Processing the Papers of EWU Professor Dale F. Stradling John C
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Lecture 21: Glaciers and Paleoclimate Read: Chapter 15 Homework Due Thursday Nov
Learning Objectives (LO) Lecture 21: Glaciers and Paleoclimate Read: Chapter 15 Homework due Thursday Nov. 12 What we’ll learn today:! 1. 1. Glaciers and where they occur! 2. 2. Compare depositional and erosional features of glaciers! 3. 3. Earth-Sun orbital parameters, relevance to interglacial periods ! A glacier is a river of ice. Glaciers can range in size from: 100s of m (mountain glaciers) to 100s of km (continental ice sheets) Most glaciers are 1000s to 100,000s of years old! The Snowline is the lowest elevation of a perennial (2 yrs) snow field. Glaciers can only form above the snowline, where snow does not completely melt in the summer. Requirements: Cold temperatures Polar latitudes or high elevations Sufficient snow Flat area for snow to accumulate Permafrost is permanently frozen soil beneath a seasonal active layer that supports plant life Glaciers are made of compressed, recrystallized snow. Snow buildup in the zone of accumulation flows downhill into the zone of wastage. Glacier-Covered Areas Glacier Coverage (km2) No glaciers in Australia! 160,000 glaciers total 47 countries have glaciers 94% of Earth’s ice is in Greenland and Antarctica Mountain Glaciers are Retreating Worldwide The Antarctic Ice Sheet The Greenland Ice Sheet Glaciers flow downhill through ductile (plastic) deformation & by basal sliding. Brittle deformation near the surface makes cracks, or crevasses. Antarctic ice sheet: ductile flow extends into the ocean to form an ice shelf. Wilkins Ice shelf Breakup http://www.youtube.com/watch?v=XUltAHerfpk The Greenland Ice Sheet has fewer and smaller ice shelves. Erosional Features Unique erosional landforms remain after glaciers melt. -
Sculpted by Floods Learning Resource Guide Overview
Sculpted by Floods Learning Resource Guide Overview: KSPS’s Sculpted by Floods tells the story of the ice age floods in the Pacific Northwest. It is a story of the earth's power, scientific discovery and human nature - one touted by enthusiasts as the greatest story left untold. During the last ice age, floods flowing with ten times the volume of all the world's current rivers combined inundated the Northwest. What they left behind was a unique landscape that citizens of the Pacific Northwest call home. Subjects: Earth Science, Geology, History, Pacific Northwest History Grade Levels: 6-8 Materials: Lesson handouts, laptops/computers Learning Guide Objectives: Define the following vocabulary terms and use them orally and in writing: glacier, flood, cataracts, landform, canyon, dam. Analyze how floods can create landforms and shape a region’s landscape, using the Missoula Floods as a case study. Next Generation Science Standards MS-ESS2-2. Construct an explanation based on evidence for how geoscience processes have changed Earth’s surface at varying time and spatial scales. Washington State History Standards EALR 4: HISTORY: 3.1. Understands the physical characteristics, cultural characteristics, and location of places, regions, and spatial patterns on the Earth’s surface Common Core English Language Arts Anchor & Literacy in History/Social Studies Standards CCSS.ELA-LITERACY.CCRA.R.7. Integrate and evaluate content presented in diverse media and formats, including visually and quantitatively, as well as in words. CCSS.ELA-LITERACY.CCRA.W.4. Produce clear and coherent writing in which the development, organization, and style are appropriate to task, purpose, and audience. -
Canyon Formation Constraints on the Discharge of Catastrophic Outburst
