DOCSLIB.ORG

Origin and Stratigraphic Relations of Cambrian Quartzites in Southeast Arizona

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Origin and Stratigraphic Relations of Cambrian Quartzites in Southeast Arizona Origin and stratigraphic relations of cambrian quartzites in southeast Arizona Item Type text; Thesis-Reproduction (electronic) Authors Bryant, Jeffrey Wayne, 1949- 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 or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 24/09/2021 17:58:55 Link to Item http://hdl.handle.net/10150/555103 ORIGIN AND STRATIGRAPHIC RELATIONS OF CAMBRIAN QUARTZITES IN SOUTHEAST ARIZONA by Jeffrey Wayne Bryant A Thesis Submitted to the Faculty of the DEPARTMENT OF GEOSCIENCES In Partial Fulfillment of the Requirements For the Degree of MASTER OF SCIENCE In the Graduate College THE UNIVERSITY OF ARIZONA 1 9 7 8 STATEMENT BY AUTHOR This thesis has been submitted in partial fulfillment of re­ quirements for an advanced degree at The University of Arizona and is deposited in the University Library to be made available to borrowers under rules of the Library. Brief quotations from this thesis are allowable without special permission, provided that accurate acknowledgment of source is made. Requests for permission for extended quotation from or reproduction of this manuscript in whole or in part may be granted by the head of the major department or the Dean of the Graduate College when in his judg­ ment the proposed use of the material is in the interests of scholar­ ship. In all other instances, however, permission must be obtained from the author. SIGNED: UJ APPROVAL BY THESIS DIRECTOR This thesis has been approved on the date shown below: ( 9 r f " Date ACKNOWLEDGMENTS I would like to thank my major advisor. Dr. Joseph F. Schreiber, Jr., for his assistance in this study and his willingness to accompany me into the field on many occasions. Dr. Schreiber not only gave freely of his time to discuss aspects of this study, but also took some of the photographs for this thesis. I would like to thank the other members of my committee, Drs. Karl W. Flessa and Richard F. Wilson, who critically reviewed this the­ sis and provided assistance during this study. Thanks are due also to Dr. Dietmar Schumacher, former Assistant Professor of Geosciences, for his help during the initial stages of this study. I would like to acknowledge the Phelps Dodge Corporation and the numerous ranchers of Cochise County who freely allowed access to their land. I am very grateful to the Union Oil Company of California Founda­ tion, which provided scholarship support for the academic year 1977-78. Finally, very special thanks are due to my wife, Mary Ann, for her patience, encouragement, and support throughout the course of this study. iii TABLE OF CONTENTS Page LIST OF ILLUSTRATIONS......................................... vi LIST OF T A B L E S ................................................ viii A B S T R A C T ...................................................... ix INTRODUCTION ...................................................... 1 Statement of the Problem Area of Study ........ Methods of Study . Previous Work ........ H MhJ 4> BOLSA QUARTZITE.................................................... 9 Name and Type L o c a l i t y ........................................ 9 General Description ............................................ 9 Distribution and Stratigraphic Limits ........................ 10 Petrology...................................................... 10 Sedimentary Structures .................................. 14 Thickness ...................................................... 17 Paleontology and A g e ......................................... 17 C o n t a c t s .................................................. 20 BOLSA QUARTZITE IN COCHISE COUNTY ................................. 22 Mule Mountains ............................................... 22 Whetstone Mountains..................................... 23 Dragoon Mountains . ............................................ 25 Little Dragoon Mountains ............................. 27 Swisshelm and Pedregosa Mountains.............................. 29 Dos Cabezas Mountains................................... 31 CORONADO QUARTZITE .......................................... 43 Name and Type L o c a l i t y ................................ 43 General Description ........................................... 43 Distribution and Stratigraphic Limits ......................... 44 Petrology............................. .. ............... 46 Sedimentary S t r u c t u r e s ...............".................... 50 Thickness...................................................... 56 Paleontology and A g e ..................................... 