DOCSLIB.ORG

The Petrography and Tectonic Significance of the Blue Mountain

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
The Petrography and Tectonic Significance of the Blue Mountain Western Washington University Western CEDAR WWU Graduate School Collection WWU Graduate and Undergraduate Scholarship Summer 1987 The etrP ography and Tectonic Significance of the Blue Mountain Unit, Olympic Peninsula, Washington Jon M. Einarsen Western Washington University Follow this and additional works at: https://cedar.wwu.edu/wwuet Part of the Geology Commons Recommended Citation Einarsen, Jon M., "The eP trography and Tectonic Significance of the Blue Mountain Unit, Olympic Peninsula, Washington" (1987). WWU Graduate School Collection. 840. https://cedar.wwu.edu/wwuet/840 This Masters Thesis is brought to you for free and open access by the WWU Graduate and Undergraduate Scholarship at Western CEDAR. It has been accepted for inclusion in WWU Graduate School Collection by an authorized administrator of Western CEDAR. For more information, please contact [email protected]. MASTER'S THESIS In presenting this thesis in partial fulfillment of the requirements for a master's degree at Western Washington University, I agree that the Library shal’l make its copies freely available for inspection. I further agree that extensive copying of this thesis is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this thesis for commercial purposes, or for financial gain, shall not be allowed without my written permission. Signature Date Bellingham, Washington 98Z25 □ (206) 676-3000 THE PETEDGRAPHY AND TECTCNIC SIGNIFICANCE OF THE BLUE MOUNTAIN UNIT, OLYMPIC PENINSULA, WASHINGTON A Thesis Presented To The Faculty of WESTERN WASHINGTON UNIVERSITY In Partial Fullfillment of the Requirements for the Degree Master of Science by Jon M. Einarsen Augiast, 1987 MASTER'S THESIS In presenting this thesis in partial fulfillment of the requirements for a master's degree at Western Washington University, I grant to Western Washington University the non-exclusive royalty-free right to archive, reproduce, distribute, and display the thesis in any and all forms, including electronic format, via any digital library mechanisms maintained by WWU. I represent and warrant this is my original work and does not infringe or violate any rights of others. I warrant that I have obtained written permissions from the owner of any third party copyrighted material included in these files. I acknowledge that I retain ownership rights to the copyright of this work, including but not limited to the right to use all or part of this work in future works, such as articles or books. Library users are granted permission for individual, research and non-commercial reproduction of this work for educational purposes only. Any further digital posting of this document requires specific permission from the author. Any copying or publication of this thesis for commercial purposes, or for financial gain, is not allowed without my written permission. Name: Signature: Date: THE PETROGRAPHY AND TECTONIC SIGNIFICANCE OF THE BLUE MOUNTAIN UNIT, OLYMPIC PENINSULA, WASHINGTOJ By Jon M. Einarsen Accepted in Partial Completion of the Requirements for the Degree Master of Science Dean of Graduate School ADVISORY COMMITTEE ABSTEU^CT The sedimentary rocks of the early to middle Eocene Blue Mountain unit compose the stratigrajiiic base of the otherwise predominantly basaltic Crescent Formation in the Olynpic Peninsula, Washington. In the study area, primarily in northeastern portions of the Olympic Peninsula, the Blue Mountain unit consists of two distinct petrofacies, one a plagioclase-rich feldspathic arenite, the other a chert-rich lithic arenite. A third petrofacies is a feldspathic-lithic arenite and is a petrologic combination of the two distinct petrofacies. The source areas for the plagioclase-rich and chert-rich petrofacies are interpreted to be the Coast Plutonic Complex and San Jxian Islands, respectively. The source area for the feldspathic-lithic arenite is interpreted to be a combination of the Coast Plutonic Complex and the San Juan Islands. Limited sedimentologic data suggest that the Blue Mountain unit represents a sukxnarine fan. Together, the Blue Mountain unit and basalt of the Crescent Formation compose the base of the Crescent terrane as exposed in the Olynpic Peninsula. The Blue Mountain unit-basalt contact is depositional, and therefore the base of the Crescent terrane in this locality consists of continentally-derived sedimentary rocks. This relationship requires the basalt of the Crescent terrane to have originated near a continental landmass, probably North America. Furthermore, paleonagnetic data shew that the Crescent terrane and the correlative Siletz terrane in Oregon have not undergone significant poleward displacement. Relative plate motions indicate that the Kula and FatalIon plates i were moving rapidly both poleward and perpendicular to the