John Day Resource Management Plan Environmental Impact Statement G
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John Day Fossil Beds NM: Geology and Paleoenvironments of the Clarno Unit
John Day Fossil Beds NM: Geology and Paleoenvironments of the Clarno Unit JOHN DAY FOSSIL BEDS Geology and Paleoenvironments of the Clarno Unit John Day Fossil Beds National Monument, Oregon GEOLOGY AND PALEOENVIRONMENTS OF THE CLARNO UNIT John Day Fossil Beds National Monument, Oregon By Erick A. Bestland, PhD Erick Bestland and Associates, 1010 Monroe St., Eugene, OR 97402 Gregory J. Retallack, PhD Department of Geological Sciences University of Oregon Eugene, OR 7403-1272 June 28, 1994 Final Report NPS Contract CX-9000-1-10009 TABLE OF CONTENTS joda/bestland-retallack1/index.htm Last Updated: 21-Aug-2007 http://www.nps.gov/history/history/online_books/joda/bestland-retallack1/index.htm[4/18/2014 12:20:25 PM] John Day Fossil Beds NM: Geology and Paleoenvironments of the Clarno Unit (Table of Contents) JOHN DAY FOSSIL BEDS Geology and Paleoenvironments of the Clarno Unit John Day Fossil Beds National Monument, Oregon TABLE OF CONTENTS COVER ABSTRACT ACKNOWLEDGEMENTS CHAPTER I: INTRODUCTION AND REGIONAL GEOLOGY INTRODUCTION PREVIOUS WORK AND REGIONAL GEOLOGY Basement rocks Clarno Formation John Day Formation CHAPTER II: GEOLOGIC FRAMEWORK INTRODUCTION Stratigraphic nomenclature Radiometric age determinations CLARNO FORMATION LITHOSTRATIGRAPHIC UNITS Lower Clarno Formation units Main section JOHN DAY FORMATION LITHOSTRATIGRAPHIC UNITS Lower Big Basin Member Middle and upper Big Basin Member Turtle Cove Member GEOCHEMISTRY OF LAVA FLOW AND TUFF UNITS Basaltic lava flows Geochemistry of andesitic units Geochemistry of tuffs STRUCTURE OF CLARNO -
Field Guides
Downloaded from fieldguides.gsapubs.org on May 6, 2011 Field Guides Paleogene calderas of central and eastern Oregon: Eruptive sources of widespread tuffs in the John Day and Clarno Formations Jason D. McClaughry, Mark L. Ferns, Martin J. Streck, Karyn A. Patridge and Caroline L. Gordon Field Guides 2009;15;407-434 doi: 10.1130/2009.fld015(20) Email alerting services click www.gsapubs.org/cgi/alerts to receive free e-mail alerts when new articles cite this article Subscribe click www.gsapubs.org/subscriptions/ to subscribe to Field Guides Permission request click http://www.geosociety.org/pubs/copyrt.htm#gsa to contact GSA Copyright not claimed on content prepared wholly by U.S. government employees within scope of their employment. Individual scientists are hereby granted permission, without fees or further requests to GSA, to use a single figure, a single table, and/or a brief paragraph of text in subsequent works and to make unlimited copies of items in GSA's journals for noncommercial use in classrooms to further education and science. This file may not be posted to any Web site, but authors may post the abstracts only of their articles on their own or their organization's Web site providing the posting includes a reference to the article's full citation. GSA provides this and other forums for the presentation of diverse opinions and positions by scientists worldwide, regardless of their race, citizenship, gender, religion, or political viewpoint. Opinions presented in this publication do not reflect official positions of the Society. Notes © 2009 Geological Society of America Downloaded from fieldguides.gsapubs.org on May 6, 2011 The Geological Society of America Field Guide 15 2009 Paleogene calderas of central and eastern Oregon: Eruptive sources of widespread tuffs in the John Day and Clarno Formations Jason D. -
View / Open Final Thesis-Thompson A.Pdf
A LITHOSTRATIGRAPHIC ANALYSIS OF THE CROOKED RIVER MASCALL FORMATION, CENTRAL OREGON, USA by ALEXANDRA ELISE THOMPSON A THESIS Presented to the Department of Earth Science and the Robert D. Clark Honors College in partial fulfillment of the requirements for the degree of Bachelor of Science May 2020 An Abstract of the Thesis of Alexandra Thompson for the degree of Bachelor of Science in the Department of Earth Science to be taken May 2020. Title: A Lithostratigraphic Analysis of the Crooked River Mascall Formation, Central Oregon, USA Approved: Samantha S.B. Hopkins, PhD Primary Thesis Advisor This project presents a comprehensive lithostratigraphic record of the Middle Miocene Mascall Formation deposits of the Crooked River Basin in Central Oregon, USA. The