56 C o n t a c t s ................................................. 58 iv V TABLE OF CONTENTS— Continued Page CONDITIONS OF DEPOSITION ..................................... 59 Introduction ..... ................................. 59 Dos Cabezas and Chiricahua M o u n t a i n s ..................... 59 Swisshelm Mountains.................. 63 Morenci A r e a .............................................. 64 Regional Relations of the Cambrian Strata in Southeast A r i z o n a ................ 66 SUGGESTIONS FOR FUTURE STUDY . .............................. 68 APPENDIX A: CAMBRIAN QUARTZITE LOCALITIES EXAMINED .......... 69 APPENDIX B: MEASURED STRATIGRAPHIC SECTIONS . ........ 71 Dos Cabezas Mountains.................. 71 Phelps Dodge Lime Quarry, Clifton ................ ;... 76 REFERENCES CITED .............................................. 81 LIST OF ILLUSTRATIONS Figure Page 1. Location M a p .............................................. 3 2. Cambrian Correlation Chart ............................... 7 3. Basal Conglomerate, Bolsa Quartzite in the Whetstone M o u n t a i n s ................................. 12 4. Interbedded Shale and Sandstone, Bolsa Quartzite in the Barren Hills a Few Kilometers Northwest of the Swisshelm M o u n t a i n s .................. 13 5. Wedge-planar Cross-stratification, Bolsa Quartzite in the Dos Cabezas Mountains......................... 15 6. Tabular-planar Cross-stratification, Bolsa Quartzite in the Swisshelm Mountains........................... 16 7. Scolithus Tubes (Vertical Burrows), Bolsa Quartzite in the Whetstone Mountains........................... 18 8. Horizontal Burrows on Bedding Plane, Bolsa Quartzite in the Little Dragoon M o u n t a i n s ..................... 19 9. Contact between Bolsa Quartzite and Rattlesnake Point Granite in the Dos Cabezas Mountains.......... 34 10. Quartzite Pebble-cobble-boulder Conglomerate, Bolsa Quartzite in the Dos Cabezas Mountains.............. 35 11. Cumulative Weight Percent Curve for Unit 3, Bolsa Quartzite in the Dos Cabezas Mountains............... 39 12. Homfels Unit, Lower Member of the Abrigo Formation in the Dos Cabezas Mountains......................... 40 13. Typical Abrigo-type Weathering, Abrigo Formation in the Dragoon Mountains ...................... 41 14. Contact between Bliss Sandstone Equivalent and Metcalf Granite near Morenci ......................... 48 15. Glauconite Surrounding Quartz Grains;1 from Unit 10, Bliss Sandstone Equivalent near Morenci ............ 51 vi vii LIST OF ILLUSTRATIONS— Continued Figure Page 16. Zoned Dolomite Replacing Quartz Grains; from Unit 14, Bliss Sandstone Equivalent near Morenci .......... 52 17. Top Sandstone Unit of Bliss Sandstone Equivalent near Morenci .................... 53 18. Contact between Dolomite Intraclast and Sandstone; from Unit 17, Bliss Sandstone Equivalent near M o r e n c i ....................................... .. 54 19. Quartz Grain Showing Quartz Overgrowths Typical of Quartzarenites in Southeast Arizona ................ 55 20. Fucoidal Markings on Bedding Plane, Bliss Sandstone Equivalent near M o r e n c i ........................... 57 21. Bowie Mountain, between the Dos Cabezas and Chiricahua M o u n t a i n s ......................................... 60 22. Contact between the Pinal Schist and BoIsa Quartzite in the Northern Chiricahua Mountains ............... 62 23. Inferred Stratigraphic Relations of Cambrian Forma­ tions in Southeast Arizona ......................... 67 24. The Dos Cabezas S e c t i o n ................................ 72 25. Lime Quarry Section near M o r e n c i ....................... 77 LIST OF TABLES Table Page I. Described Localities of the Bolsa Quartzite in Southeast Arizona ................................ 5 II. Petrographic Data, Dos Cabezas Section ............... 36 III. Petrographic Data, Lime Quarry Section ........... 47 viii ABSTRACT An investigation of the Cambrian Bolsa and Coronado Quartzites was made to describe regional stratigraphic relationships and conditions of deposition in southeast Arizona. The Bolsa Quartzite consists mainly of siliceous quartzarenite which changes from coarser grained and feld- spathic near the base to finer grained and quartzose near the top. A basal conglomerate is common and varies in thickness and composition according to the geographic location of the outcrop and the lithology of the underlying Precambrian rock units. The Bolsa ranges between 100 and 150 meters in thickness. The Coronado Quartzite is composed of more lithologies than the Bolsa Quartzite, consisting of shale, siltstone, sandstone, dolomite, and glauconitic and hematitic sandstone. The Coronado and the lower part of the Longfellow Limestone are correlated to the Bliss Sandstone of New Mexico.
