The Geology of Zion
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PRELUDE to SEVEN SLOTS: FILLING and SUBSEQUENT MODIFICATION of SEVEN BROAD CANYONS in the NAVAJO SANDSTONE, SOUTH-CENTRAL UTAH by David B
PRELUDE TO SEVEN SLOTS: FILLING AND SUBSEQUENT MODIFICATION OF SEVEN BROAD CANYONS IN THE NAVAJO SANDSTONE, SOUTH-CENTRAL UTAH by David B. Loope1, Ronald J. Goble1, and Joel P. L. Johnson2 ABSTRACT Within a four square kilometer portion of Grand Staircase-Escalante National Monument, seven distinct slot canyons cut the Jurassic Navajo Sandstone. Four of the slots developed along separate reaches of a trunk stream (Dry Fork of Coyote Gulch), and three (including canyons locally known as “Peekaboo” and “Spooky”) are at the distal ends of south-flowing tributary drainages. All these slot canyons are examples of epigenetic gorges—bedrock channel reaches shifted laterally from previous reach locations. The previous channels became filled with alluvium, allowing active channels to shift laterally in places and to subsequently re-incise through bedrock elsewhere. New evidence, based on optically stimulated luminescence (OSL) ages, indicates that this thick alluvium started to fill broad, pre-existing, bedrock canyons before 55,000 years ago, and that filling continued until at least 48,000 years ago. Streams start to fill their channels when sediment supply increases relative to stream power. The following conditions favored alluviation in the study area: (1) a cooler, wetter climate increased the rate of mass wasting along the Straight Cliffs (the headwaters of Dry Fork) and the rate of weathering of the broad outcrops of Navajo and Entrada Sandstone; (2) windier conditions increased the amount of eolian sand transport, perhaps destabilizing dunes and moving their stored sediment into stream channels; and (3) southward migration of the jet stream dimin- ished the frequency and severity of convective storms. -
The Little Colorado River Project: Is New Hydropower Development the Key to a Renewable Energy Future, Or the Vestige of a Failed Past?
COLORADO NATURAL RESOURCES, ENERGY & ENVIRONMENTAL LAW REVIEW The Little Colorado River Project: Is New Hydropower Development the Key to a Renewable Energy Future, or the Vestige oF a Failed Past? Liam Patton* Table of Contents INTRODUCTION ........................................................................................ 42 I. THE EVOLUTION OF HYDROPOWER ON THE COLORADO PLATEAU ..... 45 A. Hydropower and the Development of Pumped Storage .......... 45 B. History of Dam ConstruCtion on the Plateau ........................... 48 C. Shipping ResourCes Off the Plateau: Phoenix as an Example 50 D. Modern PoliCies for Dam and Hydropower ConstruCtion ...... 52 E. The Result of Renewed Federal Support for Dams ................. 53 II. HYDROPOWER AS AN ALLY IN THE SHIFT TO CLEAN POWER ............ 54 A. Coal Generation and the Harms of the “Big Buildup” ............ 54 B. DeCommissioning Coal and the Shift to Renewable Energy ... 55 C. The LCR ProjeCt and “Clean” Pumped Hydropower .............. 56 * J.D. Candidate, 2021, University oF Colorado Law School. This Note is adapted From a final paper written for the Advanced Natural Resources Law Seminar. Thank you to the Colorado Natural Resources, Energy & Environmental Law Review staFF For all their advice and assistance in preparing this Note For publication. An additional thanks to ProFessor KrakoFF For her teachings on the economic, environmental, and Indigenous histories of the Colorado Plateau and For her invaluable guidance throughout the writing process. I am grateFul to share my Note with the community and owe it all to my professors and classmates at Colorado Law. COLORADO NATURAL RESOURCES, ENERGY & ENVIRONMENTAL LAW REVIEW 42 Colo. Nat. Resources, Energy & Envtl. L. Rev. [Vol. 32:1 III. ENVIRONMENTAL IMPACTS OF PLATEAU HYDROPOWER ............... -
GE OS 1234-101 Historical Geology Lecture Syllabus Instructor