PUBLICATIONS Journal of Geophysical Research: Planets RESEARCH ARTICLE Canyon formation constraints on the discharge of catastrophic 10.1002/2016JE005061 outburst floods of Earth and Mars Key Points: Mathieu G. A. Lapotre1, Michael P. Lamb1, and Rebecca M. E. Williams2 • A new model for canyon formation through waterfall retreat combines 1Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California, USA, 2Planetary flood hydraulics and erosional mechanics Science Institute, Tucson, Arizona, USA • The model is used as a paleohydraulic tool to estimate the discharge of megafloods on Earth and Mars Abstract Catastrophic outburst floods carved amphitheater-headed canyons on Earth and Mars, and the • Compared with previous estimates, steep headwalls of these canyons suggest that some formed by upstream headwall propagation through predicted discharges are lower, fl durations higher, and water waterfall erosion processes. Because topography evolves in concert with water ow during canyon erosion, volumes are similar we suggest that bedrock canyon morphology preserves hydraulic information about canyon-forming floods. In particular, we propose that for a canyon to form with a roughly uniform width by upstream headwall retreat, erosion must occur around the canyon head, but not along the sidewalls, such that canyon width is fl fl Correspondence to: related to ood discharge. We develop a new theory for bedrock canyon formation by mega oods based M. G. A. Lapotre, on flow convergence of large outburst floods toward a horseshoe-shaped waterfall. The model is developed [email protected] for waterfall erosion by rock toppling, a candidate erosion mechanism in well fractured rock, like columnar basalt. We apply the model to 14 terrestrial (Channeled Scablands, Washington; Snake River Plain, Idaho; Citation: and Ásbyrgi canyon, Iceland) and nine Martian (near Ares Vallis and Echus Chasma) bedrock canyons and Lapotre, M. -
Washington's Channeled Scabland
t\D l'llrl,. \·· ~. r~rn1 ,uR\fEY Ut,l\n . .. ,Y:ltate" tit1Washington ALBEIT D. ROSEWNI, Governor Department of Conservation EARL COE, Dlnctor DIVISION OF MINES AND GEOLOGY MARSHALL T. HUNTTING, Supervisor Bulletin No. 45 WASHINGTON'S CHANNELED SCABLAND By J HARLEN BRETZ 9TAT• PIUHTIHO PLANT ~ OLYMPIA, WASH., 1"511 State of Washington ALBERT D. ROSELLINI, Governor Department of Conservation EARL COE, Director DIVISION OF MINES AND GEOLOGY MARSHALL T. HUNTTING, Supervisor Bulletin No. 45 WASHINGTON'S CHANNELED SCABLAND By .T HARLEN BRETZ l•or sate by Department or Conservation, Olympia, Washington. Price, 50 cents. FOREWORD Most travelers who have driven through eastern Washington have seen a geologic and scenic feature that is unique-nothing like it is to be found anywhere else in the world. This is the Channeled Scab land, a gigantic series of deeply cut channels in the erosion-resistant Columbia River basalt, the rock that covers most of the east-central and southeastern part of the state. Grand Coulee, with its spectac ular Dry Falls, is one of the most widely known features of this ex tensive set of dry channels. Many thousands of travelers must have wondered how this Chan neled Scabland came into being, and many geologists also have speculated as to its origin. Several geologists have published papers outlining their theories of the scabland's origin, but the geologist who has made the most thorough study of the problem and has ex amined the whole area and all the evidence having a bearing on the problem is Dr. J Harlen Bretz. Dr. -
The Man of Scorn
By Jeff Reich The Man of Scorn f I asked you where the world’s largest waterfall is located, how would you reply? Would it be Inga or Kisangani Falls, both located in the Congo, or Niagara Falls, or Imaybe Victoria Falls located on the Zambezi River in Zimbabwe? Well, those are some great answers. But would you believe it is located in central Washington State in America? “What?” you might exclaim. But it is true. The only problem is, this falls has not had water running over it for centuries; thus the reason for its name — Dry Falls. Here is what Wikipedia tells us: As stated, it is around 400 feet high which at one point was estimated to “Dry Falls is a 3.5 mile long scalloped and over 3 miles long, which makes it have been up to 1,000 feet deep! More precipice in central Washington on the almost fi ve times the width of Niagara than 2,000 square miles of central opposite side of the Upper Grand Cou- Falls and over twice as high. What must Washington State were scrubbed bare, lee from the Columbia River, and at the the falls have looked like with its full forming what is called “the scablands.” head of the Lower Grand Coulee. At fi ve volume of water thundering over it? It And nearly 1,000 square miles of the times the width of Niagara, Dry Falls would have shaken the ground for miles scablands contain gravel deposits from is thought to be the greatest known around. -