North American plate in the early Paleogene. Although uncertainties are large, the presence of interbedded continentally-derived sedimentary rocks, including the Blue Mountain unit, and the lack of poleward displacement suggest that the Crescent and Siletz terranes did not originate on the Kula or Farallon plates. Instead, the terranes pr<±)ably formed inboard of the Kula- FaralIon-North American plate boundary, in sane type of marginal basin. ACKNCMLEDGEaVENTS I could probably write a masters thesis in the Humanities about all the help and encouragement I've gotten during my stay here at Western. First I'd like to thank my family, Don and Marge Einarsen, and my sister Jaye Craig. They have always had nothing but encouragement for me, even during my somewhat less than brilliant undergraduate days. They've always been there viien I get in trouble (usually financially). Going home has been scxnething to look forward to, kncwing that smiles, good cheer, booze, food and smokes await. I love them all very much and they have been, and always will be, my best friends. Without the assistance of Terri Flake and Eileen Wray, I might have had trouble getting through my first few months as a graduate student. Terri and Eileen unselfishly gave of their time to help me get started, and I thank them very much. I am indebted to the 1984 Olympic Crew: Kurt Anderson, Jennie De Chant, Ron Moyer, Joel Purdy, Bill Rauch, Tim Roberts, and Michaela Young for introducing me to the geology of the Olympic Peninsula. Ron Moyer was especially helpful, and we spent many hours discussing the tectonics of the Crescent terrane before Ron graduated. Since that time discussions with Jennie, Joel, and Tim, as well as with Ben Adams, Sue Bream, Ken Clark, and Alice Shilhanek have continued, and I ^preciate their willingness to discuss ideas and thoughts with me. Much of what I (think I) understand about the geology of the Olympics came out of discussions with these students. three advisors, Chris Suczek, Scott Babcock, and Dave Engebretson have been perfect in every way. They never gave me a bad time about ideas I realized later had no foundation in the universe as it is presently iii understood. I've gotten nothing but good advice from them, and I consider them friends as well as mentors. Their attitude and encouragement have changed my life. Special thanks go to Chris for taking on a student of questionable background without hesitation, even v^en she was already overloaded. Her superhuman turnaround rate and all-round good-naturedness have been greatly appreciated. Scott Babcock is the best chalk-man I have ever known. The light that Tanya Atwater talked about in In Suspect Terrane came on for me one day near the end of Scotts 420 class. Scott has an ability to shew students the wonder of geology that is usually reserved for ancient and wise veterans of many field seasons, such as ^^l Beck. About two weeks into Dave Engebretsons plate tectonics class he shewed us the bend in the Hawaiian-Emperor Chain and vhat it meant, about a week after that someone walking by outside of class belched and Dave leaned out the door and said "good one". I became his slave forever. I've thought a long time about how to acknowledge Dave, but nothing sounds right. About all I can say is that I'll never be able to repay Dave for all the inspiration he has given me. Dave introduced me to that aspect of geology that I find most exciting, the Big Picture. He taught me to not just examine a geologic map with a handlens, but to also stare at it fron across the room (preferably at 3 in the morning). Special thanks to Dave and Debbie Engebretson for organizing the AGU field trips to California. Thanks to Ben Adams, Jennie De Chant, Pat Goldstrand, and especially Ken Clark and Ron Eliason for help in the field; to Phil Bigelow, Lief Christensen, Terri Plake, and Julie Shultz for help with petrography; to Craig Erdman and Tim Redfield for help with the conputers. Extra thanks to Ken for a lot of encouragement, for teaching me to keep my head down in the field, and for great discussions about the Crescent terrane. Thanks to Ned Brown and Myrl Beck for sharing their knowledge and ideas, and for iv taking time to discuss them with me. Thanks also to the many students here v^o enriched my knowledge of regional geology, too many to mention but v^ose names can probably be found below. Special thanks to Patty Conbs and Vicki Critchlcw for handling bureaucratic problems with a smile, even though I usually came to than with a problem that needed to be handled yesterday. They never failed to salvage vtotever mess I'd gotten myself into. Vicki saved me on short notice about once a week, especially the last year I was here. Patty CcOTbs was essentially my fourth adviser. Her friendship and sense of humor made each day more enjoyable than it otherwise might have been. I knew I have a good friend in Patty, because I once spilled a chew bucket in her office and she still likes me.
