DOCSLIB.ORG

Analysis and Interpretation of Magnetic Anomalies Observed in North-Central California

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Analysis and Interpretation of Magnetic Anomalies Observed in North-Central California AN ABSTRACT OF THE THESIS OF JOANNE L. HUPPUNEN for the degree of DOCTOR OF PHILOSOPHY in GEOPHYSICS presented on NOVEMBER 1, 1983 Title: ANALYSIS AND INTERPRETATION OF MAGNETIC ANOMALIES OBSERVED IN NORTH-CENTRAL CALIFORNIA Abstract approved: Redacted for Privacy Richard W. Couc To assist in the assessment of the geothermal potential of north- central California and to aid in defining the geologic transitions between the physiographic provinces of the Kiamath Range, the Cascade Range, the Modoc Plateau, the Great Valley, and the Sierra Nevada Range, personnel from the Geophysics Group in the College of Ocean- ography at Oregon State University conducted a detailed aeromagnetic survey extending from 400151 to 42°OO'N latitude and from 1200451 to l22°451W longitude. Two forms of spectral analysis, the energy spectrum and the expo- nential methods, were used to make source-top and source-bottom depth calculations. The magnetic source-bottom depths were interpreted as Curie-point isotherm depths. Based on the energy spectrum analysis, several regions with elevated Curie-point isotherm depthswere mapped: (1) the Secret Spring Mountain-National Lava Beds Monumentarea, (2) the Mount Shasta area, (3) the Big Valley Mountains area, and (4) an area northeast of Lassen Peak. The elevated Curie-point isotherm depths within these areas, as shallow as 4 to 7 km below sea level (BSL) in the Secret Spring Mountain-National Lava Beds Monument area, the Mount Shasta area, and the area northeast of Lassen Peak, and 4 to 6 km BSL in the Big Valley Mountains area, imply vertical temperature gradients in excess of 70°C/km and heat flow greater than 100mW/rn2 when assuming a Curie-point temperature of 580°C. Shallow source- bottom depths of 4 to 5 km BSL were mapped in the Eddys Mountain area and interpreted to be the depth of a lithologic contact. Source-top depths show that the magnetic basement varies from about 3.5 km BSL, beneath the sedimentary assemblages of the Great Valley and the east- ern Klamath Range, to near sea level in the Cascade Range. The expo- nential approximation method yielded source-bottom depths which agreed, in general, with depths determined by the energy spectrum method. However, this method appears less reliable and its depth estimates less accurate compared to the energy spectrum method. A broad negative anomaly, observed on the total field magnetic intensity map and low-pass filtered anomaly maps, suggests the sedi- mentary rocks of the Kiamath Complex underlie Mount Shasta and the Medicine Lake Highlands. Magnetic lineations are oriented mainly NW. Analysis and Interpretation of Magnetic Anomalies Observed in North-Central California by JoAnne L. Huppunen A THESIS submitted to Oregon State University in partial fulfillment of the requirements for the degree of Doctor of Philosophy Completed on November 1, 1983 Commencement June 1984 APPROVED: Redacted for Privacy sociafe Professorof Geophysics in chàr'ge of major Redacted for Privacy Dean of College of Oceanograp Redacted for Privacy ean Or Lraute Date Thesis is presented 1 November 1983 Typed by Donna Moore for JoAnne Louise Huppunen ACKNOWLEDGEMENTS My thanks to Dr. Richard Couch, my major professor, for his support, suggestions, and advice. His critical