- Anderson, R. Ernest; Barnhard, T. P., 1993, Heterogeneous Neogene strain and its bearing on horizontal extension and horizontal and vertical contraction at the margin of the extensional orogen, Mormon Mountains area, Nevada and Utah: U.S.G.P.O. ; Dept. of the Interior, U.S. Geological Survey, Bulletin 2011, iv, 43 p. ill., maps (col.) ;28 cm.,
- Bargar, Keith E.; Keith, Terry E.; Beeson, Melvin H., 1993, Hydrothermal alteration in the Mount Hood area, Oregon: U.S. Geological Survey, Bulletin 2054, v, 70 p. ill., maps ;28 cm.,
- Baskerville, Charles A.; Lee, Fitzhugh T.; Ratte, Charles A., 1993, Landslide hazards in Vermont: U.S.G.P.O. ; U.S. Geological Survey, Map Distribution, Bulletin 2043, iv, 23 p. ill., maps ;28 cm.,
- Baum, Rex L.; Fleming, Robert W.; Johnson, Arvid M., 1993, Kinematics of the Aspen Grove landslide, Ephraim Canyon, central Utah: Bulletin 1842-F, p. F1-F34; 1 plate in pocket,
- Baum, Rex L.; Johnson, Arvid M., 1993, Steady movement of landslides in fine-grained soils; a model for sliding over an irregular slip surface: Bulletin 1842-D, p. D1-D28,
- Berendsen, Pieter; Barczuk, Andrzej; edited by Day, Warren C.; Lane, Diane E., 1993, Petrography and correlation of Precambrian clastic sedimentary rocks associated with the Midcontinent Rift System: Bulletin 1989-E, p. E1-E20, illus. incl. 3 tables, geol. sketch maps, 56 refs,
- Bornhorst, Theodore J.; Johnson, Rodney C.; edited by Sims, P. K.; Carter, L. M. H., 1993, Geology of volcanic rocks in the south half of the Ishpeming greenstone belt, Michigan: Bulletin 1904-P, p. P1-P13, illus. incl. strat. cols., geol. sketch maps, 28 refs,
- Brown, Janet L., 1993, Sedimentology and depositional history of the lower Paleocene Tullock Member of the Fort Union Formation, Powder River basin, Wyoming and Montana: Bulletin 1917-L, p. L1-L42, illus. incl. charts, sketch maps, 150 refs,
- Carlson, Diane H., 1993, Geology and geochemistry of the Coulee Dam Intrusive Suite and associated younger intrusive rocks, Colville Batholith, Washington: U.S. G.P.O. ; For sale by Book and Open-File Report Sales, U.S. Geological Survey, Bulletin 1846, v, 36 p. ill., maps (1 col.) ;28 cm.,
- Chao, E. C., 1993, Comparison of the Cretaceous-Tertiary boundary impact events and the 0.77-Ma Australasian tektite event; relevance to mass extinction: U.S.G.P.O. ; U.S. Geological Survey, Map Distribution, Bulletin 2050, iv, 22 p. ill. ;28 cm.,
- Clark, Sandra H.; Spanksi, G. T.; Hadley, D. G.; Hofstra, A. H., 1993, Geology and mineral resource potential of the Chattanooga 1 degree x 2 degrees Quadrangle, Tennessee and North Carolina; a preliminary assessment: U.S. G.P.O. ; U.S. Geological Survey, Map Distribution, Bulletin 2005, v, 35 p. ill., maps ;28 cm.,
- Dalrymple, G. Brent; Izett, G. A.; Snee, L. W.; Obradovich, J. D., 1993, 40Ar/39Ar age spectra and total-fusion ages of tektites from Cretaceous-Tertiary boundary sedimentary rocks in the Beloc Formation, Haiti: U.S. G.P.O. ; U.S. Geological Survey, Book and Open-File Report Sales [distributor], Bulletin 2065, iii, 20 p. ill. (some col.) ;28 cm.,
- Du Bray, E. A., 1993, The Seaman volcanic center; a rare middle Tertiary stratovolcano in southern Nevada: U.S. G.P.O. ; USGS Map Distribution, Bulletin 2052, iii, 19 p. ill., map ;28 cm.,
- du Bray, Edward A.; Yager, Douglas B.; Pallister, John S., 1993, Chiricahua Peak Quadrangle, Cochise County, Arizona; analytic data and geologic sample catalog: Bulletin 2021-C, p. C1-C22, illus. incl. 210 anal., 7 tables, geol. sketch map, 18 refs,
- Dubiel, Russell F.; Brown, Janet L., 1993, Sedimentologic analysis of cores from the Upper Triassic Chinle Formation and the Lower Permian Cutler Formation, Lisbon Valley, Utah: Bulletin 2000-E, p. E1-E40, illus. incl. sects., 1 table, sketch maps, 58 refs,
