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Regional Geology of Washington State

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Regional Geology of Washington State w u ::, 0 "' UJ Raymond Lasmanis and Eric S. Cheney, Conveners WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES Bulletin 80 1994 .~ WASHINGTON STATE DEPARTMENTOF \t:h~.--·.·····• 11} Natural Resources ................·.· ······························ Jennifer M. Belcher - Commissioner of Public Lands Kaleen Cottingham - Supervisor Division of Geology and Earth Resources Regional Geology of Washington State Raymond Lasmanis and Eric S. Cheney, Convenors WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES Bulletin 80 1994 ~ltjWAS HINGTON STATE DEPARTMENTOF .[.ll!'il Natural Resources ·.:,:,:,:,:,:,:·:·:·:·:·:·:·:·:·:·:·:·:·:·:·:·:·· Jennifer M. Belcher - Commissioner of Public Lands Kaleen Cottingham - Supervisor Division of Geology and Earth Resources WASmNGTON DEPARTMENT OF NATURAL RESOURCES Jennifer M. Belcher- Commissioner of Public Lands Kaleen Cottingham-Supervisor DIVISION OF GEOLOGY AND EARTH RESOURCFS Raymond Lasmanis-State Geologist J. Eric Schuster-Assistant Stale Geologist Printing of this Bulletin was supported by a generous contribution from the Westinghouse Hanford Company. This report is available from: Publications Washington Department of Natural Resources Division of Geology and Earth Resources P.O. Box 47007 Olympia, WA 98504-7007 Price $8.80 Tax (WA residents only) -2.Q Total $9.50 Mail orders must be prepaid; please add $1.00 to each order for postage and handling. Make checks payable to the Department of Natural Resources. Printed on recycled paper Printed in the United States of America Preface The first symposium on the Regional Geology of Washing­ we convened in May 1992 at Eugene, Oregon, again in con­ ton was held at the annual meeting of the Cordilleran Sec­ junction with the annual meeting of the Cordilleran Section tion of the Geological Society of America in April 1982, of the Geological Society of America. The symposium was and a volume containing most of the proceedings was even­ enormously successful; probably more than 400 people at­ tually published (Schuster, 1987). Bates McKee and Eric tended parts of it. Table I lists the authors and titles of their Cheney were the convenors of that symposium. The history papers. A comparison of this table with the 1982 program of the symposium and volume are discussed in Schuster (Schuster, 1987, p. viii-ix) reveals that only about 20 per­ (1987). cent of the authors were repeat performers. Those of us Since 1982, so much additional progress has been made with more than a few gray hairs look Lo the under-40 crowd in the understanding of the regional geology of Washington in the other 80 percent Lo promote a third symposium in that we thought the time ripe for a second symposium. This 2002. Table 1. Symposium program, May 12, 1992. Asterisks indicate papers represented only by abstracts at the back of this book The Second Symposium on the Regional Geology The Second Symposium on the Regional Geology of the State of Washington, Part I of the State of Washington, Part II Raymond Lasmanis and Tunothy J. Walsh, Presiding Park D. Snavely, Jr., and Brian S. Butler, Presiding Introduction 8:00 A E. S. Cheney, R. J. Stewart: The Cenozoic interregional Darrel S. Cowan: CordiJleran tectonic scuing of unconformity-bounded sequences of central and Washington* 8:10 A eastern Washington 1:00 P Fred K. Miller: The Windermere Group and Late Joseph A. Vance, Robert B. Miller: Another look at the Proterozoic tectonics in northeastern Washington 8:30 A Fraser River-Straight Creek fault (FRSCF)* 1:20 P Kenneth F. Fox, Jr.: Metamorphic core complexes Samuel Y. Johnson, J . C. Yount: Toward a better within an Eocene extensional province understanding of the Paleogene paleogeography of in north-central Washington 8:50 A the Puget Lowland, western Washington* 1:40 P Stephen E. Box: Detachment origin for Republic Donald A . Swanson, Russell C. Evarts: Tertiary graben, northeastern Washington* 9: 10 A magmatism and tectonism in an E-W transect across the Cascade arc in southern Washington* 2:00 P E. S. Cheney, M. G. Rasmussen, M. G Miller: Lithologies, structure, and stacking order of R. S. Babcock, C. A . Suczek, D. C. Engebretson: Quesnellia in north-central Washington 9:30 A Geology of the Crescent terrane, Olympic Peninsula, WA 2:20 P V. R . Todd, S. E. Shaw, H. A. Hur/ow, R. J . Fleck: The Okanogan range batholith, north-central Mark T. Brandon, Joseph A. Vance: Age and tectonic Washington-Root of a Late Jurassic(?)