Load more

Recommended publications
  • Seismicity in Cascadia
    Lithos 332–333 (2019) 55–66 Contents lists available at ScienceDirect Lithos journal homepage: www.elsevier.com/locate/lithos Seismicity in Cascadia Michael G. Bostock ⁎, Nikolas I. Christensen, Simon M. Peacock Department of Earth, Ocean and Atmospheric Sciences, The University of British Columbia, Canada article info abstract Article history: We examine spatio-geometric patterns in the density of seismicity within the Cascadia forearc to gain insight into Received 11 July 2018 controls on seismogenesis. Tremor epicenters exhibit the most regular distribution defining a 40–80 km wide 27 December 2018 band extending along almost the entire convergent margin from the southern terminus of Gorda plate subduc- Accepted 23 February 2019 tion in northern California to the central Explorer plate below northern Vancouver Island. Based on prior charac- Available online 26 February 2019 terization of constituent low-frequency earthquakes, the up- and down-dip limits of tremor are assumed to fl Keywords: represent slab isodepth contours at nominal values of 28 and 45 km, between which uids at near-lithostatic Seismicity overpressures are trapped within the subducting slab. Epicenters of earthquakes within the North American Tremor crust are anticorrelated with those of tremor, and concentrated in Washington and northern California where Cascadia they are sandwiched between tremor and the Cascade volcanic arc. Seismicity within the subducting plate Fluids possesses the most limited epicentral distribution. Seismicity is confined to shallow depths off Vancouver Island Subduction and in northern California, and projects to greater depths beneath Washington and southern British Columbia. Forearc Comparison of seismicity patterns with long-wavelength slab geometry and thermo-petrologic constraints sug- Serpentinization gests that seismicity occurrence in Cascadia is governed by an interplay between slab strain, metamorphic dehy- Eclogitization dration within the subducting oceanic plate, and a plate boundary seal that controls where fluids enter the Volcanism overriding plate.
    [Show full text]
  • Bioenergy Harvest, Climate Change, and Forest Carbon in the Oregon Coast Range
    Portland State University PDXScholar Environmental Science and Management Faculty Publications and Presentations Environmental Science and Management 3-2016 Bioenergy Harvest, Climate Change, and Forest Carbon in the Oregon Coast Range Megan K. Creutzburg Portland State University, [email protected] Robert M. Scheller Portland State University, [email protected] Melissa S. Lucash Portland State University, [email protected] Louisa B. Evers Bureau of Land Management Stephen D. LeDuc United States Environmental Protection Agency See next page for additional authors Follow this and additional works at: https://pdxscholar.library.pdx.edu/esm_fac Part of the Forest Biology Commons Let us know how access to this document benefits ou.y Citation Details Creutzburg, M. K., Scheller, R. M., Lucash, M. S., Evers, L. B., LeDuc, S. D., & Johnson, M. G. (2015). Bioenergy harvest, climate change, and forest carbon in the Oregon Coast Range. GCB Bioenergy. This Article is brought to you for free and open access. It has been accepted for inclusion in Environmental Science and Management Faculty Publications and Presentations by an authorized administrator of PDXScholar. Please contact us if we can make this document more accessible: [email protected]. Authors Megan K. Creutzburg, Robert M. Scheller, Melissa S. Lucash, Louisa B. Evers, Stephen D. LeDuc, and Mark G. Johnson This article is available at PDXScholar: https://pdxscholar.library.pdx.edu/esm_fac/118 GCB Bioenergy (2016) 8, 357–370, doi: 10.1111/gcbb.12255 Bioenergy harvest, climate change, and forest carbon in the Oregon Coast Range MEGAN K. CREUTZBURG1 , ROBERT M. SCHELLER1 , MELISSA S. LUCASH1 , LOUISA B. EVERS2 , STEPHEN D. LEDUC3 and MARK G.
