Western Earth Surface Processes
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Chapter 2 Paleozoic Stratigraphy of the Grand Canyon
CHAPTER 2 PALEOZOIC STRATIGRAPHY OF THE GRAND CANYON PAIGE KERCHER INTRODUCTION The Paleozoic Era of the Phanerozoic Eon is defined as the time between 542 and 251 million years before the present (ICS 2010). The Paleozoic Era began with the evolution of most major animal phyla present today, sparked by the novel adaptation of skeletal hard parts. Organisms continued to diversify throughout the Paleozoic into increasingly adaptive and complex life forms, including the first vertebrates, terrestrial plants and animals, forests and seed plants, reptiles, and flying insects. Vast coal swamps covered much of mid- to low-latitude continental environments in the late Paleozoic as the supercontinent Pangaea began to amalgamate. The hardiest taxa survived the multiple global glaciations and mass extinctions that have come to define major time boundaries of this era. Paleozoic North America existed primarily at mid to low latitudes and experienced multiple major orogenies and continental collisions. For much of the Paleozoic, North America’s southwestern margin ran through Nevada and Arizona – California did not yet exist (Appendix B). The flat-lying Paleozoic rocks of the Grand Canyon, though incomplete, form a record of a continental margin repeatedly inundated and vacated by shallow seas (Appendix A). IMPORTANT STRATIGRAPHIC PRINCIPLES AND CONCEPTS • Principle of Original Horizontality – In most cases, depositional processes produce flat-lying sedimentary layers. Notable exceptions include blanketing ash sheets, and cross-stratification developed on sloped surfaces. • Principle of Superposition – In an undisturbed sequence, older strata lie below younger strata; a package of sedimentary layers youngs upward. • Principle of Lateral Continuity – A layer of sediment extends laterally in all directions until it naturally pinches out or abuts the walls of its confining basin. -
GSA ROCKY MOUNTAIN/CORDILLERAN JOINT SECTION MEETING 15–17 May Double Tree by Hilton Hotel and Conference Center, Flagstaff, Arizona, USA
Volume 50, Number 5 GSA ROCKY MOUNTAIN/CORDILLERAN JOINT SECTION MEETING 15–17 May Double Tree by Hilton Hotel and Conference Center, Flagstaff, Arizona, USA www.geosociety.org/rm-mtg Sunset Crater is a cinder cone located north of Flagstaff, Arizona, USA. Program 05-RM-cvr.indd 1 2/27/2018 4:17:06 PM Program Joint Meeting Rocky Mountain Section, 70th Meeting Cordilleran Section, 114th Meeting Flagstaff, Arizona, USA 15–17 May 2018 2018 Meeting Committee General Chair . Paul Umhoefer Rocky Mountain Co-Chair . Dennis Newell Technical Program Co-Chairs . Nancy Riggs, Ryan Crow, David Elliott Field Trip Co-Chairs . Mike Smith, Steven Semken Short Courses, Student Volunteer . Lisa Skinner Exhibits, Sponsorship . Stephen Reynolds GSA Rocky Mountain Section Officers for 2018–2019 Chair . Janet Dewey Vice Chair . Kevin Mahan Past Chair . Amy Ellwein Secretary/Treasurer . Shannon Mahan GSA Cordilleran Section Officers for 2018–2019 Chair . Susan Cashman Vice Chair . Michael Wells Past Chair . Kathleen Surpless Secretary/Treasurer . Calvin Barnes Sponors We thank our sponsors below for their generous support. School of Earth and Space Exploration - Arizona State University College of Engineering, Forestry, and Natural Sciences University of Arizona Geosciences (Arizona LaserChron Laboratory - ALC, Arizona Radiogenic Helium Dating Lab - ARHDL) School of Earth Sciences & Environmental Sustainability - Northern Arizona University Arizona Geological Survey - sponsorship of the banquet Prof . Stephen J Reynolds, author of Exploring Geology, Exploring Earth Science, and Exploring Physical Geography - sponsorship of the banquet NOTICE By registering for this meeting, you have acknowledged that you have read and will comply with the GSA Code of Conduct for Events (full code of conduct listed on page 31) . -
Michael Kenney Paleozoic Stratigraphy of the Grand Canyon