review of this work was very much appreciated. To Mike Gemperle, Jeb Bowers, Gerry Connard, and Bill McLain, among others, who collected the field data,I extend my thanks. Many thanks, as well, to Steve Troseth for his drafting skills, to Sean Shanahan for his computer know-how, and to Bill McLain for paving the way, so to speak. I also owe the completion of parts of this work to Amoco Oil Company in Denver, and professors Dale Bibee and Mike Fehier. My special thanks to Donna Moore for herinvaluable typing and taping skills but more so for her friendship, and to my friend, Jon Hanson, for his suggesting that I return to the "pineywoods" of Oregon to complete my doctorate. Thanks also to my fellow students in Geophysics for their company and humor. My deepest thanks go to Steve Ganoe. Steve gave generously of his time and self and his good-natured attitude was a greathelp to me in times of distress, both realand imagined. Finally,I thank my parents for enduring with me my long career as a student. Their support and help did not go unnoticed or unap- preciated and soI dedicate this thesis to them. This research was funded by the U.S. GeologicalSurvey's Geothermal Research Program under Grant Numberl4-O8-0001-G-623. TABLE OF CONTENTS Page I. INTRODUCTION 1 II. GEOLOGY AND PHYSIOGRAPHY OF NORTH-CENTRAL CALIFORNIA 10 The Cascade Mountain Range 13 The Modoc Plateau Province 17 The Klaniath Mountains 20 The Great Valley 21 The Sierra Nevada Range 22 III. TOTAL FIELD MAGNETIC ANOMALY MAPS 23 IV. LOW-PASS FILTERED MAPS 49 V. MAGNETIC SOURCE-DEPTHS FROM ENERGY SPECTRUM ANALYSIS 56 VI. CURIE-POINT ISOTHERM DEPTHS FROM ENERGY SPECTRUM 90 ANALYSIS VII. MAGNETIC SOURCE-DEPTHS FROM EXPONENTIAL APPROXIMATION 121 ANALYS IS Spectra of a Magnetic Field 122 Centroid of a Magnetic Body 125 Top of a Magnetic Body 129 Curie-Point Depth 131 Top and Bottom of a Magnetic Body 131 VIII. CURIE-POINT ISOTHERM DEPTHS FROM EXPONENTIAL 136 APPROXIMATION ANALYSIS Selection of Frequency Bands 138 Examination of Equation (28) Using Models 141 Examination of Equations (19) and (22) Using 148 Models Generalizations from Model Studies Applied to 149 Survey Study Results for Survey from Equation (28) 150 Results for Survey from Equations (19) and (22) 154 Concluding Remarks 159 IX. SUMMARY AND DISCUSSION OF REGIONAL STRUCTURE AND 161 CURIE-POINT ISOTHERM DEPTHS OF NORTH-CENTRAL CALIFORNIA X. REFERENCES 188 Page XI. APPENDICES A. THE NORTH-CENTRAL CALIFORNIA AEROMAGNETIC 197 SURVEY Data Collection 197 Data Processing 200 B. TECHNIQUES OF ANALYSIS OF THE NORTH-CENTRAL 211 CALIFORNIA AEROMAGNETIC DATA Two-Dimensional Fourier Transform 213 Mean Depth-to-Source Calculations from 215 the Energy Spectrum Mean Depth-to-Bottom Calculations 218 from the Energy Spectrum Filter Operations in the Frequency 223 Domain Rotation-to-the-Pole 223 Upward Continuation 224 Low-Pass Filter 224 C. DATA PREPARATION IN MODEL AND SURVEY 226 STUDIES EMPLOYING THE EXPONENTIAL APPROXIMATION METHOD Data Generation and Source 226 Configurations Survey Data Processing 228 D. LISTINGS OF COMPUTER PROGRAMS 232 LINSYS 233 SIMUL 236 ZCDRIVER 239 ZCALT 241 QUADRANT 242 AMPLITUDE 243 CENTOP 245 LIST OF FIGURES Figure Page 1 Physiographic provinces of the north-central 3 California survey area. 2 Topographic map of north-central California. 11 3 Flight lines of the north-central California 24 aeromagnetic survey. 4 Flight lines for the Mt. Shasta survey area. 25 5 Flight lines for the Lassen Peak survey area. 26 6 Total field aeromagnetic anomaly map of 28 north-central California. 