    [Show full text]
  • The Oregon Coast Range- Considerations for Ecological Restoration Joe Means Tom Spies Shu-Huei Chen Jane Kertis Pete Teensma
    Forests of the Oregon Coast Range- Considerations for Ecological Restoration Joe Means Tom Spies Shu-huei Chen Jane Kertis Pete Teensma The Oregon Coast Range supports some of the most dense Ocean, so they are warm and often highly productive, com- and productive forests in North America. In the pre-harvest- pared to the Cascade Range and central Oregon forests. ing period these forests arose as a result of large fires-the Isaac's (1949) site index map shows much more site class I largest covering 330,000 ha (Teensma and others 1991). and I1 land in the Coast Range than in the Cascades. In the These fires occurred mostly at intervals of 150 to 300 years. summers, humid maritime air creates a moisture gradient The natural disturbance regime supported a diverse fauna from the coastal western hemlock-Sitka spruce (Tsuga and large populations of anadromous salmonids (salmon heterophylla-Piceasitchensis) zone with periodic fog extend- and related fish). In contrast, the present disturbance re- ing 4 to 10 km inland, through Douglas-fir (Pseudotsuga gime is dominated by patch clearcuts of about 10-30 ha menziesii var. rnenziesii)-western hemlock forests in the superimposed on most of the forest land with agriculture on central zone to the drier interior-valley foothill zone of the flats near rivers. Ages of most managed forests are less Douglas-fir, bigleaf maple (Acer rnacrophyllum)and Oregon than 60 years. This logging has coincided with significant oak (Quercus garryana). declines in suitable habitat and populations of some fish and wildlife species. Some of these species have been nearly extirpated.
    [Show full text]
  • Forest Regions of Washington
    What are the Major Geographic Regions of Washington? Geographic Regions of Washington Okanogan Highlands Puget Basin Columbia Plateau The Rivers of WA & the 5 Geographic Regions Okanogan Highlands Columbia Puget Basin Plateau Direction of flow for WA rivers? Direction of flow for WA the rivers: Okanogan Highlands Puget Basin Columbia Plateau Where does the water end up? All water in WA eventually makes it into the Pacific, but there are 5 main drainage points in WA. The 5 Drainage Points Puget Columbia Pacific Ocean Pacific Sound River Snake River Columbia River Describe: 5 Drainage Points of Washington 1. Snake River -drains rivers in SE WA before it empties into Columbia 2. Columbia River -drains rivers E of Cascades and in S WA, and flows to the Pacific 3. Pacific Ocean - drains rivers W of Coast Range 4. Strait of Juan de Fuca – drains rivers N of Coast Range 5. Puget Sound - drains rivers E of Coast Range & W of Cascade Crest Where does the water end up? Puget Columbia Pacific Ocean Pacific Sound River Snake River Columbia River 5 Regions Descriptions Okanogan Highlands • Forested hills, grassy lowlands – Dry, inland forest. • Climate: Moderately hot, dry summers; cold winters with measurable snowfall • Elevation: 1,000‘ – 6,000’. – Cities: Spokane, Okanogan, Colville – Rivers: Okanogan, Kettle River, Okanogan Spokane, Pend Oreille, Highlands Upper Columbia Okanogan Highlands Okanogan Highlands Columbia Plateau • Semi-desert – Shrub & grasslands. Trees along some stretches of local rivers • Climate: Hot, dry summers; cold winters with occasional snowfall. – Rivers: Columbia, Snake, Yakima, Wenatchee, Palouse – Cities: Yakima, Wenatchee, Tri-Cities, Moses Lake, Ephrata – Hanford Nuclear Reservation Columbia Plateau Columbia Plateau Columbia Plateau Coast Range Olympic Mtns Black Hills Willapa Hills Coast Range • Olympic Mountains, Black Hills, & Willapa Hills – Rain forest on western side of range.