-Early evolution of Lhe Olympic subduction complex as Cretaceous continental-margin arc* 9:50 A inferred from fission-track ages for detrital zircons* 2:40 P J. / . Garver. M. F. McGroder. D. Mohrig, J . Bourgeois: S. P. Reidel, K . R. Fecht, K. A. Lindsey, N. P. Campbell: The stratigraphic record of mid-Cretaceous orogeny Post-Columbia River Basalt structure and in the Methow basin, Washington and British stratigraphy of south-central Washington 3:20 P Columbia* 10:25 A Stephen C. Porter: Alpine glaciation of western Robert B. Miller. R. A. Haugerud, D. L . Whitney, S. A. Washington* 3:40 P Bowring, T. 8. Housh: Tectonics of the NE margin Alan J. Busacca, Eric V. McDonald: Regional of the Cascade crystalline core, Washington 10:45 A sedimentation of Late Quaternary loess on the E. H. Brown: Barie patterns in the Cascades crystalline Columbia Plateau-Source areas and wind core, Washington 11:05 A distribution patterns 4:00 P Ralph A. Haugerud, Rowland W. Tabor. Charles D. D. J. Easterbrook, G. W. Berger, R. Walter: Laser argon Blome: Pre-Tertiary stratigraphy and multiple and TL dating of early and middle Pleistocene orogeny in the western North Cascades, glaciations in the Puget Lowland, Washington 4:20 P Washington* 11:25 A Derek B . Booth, Barry Gold.stein: Patterns and Wilbert R. Danner: Stratigraphy and biostratigraphy of processes of landscape development by the Puget the Paleozoic and Early Mesozoic rocks of San Juan Lobe ice sheet 4:40 P Islands and northwestern Cascade Mountains, Brian F. Atwater: Prehistoric earthquakes in Western Washington* 11 :45 A Washington 5:00 P Ill Table 1 also illustrates that, as in the case of the first Cascadia (McKee, 1972) can still be recommended for its symposium, not all papers were submitted for publication. lucid style, good descriptions, and fine photographs, but it We thank the Geological Society of America for allowing was published before the plate tectonics era. abstracts of the unpublished papers to be republished here. R.L. E.S.C. We thank authors and reviewers for their expeditious ef­ forts. We are grateful to the following, who provided addi­ REFERENCES CITED tional reviews: Joe D. Dragovich; Kenneth F. Fox, Jr.; Galster, R. W., chairman, 1989, Engineering geology in Washing­ Nancy L. Joseph; William S. Lingley, Jr.; J. Eric Schuster; ton: Washington Division of Geology and Earth Resources Bulletin 78, 2 v. 1,234 p. Patrick Spencer; and Timothy J. Walsh. Members of the publications staff of the Division of Geology and Earth Re­ Joseph, N. L., chairwoman, 1989, Geologic guidebook for Wash· ington and adjacent areas: Washington Division of Geology sources contributed to this volume as well: Nancy A. and Earth Resources Information Circular 86, 369 p. Eberle and Keith G. Ikerd assisted with illustrations, Jari Lasmanis, Raymond, 1991, The geology of Washington: Rocks Roloff dlesigned and prepared layout, and Katherine Reed and Minerals, v. 66, no. 4, p. 262-277. served as volume editor. McKee, Bates, 1972, Cascadia-The geologic evolution of the Pa­ We believe that this volume will prove useful to a broad cific Northwest: McGraw-Hill Book Co., 394 p. cross section of geological scientists working in the Pacific Schuster, J. E., editor, 1987, Selected papers on the geology of Northwest. For those who seek an overview of the geology Washington: Washington Division of Geology and Earth Re­ of the state in a limited number of volumes, we recommend sources Bulletin 77, 395 p. Schuster (1987), Joseph (1989), Galster (1989), and Las­ Stoffel, K. L.; Joseph, N. L.; Waggoner, S. Z.; Gulick, C. W; manis (1991, including other articles in that issue), and this Korosec, M.A.; Bunning, B. B., 1991, Geologic map of Washington-Northeast quadrant: Washington Division of volume. Geological maps that are particularly useful are Geology and Earth Resources Geologic Map GM-39, 36 p., the 1:250,000-scale maps compiled by the Division of Ge­ 3 sheets, scales 1:250,000 and 1:625,000. ology and Earth Resources: Walsh and others (1987), Stof­ Walsh, T. J.; Korosec, M. A.; Phillips, W. M.; Logan, R. L.; fel and others (1991), and the southeast quadrant being Schasse, H. W., 1987, Geologic map of Washington-South­ compiled by J. E. Schuster and others. This series will be west quadrant: Washington Division of Geology and Earth Resources Geologic Map GM-34, 28 p., 2 sheets, scale complete when the northwest quadrant map is published in 1:250,000. about 1995; several articles in this volume discuss the regional geology of the northwest part of the state. iv Contents 1 The Windermere Group and Late Proterozoic tectonics in northeastern Washington and northern Idaho Fred K. Miller 21 Geology of metamorphic core complexes and associated extensional structures in north-central Washington Kenneth F. Fox, Jr. 49 Major faults, stratigraphy, and identity of Quesnellia in Washington and adjacent British Columbia Eric S. Cheney, M. G. Rasmussen, and M. G. Miller 73 Tectonostratigraphic framework of the northeastern Cascades Robert B. Miller, Ralph A. Haugerud, Fred Murphy, and Lynda S. Nicholson 93 Tectonic evolution of the Cascades crystalline core in the Cascade River area, Washington E. H. Brown, J. A. Cary, B. E. Dougan, J. D. Dragovich, S. M. Fluke, and D. P. McShane ll5 Cenozoic unconformity-bounded sequences of central and eastern Washington Eric S. Cheney 141 The Crescent "terrane", Olympic Peninsula and southern Vancouver Island R. S. Babcock, C.
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