7 Total field aeromagnetic anomaly map of 29 Mount Shasta area. Numbered locations of anomalies are listed in Table 1. 8 Total field aeromagnetic anomaly map of 30 Lassen Peak area. Numbered locations of anomalies are listed in Table 1. 9 Index of magnetic anomalies and topographic 33 features and locations of anomaly trends. 10 Aeromagnetic anomaly map of north-central 50 California in which anomalies with wave- lengths less than 35 km have been suppressed. 11 4eromagnetic anomaly map of north-central 53 California in which anomalies with wave- lengths less than 65 km have been suppressed. 12 Aeromagnetic anomaly map of north-central 54 California in which anomalies with wave- lengths less than 85 km have been suppressed. 13 Boundaries of the 594 x 681 main grid. 60 14 Radially averaged spectrum of aeromagnetic 61 data over the northern two-thirds of the entire survey area. 15 Radially averaged spectrum of aeromagnetic 62 data over the southern two-thirds of the entire survey area. Figure Page 16 Radiallyaveraged spectrumofaeromagnetic 63 data overthe subareaNd. 17 Radiallyaveraged spectrumofaeromagnetic 64 data overthe subareaNC2-W. 18 Radiallyaveraged spectrumofaeromagnetic 65 data overthe subareaNC2. 19 Radiallyaveraged spectrumofaeromagnetic 66 data overthe subarea Medicine Lake. 20 Radiallyaveraged spectrumofaeromagnetic 67 data overthe subareaNC3. 21 Radiallyaveraged spectrumofaeromagnetic 68 data overthe subareaNC4. 22 Radiallyaveraged spectrumofaeromagnetic 69 data overthe subareaNC5. 23 Radiallyaveraged spectrumofaeromagnetic 70 data overthe subareaNC6. 24 Radiallyaveraged spectrumofaeromagnetic 71 data overthe subareaNC7. 25 Radiallyaveraged spectrumofaeromagnetic 72 data overthe subareaNC8. 26 Radiallyaveraged spectrumofaeromagnetic 73 data overthe subareaNC9-NW. 27 Radiallyaveraged spectrumofaeromagnetic 74 data overthe subareaNCY. 28 Radiallyaveraged spectrumofaeromagnetic 75 data overthe subareaNC9-S. 29 Radiallyaveraged spectrumofaeromagnetic 76 data overthe subareaNC1O. 30 Radiallyaveraged spectrumofaeromagnetic 77 data overthe subareaNC11. 31 Radiallyaveraged spectrumofaeromagnetic 78 data overthe subareaNC12-W. 32 Radially averaged spectrumofaeromagnetic 79 data overthe subareaNC12. Figure Page 33 Calculation of minimum Curie-point depths 99 for (a) subareas Nd, NC4, NC5, NC6, NC7, NC8, NC1O, NC11, (b) subareas NC9-S, NC12-W, NC12, and (c) areas where 128 x 128 subgrids did not exhibit spectral peaks. 34 Calculation of (a) Curie-point depths for 100 south 512 x 512 subarea, and (b) minimum Curie-point depth for north 512 x 512 subarea. 35 Calculation of Curie-point depths for (a) the 102 t'ledicine Lake Highlands subarea, (b) the NC2 subarea, and (c) the NC2-W subarea. 36 Calculation of Curie-point depths for the 103 NC3 subarea. 37 Calculation of Curie-point depths for (a) the 104 NC9-NW subarea and (b) the NC9 subarea. 38 Representative radially averaged spectrum 107 for the Secret Spring Mountain-National Lava Beds Park area. 39 Representative radially averaged spectrum 108 for the Mount Shasta area. 40 Representative radially averaged spectrum 110 for the Eddys Mountain area. 41 Representative radially averaged spectrum 111 for the Big Valley Mountains area. 42 Representative radially averaged spectrum 113 for the area northeast of Lassen Peak. 43 Single prism model of fixed source-top depth 143 and variable thickness shown oriented with respect to the observation plane.