    [Show full text]
  • Mill Creek Watershed Assessment
    Yamhill Basin Council Mill Watershed Assessment December 30, 1999 Funding for the Mill Assessment was provided by the Oregon Watershed Enhancement Board and Resource Assistance for Rural Environments. Mill Assessment Project Manager: Robert J. Bower, Principal Author Co-authors: Chris Lupoli, Linfield College intern, for Riparian section and assisted with Wetlands Conditions section. Tamara Quandt, Linfield College intern, for Sensitive Species section. Editors: Melissa Leoni, Yamhill Basin Council, McMinnville, OR Alison Bower, Forest Ecologist, Corvallis, OR Contributors: Bill Ferber, Salem, Water Resources Department (WRD) Chester Novak, Salem, Bureau Land Management (BLM) Dan Upton, Dallas, Willamette Industries David Anderson, Monmouth, Boise Cascade Dean Anderson, Dallas, Polk County Geographical Information Systems (GIS) Dennis Ades, Salem, Department of Environmental Quality (DEQ) Gary Galovich, Corvallis, Oregon Department Fish and Wildlife (ODFW) Mark Koski, Salem, Bureau of Land Management (BLM) Patrick Hawe, Salem, Bureau of Land Management (BLM) Rob Tracey, McMinnville, Natural Resource and Conservation Service (NRCS) Stan Christensen, McMinnville, Yamhill Soil Water Conservation District Susan Maleki, Corvallis, Oregon Watershed Enhancement Board (OWEB) Warren Tausch, Tillamook Bureau of Land Management (BLM) Special Thanks: ! John Cruickshank, Gooseneck Creek resident for his assistance with the Historical, and Channel Modification sections and in the gathering of historical photographs. ! Gooseneck Creek Watershed Group for their support and guidance. ! John Caputo, Yamhill County GIS. ! BLM and Polk County GIS for providing some of the GIS base layers used to create the maps in this assessment. ! USDA Service Center, Natural Resource Conservation Service, McMinnville, for copying and office support. ! Polk and Yamhill Soil and Water Conservation Districts. ! Nick Varnum, PNG Environmental Inc., Tigard, for assisting with the Hydrology and Channel Habitat Typing sections.
    [Show full text]
  • I I 71-15,061 CAMERON, Christopher Paul, 1940- PALEOMAGNETISM of SHEMYA and ADAK ISLANDS, ALEUTIAN ISLANDS, ALASKA. University O
    Paleomagnetism Of Shemya And Adak Islands, Aleutian Islands, Alaska Item Type Thesis Authors Cameron, Christopher Paul Download date 23/09/2021 14:56:00 Link to Item http://hdl.handle.net/11122/9194 I I 71-15,061 CAMERON, Christopher Paul, 1940- PALEOMAGNETISM OF SHEMYA AND ADAK ISLANDS, ALEUTIAN ISLANDS, ALASKA. University of Alaska, Ph.D., 1970 Geology University Microfilms, A XEROX Company, Ann Arbor, Michigan tutc nTCCTDTATTOM MAC HTTM MTPROFIT.MFD F.VAPTT.Y AS RF.OF.TVF.D Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. PALE01IAGNETISM OF SHEMYA AMD ADAK ISLAUDS, ALEUTIAN ISLANDS, ALASKA A DISSERTATION Presented to the Faculty of the University of Alaska in Partial Fulfillment of the Requirements for the Degree of DOCTOR OF PHILOSOPHY by Christopher P/" Cameron B. S. College, Alaska May, 1970 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. PALEOilAGNETISM OF SHEMYA AND ADAK ISLANDS, ALEUTIAN ISLANDS, ALASKA APPROVED: f t l ‘y l .V" ■i. n ■ ■< < ; N w 1 T *W -C ltc-JL It / _ _ ____ /vx... , ~ ~ 7 YdSV Chairman APPPvOVED: dai£ 3 / 3 0 / 7 0 Dean of the College of Earth Sciences and Mineral Industry Vice President for Research and Advanced Study Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. ABSTRACT Paleomagnetic results are presented for Tertiary and Quaternary volcanic rocks from Shemya and Adak Islands, Aleutian Islands, Alaska. The specimens were collected and measured using standard paleomagnetic methods. Alternating field demagnetization techniques were applied to test the stability of the remanence and to remove unwanted secondary components of magnetization.