Load more

Recommended publications
  • Chiricahua Leopard Frog (Rana Chiricahuensis)
    U.S. Fish & Wildlife Service Chiricahua Leopard Frog (Rana chiricahuensis) Final Recovery Plan April 2007 CHIRICAHUA LEOPARD FROG (Rana chiricahuensis) RECOVERY PLAN Southwest Region U.S. Fish and Wildlife Service Albuquerque, New Mexico DISCLAIMER Recovery plans delineate reasonable actions that are believed to be required to recover and/or protect listed species. Plans are published by the U.S. Fish and Wildlife Service, and are sometimes prepared with the assistance of recovery teams, contractors, state agencies, and others. Objectives will be attained and any necessary funds made available subject to budgetary and other constraints affecting the parties involved, as well as the need to address other priorities. Recovery plans do not necessarily represent the views nor the official positions or approval of any individuals or agencies involved in the plan formulation, other than the U.S. Fish and Wildlife Service. They represent the official position of the U.S. Fish and Wildlife Service only after they have been signed by the Regional Director, or Director, as approved. Approved recovery plans are subject to modification as dictated by new findings, changes in species status, and the completion of recovery tasks. Literature citation of this document should read as follows: U.S. Fish and Wildlife Service. 2007. Chiricahua Leopard Frog (Rana chiricahuensis) Recovery Plan. U.S. Fish and Wildlife Service, Southwest Region, Albuquerque, NM. 149 pp. + Appendices A-M. Additional copies may be obtained from: U.S. Fish and Wildlife Service U.S. Fish and Wildlife Service Arizona Ecological Services Field Office Southwest Region 2321 West Royal Palm Road, Suite 103 500 Gold Avenue, S.W.
    [Show full text]
  • Section 9-Sierra Vista Subbasin of the Upper San Pedro Basin, Arizona
    Section 9.—Conceptual Understanding and Groundwater Quality of the Basin-Fill Aquifer in the Sierra Vista Subbasin of the Upper San Pedro Basin, Arizona By David W. Anning and James M. Leenhouts in Conceptual Understanding and Groundwater Quality of Selected Basin- Fill Aquifers in the Southwestern United States Edited by Susan A. Thiros, Laura M. Bexfield, David W. Anning, and Jena M. Huntington National Water-Quality Assessment Program Professional Paper 1781 U.S. Department of the Interior U.S. Geological Survey ii Contents Basin Overview .........................................................................................................................................145 Water Development History .....................................................................................................................147 Hydrogeology .............................................................................................................................................148 Conceptual Understanding of the Groundwater Flow System ...........................................................149 Water Budget ....................................................................................................................................149 Groundwater Movement .................................................................................................................152 Effects of Natural and Human Factors on Groundwater Quality ......................................................157 Summary......................................................................................................................................................160
    [Show full text]