Load more

Recommended publications
  • Play Fairway Analysis of the Central Cascades Arc-Backarc Regime, Oregon: Preliminary Indications
    GRC Transactions, Vol. 39, 2015 Play Fairway Analysis of the Central Cascades Arc-Backarc Regime, Oregon: Preliminary Indications Philip E. Wannamaker1, Andrew J. Meigs2, B. Mack Kennedy3, Joseph N. Moore1, Eric L. Sonnenthal3, Virginie Maris1, and John D. Trimble2 1University of Utah/EGI, Salt Lake City UT 2Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis OR 3Lawrence Berkeley National Laboratory, Center for Isotope Geochemistry, Berkeley CA [email protected] Keywords Play Fairway Analysis, geothermal exploration, Cascades, andesitic volcanism, rift volcanism, magnetotellurics, LiDAR, geothermometry ABSTRACT We are assessing the geothermal potential including possible blind systems of the Central Cascades arc-backarc regime of central Oregon through a Play Fairway Analysis (PFA) of existing geoscientific data. A PFA working model is adopted where MT low resistivity upwellings suggesting geothermal fluids may coincide with dilatent geological structural settings and observed thermal fluids with deep high-temperature contributions. A challenge in the Central Cascades region is to make useful Play assessments in the face of sparse data coverage. Magnetotelluric (MT) data from the relatively dense EMSLAB transect combined with regional Earthscope stations have undergone 3D inversion using a new edge finite element formulation. Inversion shows that low resistivity upwellings are associated with known geothermal areas Breitenbush and Kahneeta Hot Springs in the Mount Jefferson area, as well as others with no surface manifestations. At Earthscope sampling scales, several low-resistivity lineaments in the deep crust project from the east to the Cascades, most prominently perhaps beneath Three Sisters. Structural geology analysis facilitated by growing LiDAR coverage is revealing numerous new faults confirming that seemingly regional NW-SE fault trends intersect N-S, Cascades graben- related faults in areas of known hot springs including Breitenbush.
    [Show full text]
  • Area Adventure Hat Creek Ranger District Lassen National Forest
    Area Adventure Hat Creek Ranger District Lassen National Forest Welcome The following list of recreation activities are avail- able in the Hat Creek Recreation Area. For more detailed information please stop by the Old Station Visitor Information Center, open April - December, or our District Office located in Fall River Mills. Give Hat Creek Rim Overlook - Nearly 1 million years us a call year-around Mon.- Fri. at (530) 336-5521. ago, active faulting gradually dropped a block of Enjoy your visit to this very interesting country. the Earth’s crust (now Hat Creek Valley) 1,000 feet below the top of the Hat Creek Rim, leaving behind Subway Cave - See an underground cave formed this large fault scarp. This fault system is still “alive by flowing lava. Located just off Highway 89, 1/4 and cracking”. mile north of Old Station junction with Highway 44. The lava tube tour is self guided and the walk is A heritage of the Hat Creek area’s past, it offers mag- 1/3 mile long. Bring a lantern or strong flashlight nificent views of Hat Creek Valley, Lassen Peak, as the cave is not lighted. Sturdy Shoes and a light Burney Mountain, and, further away, Mt. Shasta. jacket are advisable. Subway Cave is closed during the winter months. Fault Hat Creek Rim Fault Scarp Vertical movement Hat Creek V Cross Section of a Lava Tube along this fault system alley dropped this block of earth into its present position Spattercone Trail - Walk a nature trail where volca- nic spattercones and other interesting geologic fea- tures may be seen.