- Edited by Dusel-Bacon, Cynthia; Till, Alison B., 1993, Geologic studies in Alaska by the U.S. Geological Survey, 1992: U.S. G.P.O. ; For Sale by Book and Open-File Report Sales [distributor], U.S. Geological Survey, Bulletin 2068, vi, 250 p. ill., maps ;28 cm.,
- edited by Ewert, John W.; Swanson, Donald A.; translated by von Hillebrandt-Andrade, Christa, 1993, Vigilando volcanes : tecnicas y estrategias empleadas por el personal del Observatorio Vulcanologico Cascades, 1980-90: U.S. G.P.O. ; U.S. Geological Survey, Cascades Volcano Observatory [distributor], Bulletin 1966, vi, 237 p. :ill., maps ;28 cm.,
- Edited by Jacobson, Robert B., 1993, Geomorphic studies of the storm and flood of November 3-5, 1985, in the upper Potomac and Cheat River basins in West Virginia and Virginia: U.S. G.P.O. ; U.S. Geological Survey, Map Distribution, Bulletin 1981, 187 p. ill., maps ;28 cm.,
- Edited by Kane, Jean S., 1993, The USGS reference sample Devonian Ohio Shale SDO-1: U.S. Geological Survey, Bulletin 2046, 65 p. ill. ;28 cm.,
- edited by Powers, Richard Blake, 1993, Petroleum exploration plays and resource estimates, 1989, onshore United States; Region 1, Alaska; Region 2, Pacific Coast: U.S. G.P.O., Bulletin 2034-A, p. A1-A138,
- Edited by Roen, John B.; Kepferle, Roy Clark., 1993, Petroleum geology of the Devonian and Mississippian black shale of eastern North America: Geological Survey (U.S.) Bulletin 1909, 1 v. (various pagings); Four maps and 17 ill. on 13 folded leaves in pocket,
- Edited by Sando, William Jasper, 1993, Shorter contributions to paleontology and stratigraphy, 1992: U.S. G.P.O. ; U.S. Geological Survey, Book and Open-File Report Sales [distributor], Bulletin 2024, 2 v. in 1, 43 p. ill. ;28 cm.,
- Edited by Schwab, William C.; Lee, Homa J.; Twichell, David C., 1993, Submarine landslides; selected studies in the U.S. Exclusive Economic Zone: U.S. G.P.O. ; U.S. Geological Survey, Map Distribution, Bulletin 2002, vi, 204 p. ill., maps (some col.) ;28 cm.,
- Edited by Scott, Richard W., Jr.; Detra, Pamela S.; Berger, Byron R., 1993, Advances related to United States and international mineral resources; developing frameworks and exploration technologies: U.S. G.P.O. ; U.S. Geological Survey, USGS Map Distribution, Bulletin 2039, iv, 277 p. ill., maps (some col.) ;28 cm.,
- Edited by Sherrod, David R.; Nielson, Jane E., 1993, Tertiary stratigraphy of highly extended terranes, California, Arizona, and Nevada: U.S. G.P.O. ; For sale by the Books and Open-File Report Sales, U.S. Geological Survey, Federal Center [distributor], Bulletin 2053, xii, 250 p., 3 plates in pocket, ill., maps ;28 cm.,
- Epstein, Jack B., 1993, Stratigraphy of Silurian rocks in Shawangunk Mountains, southeastern New York, including a historical review of nomenclature: Bulletin 1839-L, 40 p.; L1-L40, l pl.,
- Epstein, Jack Burton; Lyttle, Peter T., 1993, Geology of the New Tripoli Quadrangle, Lehigh, Berks, Schuylkill, and Carbon counties, Pennsylvania: U.S.G.P.O. ; U.S. Geological Survey, Map Distribution, Bulletin 1994, iv, 19 p. ill., map (col.) ;28 cm.,
- Friedman, Irving; Norton, Daniel R.; Hutchinson, R. A., 1993, Monitoring of thermal activity in southwestern Yellowstone National Park and vicinity, 1980-1993: U.S. G.P.O. ; For sale by U.S. Geological Survey, Map Distribution, Bulletin 2067, iv, 19 p. ill., maps ;28 cm.,
- Greene, Robert C., 1993, Stratigraphy of the late Proterozoic Murdama Group, Saudi Arabia: U.S. Geological Survey, Bulletin 1976, v, 59 p. ill., maps ;28 cm.,
- Gregg, William J.; edited by Sims, P. K.; Carter, L. M. H., 1993, Structural geology of parautochthonous and allochthonous terranes of the Penokean orogeny in upper Michigan; comparisons with northern Appalachian tectonics: Bulletin 1904-Q, p. Q1-Q28, illus. incl. 2 tables, sketch maps, 100 refs,
- Hansley, P. L.; Sheppard, R. A., 1993, Distribution and properties of clinoptilolite-bearing tuffs in the Upper Jurassic Morrison Formation on the Ute Mountain Ute Reservation, southwestern Colorado and northwestern New Mexico: Bulletin 2061-A, p. A1-A11,