Caves of Missouri
CAVES OF MISSOURI J HARLEN BRETZ Vol. XXXIX, Second Series E P LU M R I U BU N S U 1956 STATE OF MISSOURI Department of Business and Administration Division of GEOLOGICAL SURVEY AND WATER RESOURCES T. R. B, State Geologist Rolla, Missouri vii CONTENT Page Abstract 1 Introduction 1 Acknowledgments 5 Origin of Missouri's caves 6 Cave patterns 13 Solutional features 14 Phreatic solutional features 15 Vadose solutional features 17 Topographic relations of caves 23 Cave "formations" 28 Deposits made in air 30 Deposits made at air-water contact 34 Deposits made under water 36 Rate of growth of cave formations 37 Missouri caves with provision for visitors 39 Alley Spring and Cave 40 Big Spring and Cave 41 Bluff Dwellers' Cave 44 Bridal Cave 49 Cameron Cave 55 Cathedral Cave 62 Cave Spring Onyx Caverns 72 Cherokee Cave 74 Crystal Cave 81 Crystal Caverns 89 Doling City Park Cave 94 Fairy Cave 96 Fantastic Caverns 104 Fisher Cave 111 Hahatonka, caves in the vicinity of 123 River Cave 124 Counterfeiters' Cave 128 Robbers' Cave 128 Island Cave 130 Honey Branch Cave 133 Inca Cave 135 Jacob's Cave 139 Keener Cave 147 Mark Twain Cave 151 Marvel Cave 157 Meramec Caverns 166 Mount Shira Cave 185 Mushroom Cave 189 Old Spanish Cave 191 Onondaga Cave 197 Ozark Caverns 212 Ozark Wonder Cave 217 Pike's Peak Cave 222 Roaring River Spring and Cave 229 Round Spring Cavern 232 Sequiota Spring and Cave 248 viii Table of Contents Smittle Cave 250 Stark Caverns 256 Truitt's Cave 261 Wonder Cave 270 Undeveloped and wild caves of Missouri 275 Barry County 275 Ash Cave -
INTERIOR/GEOLOGICAL SURVEY USGS· INF -72- 2 !R I) - Electric City-Grand Coulee, Washington the CHANNELED SCABLANDS of EASTERN WASHINGTON
9 INTERIOR/GEOLOGICAL SURVEY USGS· INF -72- 2 !R I) - Electric City-Grand Coulee, Washington THE CHANNELED SCABLANDS OF EASTERN WASHINGTON - The Geologic Story of the Spokane Flood- '(( U.S. GOVERNMENT PRINTING OFFICE , 1976 0 -208-172 F'or sale by the uperint.endent. of Documents, .S. Government Printing Office Washington, D.. 20402- Pric~ 70 cents Lock No. 024 - 001-02507- I nL nlog o. I 19.2: W27/6/974 There is n minimum charge of $1.00 for each mail order A trave ler enterin g th e tal f W as hington fro m th e Eas t crosses a flat-to-rolling country sid o f deep, fertil so il commonly sown with w heat. ontinuing wes twa rd , he abruptly nters a d eply scar red land o f bare bl a k ro k ut by labyrin thine ca nyons and chann el , plunge pools and ro k bas in s, ca ca de and ca tara t ledges, and di playi ng ragged buttes and li ffs, alcoves, im men e gravel bars, and giant ripple marks. Th e traveler has reached the starkly sceni " Chan neled cab lands," and this d ramatic hange in th e landscape may well ca use him to w onder " w hat happ n d here? " Th e answ er- th e grea te t fl ood documented by man. This publica tion, summari zin g th e equence of geologic events that culminated in th e so-call ed ''Spokan Fl ood," w as prepar d in res ponse to a ge neral int re t in geology and a particul ar interes t in th e o ri gin of th e Scab land o ften ex pre sed by th ose ross in g th e State of W as hington. -
Nature-Directed Approach to Hydrology and Hydraulics of Extreme Floods and Megafloods