  • The Depositional Environment and Petrographic Analysis of the Lower Cretaceous Morita Formation, Bisbee Group, Southeastern Arizona and Northern Sonora, Mexico
    The depositional environment and petrographic analysis of the Lower Cretaceous Morita Formation, Bisbee Group, southeastern Arizona and northern Sonora, Mexico Item Type text; Thesis-Reproduction (electronic); maps Authors Jamison, Kermit 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 or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 07/10/2021 12:34:21 Link to Item http://hdl.handle.net/10150/557979 THE DEPOSITIONAL ENVIRONMENT AND PETROGRAPHIC ANALYSIS OF THE LOWER CRETACEOUS MORITA FORMATION, BISBEE GROUP, SOUTHEASTERN ARIZONA AND NORTHERN SONORA, MEXICO by HERMIT JAMISON A Thesis Submitted to the Faculty of the DEPARTMENT OF GEOSCIENCES In Partial Fulfillment of the Requirements For the Degree of MASTER OF SCIENCE WITH A MAJOR IN GEOLOGY In the Graudate College THE UNIVERSITY OF ARIZONA 1 9 8 3 Call N o . BINDING INSTRUCTIONS INTERLIBRARY INSTRUCTIONS Dept. i *9 7 9 1 Author: J ttm ilO Il, K e 1983 548 Title: RUSH____________________ PERMABIND- PAMPHLET GIFT________________ _____ COLOR: M .S . POCKET FOR MAP COVERS Front Both Special Instructions - Bindery or Repair PFFFPFKirF 3 /2 2 /8 5 Other-----------------------------— . r- STATEMENT BY AUTHOR This thesis has been submitted in partial fulfill­ ment of requirements for an advanced degree at The University of Arizona and is deposited in the University Library to be made available to borrowers under rules of the Library. Brief quotations from this thesis are allowable without special permission, provided that accurate acknow­ ledgement of source is made.
    [Show full text]
  • Schedule of Proposed Action (SOPA) 04/01/2021 to 06/30/2021 Coronado National Forest This Report Contains the Best Available Information at the Time of Publication
    Schedule of Proposed Action (SOPA) 04/01/2021 to 06/30/2021 Coronado National Forest This report contains the best available information at the time of publication. Questions may be directed to the Project Contact. Expected Project Name Project Purpose Planning Status Decision Implementation Project Contact Projects Occurring Nationwide Gypsy Moth Management in the - Vegetation management Completed Actual: 11/28/2012 01/2013 Susan Ellsworth United States: A Cooperative (other than forest products) 775-355-5313 Approach [email protected]. EIS us *UPDATED* Description: The USDA Forest Service and Animal and Plant Health Inspection Service are analyzing a range of strategies for controlling gypsy moth damage to forests and trees in the United States. Web Link: http://www.na.fs.fed.us/wv/eis/ Location: UNIT - All Districts-level Units. STATE - All States. COUNTY - All Counties. LEGAL - Not Applicable. Nationwide. Locatable Mining Rule - 36 CFR - Regulations, Directives, In Progress: Expected:12/2021 12/2021 Sarah Shoemaker 228, subpart A. Orders NOI in Federal Register 907-586-7886 EIS 09/13/2018 [email protected] d.us *UPDATED* Est. DEIS NOA in Federal Register 03/2021 Description: The U.S. Department of Agriculture proposes revisions to its regulations at 36 CFR 228, Subpart A governing locatable minerals operations on National Forest System lands.A draft EIS & proposed rule should be available for review/comment in late 2020 Web Link: http://www.fs.usda.gov/project/?project=57214 Location: UNIT - All Districts-level Units. STATE - All States. COUNTY - All Counties. LEGAL - Not Applicable. These regulations apply to all NFS lands open to mineral entry under the US mining laws.