- Huffman, A. Curtis, Jr.; Condon, Steven M., 1993, Stratigraphy, structure, and paleogeography of Pennsylvanian and Permian rocks, San Juan Basin and adjacent areas, Utah, Colorado, Arizona, and New Mexico: Bulletin 1808-O, p. O1-O44; 18 plates in pocket,
- John, David A.; Stewart, J. H.; Kilburn, J. E.; Silberling, N. J.; Rowan, L. C., 1993, Geology and mineral resources of the Reno 1 degree x 2 degrees Quadrangle, Nevada and California: U.S.G.P.O. ; U.S. Geological Survey, Book and Open-File Report Sales [distributor], Bulletin 2019, v, 65 p. ill., maps (some col.) ;28 cm.,
- Johnson, Edward A., 1993, Depositional history of Triassic rocks in the area of the Powder River basin, northeastern Wyoming and southeastern Montana: Bulletin 1917-P, p. P1-P30, illus. incl. charts, sketch maps, 170 refs,
- Johnson, Ronald C.; Nuccio, Vito F., 1993, Surface vitrinite reflectance study of the Uinta and Piceance basins and adjacent areas, eastern Utah and western Colorado; implications for the development of Laramide basins and uplifts: Bulletin 1787-DD, p. DD1-D38; 2 plates in pocket,
- Ketner, Keith B.; Murchey, Benita L.; Stamm, Robert G.; Wardlaw, Bruce R., 1993, Paleozoic and Mesozoic rocks of Mount Ichabod and Dorsey Canyon, Elko County, Nevada; evidence for post-Early Triassic emplacement of the Roberts Mountains and Golconda allochthons: Bulletin 1988-D, p. D1-D12, illus. incl. sect., 1 table, geol. sketch maps, 22 refs,
- Klasner, J. S.; Sims, P. K.; edited by Carter, L. M. H., 1993, Thick-skinned, south-verging backthrusting in the Felch and Calumet troughs area of the Penokean Orogen, northern Michigan: Bulletin 1904-L, p. L1-L28, illus. incl. sects., 1 table, sketch maps, 43 refs,
- Lawton, Timothy F.; Talling, Peter J.; Hobbs, Robert S.; Trexler, James H., Jr.; Weiss, Malcolm P.; Burbank, Douglas W., 1993, Structure and stratigraphy of Upper Cretaceous and Paleogene strata (North Horn Formation), eastern San Pitch Mountains, Utah; sedimentation at the front of the Sevier orogenic belt: Bulletin 1787-II, p. II1-II33; 2 plates in pocket,
- Machette, M. N.; Crone, A. J.; Bowman, J. R., 1993, Geologic investigations of the 1986 Marryat Creek, Australia, earthquake; implications for paleoseismicity in stable continental regions: Bulletin 2032-B, p. B1-B28, 2 plates in pocket,
- Macke, David L., 1993, Cambrian through Mississippian rocks of the Powder River basin, Wyoming, Montana, and adjacent areas: Bulletin 1917-M, p. M1-M174, illus. incl. sects., sketch maps, 375 refs,
- Mamet, Bernard L.; Pinard, Sylvie; Armstrong, Augustus K., 1993, Micropaleontological zonation (foraminifers, algae) and stratigraphy, Carboniferous Peratrovich Formation, southeastern Alaska: U.S. Geological Survey, Bulletin 2031, vi, 32 p., 16 p. of plates, ill., maps ;28 cm.,
- Miller, Betty M., 1993, Object-oriented expert systems and their applications to sedimentary basin analysis: U.S. G.P.O. ; U.S. Geological Survey, USGS Map Distribution, Bulletin 2048, iv, 31 p. ill. ;28 cm.,
- Nachatilo, S. A.; Bauer, R. L., 1993, Structural analysis of Archean rocks in the Negaunee area, Michigan; constraints on Archean versus early Proterozoic deformation: Bulletin 1904-O, p. O1-O29, illus. incl. block diags., 1 table, geol. sketch map, 99 refs,
- Nichols, K. M.; Silberling, N. J., 1993, Upper Devonian to Upper Mississippian strata of the Antler foreland in the Leppy Hills, easternmost northern Nevada: Bulletin 1988-G, p. G1-G13, illus. incl. strat. cols., sketch maps, 13 refs,
- Page, Norman J.; Gray, Floyd; Griscom, Andrew., 1993, Petrology, mineralogy, and geochemistry of the Lower Coon Mountain Pluton, Northern California, with respect to the distribution of platinum-group elements: U.S. G.P.O. ; For sale by Book and Open-File Report Sales, U.S. Geological Survey, Bulletin 2014, v, 75 p. ill., maps ;29 cm.,