G E OS 1234-101 Historical Geology Lecture Syllabus Instructor: Dr. Jesse Carlucci ([email protected]), (940) 397-4448 Class: MWF, 10am -10:50am, BO 100 Office hours: Bolin Hall 131, MWF, 11am ± 2pm, Tuesday, noon - 2pm. You can arrange to meet with me at any time, by appointment. Textbook: Earth System History by Steven M. Stanley, 3rd edition. I will occasionally post articles and other readings on blackboard. I will also upload Power Point presentations to blackboard before each class, if possible. Course Objectives: Historical Geology provides the student with a comprehensive survey of the history of life, and major events in the physical development of Earth. Most importantly, this class addresses how processes like plate tectonics and climate interact with life, forming an integrated system. The first half of the class focuses on concepts, and the second on a chronologic overview of major biological and physical events in different geologic periods. L E C T UR E SC H E DU L E Aug 27-31: Overview of course; what is science? The Earth as a planet Stanley (pg. 244-247) Sep 5-7: Earth materials, rocks and minerals Stanley (pg. 13-17; 25-34) Sep 10-14: Rocks & minerals continued; plate tectonics. Stanley (pg. 3-12; 35-46; 128-141; 175-186) Sep 17-21: Geological time and dating of the rock record; chemical systems, the climate system through time. Quiz 1 (Sep 19; 5%). Stanley (pg. 187-194; 196-207; 215-223; 232-238) Sep 24-28: Sedimentary environments and life; paleoecology. Stanley (pg. 76-80; 84-96; 99-123) Oct 1-5: Biological evolution and the fossil record. -
Scoping Report: Grand Staircase-Escalante National
CONTENTS 1 Introduction .............................................................................................................................................. 1 2 Scoping Process ....................................................................................................................................... 3 2.1 Purpose of Scoping ........................................................................................................................... 3 2.2 Scoping Outreach .............................................................................................................................. 3 2.2.1 Publication of the Notice of Intent ....................................................................................... 3 2.2.2 Other Outreach Methods ....................................................................................................... 3 2.3 Opportunities for Public Comment ................................................................................................ 3 2.4 Public Scoping Meetings .................................................................................................................. 4 2.5 Cooperating Agency Involvement ................................................................................................... 4 2.6 National Historic Preservation Act and Tribal Consultation ....................................................... 5 3 Submission Processing and Comment Coding .................................................................................... 5 -
Arizona Fishing Regulations 3 Fishing License Fees Getting Started
2019 & 2020 Fishing Regulations for your boat for your boat See how much you could savegeico.com on boat | 1-800-865-4846insurance. | Local Offi ce geico.com | 1-800-865-4846 | Local Offi ce See how much you could save on boat insurance. Some discounts, coverages, payment plans and features are not available in all states or all GEICO companies. Boat and PWC coverages are underwritten by GEICO Marine Insurance Company. GEICO is a registered service mark of Government Employees Insurance Company, Washington, D.C. 20076; a Berkshire Hathaway Inc. subsidiary. TowBoatU.S. is the preferred towing service provider for GEICO Marine Insurance. The GEICO Gecko Image © 1999-2017. © 2017 GEICO AdPages2019.indd 2 12/4/2018 1:14:48 PM AdPages2019.indd 3 12/4/2018 1:17:19 PM Table of Contents Getting Started License Information and Fees ..........................................3 Douglas A. Ducey Governor Regulation Changes ...........................................................4 ARIZONA GAME AND FISH COMMISSION How to Use This Booklet ...................................................5 JAMES S. ZIELER, CHAIR — St. Johns ERIC S. SPARKS — Tucson General Statewide Fishing Regulations KURT R. DAVIS — Phoenix LELAND S. “BILL” BRAKE — Elgin Bag and Possession Limits ................................................6 JAMES R. AMMONS — Yuma Statewide Fishing Regulations ..........................................7 ARIZONA GAME AND FISH DEPARTMENT Common Violations ...........................................................8 5000 W. Carefree Highway Live Baitfish -