Michael Kenney Paleozoic Stratigraphy of the Grand Canyon The Paleozoic Era spans about 250 Myrs of Earth History from 541 Ma to 254 Ma (Figure 1). Within Grand Canyon National Park, there is a fragmented record of this time, which has undergone little to no deformation. These still relatively flat-lying, stratified layers, have been the focus of over 100 years of geologic studies. Much of what we know today began with the work of famed naturalist and geologist, Edwin Mckee (Beus and Middleton, 2003). His work, in addition to those before and after, have led to a greater understanding of sedimentation processes, fossil preservation, the evolution of life, and the drastic changes to Earth’s climate during the Paleozoic. This paper seeks to summarize, generally, the Paleozoic strata, the environments in which they were deposited, and the sources from which the sediments were derived. Tapeats Sandstone (~525 Ma – 515 Ma) The Tapeats Sandstone is a buff colored, quartz-rich sandstone and conglomerate, deposited unconformably on the Grand Canyon Supergroup and Vishnu metamorphic basement (Middleton and Elliott, 2003). Thickness varies from ~100 m to ~350 m depending on the paleotopography of the basement rocks upon which the sandstone was deposited. The base of the unit contains the highest abundance of conglomerates. Cobbles and pebbles sourced from the underlying basement rocks are common in the basal unit. Grain size and bed thickness thins upwards (Middleton and Elliott, 2003). Common sedimentary structures include planar and trough cross-bedding, which both decrease in thickness up-sequence. Fossils are rare but within the upper part of the sequence, body fossils date to the early Cambrian (Middleton and Elliott, 2003). -
Program Book
ACE 101: Bridging Fundamentals and Innovation In conjunction with: PROGRAM BOOK Download the AAPG Events App! Sign Up for EXPLORER Digital Program Book Sponsored by: and Save 10% Today at the AAPG Center/Bookstore. explorer.aapg.org/register1 2 TABLE OF CONTENTS General Information Technical Program Business Center ........................................................................... 10 Theme Chairs ............................................................................... 41 ACE Service Center ....................................................................... 10 Oral Sessions at a Glance .............................................................. 42 Wi-Fi Hot Spot .............................................................................. 10 Poster Sessions at a Glance .......................................................... 44 Luggage Check ............................................................................. 10 Technical Program Sunday ............................................................ 47 Electronic Capturing ..................................................................... 10 Technical Program Monday ........................................................... 47 Lost and Found ............................................................................. 10 Technical Program Tuesday ........................................................... 59 No Smoking .................................................................................. 10 Technical Program Wednesday ..................................................... -
Grand Canyon
U.S. Department of the Interior Geologic Investigations Series I–2688 14 Version 1.0 4 U.S. Geological Survey 167.5 1 BIG SPRINGS CORRELATION OF MAP UNITS LIST OF MAP UNITS 4 Pt Ph Pamphlet accompanies map .5 Ph SURFICIAL DEPOSITS Pk SURFICIAL DEPOSITS SUPAI MONOCLINE Pk Qr Holocene Qr Colorado River gravel deposits (Holocene) Qsb FAULT CRAZY JUG Pt Qtg Qa Qt Ql Pk Pt Ph MONOCLINE MONOCLINE 18 QUATERNARY Geologic Map of the Pleistocene Qtg Terrace gravel deposits (Holocene and Pleistocene) Pc Pk Pe 103.5 14 Qa Alluvial deposits (Holocene and Pleistocene) Pt Pc VOLCANIC ROCKS 45.5 SINYALA Qti Qi TAPEATS FAULT 7 Qhp Qsp Qt Travertine deposits (Holocene and Pleistocene) Grand Canyon ၧ DE MOTTE FAULT Pc Qtp M u Pt Pleistocene QUATERNARY Pc Qp Pe Qtb Qhb Qsb Ql Landslide deposits (Holocene and Pleistocene) Qsb 1 Qhp Ph 7 BIG SPRINGS FAULT ′ × ′ 2 VOLCANIC DEPOSITS Dtb Pk PALEOZOIC SEDIMENTARY