Nature-Directed Approach to Hydrology and Hydraulics of Extreme Floods and Megafloods Item Type text; Electronic Dissertation Authors Liu, Tao Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction, presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 01/10/2021 17:03:45 Link to Item http://hdl.handle.net/10150/632582 NATURE-DIRECTED APPROACH TO HYDROLOGY AND HYDRAULICS OF EXTREME FLOODS AND MEGAFLOODS by Tao Liu __________________________ Copyright © Tao Liu 2019 A Dissertation Submitted to the Faculty of the DEPARTMENT OF HYDROLOGY AND ATMOSPHERIC SCIENCES In Partial Fulfillment of the Requirements For the Degree of DOCTOR OF PHILOSOPHY WITH A MAJOR IN HYDROLOGY In the Graduate College THE UNIVERSITY OF ARIZONA 2019 2 THE UNIVERSITY OF ARIZONA GRADUATE COLLEGE Tao Liu, Nature-Directed Approach to Hydrology and Hydraulics of As members of the Dissertation Committee, we certify that we have read the dissertation Extreme Floods and Megajloods prepared by titled and recommend that it be accepted as fulfilling the dissertation requirement fo ec of Doctor of Philosophy. a� (04/08/2019) Date: (04/08/2019) Date: (04/08/2019) Date: (04/08/2019) Date: Final approva"-- �-�-�--��� of the final co 3 ACKNOWLEDGEMENT It is the time to say “thank you” to all people who have made a great contribution to this work and my time in the hydrology program. Dr. Vic Baker is the most important person for me to pursue the “Ph. -
1. Geologic Background
Ice Age Floods Study of Alternatives Background section d BACKGROUND 1. Geologic Background n recent geological history, portions of the United States have been the site of several Imassive flooding events caused by the abrupt drainage of glacial lakes. The most dramatic of these are the Ice Age Floods, which covered parts of Montana, Idaho, Washington, and Oregon. For a better understanding of the Floods, perhaps a good place to start is to first look at the geological and climatic changes that led up to these cataclysmic floods. NPS Photo Today’s travelers to the Northwest are witnesses Generally accepted scientific evidence extinct 65 million years ago, and about to a story that puzzled geologists for years. indicates that the earth is around 4.5 to 20 million years ago, in late Cenozoic 4.6 billion years old. Glaciation can be Era, the Pacific Northwest started to look traced all the way back to the Proterozoic much as it does today, with its Era, approximately 2.3 billion years ago, mountains, valleys, and shorelines. when the earth was covered with ice. Near the end of the Proterozoic Era, Ice Ages have occurred sporadically summary between 850 and 600 million years ago, throughout the earth’s history, although his section presents a brief overview of the rock records indicate another global they represent a relatively small part of TGlacial Lake Missoula Floods story, two of the glaciation period. geologic time. Many of the still visible key people involved with discovering the Floods effects of the great ice sheets that and the glacial lake from which the Floods About 200 million years ago the Atlantic periodically covered parts of North originated, and events that led up to the initiation Ocean began to open up and the America were produced during the last of the Ice Age Floods Alternatives Study. -
ESCI-1510: Historical Geology 1
ESCI-1510: Historical Geology 1 ESCI-1510: HISTORICAL GEOLOGY Cuyahoga Community College Viewing: ESCI-1510 : Historical Geology Board of Trustees: February 2019 Academic Term: Fall 2021 Subject Code ESCI - Earth Science Course Number: 1510 Title: Historical Geology Catalog Description: Historical geology focuses on the evolution of land forms and life-forms through geologic time. The course includes a study of evolutionary changes occurring in plant and animal life as documented by fossil remains and the interpretation of geologic forces by means of topographic and geologic maps. Topics include plate tectonics, relative and absolute dating, fossils and fossilization, rocks and their significance as indicators of the environmental past. Emphasis will be placed on North America, dealing with the growth of continents and mountain building. To fulfill the laboratory science requirement, students should also enroll in a Historical Geology laboratory course. Credit Hour(s): 3 Lecture Hour(s): 3 Lab Hour(s): 0 Other Hour(s): 0 Requisites Prerequisite and Corequisite ENG-0985 Introduction to College Literacies, or appropriate score on English Placement Test; and ESCI-1410 Physical Geology or ESCI-1310 Physical Geography. Note: ENG-0980 Language Fundamentals I taken prior to Fall 2021 will also meet prerequisite requirements. Outcomes Course Outcome(s): Apply the principles of geology to understand the Earth's history. Essential Learning Outcome Mapping: Critical/Creative Thinking: Analyze, evaluate, and synthesize information in order to consider problems/ideas and transform them in innovative or imaginative ways. Objective(s): 1. Recognize that the Earth system is characterized by change over a variety of time scales. 2. Explain the use of minerals and rocks to decipher the Earth's history. -
