!aSOURCECREFERENCECþ AD002Coats, R.R., 1956, Geology of northern Adak Island, Alaska: U.S. Geological Survey Bulletin 1028-C, p. 47-67, map, scale 1:50,000. AD003Fraser, G.D., and Snyder, G.I., 1959, Geology of southern Adak and Kagalaska Island, Alaska: U.S. Geological Survey Bulletin 1028-M, p. 371-408, map, scale 1:125,000. AD004Simons, F.S., and Mathewson, D.E., 1955, Geology of Great Sitkin Island, Alaska: U.S. Geological Survey Bulletin 1028-B, p. 21-43, Plate 5, scale 1:50,000. AD005Coats, R.R., 1956, Geology of Northern Kanaga Island, Alaska: U.S. Geological Survey Bulletin 1028-D, p. 69-81, Plate 15, scale 1:25,000. AD006Fraser, G.D., and Barnett, H.F., 1959, Geology of the Delarof and Westernmost Andreanof Islands, Aleutian Islands, Alaska: U.S. Geological Survey Bulletin 1028-I, p. 211-248, Plate 28, scale 1:25,000. AD007Miller, T.P., Waythomas, C.F., and Nye, C.J., 2003, Preliminary geologic map of Kanaga Volcano, Alaska: U.S. Geological Survey Open-file Report 03-113, 2 sheets, scale 1:20,000 AD008Fraser, G.D., and Barnett, H.F., 1959, Geology of the Delarof and Westernmost Andreanof Islands, Aleutian Islands, Alaska: U.S. Geological Survey Bulletin 1028-I, p. 211-248, Plate 27, scale 1:250,000. AD009Waythomas, C.F, Miller, T.P., and Nye, C.J., 2003, Preliminary geologic map of Great Sitkin Volcano, Alaska: U.S. Geological Survey Open-file Report 03-36, 1 sheet, scale 1:63,360. AD010Coats, R.R., 1956, Reconnaissance geology of some western Aleutian Islands, Alaska: U.S. Geological Survey Bulletin 1028-E, p. 83-100, Plate 17, approx. scale 1:1,000,000. AD011Scholl, D.W., Greene, H.G., and Marlow, M.S., 1970, Eocene age of the Adak "Paleozoic(?)" rocks, Aleutian Islands, Alaska: Geological Society of America Bulletin, v. 81, p. 3583-3592. AD012Waythomas, C.F., 1995, Surficial geologic map of northern Adak Island, Alaska: U.S. Geological Survey Open-File Report 95-128, Plate 1, scale 1: 50,000. AD013Coombs, Michele, 2005, unpublished geologic mapping on Tanaga volcano, western Aleutian Islands, written commun. April, 2005. AD100Cameron, C.P., and Stone, D.B., 1970, Outline geology of the Aleutian Islands with paleomagnetic data from Shemya and Adak Islands: Alaska, Univ. Geophysical Institute Research Report UAG R-213, 153 p. AD101DeLong, S.E., and McDowell, F.W., 1975, K-Ar ages from the Near Islands, western Aleutian Islands, Alaska; indication of a mid-Oligocene thermal event: Geology, v. 3, no. 12, p. 691-694. AD102Hein, J.R., and McLean, Hugh, 1980, Paleogene sedimentary and volcanogenic rocks from Adak Island, central Aleutian Islands, Alaska: U.S. Geological Survey Professional Paper 1126-E, 16 p. AD103Marlow, M.S., Scholl, D.W., Buffington, E.C., and Alpha T.R., 1973, Tectonic history of the central Aleutian arc: Geological Society of America Bulletin, v. 84, p. 1555-1574. AD104Scholl, D.W., Marlow, M.S., MacLeod, N.S., and Buffington, E.C., 1976, Episodic Aleutian Ridge igneous activity: Implications of Miocene and younger submarine volcanism west of Buldir Island: Geological Society of