ROCKS 30 60 Quadrangle, Mr Pc 61 Quaternary basalts (Pleistocene) Unconformity Qsp 49 Pk 6 MUAV FAULT Qhb Pt Lower Tuckup Canyon Basalt (Pleistocene) ၣm TRIASSIC 12 Triassic Qsb Ph Pk Mr Qti Intrusive dikes Coconino and Mohave Counties, Pe 4.5 7 Unconformity 2 3 Pc Qtp Pyroclastic deposits Mr 0.5 1.5 Mၧu EAST KAIBAB MONOCLINE Pk 24.5 Ph 1 222 Qtb Basalt flow Northwestern Arizona FISHTAIL FAULT 1.5 Pt Unconformity Dtb Pc Basalt of Hancock Knolls (Pleistocene) Pe Pe Mၧu Mr Pc Pk Pk Pk NOBLE Pt Qhp Qhb 1 Mၧu Pyroclastic deposits Qhp 5 Pe Pt FAULT Pc Ms 12 Pc 12 10.5 Lower Qhb Basalt flows 1 9 1 0.5 PERMIAN By George H. -
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Index (Italic page numbers indicate major references) Abalone Cove landslide, California, Badger Spring, Nevada, 92, 94 Black Dyke Formation, Nevada, 69, 179, 180, 181, 183 Badwater turtleback, California, 128, 70, 71 abatement districts, California, 180 132 Black Mountain Basalt, California, Abrigo Limestone, Arizona, 34 Bailey ash, California, 221, 223 135 Acropora, 7 Baked Mountain, Alaska, 430 Black Mountains, California, 121, Adams Argillite, Alaska, 459, 462 Baker’s Beach, California, 267, 268 122, 127, 128, 129 Adobe Range, Nevada, 91 Bald Peter, Oregon, 311 Black Point, California, 165 Adobe Valley, California, 163 Balloon thrust fault, Nevada, 71, 72 Black Prince Limestone, Arizona, 33 Airport Lake, California, 143 Banning fault, California, 191 Black Rapids Glacier, Alaska, 451, Alabama Hills, California, 152, 154 Barrett Canyon, California, 202 454, 455 Alaska Range, Alaska, 442, 444, 445, Barrier, The, British Columbia, 403, Blackhawk Canyon, California, 109, 449, 451 405 111 Aldwell Formation, Washington, 380 Basin and Range Province, 29, 43, Blackhawk landslide, California, 109 algae 48, 51, 53, 73, 75, 77, 83, 121, Blackrock Point, Oregon, 295 Oahu, 6, 7, 8, 10 163 block slide, California, 201 Owens Lake, California, 150 Basin Range fault, California, 236 Blue Lake, Oregon, 329 Searles Valley, California, 142 Beacon Rock, Oregon, 324 Blue Mountains, Oregon, 318 Tatonduk River, Alaska, 459 Bear Meadow, Washington, 336 Blue Mountain unit, Washington, 380 Algodones dunes, California, 101 Bear Mountain fault zone, California, -
Paleontological Resources Report Coconino National Forest, Lake Mary Road and Highway 179, Sedona
United States Department of Agriculture Paleontological Forest Service Resources Southwestern Region Existing Conditions December 2013 Specialist Report Forest Plan Revision Draft Environmental Impact Statement (DEIS) Submitted by: __/s/ __Polly A. Haessig_______________________ Physical Scientist/NEPA Specialist Mogollon Rim Ranger District, Coconino National Forest Date: September 1, 2011 Revision Date: December 23, 2013 1 The U.S. Department of Agriculture (USDA) prohibits discrimination against its customers, employees, and applicants for employment on the bases of race, color, national origin, age, disability, sex, gender identity, religion, reprisal, and where applicable, political beliefs, marital status, familial or parental status, sexual orientation, or all or part of an individual's income is derived from any public assistance program, or protected genetic information in employment or in any program or activity conducted or funded by the Department. (Not all prohibited bases will apply to all programs and/or employment activities.) i Preface The information in this specialist report reflects analysis that was completed prior to and in conjunction with the completion of the Draft Environmental Impact Statement (DEIS) for the revision of the 1987 Coconino National Forest Land Management Plan (the Plan). The primary purpose of specialist reports associated with the DEIS is to provide detailed information to assist in the preparation of the DEIS. As the DEIS was prepared, review-driven edits to the broader DEIS resulted in modifications to some of the information contained in some of the specialist reports. As a result, some reports no longer contain information and analysis that was updated through an interdisciplinary review process and is included in the DEIS in its entirety. -