Three Main Types of Rocks on the Planet and in Oregon Lesson to Grow
Lesson to Grow Three Main Types of Rocks on the Planet and in Oregon Description: This lesson builds on the student readings found Grade Level: 4-10 in Oregon’s Ancient Geology. There are three main types of rocks in the world and all are found here Essential Skills: 3, 9 in Oregon. In this lesson, students learn what the NGSS: 4-ESS2-1, 5-ESS3-1 three main types of rocks are and identify geologic events in our region that could have created these CCSS: RI.4.7, W.4.7, W.4.8 rocks. Social Sciences: 6.11, 6.12, Background: 6.13, 6.14, 7.8., 7.9, 7.10, 7.13, 1) The three student geology readings can be 8.10, HS.14, HS.15 downloaded and printed from the online lesson, Math: MP.5 Oregon’s Ancient Natural History - Time: 2-3 class periods 2) The geologic events described in these readings were capable of forming one or more of the Materials: three types of rocks on the planet - sedimentary, Student reading sheets from metamorphic, or igneous. Oregon’s Ancient Natural History online 3) All rocks on earth are formed as either igneous, sedimentary or metamorphic rocks. The diagram AITC Library Resources: to the right shows how the rocks on earth are changed from one rock type to another. Cycling Back to Nature: Soils Alive This changing of rock types is called the “Rock Cycle”. A copy of this Rock Cycle image The Soul of Soil can be downloaded from the Geology Resources section. More Lessons: Earth as an Apple and Soil Directions: Conservation Note: Prior to this lesson, students should have received a copy of the three-part readings Water Filtering and Soil on Oregon’s Ancient Geology (Columbia Basalts, Missoula Floods, and Fire & Ice) and had Soil Horizons & Below our Feet time to read the material and discuss it with their class. -
Mars Pathfinder Landing Site Workshop 11: Characteristics of the Ares Vallis Region and Field Trips in the Channeled Scabland, Washington
MARS PATHFINDER LANDING SITE WORKSHOP 11: CHARACTERISTICS OF THE ARES VALLIS REGION AND FIELD TRIPS IN THE CHANNELED SCABLAND, WASHINGTON r LPI Technical Report Number 95-01, Part 2 Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058-1 113 LPIITR--95-01, Parr 2 MARS PATHFINDER LANDING SITE WORKSHOP TI: CHARACTERISTICS OF THE ARES VALLIS REGION Am FIELD TRIPS TO THJ3 CHMLEDSCABLAND, WASHINGTON Edited by M. P. Golombek, K. S. Edgett, and J, W. Rice Jr. HeId at Spokane, Washington September 2630,1995 Sponsored by Arizona State Universlty Jet Propulsion Laboratory Lunar and Planetary Institute National Aeronautics and Space Administration Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058- 1 1 13 LPT Technical Report Number 95-01, Part 2 LPVTR--95-01,Part 2 Compiled in I995 by LUNAR AND PLANETARY INSTITUTE The Institute is operated by the Universities Space Research Association under Contract No. MASW-4574with the National Aeronautics and Space Administration. Material in this volume may be copied without restraint for Iibrary, abstract service, education, or pwsonal research purposes; however, repuMication of any paper or portion thereof requires the written pwmissim ofthe authors as well as the appropriate acknowledgment of this publication. This report may be cited as Gdornbek M. P., Edgett K. S. and Rice J. W. Jr., 4s. (I 995) Mars Parkfinder Landing Site Workshop If: Charac- teristics of the Ares Valallis Region and Field Trips ro he Channeled Scabland. LPI Tech. Rp!. 95-0 1, Part 2, Lunar and Planetary Institute. Houston. 47 pp. This report is distributed by ORDER DEPARTMENT Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058- 1 1 13 Mail order requeslors will be invoiced for the cost of shipping and handing.