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Tomkeieff, S. I.. "A Contribution to the Petrology of the Whin Sill." Mineralogical Magazine 22 (1929): 100-119.
Tramutoli, Mariano, Tullio Pescatore, Maria Rosaria Senatore, and Lorenzo Mirabile. "Interpretation of Reflection High Resolution Seismic Profiles Through the Gulf of Taranto (Ionian Sea, Eastern Mediterranean). The Structure of Apennine and Apulia Deposits." Bollettino di Oceanologica Teorica ed Applicata 2, no. 1 (1984): 33-52.
Treasher, Ray C.. Field Identification of Minerals for Oregon Prospectors and Collectors In Department of Geology and Mineral Resources Bulletin. Vol. 16. Oregon Department of Geology and Mineral Industries, 1940.
Trehu, Anne, Steve Azevedo, John Nabalek, Jim Luetgert, Walter Mooney, Isa Asudeh, and Brad Isbell. Seismic Refraction Data Across the Coast Range and Willamette Basin in Central Oregon: The 1991 Pacific Northwest Experiment In U. S. Geological Survey Open-File Report. Vol. 93-319. Department of the Interior, 1993.
Trimble, Donald E.. Geology of Portland, Oregon and Adjacent Areas In U. S. Geological Survey Bulletin. Vol. 1119. Department of the Interior, 1963.
Trumbull, James, John Lyman, J. F. Pepper, and E. M. Thomasson. An Introduction to the Geology and Mineral Resources of the Continental Shelves of the Americas In U. S. Geological Survey Bulletin. Vol. 1067. Department of the Interior, 1958.
Tucker, Burling W.. "State Mineralogist's Report." California Journal of Mines and Geology 42, no. 4 (1946): 317-430.
Turner, Donald Lloyd. Potassium Argon Dates Concerning the Tertiary Foraminiferal Time Scale and San Andreas Fault Displacement In Geology. Vol. Ph.D. Geology Ph.D. Berkeley, California: University of California, 1960.
Turner, F. E.. "Stratigraphy and Mollusca of the Eocene of Western Oregon." Geological Society of America Special Paper, no. 10 (1938): 1-130.
Turner, Donald L.. "Potassium-Argon Dating of Pacific Coast Miocene Foraminiferal Stages." Geological Society of America Special Paper 124 (1970): 91-129.
Tuttle, O. F.. "Origin of the Contrasting Mineralogy of Extrusive and Plutonic Salic Rocks." Journal of Geology 60, no. 2 (1952): 107-124.
Twenhofel, W. H.. Soil: the Most Valuable Mineral Resource, its Origin, Destruction and Preservation In Department of Geology and Mineral Resources Bulletin. Vol. 26. Oregon Department of Geology and Mineral Industries, 1944.
Twenhofel, W. H.. Mineralogical and Physical Composition of the Sands of the Oregon Coast from Coos Bay to the Mouth of the Columbia River In Department of Geology and Mineral Industries Bulletin. Vol. 30. Oregon Department of Geology and Mineral Industries, 1946.
Tysdal, Russell G.. "Thrust Faults and Back Thrusts in Madison Range of Southwestern Montana Foreland." American Association of Petroleum Geologists Bulletin 70, no. 4 (1986): 360-376.
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U. S. Department of the Interior. A Plan for the Accelerated Development of Marine Natural Resources: A Report to the National Council on Marine Resources and Engineering Development In Marine Resources Development Program., 1966.
U. S. Department of the Interior. Natural Resources of Washington., 1963.
U.S. Geological Survey. Field Trip Guidebook: Sedimentary Environments of the South Texas Coast In Third Annual Principal Investigators (University Contracts) Meeting., 1969.
U.S. Geological Survey. Atlantic Continental Shelf and Slope of the United States: Petrology of the Sand Fraction of Sediments, Northern New Jersey to Southern Florida In U. S. Geological Survey Professional Paper. Department of the Interior, 1968.
U.S. Geological Survey. Goals, Strategies, Priorities and Tasks of a National Landslide Hazard-Reduction Program In U. S. Geological Survey Open-File Report. Vol. 81-987. Department of the Interior, 1981.
U.S. Geological Survey, and National Oceanic and Atmospheric Administration. The San Fernando, California, Earthquake of February 9, 1971 In U. S. Geological Survey Professional Paper. Vol. 733. Department of the Interior, 1971.
U.S. Geological Survey. Mineral Resources of California In Division of Mines and Geology Bulletin. Vol. 191. California Department of Conservation, 1966.
U.S. Geological Survey. The Petroleum System--Status of Research and Methods, 1990 In U. S. Geological Survey Bulletin, Edited by Leslie B. Magoon. Vol. 1912. Department of the Interior, 1989.
U.S. Geological Survey. United States Geological Survey Yearbook, Fiscal Year 1980. Department of the Interior, 1980.
U.S. Geological Survey. Earth Science in the Public Service In U. S. Geological Survey Professional Paper. Vol. 921. Department of the Interior, 1974.
U.S. Geological Survey. Petroleum Systems of the United States In U. S. Geological Survey Bulletin, Edited by Leslie B. Magoon. Vol. 1870. Department of the Interior, 1988.

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