Columbia River Basalt Group (CRBG) covered the Crooked River Basin and much of the Pacific Northwest in the middle Miocene (17-13ma), altering the landscape and ecosystem. An analysis of the depositional history of this region in the aftermath of the CRBG eruptions allows us to explore the impact of large scale basalt flows on subsequent basin evolution in a region that lacks extensive lithostratigraphic data. University of Oregon field crews have measured stratigraphic sections in several different locations across the Crooked River basin in order to quantify the differences in depositional history across the basin and reconcile stratigraphy across multiple field expeditions. The regions we have defined for a holistic representation of the region are Twin Buttes in the northwest, Cave Basin in the northeast, Hawk Rim in the southwest, South Fork of the Crooked River – West in the southwest, and South Fork of the Crooked River – East in the southeast. -
Paleontological Resource Inventory and Monitoring, Upper Columbia Basin Network
National Park Service U.S. Department of the Interior Upper Columbia Basin Network Paleontological Resource Inventory and Monitoring UPPER COLUMBIA BASIN NETWORK Paleontological Resource Inventory and Monitoring \ UPPER COLUMBIA BASIN NETWORK Jason P. Kenworthy Inventory and Monitoring Contractor George Washington Memorial Parkway Vincent L. Santucci Chief Ranger George Washington Memorial Parkway Michaleen McNerney Paleontological Intern Seattle, WA Kathryn Snell Paleontological Intern Seattle, WA August 2005 National Park Service, TIC #D-259 NOTE: This report provides baseline paleontological resource data to National Park Service administration and resource management staff. The report contains information regarding the location of non-renewable paleontological resources within NPS units. It is not intended for distribution to the general public. On the Cover: Well-preserved skull of the “Hagerman Horse”, Equus simplicidens , from Hagerman Fossil Beds National Monument. Equus simplicidens is the earliest, most primitive known representative of the modern horse genus Equus and the state fossil of Idaho. For more information, see page 17. Photo: NPS/Smithsonian Institution. How to cite this document: Kenworthy, J.P., V. L. Santucci, M. McNerney, and K. Snell. 2005. Paleontological Resource Inventory and Monitoring, Upper Columbia Basin Network. National Park Service TIC# D-259. TABLE OF CONTENTS INTRODUCTION ...................................................................................................................................1 -
DOGAMI Open-File Report O-02-03, Geologic Framework of the Clarno
STATE OF OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES Suite 965, 800 NE Oregon St., #28 Portland, Oregon 97232 OPEN-FILE REPORT O-02-03 Geologic Framework of the Clarno Unit, John Day Fossil Beds National Monument, Central Oregon By E.A. Bestland1, P.E. Hammond2, D.L.S. Blackwell1, M.A. Kays1, G.J. Retallack1, and J. Stimac1 2002 1 Department of Geological Sciences, University of Oregon, Eugene, OR 97403-1272 2 Department of Geology, Portland State University, Portland, OR 97207-0751 NOTICE The Oregon Department of Geology and Mineral Industries is publishing this paper be- cause the information furthers the mission of the Department. To facilitate timely distribu- tion of the information, this report is published as received from the authors and has not been edited to our usual standards. ii Oregon Department of Geology and Mineral Industries Open-File Report O-02-03 GEOLOGIC FRAMEWORK OF THE CLARNO UNIT, JOHN DAY FOSSIL BEDS NATIONAL MONUMENT, CENTRAL OREGON E.A. Bestland1, P.E. Hammond2, D.L.S. Blackwell1, M.A. Kays1, G.J. Retallack1, J. Stimac1 1Department of Geological Sciences, University of Oregon, Eugene OR 97403-1272 2Department of Geology, Portland State University, Portland OR 97207-07501 ABSTRACT Two major geologic events are recorded in the Above the conglomerates are thick but discontinu- Eocene-Oligocene volcaniclastic strata, volcanic flows, and ous red claystones (claystone of “Red Hill”), which record a paleosols of the Clarno Unit of the John Day Fossil Beds Na- long period of local volcanic quiescence, slow floodplain tional Monument. A major plate tectonic reorganization in aggradation, and long periods of soil formation. -
Geology of Oregon Orr Orr.Pdf
