Hopeck, J., and Sharp, W. (1985), Finite strain in the Martinsburg Formation, Lehigh Water Gap, Pennsylvania; EOS v. 66, n. 18, pp. 365-366.
Hopeck, J., and Sharp, W. (1986), New constraints on Alleghenian deformation at Lehigh Water Gap, Pennsylvania, Geol. Soc. Amer. Abstr, w. Prog., v. 18, n. 1, p. 23.
Ellis. M. S., and Hopeck, J. T. (1986), Geologic map showing coal beds in the Dakota Sandstone, Harley Dome quadrangle and parts of the Bitter Creek Well, Westwater 4 SE, and Westwater 4 SW quadrangles, Colorado and Utah; U. S. G. S. Miscellaneous Field Studies Map MF-1800.
Hopeck, J. (1987), Preliminary bedrock geology of the Wytopitlock 15-minute quadrangle, eastern Maine: report submitted to Maine Geol. Survey.
Hopeck, J., Ludman, A., and Hon, R. (1988), Ages of tectonic fabrics in the Bottle Lake Complex and surrounding rocks, eastern Maine, Geol. Soc. Amer. Abstr. w. Prog. v. 20, p. 23.
Ludman, A., and Hopeck, J. (1988), Classification and significance of faults in eastern Maine, in: Geological Society of Maine Guidebook for Trips in East-Central Maine, p. 1 - 12.
Pollock, S. G., Roy, D. C., Ludman, A., Hopeck, J., Hall, B. A., and Repetski, J. (1988), Terrane accretion in the northern Appalachians of the northeastern United States and Canada, Geol. Soc. Amer. Abstr. w. Prog. v. 20, n. 7, p. 124.
Hopeck, J. (1989), Revised bedrock geology of the Wytopitlock and Springfield 15-minute quadrangles, eastern Maine: report submitted to Maine Geol. Survey.
Hopeck, J., Ludman, A., and Brock, P. C. (1989), Acadian evolution of the Miramichi Anticlinorium and Aroostook - Matapedia Belt, eastern Maine, Geol. Soc. Amer. Abstr. w. Prog. v. 21, p. 23.
Doll, W. G., Costain, J. K., Coruh, C., Domoracki, W. J., Potts, S. S., Ludman, A., Hopeck, J. and six others (1989), Results of a seismic reflection and gravity study of the Bottle Lake Complex, Maine; EOS, v. 70, p. 401.
Doll, W. G., Costain, J. K., Domoracki, W. J., Coruh, C., Ludman, A., and Hopeck, J. (1989), Interpretation of seismic reflection lines crossing the Norumbega Fault and Bottle Lake Plutonic Complex, eastern Maine; Geol. Soc. Amer. Abstr. w. Prog., v. 21, n. 1, p. 320.
Ludman, A., Hopeck, J., Costain, J. K., Domoracki, W. J., Coruh, C., and Doll, W. G. (1990), Seismic reflection evidence for the northwest limit of Avalon in east-central Maine; Geol. Soc. Amer. Abstr. w. Prog., v. 22, n. 2, p. 32.
Doll, W. G., Costain, J. K., Domoracki, W. J., Coruh, C., Ludman, A., and Hopeck, J. (1990), Geophysical and geological characterization of tectonic features in the Bottle Lake Plutonic Complex and Norumbega Fault Zone, eastern Maine, 1990 Quebec - Maine - New Brunswick Appalachian Workshop.
Hopeck, J. (1990) Tectonic Fabrics of the Passadumkeag River Pluton, Bottle Lake Complex, Springfield and Scraggly Lake 15-minute Quadrangles, 1990, 7 p. report and map (1:62,500), Maine Geological Survey Catalog Number 90-25b.
Hopeck, J. (1991), Faulting and related fabrics in the Miramichi and Aroostook - Matapedia tracts, in: Ludman, A., ed., Geology of the Coastal Lithotectonic Block and Neighboring Terranes, Eastern Maine and Southern New Brunswick, New England Intercollegiate Geological Conference 83rd Annual Meeting, p. 294 - 308.
Hopeck, J. (1991), Post-Caradocian stratigraphy of the Aroostook - Matapedia and Miramichi lithotectonic blocks, in: Ludman, A., ed., Geology of the Coastal Lithotectonic Block and Neighboring Terranes, Eastern Maine and Southern New Brunswick, New England Intercollegiate Geological Conference 83rd Annual Meeting, p. 157 - 168.
Ludman, A., Hopeck, J. T., and Brock, P. C. (1993), Nature of the Acadian orogeny in eastern Maine, p. 67 - 84 in: The Acadian Orogeny: Recent Studies in New England, Maritime Canada, and the Autochthonous Foreland, Geol. Soc. Amer. Spec. Pub. 275, D. C. Roy and J. W. Skehan, eds.
Hopeck, J. (1994) Post-Caradocian Strata of the Miramichi Anticlinorium and their Relation to the Aroostook - Matapedia Belt; in: Hanson, L., ed., New England Intercollegiate Geological Conference 86th Annual Meeting, p. A4-1 - A4-16.
Marvinney, R.G., Loiselle, M. C., Hopeck, J. T., Braley, D., and Kruger, J. A. (1994) Arsenic in Maine groundwater: an example from Buxton, Maine, Proceedings, FOCUS Conference on Eastern Regional Groundwater Issues.
Marvinney, R.G., Loiselle, M. C., Hopeck, J. T., Braley, D., and Kruger, J. A. (1995) Arsenic in Maine groundwater: an example from Buxton, Maine, Geol. Soc. Amer. Abstr. w. Prog. v. 27, n. 1.
Hopeck, J. T., and DuBois, M. S. (1995), Integration of urban watershed monitoring with high school earth science curricula: a practical example; Topsham, Maine; Geol. Soc. Amer. Abstr. w. Prog., v. 27, n. 6, p. A-351.
Doll, W. G., Costain, J. K., Domoracki, W. J., Coruh, C., Ludman, A., and Hopeck, J. (1996), Seismic reflection evidence for the evolution of a transcurrent fault system: the Norumbega fault zone, Maine; Geology, v. 24, n. 3, pp. 251-254.
Hopeck, J. (1996), Adverse impacts on groundwater quality from stormwater infiltration at two sites in southern Maine; Proceedings, Ground Water Protection Council Annual Forum. pp. 1-10.
Mower, B. J., DiFranco, J., Bacon, L., Courtemanch, D., Schmidt, V., and Hopeck, J. (1997), Fish Tissue Contamination in Maine Lakes, Maine Department of Environmental Protection, ME DEPLW97-6, 63p.
Courtemanch, D., Hopeck, J., and Ostrowski, K (1997), Mercury Contamination in Lakes Downwind of Holtrachem Manufacturing Co., Appendix 5 in: Initial Evaluation and Recommendations on Mercury in Maine, Land and Water Resources Council 1997 Annual Report.
Hopeck, J., and Loiselle, M. (1998), Assessment of Regional Intrinsic Vulnerability and Risk to Bedrock Aquifers using Geographic Information Systems, Geol. Soc. Amer. Abstr. w. Prog. v. 30, n. 7, p. A-181.