Importance of Groundwater in Propagating
CRevolution 2: Origin and Evolution of the Colorado River System II themed issue Crossey et al. Importance of groundwater in propagating downward integration of the 6–5 Ma Colorado River system: Geochemistry of springs, travertines, and lacustrine carbonates of the Grand Canyon region over the past 12 Ma L.C. Crossey1, K.E. Karlstrom1, R. Dorsey2, J. Pearce3, E. Wan4, L.S. Beard5, Y. Asmerom1, V. Polyak1, R.S. Crow1, A. Cohen6, J. Bright6, and M.E. Pecha6 1Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, New Mexico, 87131, USA 2Department of Geological Sciences, 1272 University of Oregon, Eugene, Oregon 97403-1272, USA 3U.S. Forest Service, Grand Mesa, Uncompahgre and Gunnison National Forests, Paonia Ranger District, 403 North Rio Grande Avenue, P.O. Box 1030, Paonia, Colorado 81428, USA 4U.S. Geological Survey, 345 Middlefield Road, MS977, Menlo Park, California 94025, USA 5U.S. Geological Survey, 2255 North Gemini Drive, Flagstaff, Arizona 86001, USA 6Department of Geosciences, The University of Arizona, 1040 East 4th Street, Tucson, Arizona 85721, USA ABSTRACT travertines, suggesting a long-lived spring- basins. Bouse carbonates display a southward fed lake/marsh system sourced from western trend toward less radiogenic 87Sr/86Sr values, We applied multiple geochemical tracers Colorado Plateau groundwater. Progressive higher [Sr], and heavier d18O that we attribute (87Sr/86Sr, [Sr], d13C, and d18O) to waters and up-section decrease in 87Sr/86Sr and d13C and to an increased proportion of Colorado River carbonates of the lower Colorado River sys- increase in d18O in the uppermost 50 m of the water through time plus increased evapora- tem to evaluate its paleohydrology over the Hualapai Limestone indicate an increase in tion from north to south. -
USGS General Information Product
Geologic Field Photograph Map of the Grand Canyon Region, 1967–2010 General Information Product 189 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior DAVID BERNHARDT, Secretary U.S. Geological Survey James F. Reilly II, Director U.S. Geological Survey, Reston, Virginia: 2019 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment—visit https://www.usgs.gov or call 1–888–ASK–USGS. For an overview of USGS information products, including maps, imagery, and publications, visit https://store.usgs.gov. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner. Suggested citation: Billingsley, G.H., Goodwin, G., Nagorsen, S.E., Erdman, M.E., and Sherba, J.T., 2019, Geologic field photograph map of the Grand Canyon region, 1967–2010: U.S. Geological Survey General Information Product 189, 11 p., https://doi.org/10.3133/gip189. ISSN 2332-354X (online) Cover. Image EF69 of the photograph collection showing the view from the Tonto Trail (foreground) toward Indian Gardens (greenery), Bright Angel Fault, and Bright Angel Trail, which leads up to the south rim at Grand Canyon Village. Fault offset is down to the east (left) about 200 feet at the rim. -
EIS-0386-DEIS-02-2007.Pdf
Draft WWEC PEIS September 2007 DOCUMENT CONTENTS VOLUME I Executive Summary Chapter 1: Why Are Federal Agencies Proposing to Designate Energy Corridors in the West? Chapter 2: What Are the Alternatives Evaluated in This PEIS? Chapter 3: What Are the Potential Environmental Consequences of Corridor Designation and Land Use Plan Amendment? Chapter 4: How Are Cumulative Impacts Evaluated? Chapter 5: What Unavoidable Adverse Impacts Might Be Caused by Corridor Designation and Land Use Plan Amendment? Chapter 6: The Relationship between Local Short-Term Uses of the Environment and Long-Term Productivity Chapter 7: What Irreversible and Irretrievable Commitment of Resources Would Be Involved with Implementation of the Alternatives? Chapter 8: List of Preparers Chapter 9: References Chapter 10: Glossary VOLUME II Appendix A: Proposed Land Use Plan Amendments Appendix B: Summary of Public Scoping Comments for the Programmatic Environmental Impact Statement, Designation of Energy Corridors on Federal Land in the 11 Western States (DOE/FS-0386) Appendix C: Tribal Consultation Appendix D: Federal and State Regulatory Requirements Potentially Applicable When Designating Energy Corridors Appendix E: Energy Transport Technologies and Hypothetical Energy Transport Projects Appendix F: Section 368 Corridor Parameters Appendix G: Sensitive Resource Areas That Would Be Intersected by Proposed West-wide Energy Corridors Appendix H: Geographic Information System Data Appendix I: Summary of WWEC PEIS Webcasts for Corridor Review and Revision, 6/19/06 to 4/24/07 -