- Personius, Stephen F., 1993, Age and origin of the fluvial terraces in the central Coast Range, western Oregon: U.S. G.P.O. ; Dept. of the Interior, U.S. Geological Survey : U.S.G.S. Map Distribution, Bulletin 2038, v, 56 p. ill., maps ;28 cm.,
- Piper, D. Z.; Isaacs, C. M.; Medrano, M. D.; Keller, Margaret A., 1993, Cooccurrence of Fe-, Fe-Ca-, and Ca-phosphate minerals in concretions within the Monterey Formation; a record of uplift of the Santa Maria Basin, California: Bulletin 1995-C, p. C1-C15, illus. incl. 6 tables, sketch map, 56 refs,
- Rankin, Douglas W., 1993, The volcanogenic Mount Rogers Formation and the overlying glaciogenic Konnarock Formation; two late Proterozoic units in southwestern Virginia: U.S.G.P.O. ; U.S. Geological Survey, Map Distribution, Bulletin 2029, 26 p,
- Roehler, Henry W., 1993, Coastal sedimentation along a segment of the interior seaway of North America, Upper Cretaceous Baxter Shale, and Blair and Rock Springs formations, Rock Springs Uplift, southwest Wyoming: U.S. G.P.O. ; U.S. Geological Survey, Map Distribution, Bulletin 2051, v, 31 p. ill., maps ;28 cm.,
- Sando, William J.; Mamet, B. L., 1993, Coralliferous carbonate shelves of Mississippian age, west side of Antler Orogen, central Nevada: Bulletin 1988-F, p. F1-F29, illus. incl. 5 tables, sketch maps, 52 refs,
- Seeland, David A., 1993, Origin of thick lower Tertiary coal beds in the Powder River basin, Wyoming and Montana; some paleogeographic constraints: Bulletin 1917-Q, p. Q1-Q13, illus. incl. block diag., sketch maps, 52 refs,
- Sheehan, Peter M.; Pandolfi, John M.; Ketner, Keith B., 1993, Isolated carbonate bodies composed of stacked debris-flow deposits on a fine-grained carbonate lower slope of Devonian age, Antelope Peak, Elko County, Nevada: Bulletin 1988-E, p. E1-E12, illus. incl. 1 table, sketch map, 46 refs,
- Sims, P. K.; Day, W. C.; edited by Carter, L. M. H., 1993, The Great Lakes tectonic zone: Bulletin 1904-S, p. S1-S11, illus. incl. geol. sketch map, 47 refs,
- Sims, P. K.; Schulz, K. J.; DeWitt, Ed; Brasaemle, Bruce, 1993, Petrography and geochemistry of early Proterozoic granitoid rocks in Wisconsin magmatic terranes of Penokean Orogen, northern Wisconsin: Bulletin 1904-J, p. J1-J31, illus. incl. 2 tables, geol. sketch maps, 48 refs,
- Till, Alison B.; Yount, M. E.; Riehle, J. R., 1993, Redoubt Volcano, southern Alaska; a hazard assessment based on eruptive activity through 1968: U.S. G.P.O. ; U.S. Geological Survey, Book and Open-File Report Sales [distributor], Bulletin 1996, v, 19 p. ill., maps (some col.) ;28 cm.,
- Toth, Margo I.; Wilson, A. B.; Cookro, T. M.; Bankey, Viki; Lee, G. K.; Case, J. E.; Dersch, John S., 1993, Mineral resource potential and geology of the White River National Forest and the Dillon Ranger District of the Arapaho National Forest, Colorado, with a section on salable commodities: U.S.G.P.O. ; Dept. of the Interior, U.S. Geological Survey, Map Distribution, Bulletin 2035, ix, 117 p. ill., maps (some col.) ;28 cm.,
- U. S. Geological Survey; Corporacion Venezolana de Guayana., 1993, Geology and mineral resource assessment of the Venezuelan Guayana Shield: U.S. G.P.O. ; For sale by USGS Map Distribution, Bulletin 2062, vii, 121 p. ill. (some col.), col. maps ;28 cm.,
- Verbeek, Earl R.; Grout, Marilyn A., 1993, Geometry and structural evolution of gilsonite dikes in the eastern Uinta Basin, Utah: Bulletin 1787-HH, p. HH1-HH42; 1 plate in pocket,
- Witt, Wallace de, Jr., 1993, Principal oil and gas plays in the Appalachian Basin (Province 131): Bulletin 1839-I, iii, 37 : ill., maps ; 28 cm.,
- Wolfe, Jack A., 1993, A method of obtaining climatic parameters from leaf assemblages: U.S. G.P.O. ; For sale by USGS Map Distribution, Bulletin 2040, v, 71 p., 5 plates in pocket, ill., maps ;28 cm.,