Fifth Edition Geology of Oregon Elizabeth L. Orr William N. Orr University of Oregon Cover: Ripple-marked sand dunes on the Oregon Coast resemble a gigantic fingerprint (photo by Gary Tepfer). Copyright ® 1964 by Ewart M. Baldwin Copyright ® 1976, 1981, 1992, 2000 by Kendall/Hunt Publishing Company ISBN 0-7872-6608-6 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyright owner. Printed in the United States of America 10 98765432 Table of Contents Introduction 1 History of geologic study in Oregon 9 Blue Mountains 21 Klamath Mountains 51 Basin and Range 79 High Lava Plains 103 Deschutes-Columbia Plateau 121 Cascade Mountains 141 Coast Range 167 Willamette Valley 203 Bibliography 223 Glossary 245 Index 251 iii Dedicated to the graduates Acknowledgments Between the fourth and fifth editions of Geology of Oregon, the importance of global tectonics to the state has been ingrained even deeper. Riding on the leading edge of the moving North American plate, Oregon reflects the underlying mecha- nism of the plate collision boundary in virtually all aspects of its geology. In the seven years since the fourth edition was written, an irregular but continuing drumbeat of earthquakes reminds us of the forces beneath our feet and the need to prepare for catastrophic changes be they quakes, volcanoes, tsunamis, floods, or massive earth movements. Most profound is the discovery of irrefutable evidence that these catastrophes have been visited on the state quite regularly over the past few thousands of years as well as the absolute surety that similar disasters will oc- cur in the near and distant future. -
Field Trip Guide to the Middle Eocene Wildcat Mountain Caldera, Ochoco National Forest, Crook County, Oregon by Jason D
Field trip guide to the middle Eocene Wildcat Mountain Caldera, Ochoco National Forest, Crook County, Oregon by Jason D. McClaughry1, Caroline L. Gordon2, and Mark L. Ferns1 1Baker City Field Office, Oregon Department of Geology and Mineral Industries, Baker County Courthouse, 1995 3rd Street, Baker City, Oregon 97814 2Ochoco National Forest, 3160 NE 3rd St., Prineville, Oregon 97754 Overview: This field trip examines the stratigraphy of the middle Eocene Wildcat Mountain caldera exposed east of Prineville, in the Ochoco Mountains of north-central Oregon. Geologic factors that control landslide deposits and mineralization in the east part of the Lower Crooked Basin are discussed. This field trip is 152.7 km (94.9 mi). INTRODUCTION 124o 121o 118o KBML The Wildcat Mountain caldera, in the eastern part of the Lower Portland Crooked Basin, is a volcanic vent complex that collapsed and DCP filled with more than 90 km3 (21.5 mi3) of rhyolitic ash-flow BM 45o WV tuff during the middle Eocene. It is one of only a few caldera 3. Dale Baker City sources for Paleogene ash-flow tuff sheets identified in Oregon and is the first recognized to be Eocene (Figure 1) (Hladky and SFZ 1. 2. CR Unity Wiley, 1993; Hladky, 1996; Ferns and others, 2001; McClaughry Eugene Cougar and Ferns, 2007). Until recently, the lack of Paleogene calderas Prineville Rock WC HC in Oregon was a noteworthy anomaly considering that nu- HLP merous Paleogene calderas have been mapped elsewhere in BFZ OU the western United States. Several Paleogene calderas have 4. BR been identified in adjacent Idaho (McIntyre and others, 1982; KM KBML Leonard and Marvin, 1982; Moye and others, 1988), and many Hart Mountain more have been identified farther south in volcanic fields of the 42o 5. -
The Painted Hills: Thirty Million Years of Phytogeography
OREGON PLANTS, OREGON PLACES' The Painted Hills: Thirty Million Years of Phytogeography By Stuart Garrett and Berta Youtie The Painted Hills Unit, John Day Fossil Beds National on plant life. Fossils in local geological formations allow Monument lies at 600 meters (1970 ft.) above sea level observations of more than 30 million years of earth's about 15 km. (9 mi.) northwest of Mitchell, Oregon along history. Bridge Creek, a tributary of the John Day River. Human History Native Americans lived in John Day Valley for at least 8,000 years. The Painted Hills area divided Plateau and Great Basin (Paiute) cultures. Both groups made extensive use of plant resources in the area. The roots, nuts, seeds 6.1 and berries of a variety of plants were used for food, J'• / , medicine, shelter, cordage and ceremony. Biscuitroot PAINTED 1411-1-5 , 3/711,/ (Lomatium spp.)