESTMORE D4, H5, dec/geo/specbulls.htm.) is available at http://pubs.usgs.gov/of/1996/0526a/.) (Also available as Vermont TOWN D4, E3, ST. ALBANS BAY D2, D9 BAKERSFIELDD2, D9, COLD HOLLOW B1, B2, B6, C3, B1, B2, D4, ISLAND POND D4, H5, L4, D4, M10, M10, M13, B5, B6, C3, D9, H4, D4, G9, H5 D4, G9,H5 VG99–3, 3 pls., scale 1:24,000. (Also available at http://www.anr.state.vt.us/ D7, D9 C8, D9,H5, G1, K1, G2, D4, D9, H4, H5 M21, M22 M21, M22 M10, M15 M14, M15 M14, M15 M18, T3 C8, D9, G1, H5, K1 H4, H5, H15 Kim, Jonathan, Gale, Marjorie, King, S.M., Orsi, C.M., and Pascale, L.R., 2003, Bed- Geological Survey Open-File Reports VG96–526A and 526B at S13, S14 A5. Armstrong, T.R., 1994, Bedrock geology of the Moretown Formation, North River Ig- D11. Dorsey, R.J., Agnew, P.C., Carter, C.M., Rosencrantz, E.J., and Stanley, R.S., 1983, K2. D4, M10, M15 G2, G3, S2 O2. Osberg, P.H., 1959, The stratigraphy and structure of the Coxe Mountain area, Ver- dec/geo/ofreps.htm.) neous Suite and associated metasedimentary/metavolcanic rocks of the Connecticut Bedrock geology of the Milton quadrangle, northwestern Vermont: Vermont Geologi- rock geology of the Montpelier quadrangle, Vermont: Vermont Geological Survey http://www.anr.state.vt.us/dec/geo/ofreps.htm.) mont, trip F in New England Intercollegiate Geological Conference, 51st Annual Valley Belt, Brattleboro and Newfane [7.5 × 15 minute] quadrangles, Windham cal Survey Special Bulletin 3, 14 p., 4 pls., scales 1:24,000 and 1:62,500. (Also Open-File Report VG03–1, 1 pl., scale 1:24,000. (Also available at T11. Thompson, T.B., Thompson, Peter, and Doolan, Barry, 2004, Bedrock geologic map Meeting, Rutland, Vermont, 1959: p. 45–52. (Edited by E-an Zen.) R25. Ratcliffe, N.M., Potter, D.B., and Stanley, R.S., 1993, Bedrock geologic map of the Wil- County, Vermont: U.S. Geological Survey Open-File Report 94–247, 26 p., 2 pls., available at http://www.anr.state.vt.us/dec/geo/specbulls.htm.) http://www.anr.state.vt.us/dec/geo/ofreps.htm.) of the Hinesburg quadrangle, Vermont: Vermont Geological Survey Open-File Re- liamstown and North Adams quadrangles, Massachusetts and Vermont, and part of EDEN SOUTH GEORGIA MILTON scale 1:24,000. port VG04–2, 2 pls., scale 1:24,000, and geodatabase.