    [Show full text]
  • Geologic Gems of California's State Parks
    STATE OF CALIFORNIA – EDMUND G. BROWN JR., GOVERNOR NATURAL RESOURCES AGENCY – JOHN LAIRD, SECRETARY CALIFORNIA GEOLOGICAL SURVEY DEPARTMENT OF PARKS AND RECREATION – LISA MANGAT, DIRECTOR JOHN D. PARRISH, Ph.D., STATE GEOLOGIST DEPARTMENT OF CONSERVATION – DAVID BUNN, DIRECTOR PLATE 1 The rugged cliffs of Del Norte Coast Redwoods State Park are composed of some of California’s Bio-regions the most tortured, twisted, and mobile rocks of the North American continent. The California’s Geomorphic Provinces rocks are mostly buried beneath soils and covered by vigorous redwood forests, which thrive in a climate famous for summer fog and powerful winter storms. The rocks only reveal themselves in steep stream banks, along road and trail cut banks, along the precipitous coastal cliffs and offshore in the form of towering rock monuments or sea stacks. (Photograph by CalTrans staff.) Few of California’s State parks display impressive monoliths adorned like a Patrick’s Point State Park displays a snapshot of geologic processes that have castle with towering spires and few permit rock climbing. Castle Crags State shaped the face of western North America, and that continue today. The rocks Park is an exception. The scenic beauty is best enjoyed from a distant exposed in the seacliffs and offshore represent dynamic interplay between the vantage point where one can see the range of surrounding landforms. The The Klamath Mountains consist of several rugged ranges and deep canyons. Klamath/North Coast Bioregion San Joaquin Valley Colorado Desert subducting oceanic tectonic plate (Gorda Plate) and the continental North American monolith and its surroundings are a microcosm of the Klamath Mountains The mountains reach elevations of 6,000 to 8,000 feet.
    [Show full text]
  • Most Impaired" Coral Reef Areas in the State of Hawai'i
    Final Report: EPA Grant CD97918401-0 P. L. Jokiel, K S. Rodgers and Eric K. Brown Page 1 Assessment, Mapping and Monitoring of Selected "Most Impaired" Coral Reef Areas in the State of Hawai'i. Paul L. Jokiel Ku'ulei Rodgers and Eric K. Brown Hawaii Coral Reef Assessment and Monitoring Program (CRAMP) Hawai‘i Institute of Marine Biology P.O.Box 1346 Kāne'ohe, HI 96744 Phone: 808 236 7440 e-mail: [email protected] Final Report: EPA Grant CD97918401-0 April 1, 2004. Final Report: EPA Grant CD97918401-0 P. L. Jokiel, K S. Rodgers and Eric K. Brown Page 2 Table of Contents 0.0 Overview of project in relation to main Hawaiian Islands ................................................3 0.1 Introduction...................................................................................................................3 0.2 Overview of coral reefs – Main Hawaiian Islands........................................................4 1.0 Ka¯ne‘ohe Bay .................................................................................................................12 1.1 South Ka¯ne‘ohe Bay Segment ...................................................................................62 1.2 Central Ka¯ne‘ohe Bay Segment..................................................................................86 1.3 North Ka¯ne‘ohe Bay Segment ....................................................................................94 2.0 South Moloka‘i ................................................................................................................96 2.1 Kamalō
    [Show full text]
  • A Bibliography of Klamath Mountains Geology, California and Oregon
    U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY A bibliography of Klamath Mountains geology, California and Oregon, listing authors from Aalto to Zucca for the years 1849 to mid-1995 Compiled by William P. Irwin Menlo Park, California Open-File Report 95-558 1995 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. PREFACE This bibliography of Klamath Mountains geology was begun, although not in a systematic or comprehensive way, when, in 1953, I was assigned the task of preparing a report on the geology and mineral resources of the drainage basins of the Trinity, Klamath, and Eel Rivers in northwestern California. During the following 40 or more years, I maintained an active interest in the Klamath Mountains region and continued to collect bibliographic references to the various reports and maps of Klamath geology that came to my attention. When I retired in 1989 and became a Geologist Emeritus with the Geological Survey, I had a large amount of bibliographic material in my files. Believing that a comprehensive bibliography of a region is a valuable research tool, I have expended substantial effort to make this bibliography of the Klamath Mountains as complete as is reasonably feasible. My aim was to include all published reports and maps that pertain primarily to the Klamath Mountains, as well as all pertinent doctoral and master's theses.