    [Show full text]
  • CW3E AR Outlook for California DWR’S AR Program
    CW3E AR Outlook For California DWR’s AR Program Active weather pattern expected to bring heavy rainfall and snowfall to portions of the Western U.S. • A series of storms and landfalling ARs are forecast to bring significant precipitation to portions of Northern California and the Pacific Northwest over the next 7 days • AR 4/AR 5 conditions (based on the Ralph et al. 2019 AR Scale) are possible over coastal Oregon and Washington in association with the second landfalling AR • The highest 7-day precipitation amounts (5–10 inches) are forecast over the Pacific Coast Ranges and Cascade Mountains • More than 2 feet of snow is possible in the higher elevations of the Washington Cascades during the next 48 hours AR Outlook: 12 Nov 2020 Source: NWS Seattle, https://www.weather.gov/sew/ • Strong winds and heavy rainfall/mountain snowfall are expected Friday and Friday night across western Washington • At least 12” of snow are forecast over the Olympic Mountains and Washington Cascades during the next 48 hours • The highest elevations in the Cascades may receive 2–4 feet of snow by Saturday morning AR Outlook: 12 Nov 2020 For California DWR’s AR Program GFS IVT & SLP Forecasts A) Valid 1200 UTC 13 Nov (F-036) B) Valid 0000 UTC 15 Nov (F-72) C) Valid 0000 UTC 17 Nov (F-120) L L Third AR makes H landfall over British H Columbia/Pacific Northwest 1st AR Brief pulse 2nd AR of IVT • The first AR is forecast make landfall over coastal Oregon before 12Z 13 Nov in association with a weaking frontal boundary (Figure A) • After the first AR dissipates,
    [Show full text]
  • Geologic History of Siletzia, a Large Igneous Province in the Oregon And
    Geologic history of Siletzia, a large igneous province in the Oregon and Washington Coast Range: Correlation to the geomagnetic polarity time scale and implications for a long-lived Yellowstone hotspot Wells, R., Bukry, D., Friedman, R., Pyle, D., Duncan, R., Haeussler, P., & Wooden, J. (2014). Geologic history of Siletzia, a large igneous province in the Oregon and Washington Coast Range: Correlation to the geomagnetic polarity time scale and implications for a long-lived Yellowstone hotspot. Geosphere, 10 (4), 692-719. doi:10.1130/GES01018.1 10.1130/GES01018.1 Geological Society of America Version of Record http://cdss.library.oregonstate.edu/sa-termsofuse Downloaded from geosphere.gsapubs.org on September 10, 2014 Geologic history of Siletzia, a large igneous province in the Oregon and Washington Coast Range: Correlation to the geomagnetic polarity time scale and implications for a long-lived Yellowstone hotspot Ray Wells1, David Bukry1, Richard Friedman2, Doug Pyle3, Robert Duncan4, Peter Haeussler5, and Joe Wooden6 1U.S. Geological Survey, 345 Middlefi eld Road, Menlo Park, California 94025-3561, USA 2Pacifi c Centre for Isotopic and Geochemical Research, Department of Earth, Ocean and Atmospheric Sciences, 6339 Stores Road, University of British Columbia, Vancouver, BC V6T 1Z4, Canada 3Department of Geology and Geophysics, University of Hawaii at Manoa, 1680 East West Road, Honolulu, Hawaii 96822, USA 4College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, 104 CEOAS Administration Building, Corvallis, Oregon 97331-5503, USA 5U.S. Geological Survey, 4210 University Drive, Anchorage, Alaska 99508-4626, USA 6School of Earth Sciences, Stanford University, 397 Panama Mall Mitchell Building 101, Stanford, California 94305-2210, USA ABSTRACT frames, the Yellowstone hotspot (YHS) is on southern Vancouver Island (Canada) to Rose- or near an inferred northeast-striking Kula- burg, Oregon (Fig.
