OFR 2003-22, Geologic Map of the Mcneil Island 7.5
WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN FILE REPORT 2003-22 Division of Geology and Earth Resources Ron Teissere - State Geologist INTRODUCTION DESCRIPTION OF MAP UNITS Vashon till—Unsorted and highly compacted mixture ACKNOWLEDGMENTS Mix, A. C., 1987, The oxygen-isotope record of glaciation. In Qgt of clay, silt, sand, and gravel deposited directly by Ruddiman, W. F.; Wright, H. E., Jr., editors, North America and The McNeil Island quadrangle is located at the south end of Puget Quaternary Unconsolidated Deposits Support for identification of tephra was provided by Franklin F. glacier ice; gray where fresh and light yellowish brown adjacent oceans during the last glaciation: Geological Society Sound. The quadrangle includes McNeil, Anderson, and Ketron Foit, Jr. (Wash. State Univ.) and Andrei M. Sarna-Wojcicki and Qgof where oxidized; very low permeability; most commonly of America DNAG Geology of North America, v. K-3, p. 111- Qgt Islands and parts of Fox Island, Key Peninsula, and Fort Lewis HOLOCENE NONGLACIAL DEPOSITS Thomas W. Sisson (U.S. Geological Survey). We have also matrix-supported but may be clast-supported; matrix 125. Military Reservation. All of the landmass in the quadrangle falls benefited greatly from discussions with Derek Booth and Kathy Qgo Fill—Clay, silt, sand, gravel, organic matter, shells, rip- generally feels more gritty than outwash sands when within Pierce County. The quadrangle is rural residential and Qf Troost (Univ. of Wash.), Ray Wells and Brian Sherrod (U.S. Morrison, R. B., 1991, Introduction. In Morrison, R. B., editor, Qb rap, and debris emplaced to elevate the land surface and rubbed between fingers, due to being more angular than agricultural land.
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