    [Show full text]
  • Volcanic Legacy
    United States Department of Agriculture Forest Service Pacifi c Southwest Region VOLCANIC LEGACY March 2012 SCENIC BYWAY ALL AMERICAN ROAD Interpretive Plan For portions through Lassen National Forest, Lassen Volcanic National Park, Klamath Basin National Wildlife Refuge Complex, Tule Lake, Lava Beds National Monument and World War II Valor in the Pacific National Monument 2 Table of Contents INTRODUCTION ........................................................................................................................................4 Background Information ........................................................................................................................4 Management Opportunities ....................................................................................................................5 Planning Assumptions .............................................................................................................................6 BYWAY GOALS AND OBJECTIVES ......................................................................................................7 Management Goals ..................................................................................................................................7 Management Objectives ..........................................................................................................................7 Visitor Experience Goals ........................................................................................................................7 Visitor
    [Show full text]
  • Klamath Mountains Province Steelhead Project, 2001-02 Annual Report
    THE OREGON PLAN for Salmon and Watersheds Klamath Mountains Province Steelhead Project, 2001-02 Annual Report Report Number: OPSW-ODFW-2004-08 The Oregon Department of Fish and Wildlife prohibits discrimination in all of its programs and services on the basis of race, color, national origin, age, sex or disability. If you believe that you have been discriminated against as described above in any program, activity, or facility, please contact the ADA Coordinator, P.O. Box 59, Portland, OR 97207, 503-872-5262. This material will be furnished in alternate format for people with disabilities if needed. Please call 541-474-3145 to request. Klamath Mountains Province Steelhead Project 2001-02 Annual Report Oregon Plan for Salmon and Watersheds Monitoring Report No. OPSW-ODFW-2004-08 March 22, 2004 Thomas D. Satterthwaite Oregon Department of Fish and Wildlife 3406 Cherry Avenue NE Salem, Oregon 97303 Citation: Satterthwaite, T.D. 2004. Klamath Mountains Province Steelhead Project, 2001 Annual Report. Monitoring Program Report Number OPSW-ODFW- 2004-08, Oregon Department of Fish and Wildlife, Portland. CONTENTS Page SUMMARY....................................................... 1 Objective for 2001-02.................................... 1 Findings in 2001-02...................................... 1 INTRODUCTION.................................................. 1 METHODS....................................................... 2 RESULTS AND DISCUSSION........................................ 3 Determine Resource Status in Relation to Population Health
    [Show full text]
  • Appendix D Building Descriptions and Climate Zones
    Appendix D Building Descriptions and Climate Zones APPENDIX D: Building Descriptions The purpose of the Building Descriptions is to assist the user in selecting an appropriate type of building when using the Air Conditioning estimating tools. The selected building type should be the one that most closely matches the actual project. These summaries provide the user with the inputs for the typical buildings. Minor variations from these inputs will occur based on differences in building vintage and climate zone. The Building Descriptions are referenced from the 2004-2005 Database for Energy Efficiency Resources (DEER) Update Study. It should be noted that the user is required to provide certain inputs for the user’s specific building (e.g. actual conditioned area, city, operating hours, economy cycle, new AC system and new AC system efficiency). The remaining inputs are approximations of the building and are deemed acceptable to the user. If none of the typical building models are determined to be a fair approximation then the user has the option to use the Custom Building approach. The Custom Building option instructs the user how to initiate the Engage Software. The Engage Software is a stand-alone, DOE2 based modeling program. July 16, 2013 D-1 Version 5.0 Prototype Source Activity Area Type Area % Area Simulation Model Notes 1. Assembly DEER Auditorium 33,235 97.8 Thermal Zoning: One zone per activity area. Office 765 2.2 Total 34,000 Model Configuration: Matches 1994 DEER prototype HVAC Systems: The prototype uses Rooftop DX systems, which are changed to Rooftop HP systems for the heat pump efficiency measures.