    [Show full text]
  • New Titles for Spring 2021 Green Trails Maps Spring
    GREEN TRAILS MAPS SPRING 2021 ORDER FORM recreation • lifestyle • conservation MOUNTAINEERS BOOKS [email protected] 800.553.4453 ext. 2 or fax 800.568.7604 Outside U.S. call 206.223.6303 ext. 2 or fax 206.223.6306 Date: Representative: BILL TO: SHIP TO: Name Name Address Address City State Zip City State Zip Phone Email Ship Via Account # Special Instructions Order # U.S. DISCOUNT SCHEDULE (TRADE ONLY) ■ Terms: Net 30 days. 1 - 4 copies ........................................................................................ 20% ■ Shipping: All others FOB Seattle, except for orders of 25 books or more. FREE 5 - 9 copies ........................................................................................ 40% SHIPPING ON BACKORDERS. ■ Prices subject to change without notice. 10 - 24 copies .................................................................................... 45% ■ New Customers: Credit applications are available for download online at 25 + copies ................................................................45% + Free Freight mountaineersbooks.org/mtn_newstore.cfm. New customers are encouraged to This schedule also applies to single or assorted titles and library orders. prepay initial orders to speed delivery while their account is being set up. NEW TITLES FOR SPRING 2021 Pub Month Title ISBN Price Order February Green Trails Mt. Jefferson, OR No. 557SX 9781680515190 18.00 _____ February Green Trails Snoqualmie Pass, WA No. 207SX 9781680515343 18.00 _____ February Green Trails Wasatch Front Range, UT No. 4091SX 9781680515152 18.00 _____ TOTAL UNITS ORDERED TOTAL RETAIL VALUE OF ORDERED An asterisk (*) signifies limited sales rights outside North America. QTY. CODE TITLE PRICE CASE QTY. CODE TITLE PRICE CASE WASHINGTON ____ 9781680513448 Alpine Lakes East Stuart Range, WA No. 208SX $18.00 ____ 9781680514537 Old Scab Mountain, WA No. 272 $8.00 ____ ____ 9781680513455 Alpine Lakes West Stevens Pass, WA No.
    [Show full text]
  • Geologic Map of the Cascade Head Area, Northwestern Oregon Coast Range (Neskowin, Nestucca Bay, Hebo, and Dolph 7.5 Minute Quadrangles)
    (a-0g) R ago (na. 96-53 14. U.S. DEPARTMENT OF THE INTERIOR , U.S. GEOLOGICAL SURVEY Alatzi2/6 (Of (c,c) - R qo rite 6/6-53y Geologic Map of the Cascade Head Area, Northwestern Oregon Coast Range (Neskowin, Nestucca Bay, Hebo, and Dolph 7.5 minute Quadrangles) by Parke D. Snavely, Jr.', Alan Niem 2 , Florence L. Wong', Norman S. MacLeod 3, and Tracy K. Calhoun 4 with major contributions by Diane L. Minasian' and Wendy Niem2 Open File Report 96-0534 1996 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American stratigraphic code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 1/ U.S. Geological Survey, Menlo Park, CA 94025 2/ Oregon State University, Corvallis, OR 97403 3/ Consultant, Vancouver, WA 98664 4/ U.S. Forest Service, Corvallis, OR 97339 TABLE OF CONTENTS INTRODUCTION 1 GEOLOGIC SKETCH 2 DESCRIPTION OF MAP UNITS SURFICIAL DEPOSITS 7 BEDROCK UNITS Sedimentary and Volcanic Rocks 8 Intrusive Rocks 14 ACKNOWLEDGMENTS 15 REFERENCES CITED 15 MAP SHEETS Geologic Map of the Cascade Head Area, Northwestern Oregon Coast Range, scale 1:24,000, 2 sheets. Geologic Map of the Cascade Head Area, Northwest Oregon Coast Range (Neskowin, Nestucca Bay, Hebo, and Dolph 7.5 minute Quadrangles) by Parke D. Snavely, Jr., Alan Niem, Florence L. Wong, Norman S. MacLeod, and Tracy K. Calhoun with major contributions by Diane L. Minasian and Wendy Niem INTRODUCTION The geology of the Cascade Head (W.W.