America Bulletin, v. 87, p. 547-557. AT002Gates, Olcott, Powers, H.A., and Wilcox, R.E., 1971, Geology of the Near Islands, Alaska, with a section on Surficial geology by J.P. Schafer: U.S. Geological Survey Bulletin 1028-U, p. 709-822, 3 maps, scale 1:63,360. AT003Gates, Olcott, Powers, H.A., and Wilcox, R.E., 1971, Geology of the Near Islands, Alaska, with a section on Surficial geology by J.P. Schafer (Geologic map of Shemya): U.S. Geological Survey Bulletin 1028-U, Figure 115, pg. 776. AT004Gates, Olcott, Powers, H.A., and Wilcox, R.E., 1971, Geology of the Near Islands, Alaska, with a section on Surficial geology by J.P. Schafer: U.S. Geological Survey Bulletin 1028-U, Plate 81 (Agattu Island), 1:63,360. GI002Coats, R.R., 1959, Geologic reconnaissance of Gareloi Island, Aleutian Islands, Alaska: U.S. Geological Survey Bulletin 1028-J, p. 249-256, 1 plate, no. 33, approx scale 1:50,000. GI003Fraser, G.D., and Barnett, H.F., 1959, Geology of the Delarof and Westernmost Andreanof Islands, Aleutian Islands, Alaska: U.S. Geological Survey Bulletin 1028-I, p. 211-248, Plates 29, 30, scale 1:250,000 and 1:25,000. GI004Coats, R.R., 1956, Reconnaissance geology of some western Aleutian Islands, Alaska: U.S. Geological Survey Bulletin 1028-E, p. 83-100, Plate 17, approx. scale 1:1,000,000. GI005Fraser, G.D., and Barnett, H.F., 1959, Geology of the Delarof and Westernmost Andreanof Islands, Aleutian Islands, Alaska: U.S. Geological Survey Bulletin 1028-I, p. 211-248, Plate 27, scale 1:250,000. GI006Coombs, Michele, 2005, unpublished geologic mapping on Tanaga and Gareloi volcanoes, western Aleutian Islands, written commun. April, 2005. KK002Coats, R.R., Nelson, W.H., Lewis, R.Q., and Powers, H.A., 1961, Geologic reconnaissance of Kiska Island, Aleutian Islands, Alaska: U.S. Geological Survey Bulletin 1028-R, Plate 71, scale 1:63,360. KK003Coats, R.R., 1953, Geology of Buldir Island, Aleutian Islands, Alaska: U.S. Geological Survey Bulletin 989-A, 26 p. RI002Coats, R.R., 1959, Geologic reconnaissance of Semisopochnoi Island, Western Aleutian Islands, Alaska: U.S. Geological Survey Bulletin 1028-O, Plate 59. RI003Snyder, G.L., 1959, Geology of Little Sitkin Island, Alaska: U.S. Geological Survey Bulletin 1028-H, Plate 23, scale 1:20,000. RI004Lewis, R.Q., Nelson, W.H., and Powers, H.A., 1960, Geology of Rat Island, Aleutian Islands, Alaska: U.S. Geological Survey Bulletin 1028-Q, Plate 70, scale 1:63,360. RI005Powers, H.A., Coats, R.R., and Nelson, W.H., 1960, Geology and submarine physiography of Amchitka Island Alaska: U.S. Geological Survey Bulletin 1028-P, p.521-554, 1 plate, scale approx. 1:1:100,000. RI006Nelson, W.H., 1959, Geology of Segula, Davidof, and Khvostof Islands Alaska: U.S. Geological Survey Bulletin 1028-K, p. 257-266, 2 plates, scale 1:25,000. RI007Carr, W.J., Quinlivan, W.D., and Gard, L.M., Jr., 1970, Age and stratigraphic relations of Amchitka, Banjo Point, and Chitka Point Formations, Amchitka Island, Aleutian Islands, Alaska, in Cohee, G.V., Bates, R.G., and Wright, W.B., eds., Changes in stra