    [Show full text]
  • 9691.Ch01.Pdf
    © 2006 UC Regents Buy this book University of California Press, one of the most distinguished univer- sity presses in the United States, enriches lives around the world by advancing scholarship in the humanities, social sciences, and natural sciences. Its activities are supported by the UC Press Foundation and by philanthropic contributions from individuals and institutions. For more information, visit www.ucpress.edu. University of California Press Berkeley and Los Angeles, California University of California Press, Ltd. London, England © 2006 by The Regents of the University of California Library of Congress Cataloging-in-Publication Data Sawyer, John O., 1939– Northwest California : a natural history / John O. Sawyer. p. cm. Includes bibliographical references and index. ISBN 0-520-23286-0 (cloth : alk. paper) 1. Natural history—California, Northern I. Title. QH105.C2S29 2006 508.794—dc22 2005034485 Manufactured in the United States of America 15 14 13 12 11 10 09 08 07 06 10987654321 The paper used in this publication meets the minimum require- ments of ansi/niso z/39.48-1992 (r 1997) (Permanence of Paper).∞ The Klamath Land of Mountains and Canyons The Klamath Mountains are the home of one of the most exceptional temperate coniferous forest regions in the world. The area’s rich plant and animal life draws naturalists from all over the world. Outdoor enthusiasts enjoy its rugged mountains, its many lakes, its wildernesses, and its wild rivers. Geologists come here to refine the theory of plate tectonics. Yet, the Klamath Mountains are one of the least-known parts of the state. The region’s complex pattern of mountains and rivers creates a bewil- dering set of landscapes.
    [Show full text]
  • CHAPTER 3 Trinity River Fish and Wildlife Background
    TRINITY RIVER FLOW EVALUATION - FINAL REPORT CHAPTER 3 Trinity River The life histories of anadromous species have two Fish and Wildlife distinct phases, one in freshwater and the other in salt Background water. Newly hatched young remain in the river of their birth for months to years before migrating to the ocean to grow to their adult size. Adult salmonids 3.1 Fish Resources return from the ocean to their natal rivers to spawn. Although steelhead, coho salmon, and chinook salmon Commercial, Tribal, and sport fisheries depend on healthy require similar instream habitats for spawning, egg populations of steelhead (Oncorhynchus mykiss), coho incubation, and salmon (O. kisutch), and chinook salmon (O. tshawytscha). rearing, the The following sections describe the habitat requirements Commercial, Tribal, and timing of their and life histories of these fish species and document their sport fisheries depend on life history decline. Any recommended measures to restore and healthy populations of events varies maintain the Trinity River fishery resources must consider steelhead (Oncorhynchus (Figure 3.1). these life histories and habitat requirements. mykiss), coho salmon Published values (O. kisutch), and chinook salmon (O. tshawytscha). 13 CHAPTER 3: TRINITY RIVER FISH AND WILDLIFE BACKGROUND JAN FEB MAR APR MAY JUNE JULY AUG SEPT OCT NOV DEC Chinook Spring-run Chinook Fall-run Chinook Adult Coho Coho Migration and Holding Steelhead Summer-run Steelhead Fall-run Steelhead Winter-run Steelhead Steelhead Half pounders Steelhead Steelhead Chinook Spring-run Chinook Fall-run Chinook Spawning Coho Coho Coho Steelhead All runs Steelhead Chinook Chinook Chinook Egg incubation Coho Coho Coho Steelhead Steelhead Chinook Chinook Fry Emergence Coho Coho Steelhead Steelhead Chinook Chinook Coho Juvenile age 0 Coho Rearing age 1 Coho Steelhead age 0 Steelhead age 1, age 2 Steelhead Chinook Chinook Smolt Out- Coho Coho migration Steelhead Steelhead * A small percentage of chinook in the Trinity River overwinter and outmigrate at age 1, similar to coho age 1 life history.