Trip Planner
National Park Service U.S. Department of the Interior Grand Canyon National Park Grand Canyon, Arizona Trip Planner Table of Contents WELCOME TO GRAND CANYON ................... 2 GENERAL INFORMATION ............................... 3 GETTING TO GRAND CANYON ...................... 4 WEATHER ........................................................ 5 SOUTH RIM ..................................................... 6 SOUTH RIM SERVICES AND FACILITIES ......... 7 NORTH RIM ..................................................... 8 NORTH RIM SERVICES AND FACILITIES ......... 9 TOURS AND TRIPS .......................................... 10 HIKING MAP ................................................... 12 DAY HIKING .................................................... 13 HIKING TIPS .................................................... 14 BACKPACKING ................................................ 15 GET INVOLVED ................................................ 17 OUTSIDE THE NATIONAL PARK ..................... 18 PARK PARTNERS ............................................. 19 Navigating Trip Planner This document uses links to ease navigation. A box around a word or website indicates a link. Welcome to Grand Canyon Welcome to Grand Canyon National Park! For many, a visit to Grand Canyon is a once in a lifetime opportunity and we hope you find the following pages useful for trip planning. Whether your first visit or your tenth, this planner can help you design the trip of your dreams. As we welcome over 6 million visitors a year to Grand Canyon, your -
GEOLOGY What Can I Do with This Major?
GEOLOGY What can I do with this major? AREAS EMPLOYERS STRATEGIES Some employment areas follow. Many geolo- gists specialize at the graduate level. ENERGY (Oil, Coal, Gas, Other Energy Sources) Stratigraphy Petroleum industry including oil and gas explora- Geologists working in the area of energy use vari- Sedimentology tion, production, storage and waste disposal ous methods to determine where energy sources are Structural Geology facilities accumulated. They may pursue work tasks including Geophysics Coal industry including mining exploration, grade exploration, well site operations and mudlogging. Geochemistry assessment and waste disposal Seek knowledge in engineering to aid communication, Economic Geology Federal government agencies: as geologists often work closely with engineers. Geomorphology National Labs Coursework in geophysics is also advantageous Paleontology Department of Energy for this field. Fossil Energy Bureau of Land Management Gain experience with computer modeling and Global Hydrogeology Geologic Survey Positioning System (GPS). Both are used to State government locate deposits. Consulting firms Many geologists in this area of expertise work with oil Well services and drilling companies and gas and may work in the geographic areas Oil field machinery and supply companies where deposits are found including offshore sites and in overseas oil-producing countries. This industry is subject to fluctuations, so be prepared to work on a contract basis. Develop excellent writing skills to publish reports and to solicit grants from government, industry and private foundations. Obtain leadership experience through campus organi- zations and work experiences for project man- agement positions. (Geology, Page 2) AREAS EMPLOYERS STRATEGIES ENVIRONMENTAL GEOLOGY Sedimentology Federal government agencies: Geologists in this category may focus on studying, Hydrogeology National Labs protecting and reclaiming the environment. -
The Mormon Pioneer National Heritage Area
