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earthquakes, 1977: U.S. National Technical In-
formation Service Report PB-300 863, 81 p.
Coney, P. J., Silberling, N. J., Jones, D. L., and
Richter, D. H., 1981, Structural relations along
the leading edge of the Wrangellia terrane in
the Clearwater Mountains, Alaska, & Albert, N.
R. D., and Hudson, Travis, eds., The United
States Geological Survey in Alaska: Accom-
plishments during 1979: U.S. Geological Survey
Circular 823-B, p. B53, B56-B59.
Cooper, A. K., Marlow, M. S., Parker, A. W., and
Childs, J. R., 1981, Structure-contour map on
acoustic basement in the Bering Sea: U.S. Geo-
logical Survey Miscellaneous Field Studies Map
MF-1165, scale 1:2,500,000.
Csejtey, B6h, Jr., and St. Aubin, D. R., 1981, Evidence
for northwestward thrusting of the Talkeetna
superterrane, and its regional significance, &
Albert, N. B. D., and Hudson, Travis, eds., The
United States Geological Survey in Alaska:
Accomplishments during 1979: U.S. Geological
Survey Circular 823-B, p. B49-051.
Dahlin, D. C., Rule, A. R,, and Brown, L. L., 1981,
Beneficiation of potential platinum resources
from southeastern Alaska: U.S, Bureau of
Mines Report of Investigations 8553,14 p.
Deafborn, L. L., and Schaefer, D. H., 1981, Surficial
geophysical data for two cross-valley lines in
the middle Eagle River valley, Alaska: U.S.
Geological Survey Open-File Report 80-2000, 14
P*
Decker, John, and Johnson, B. R., 1981, The nature and
position of the Border Ranges fault on
Chichagof Island, 5 Albert, N. R. D., and
Hudson, Travis, eds., The United States Geo-
logical Survey in Alaska: Accomplishments
during 1979: U.S. Geological Survey Circular
823-8, p. B102-B104.
Decker, John, Mullen, M. W., and Schwab, C. E., 1981,
Aeromagnetic profile map of southeastern
Alaska: U.S. Geological Survey Open-File
Report 81-505, scale 1:1,000,000.
Detra, D. E., Risoli, D. A., OtLeary, R. M., Hurrell, J.
A., and Everman, W. E., 1981, Analytical data
and statistical summary from the analyses of
stream-sediment and heavy-mineral-
concentrate samples collected in Bristol Bay,
Ugashik, and Karluk quadrangles, Alaska: U.S.
Geological Survey Open-File Report 81-963, 88
P.
Detterman, R. L., Allaway, W. H., Jr., OILeary, R. M.,
Houston, David, and Risoli, D. A*, 1981, Sample
location map and analytical data for rock
samples collected in 1980, Ugashik and Karluk
quadrangles, Alaska: U.S. Geological Survey
Open-File Report 81-173, scale 1:250,000.
Detterman, R. L., Allaway, W. H., Jr., and Rossiter, R.
H., 1981, Locality map and scintillometer data
for the Ugashik and Karluk quadrangles,
Alaska: U.S. Geological Survey Open-Pile
Report 81-253, scale 1:250,000.
Detterman, R. L., Case, J. E., Cox, D. P., Detra, D.
E., Miller, T. P., and Wilson, F. H., 1981, The
Alaskan Mineral Resource Assessment Pro-
gram: Background information to accompany
folio of geologic and resource maps of the
Chignik and Sutwik Island quadrangles, Alaska:
U.S. Geological Survey Circular 802, 16 p.
Detterman, R. L., Miller, T, P,, Yount, M. E., and
Wilson, F. H., 1981a, Geologic map of the
Chignik and Sutwik Island quadrangles, Alaska:
U.S. Geological Survey Miscellaneous Investigations
Series Map 1-1229, scale 1:250,000.
-1981b, Quaternary geologic map of the Chignik and
Sutwik Island quadrangles, Alaska: U.S. Geological
Survey Miscellaneous Investigations Series
Map 1-1292, scale 1:250,000.
Detterman, R. L., and Spicer, R. A., 1981, New stratigraphic
assignment for rocks along Igilatvik
(Sabbath) Creek, William 0. Douglas Arctic
Wildlife Range, Alaska, &Albert, N. R. D., and
Iiudson, Travis, eds., The United States Geological
Survey in Alaska: Accomplishments during
1979: U.S. Geological Survey Circular 823-B, p.
Bll-B12.
Detterman, R. L., Yount, M. E., and Case, J. E., 1981,
Megafossil sample locality map, checklists, and
stratigraphic sections of the Chignik and Sutwik
Island quadrangles, Alaska: U.S. Geological
Survey Miscellaneous Field Studies Map MF-
1053-N, scale 1:250,000, 2 sheets.
Dickenson, K. A., and Roberts, M. E., 1981, Summary
of radiometric anomalies in Alaska--collected
under contract with the U.S. Department of
Energy: U.S. Geological Survey Open-File
Report 81-428.
Dolton, G. L., Carlson, K. H., Charpentier, R. R.,
Coury, A. B., Crovelli, R. A., Frezon, S. E.,
Kahn, A. S., Lister, 3. H., McMuUin, R. H.,
Pike, R. S., Powers, R. B., Scott, E. W,, and
Varnes, K. L., 1981, Estimates of undiscovered
recoverable resources of conventionally producible
oil and gas in the United States, a summary:
U.S. ~eologbal Survey Open-Pile Report
81-192. 17 p.
Duffield, W. -A., -and Guffanti, Marianne, 1981, The
geothermal research program of the U.S. Geological
Survey: U.S. Geological Survey Open-
File Report 81-564,105 p.
Dutro, J. T., Jr., Armstrong, A. K., Douglass, R. C.,
and Mamet, B. L., 1981, Carboniferous biostratigraphy,
southeastern Alaska, & Albert, N. R.
D., and Hudson, Travis, eds., The United States
Geological Survey in Alaska: Accomplishments
during 1979: U.S. Geological Survey Circular
823-B, p. B94-B96.
Dutro, J. T., Jr., and Patton, W. W., Jr., 1981, Lower
Paleozoic platform carbonate sequence in the
Medfra quadrangle, west-central Alaska, &
Albert, N. R. D., and Hudson, Travis, eds., The
United States Geological Survey in Alaska:
Accomplishments during 1979: U.S. Geological
Survey Circular 823-B, p. B42-B44.
Egbert, R. M., 1981, Petrography and provenance of
Upper Cretaceous sandstone from Saddle Mountain
in the Iniskin-Tuxedni area, lower Cook
Inlet, Alaska, in Albert, N. R. D., and Hudson,
Travis, eds., The United States Geological
Survey in Alaska: Accomplishments during
1979: U.S. Geological Survey Circular 823-B, p.
B88-B90.
Egbert, R, M,, and Magoon, L. B., 1981, Petrography,