    [Show full text]
  • Geologic History of Siletzia, a Large Igneous Province in the Oregon and Washington Coast Range: Correlation to the Geomagnetic
    Downloaded from geosphere.gsapubs.org on May 12, 2015 Geologic history of Siletzia, a large igneous province in the Oregon and Washington Coast Range: Correlation to the geomagnetic polarity time scale and implications for a long-lived Yellowstone hotspot Ray Wells1, David Bukry1, Richard Friedman2, Doug Pyle3, Robert Duncan4, Peter Haeussler5, and Joe Wooden6 1U.S. Geological Survey, 345 Middlefi eld Road, Menlo Park, California 94025-3561, USA 2Pacifi c Centre for Isotopic and Geochemical Research, Department of Earth, Ocean and Atmospheric Sciences, 6339 Stores Road, University of British Columbia, Vancouver, BC V6T 1Z4, Canada 3Department of Geology and Geophysics, University of Hawaii at Manoa, 1680 East West Road, Honolulu, Hawaii 96822, USA 4College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, 104 CEOAS Administration Building, Corvallis, Oregon 97331-5503, USA 5U.S. Geological Survey, 4210 University Drive, Anchorage, Alaska 99508-4626, USA 6School of Earth Sciences, Stanford University, 397 Panama Mall Mitchell Building 101, Stanford, California 94305-2210, USA ABSTRACT frames, the Yellowstone hotspot (YHS) is on southern Vancouver Island (Canada) to Rose- or near an inferred northeast-striking Kula- burg, Oregon (Fig. 1). These volcanic complexes Siletzia is a basaltic Paleocene and Eocene Farallon and/or Resurrection-Farallon ridge include the Siletz River Volcanics (SRV) of Ore- large igneous province in coastal Oregon, between 60 and 50 Ma. In this confi guration, gon, the Crescent Formation of Washington, and Washington, and southern Vancouver Island the YHS could have provided a 56–49 Ma the Metchosin igneous complex of southern Van- that was accreted to North America in the source on the Farallon plate for Siletzia, couver Island.
    [Show full text]
  • Paleontology and Stratigraphy of Eocene Rocks at Pulali Point, Jefferson County, Eastern Olympic Peninsula, Washington
    PALEONTOLOGY AND STRATIGRAPHY OF EOCENE ROCKS AT PULALI POINT, JEFFERSON COUNTY, EASTERN OLYMPIC PENINSULA, WASHINGTON by RICHARD L. SQUIRES, JAMES L. GOEDERT, and KEITH L. KALER WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES REPORT OF INVESTIGATIONS 31 1992 ., WASHINGTON STATE DEPARTMENT OF Natural Resources Brian Boyle • Commhstoner of Public Lands An Steo_r0$ - Superv1sor Division ol Geology and Earth Resources Raymond Lcmnanls. State Geologlsl PALEONTOLOGY AND STRATIGRAPHY OF EOCENE ROCKS AT PULALI POINT, JEFFERSON COUNTY, EASTERN OLYMPIC PENINSULA, WASHINGTON by RICHARD L. SQUIRES, JAMES L. GOEDERT, AND KEITH L. KALER WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES REPORT OF INVESTIGATIONS 31 1992 W>.SHING'TON STAT1r OEPARTMDIT or Natural Resources 8ncll) Bov,. · COmmmioner ot Pu!xk: tancb M $i.atni; S\lp$1'WOJ' DtY!llcn 01 Gtology ahCS £artti ~ Raymond l.mlMn.:I ~Geologist Cover: From left, ?Falsifusus marysvillensis; Pachycrommium clarki; large bivalve, Veneri­ cardia hornii s.s.; Delectopecten cf. D. vancouverensis sanjuanensis; Turritella uvasana hendoni. These specimens are shown at 150 percent of the dimensions on Plates 1 and 3. Use of trade, product, or firm names in this report is for descriptive purposes only and does not consitute endorsement by the Washington Division of Geology and Earth Resources. 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 $ 1.85 Tax (Stale residenl.t only) .15 Total $ 2.00 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.
    [Show full text]