Sequence Stratigraphy, Sedimentology, and Correlation of the Undifferentiated Cambrian Dolomites of the Grand Canyon and Lake Mead Area
UNLV Retrospective Theses & Dissertations 1-1-1997 Sequence stratigraphy, sedimentology, and correlation of the undifferentiated Cambrian dolomites of the Grand Canyon and Lake Mead area Viacheslav Sergeevich Korolev University of Nevada, Las Vegas Follow this and additional works at: https://digitalscholarship.unlv.edu/rtds Repository Citation Korolev, Viacheslav Sergeevich, "Sequence stratigraphy, sedimentology, and correlation of the undifferentiated Cambrian dolomites of the Grand Canyon and Lake Mead area" (1997). UNLV Retrospective Theses & Dissertations. 3332. http://dx.doi.org/10.25669/rlc2-a4bm This Thesis is protected by copyright and/or related rights. It has been brought to you by Digital Scholarship@UNLV with permission from the rights-holder(s). You are free to use this Thesis in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s) directly, unless additional rights are indicated by a Creative Commons license in the record and/ or on the work itself. This Thesis has been accepted for inclusion in UNLV Retrospective Theses & Dissertations by an authorized administrator of Digital Scholarship@UNLV. For more information, please contact [email protected]. INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. U M I films the text dnect^ from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter fiic^ whfle others may be from any type o f computer printer. The quality of this reproduction b dependent upon the quality of the copy snhmitted. Broken or indistinct pimt, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversety afifect rqnoduction. -
Mesozoic Tectonics of the Maria Fold and Thrust Belt and Mccoy Basin : an Examination of Polyphase Deformation and Synorogenic Response Anthony C
University of New Mexico UNM Digital Repository Earth and Planetary Sciences ETDs Electronic Theses and Dissertations 8-27-2009 Mesozoic tectonics of the Maria fold and thrust belt and McCoy basin : an examination of polyphase deformation and synorogenic response Anthony C. Salem Follow this and additional works at: https://digitalrepository.unm.edu/eps_etds Recommended Citation Salem, Anthony C.. "Mesozoic tectonics of the Maria fold and thrust belt and McCoy basin : an examination of polyphase deformation and synorogenic response." (2009). https://digitalrepository.unm.edu/eps_etds/75 This Dissertation is brought to you for free and open access by the Electronic Theses and Dissertations at UNM Digital Repository. It has been accepted for inclusion in Earth and Planetary Sciences ETDs by an authorized administrator of UNM Digital Repository. For more information, please contact [email protected]. MESOZOIC TECTONICS OF THE MARIA FOLD AND THRUST BELT AND MCCOY BASIN, SOUTHEASTERN CALIFORNIA: AN EXAMINATION OF POLYPHASE DEFORMATION AND SYNOROGENIC RESPONSE BY ANTHONY CHRISTOPHER SALEM B.S., Arizona State University, 1999 M.S.., Geological Sciences, Arizona State University, 2005 DISSERTATION Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Earth & Planetary Sciences The University of New Mexico Albuquerque, New Mexico August, 2009 ©2009, Anthony C. Salem iii DEDICATION For Audrey, my best friend, chief advisor, drill sergeant, sounding board, editor extraordinaire, GIS wizard, partner in crime and great love. Without her love and support, life and this work would have been a lonely endeavor. iv ACKNOWLEDGMENTS All the work that goes into conducting research and writing a dissertation may be indeed done by one person, but is actually the result of the efforts and support of many people who should be acknowledged.