    [Show full text]
  • Lassen Volcanic National Park
    LASSEN VOLCANIC NATIONAL PARK • CALIFORNIA • UNITED STATES DEPARTMENT OF THE INTERIOR RATIONAL PARK SERVICE UNITED STATES DEPARTMENT OF THE INTERIOR HAROLD L. ICKES, Secretary NATIONAL PARK SERVICE ARNO B. CAMMERER, Director LASSEN VOLCANIC NATIONAL PARK CALIFORNIA SEASON FROM JUNE 1 TO SEPTEMBER IS UNITED STATES GOVERNMENT PRINTING OFFICE WASHINGTON : 1934 RULES AND REGULATIONS The park regulations are designed for the protection of the natural beauties as well as for the comfort and convenience of visitors. The com­ plete regulations may be seen at the office of the superintendent of the park. The following synopsis is for the general guidance of visitors, who are requested to assist in the administration of the park by observing CONTENTS the rules. PAGE Automobiles.—Many sharp unexpected curves exist on the Lassen Peak Loop Highway, and fast driving—over 25 miles per hour in most places—is GEOLOGIC HISTORY 2 dangerous. Drive slowly, keeping always well to the right, and enjoy the THE ANCIENT BROKEOFF CRATER 5 scenery. Specimens and souvenirs.—In order that future visitors may enjoy the SOLFATARAS 6 park unimpaired and unmolested, it is strictly prohibited to break any THE CINDER CONE 8 formation; to take any minerals, lava, pumace, sulphur, or other rock MOUNTAINS 9 specimens; to injure or molest or disturb any animal, bird, tree, flower, or shrub in the park. Driving nails in trees or cutting the bark of trees in OTHER INTERESTING FEATURES I0 camp grounds is likewise prohibited and strictly enforced. Dead wood WILD ANIMALS :: may be gathered for camp fires. Trash.—Scraps of paper, lunch refuse, orange peelings, kodak cartons, FISHING :4 chewing-gum wrappers, and similar trash scattered along the roads and CAMPING r5 trails and camp grounds and parking areas are most objectionable and unsightly.
    [Show full text]
  • Crater Lake National Park Oregon
    DEPARTMENT OF THE INTERIOR HUBERT WORK. SECRETARY NATIONAL PARK SERVICE STEPHEN T. MATHER. DIRECTOR RULES AND REGULATIONS CRATER LAKE NATIONAL PARK OREGON PALISADE POINT, MOUNT SCOTT IN THE DISTANCE 1923 Season from July 1 to September 30 THE PHANTOM SHIP. FISHING IS EXCELLENT IN CRATER LAKE. THE NATIONAL PARKS AT A GLANCE. [Number, 19; total area, 11,372 square miles.] Area in National parks in Distinctive characteristics. order of creation. Location. squaro miles. Hot Springs Middle Arkansas li 40 hot springs possessing curative properties- 1832 Many hotels and boarding houses—20 bath­ houses under public control. Yellowstone Northwestern Wyo­ 3.348 More geysers than in all rest of world together- 1872 ming. Boiling springs—Mud volcanoes—Petrified for­ ests—Grand Canyon of the Yellowstone, remark­ able for gorgeous coloring—Large lakes—Many largo streams and waterfalls—Vast wilderness, greatest wild bird and animal preserve in world— Exceptional trout fishing. Sequoia. Middle eastern Cali­ 252 The Big Tree National Park—several hundred 1S90 fornia. sequoia trees over 10 feet in diameter, some 25 to 36 feet, hi diameter—Towering mountain ranges- Startling precipices—Mile long cave of delicate beauty." Yosemito Middle eastern Cali­ 1,125 Valley of world-famed beauty—Lofty chits—Ro­ 1890 fornia. mantic vistas—Many waterfalls of extraordinary height—3 groves of big trees—High Sierra— Waterwhcol falls—Good trout fishing. General Grant Middle eastern Cali­ 4 Created to preserve the celebrated General Grant 1S90 fornia. Tree, 3* feet in diameter—6 miles from Sequoia National Park. Mount Rainier ... West central Wash­ 321 Largest accessible single peak glacier system—28 1899 ington.
    [Show full text]