Museums M 191 MPNHA Absorb the Old West through anti, U hundreds of interactive N displays of pioneer history, orth Mormon heritage, outlaw T 84642 stories, and nature and UNDER THE RIM M Artists, Artisans, Crafters wildlife. Experience a new Big Water ain understanding of the settlers Big Water Visitor Center Museum/Grand Inspired by this rugged who shaped the social, Staircase Escalante National Monument Pal landscape, the artists and cultural and historic life crafters of the area are and lore of the American Kanab Grand Staircase Escalante National winners of the Best of West. Museum hours vary His Monument Geo Arc State Award. Handmade Kanab Heritage House by season. Call ahead His treasures include porcelain for schedule (See Visitor Kanab Heritage Museum Mt. Carmel dolls and carved wooden Information box at right). Kanab Visitor Center Museum The Old Rock Church Gallery Art caricatures, antique HEADWatERS BOULDER LOOP / furniture reproductions, Circleville HEADWatERS contemporary woodcraft, LittlE DEnmarK Butch Cassidy’s Childhood Home His HEritagE AREA MARKERS pottery, appliqued western Fairview Mormon Pioneer National Heritage Old Rock Schoolhouse, Marysvale clothing, hand tooled boots Art Hatch Fairview Museum and Art His Area Markers showing local travel Escalante Tithing Office, 1884 William Derby Johnson, Jr., House and saddles, unique jewelry, Daughters of Utah Pioneers Museum His maps and historic sites. Historic Red Brick Homes (Cole’s Hotel), 1884, Kanab Native American crafts, Fountain Green Open by appointment M. Parker (Butch Cassidy), Perry Lodge, Home to the Move Stars fine art and more. Beautiful Mt. Pleasant, corner of Main Street and Hwy 89 objects and memorable Fountain Green Daughters of Utah Pioneers Marysvale Cabin, c. -
Grand Canyon-Parashant National Monument Foundation Document
NATIONAL PARK SERVICE • U.S. DEPARTMENT OF THE INTERIOR Foundation Document Overview Grand Canyon-Parashant National Monument Arizona Contact Information For more information about the Grand Canyon-Parashant National Monument Foundation Document, contact: [email protected] or 435-688-3226 or write to: Superintendent, Grand Canyon-Parashant National Monument, 345 E. Riverside Drive, St. George, UT 84790 Purpose Significance Significance statements express why Grand Canyon-Parashant National Monument resources and values are important enough to merit designation as a national monument. Statements of significance describe the distinctive nature of the monument and why an area is important within a global, national, regional, and systemwide context. They focus on the most important resources and values that will assist in planning and management for the monument. • Spanning 320 million years, the exposed rock layers at Parashant National Monument provide a distinctly identifiable view of the geologic boundaries of the Colorado Plateau and Basin and Range regions, including evidence of the interaction between volcanic processes and native cultural communities. The extensive natural history reveals a robust fossil record and preserves museum-quality marine and ice age fossils. At GRAND CANYON-PARASHANT NATIONAL • Encompassing more than 1 million acres, a dramatic MONUMENT, the Bureau of Land elevational gradient from 1,200 to 8,000 feet, and transitional Management and the National zones of the Sonoran, Mojave, Great Basin, and Colorado Park Service cooperatively protect Plateau ecoregions, Parashant National Monument protects undeveloped, wild, and remote a biologically rich system of plant and animal life. northwestern Arizona landscapes • Parashant National Monument is one of the most rugged and their resources, while providing and remote landscapes remaining in the southwestern opportunities for solitude, primitive United States. -
STATE of UTAH DEPARTMENT of NATURAL RESOURCES Technical
STATE OF UTAH DEPARTMENT OF NATURAL RESOURCES Technical Publication No. 70 GROUND-WATER CONDITIONS IN THE UPPER VIRGIN RIVER AND KANAB CREEK BASINS AREA, UTAH, WITH EMPHASIS ON THE NAVAJO SANDSTONE by R. M. Cordova Hydrologist, U.S. Geological Survey Prepared by the United States Geological Survey in cooperation with The Utah Department of Natural Resources Division of Water Rights 1981 CONTENTS Page Conversion factors VI Abstract 1 Introduction 2 Purpose and scope of the study.................................... 2 Previous studies and acknowledgments 2 Data-site-numbering system........................................ 