., also called wild celery or, in Indian ter- - minology, "kouse," was an important staple of the Indian diet. Bitterroot (Lewisia rediviva) roots were peeled and boil- ed prior to eating. Camas (Camassia quamash) bulbs were dug as flowers faded and were baked in underground pits JOHN DAYFOSSIL 13 ED5 lined with balsamroot (F3atsamorhiza spp.) leaves. Even the lNA TIONAL MOM/NEWT 2 stems, fruits and roots of prickly-pear cactus (Opuntia sp.) were consumed. Fiber was obtained from willow (Salix sp.), Sete Indian hemp (Apocynum sp.) and cattail (Typha latifolia). AfTN Bows were manufactured from juniper (Juniperus orriden- calls) (Zucker et al. 1983) BLA C (1C, 130 TTE Native Americans developed a pattern of seasonal travels which allowed them to visit particular sites for selected resources. -
Assessment of Character Variation in the Crania and Teeth Of
ASSESSMENT OF CHARACTER VARIATION IN THE CRANIA AND TEETH OF MODERN ARTIODACTYLS FOR BETTER SPECIES DIAGNOSIS IN THE FOSSIL RECORD by MEAGHAN MARIE EMERY A DISSERTATION Presented to the Department of Geological Sciences and the Graduate School of the University of Oregon in partial fulfillment of the requirements for the degree of Doctor of Philosophy September 2016 DISSERTATION APPROVAL PAGE Student: Meaghan Marie Emery Title: Assessment of Character Variation in the Crania and Teeth of Modern Artiodactyls for Better Species Diagnosis in the Fossil Record This dissertation has been accepted and approved in partial fulfillment of the requirements for the Doctor of Philosophy degree in the Department of Geological Sciences by: Edward Davis Chair Samantha Hopkins Core Member Josh Roering Core Member Douglas Warrick Core Member Stephen Frost Institutional Representative and Scott Pratt Dean of the Graduate School Original approval signatures are on file with the University of Oregon Graduate School. Degree awarded September 2016 ii © 2016 Meaghan Marie Emery This work is copyrighted under a Creative Commons Attribution license iii DISSERTATION ABSTRACT Meaghan Marie Emery Doctor of Philosophy Department of Geological Sciences September 2016 Title: Assessment of Character Variation in the Crania and Teeth of Modern Artiodactyls for Better Species Diagnosis in the Fossil Record Accurately distinguishing species in the fossil record is difficult when the extent of osteological variation in many modern animals is unknown. Research into intraspecific variation has been conducted in a number of groups, but has not been conducted for systematics use in most modern artiodactyls. In this dissertation I quantify intraspecific variation of teeth in 14 species of modern artiodactyl, then test how accurately cranial characters diagnose modern, sympatric species of duikers, and use this information to reassess the artiodactyl diversity of a fossil group: the superfamily Merycoidodontoidea in the John Day Fossil Beds. -
Geologic Framework of the Clarno Unit, John Day Fossil Beds National Monument, Central Oregon
OREGON GEOLOGY published by the Oregon Department of Geology and Mineral Industries VOLUME 61, NUMBER 1 JANUARY/ FEBRUARY 1999 IN THIS ISSUE: GEOLOGIC FRAMEWORK OF THE CLARNO UNIT, JOHN DAY FOSSIL BEDS NATIONAL MONUMENT, CENTRAL OREGON REPORTS ON EARTHQUAKE SWARM AT MOUNT HOOD AND EARTHQUAKE DAMAGE TO LIFELINES IN COLOMBIA OREGON GEOLOGY Mount Hood earthquake swarm of January 1999 VOLUME 61 , NUMBER 1 JAN./FEB. 1999 During the month of January, Mount Hood experi ,...,.".... """"""""" 1Muo'y. MMII. .....,.. W\<. ~. w __ by "" 0."", 00pWnenI oJ enced an earthquake swarm similar to past events. This Gtoqy ... _~~~,,,,,,,,,,CI __ ""'o.,,,,) swarm produced 81 recorded events, including 4 events COoverning Board between magnitude 3.0 and 3.2, Events were felt at Jacqueline G, Haggerty, Chair .. .. ..... ................. .......... " ........ Ent e rpri~ Timberline, Brightwood, Parkdale, and Mount Hood A~een N. Barnett .. ...... ...... " ..... ...... ...... ........... ............. ..... ", .. Portland Donald W. Christensen.. ____ . Depoe Bay Meadows. The majority of events (41) occurred on State Geologist .... ...... ...... " .... " .... " ..... ...... ..... " .... ,' .... , Donald A. Hull Monday, January 11, followed by 9 events on January Oeputy State Geologist .... ...... ...... " .... " ..... " .... .. .. " .. John D. Beaulieu 12, 1 event on January 13, 18 events on January 14, Editor .... " ...... ...... .................. " ..... ...... ....... ......... Klaus K,E. Neuendorf and 12 events on January 15. The earthquakes Production Assistants ..... " ..... ...... ...... ....... ...... " .... " .... ". Geneva Beck were Kate Halstead focused approximately 6 km to the south-southeast of Main OHic~; Su ite 965. 800 NE Oregon Street II ~8. Portland 97132. the summit of Mount Hood, with hypocenter depths phone (503) 731·4100, FAX (503) 731·4066. ranging from 1.1 to 9.4 km below the surface. In the Interne!; http:// sarvis.dogami, state ,0r.Us 8ak~r City Field OHic~; 1831 First Street. -