3 Location and general features of the study area 3 Physiography and drainage 3 Climate 6 CuI ture and economy 9 Geologic setting 9 General characteristics of the rocks 9 General geologic structure 11 Water resources 11 Precipitation 11 Surface water 13 Runoff 13 Chemical quality 13 Ground water 16 General conditions of occurrence 16 Unconsolidated-rock aquifers 17 Consolidated-rock aquifers 19 Hydrologic properties of aquifers 20 Recharge 27 Movement 28 Discharge 30 Seepage to streams 31 Evapotranspiration 31 Springs 33 Wells 35 Subsurface outflow 36 Storage 37 Chemical quality 41 General characteristics 41 Relation to use 47 Public supply 47 Irrigation supply 47 Temperature 49 Possible hydrologic effects of increased ground-water development 50 Interference with existing wells .......................•.......... 50 Shift of the ground-water divide 55 Reduction of streamflow 56 Effects on chemical quality of water 56 Summary and conclusions 57 References cited 59 Publications of the Utah Department of Natural Resources, Division of Water Rights 78 III ILLUSTRATIONS [Plates are in pocket] Plate 1. Map showing selected geohydrologic information in the upper Virgin River basin. -
Weathering, Erosion, and Susceptibility to Weathering Henri Robert George Kenneth Hack
Weathering, erosion, and susceptibility to weathering Henri Robert George Kenneth Hack To cite this version: Henri Robert George Kenneth Hack. Weathering, erosion, and susceptibility to weathering. Kanji, Milton; He, Manchao; Ribeira e Sousa, Luis. Soft Rock Mechanics and Engineering, Springer Inter- national Publishing, pp.291-333, 2020, 9783030294779. 10.1007/978-3-030-29477-9. hal-03096505 HAL Id: hal-03096505 https://hal.archives-ouvertes.fr/hal-03096505 Submitted on 5 Jan 2021 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Published in: Hack, H.R.G.K., 2020. Weathering, erosion and susceptibility to weathering. 1 In: Kanji, M., He, M., Ribeira E Sousa, L. (Eds), Soft Rock Mechanics and Engineering, 1 ed, Ch. 11. Springer Nature Switzerland AG, Cham, Switzerland. ISBN: 9783030294779. DOI: 10.1007/978303029477-9_11. pp. 291-333. Weathering, erosion, and susceptibility to weathering H. Robert G.K. Hack Engineering Geology, ESA, Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente Enschede, The Netherlands e-mail: [email protected] phone: +31624505442 Abstract: Soft grounds are often the result of weathering. Weathering is the chemical and physical change in time of ground under influence of atmosphere, hydrosphere, cryosphere, biosphere, and nuclear radiation (temperature, rain, circulating groundwater, vegetation, etc.). -
Bryce Canyon National Park
Lees Ferry, Arizona), White (which surround Utah Zion Canyon), Gray and Pink. Most of the Grand Staircase is now contained within the BLM-managed Grand Staircase - Escalante National Monument. The rocks that give Bryce Canyon its distinctive colors are members of the Claron Formation, a mixed Highlights limestone/sandstone layer, and are also found exposed, with similarly intricate forms, in other nearly locations such as Red Canyon and Cedar Breaks. Erosion: Water is responsible for creating the rock shapes in Bryce Canyon National Park. Rain and melting snow flowing down the Pink Cliffs towards the Paria River form ridges, or fins, which subsequently erode into the spires, pinnacles and other shapes (collectively known as ‘hoodoos’) which are left standing. In time these too erode, and the whole process moves very gradually westwards as more of the cliff is slowly worn away. During the long, cold winters, the cliffs are further weakened by freezing water Bryce Canyon National Park expanding in cracks, resulting in more erosion when the ice Bryce Canyon National Park does not contain one main thaws in spring. canyon, but rather a dozen smaller ravines eroded into the east side of a ridge running approximately north-south at Bryce Canyon Trails: As with most national parks, the best the edge of the Paunsaugunt Plateau in southwest Utah. This way to appreciate Bryce Canyon is to explore away from erosion has resulted in thousands of bizarre and fragile rock the main roads. There are various trails both along the rim formations, large and small, in many subtle shades of pink, and down through the formations, but probably the best white, yellow, orange and red, extending in quite a narrow is the Fairyland Loop Trail, an 8 mile, little-used route which band for over 25 miles along the plateau rim.