Geology of John Day Fossil Beds Generalized Stratigraphic Column
National Park Service Geology of John Day Fossil Beds U.S. Department of the Interior www.nps.gov/joda Standing at almost any locality in the monument, views fossils. Examining the differences between each of the of distinctive rock layers abound. Each layer is a window geologic strata helps researchers better understand how into the past, preserving the fossilized remains of plants the region has changed through time. As knowledge and animals, both familiar and strange. It is unlikely about each of the layers grows, fundamental questions that a more complete and well-preserved record of pertaining to the environment, climate, and the ancient Cenozoic terrestrial life exists anywhere in the world. life in western North America can be answered, For this reason, researchers from around the globe come providing a more complete understanding of part of here to share in the wonder of studying these amazing Earth's history. Generalized Stratigraphic Column Ma Recent Deposits Upper Member Rattlesnake Fm Rattlesnake Ashflow Tuff (conglomerate, siltstone and Lower Member ignimbrite) Mascall Fm (interbedded claystone and tuff) Picture Gorge Basalts Kimberly & Haystack Members 3 Upper Turtle Cove Member John Day Fm Picture Gorge Ignimbrite (interbedded claystone, siltstone Lower Turtle Cove Member and tuff) Big Basin Member (bentonite claystone) Clarno Fm (lahar deposits) Gable Creek Fm (conglomerate) Geologic Terms Basalt: A dark-colored volcanic rock composed of magnesium and iron-rich minerals. Claystone: A fine-grained sedimentary rock. Claystone at John Day Fossil Beds was formed through weathering of volcanic ash that was incorporated into ancient soils. Conglomerate: A sedimentary rock composed of rounded particles of varying size, from clay to boulder. -
Geologic Reconnaissance of the Antelope-Ashwood Area North-Central Oregon with EMPHASIS on the JOHN DAY FORMATION of LATE OLIGOCENE and EARLY MIOCENE AGE
Geologic Reconnaissance of the Antelope-Ashwood Area North-Central Oregon WITH EMPHASIS ON THE JOHN DAY FORMATION OF LATE OLIGOCENE AND EARLY MIOCENE AGE GEOLOGICAL SURVEY BULLETIN 1161-D Prepared in cooperation with the State of Oregon, Department of Geology and Mineral Industries Geologic Reconnaissance of the Antelope-Ashwood Area North-Central Oregon WITH EMPHASIS ON THE JOHN DAY FORMATION OF LATE OLIGOCENE AND EARLY MIOCENE AGE By DALLAS L. PECK CONTRIBUTIONS TO GENERAL GEOLOGY GEOLOGICAL SURVEY BULLETIN 1161-D Prepared in cooperation with the State of Oregon, Department of Geology and Mineral Industries UNITED $TATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1964 UNITED STATES DEPARTMENT OF THE INTERIOR STEWART L. UDALL, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.G., 20402 CONTENTS Page Abstract_ __ _ __________________________________ Dl Introduction. ___________________________________ 2 Stratigraphy. ____________-___--____-_--_---_--_- 3 Pre-Tertiary rocks___________--_______-_--__- 3 Clarno Formation ___________________________ 4 John Day Formation_________________________ 5 Lithology____-_________-_--____-_-_-___- 6 Welded ash flows. ________-_____-_-____-- 14 Age and correlation._____________________ 18 Source of the volcanic material.___________ 19 Columbia River Basalt.______________________ 19 Dalles Formation...______-_-__-_--____--____ 20 Basalt of Pliocene or Pleistocene age___________ 20 Quaternary loess, landslide debris, and alluvium- 22 Intrusive rocks_ _________-____--_-__-_--_--_. 22 Structure._ _____________________________________ 23 Friday agate deposit. 23 References cited__ _ _. 25 ILLUSTRATIONS PLATE 1. Reconnaissance geologic map of the Antelope-Ash wood area and geologic map and section of the area between Willowdale and Ashwood_____________-___-___-____-_-___-----_ In pocket Page FIGURE 1.