    [Show full text]
  • The Disastrous Impacts of Trump's Border Wall on Wildlife
    a Wall in the Wild The Disastrous Impacts of Trump’s Border Wall on Wildlife Noah Greenwald, Brian Segee, Tierra Curry and Curt Bradley Center for Biological Diversity, May 2017 Saving Life on Earth Executive Summary rump’s border wall will be a deathblow to already endangered animals on both sides of the U.S.-Mexico border. This report examines the impacts of construction of that wall on threatened and endangered species along the entirety of the nearly 2,000 miles of the border between the United States and Mexico. TThe wall and concurrent border-enforcement activities are a serious human-rights disaster, but the wall will also have severe impacts on wildlife and the environment, leading to direct and indirect habitat destruction. A wall will block movement of many wildlife species, precluding genetic exchange, population rescue and movement of species in response to climate change. This may very well lead to the extinction of the jaguar, ocelot, cactus ferruginous pygmy owl and other species in the United States. To assess the impacts of the wall on imperiled species, we identified all species protected as threatened or endangered under the Endangered Species Act, or under consideration for such protection by the U.S. Fish and Wildlife Service (“candidates”), that have ranges near or crossing the border. We also determined whether any of these species have designated “critical habitat” on the border in the United States. Finally, we reviewed available literature on the impacts of the existing border wall. We found that the border wall will have disastrous impacts on our most vulnerable wildlife, including: 93 threatened, endangered and candidate species would potentially be affected by construction of a wall and related infrastructure spanning the entirety of the border, including jaguars, Mexican gray wolves and Quino checkerspot butterflies.
    [Show full text]
  • State of the Coronado National Forest
    Douglas RANGER DISTRICT www.skyislandaction.org 3-1 State of the Coronado Forest DRAFT 11.05.08 DRAFT 11.05.08 State of the Coronado Forest 3-2 www.skyislandaction.org CHAPTER 3 Dragoon Ecosystem Management Area The Dragoon Mountains are located at the heart of development. Crossing Highway 80, one passes the Coronado National Forest. The Forest through another narrow strip of private land and encompasses 52,411 acres of the mountains in an area enters the BLM-managed San Pedro Riparian some 15 miles long by 6 miles wide. The Dragoon National Conservation Area. On the west side of the Ecosystem Management Area (EMA) is the smallest San Pedro River, the valley (mostly under private and on the Forest making it sensitive to activities state land jurisdiction) slopes up to the Whetstone happening both on the Forest and in lands Mountains, another Ecosystem Management Area of surrounding the Forest. Elevations range from the Coronado National Forest. approximately 4,700 feet to 7,519 feet at the summit of Due to the pattern of ecological damage and Mount Glenn. (See Figure 3.1 for an overview map of unmanaged visitor use in the Dragoons, we propose the Dragoon Ecosystem Management Area.) the area be divided into multiple management units ( The Dragoons are approximately sixty miles 3.2) with a strong focus on changing management in southeast of Tucson and thirty-five miles northeast of the Dragoon Westside Management Area (DWMA). Sierra Vista. Land adjacent to the western boundary of In order to limit overall impacts on the Westside, a the Management Area is privately owned and remains visitor permit system with a cap on daily visitor relatively remote and sparsely roaded compared to the numbers is recommended.
    [Show full text]
  • Department of the Interior U.S
    DEPARTMENT OF THE INTERIOR U.S. FISH AND WILDLIFE SERVICE REGION 2 DIVISION OF ENVIRONMENTAL CONTAMINANTS CONTAMINANTS IN BIGHORN SHEEP ON THE KOFA NATIONAL WIL DLIFE REFUGE, 2000-2001 By Carrie H. Marr, Anthony L. Velasco1, and Ron Kearns2 U.S. Fish and Wildlife Service Arizona Ecological Services Office 2321 W. Royal Palm Road, Suite 103 Phoenix, Arizona 85021 August 2004 2 ABSTRACT Soils of abandoned mines on the Kofa National Wildlife Refuge (KNWR) are contaminated with arsenic, barium, mercury, manganese, lead, and zinc. Previous studies have shown that trace element and metal concentrations in bats were elevated above threshold concentrations. High trace element and metal concentrations in bats suggested that bighorn sheep also may be exposed to these contaminants when using abandoned mines as resting areas. We found evidence of bighorn sheep use, bighorn sheep carcasses, and scat in several abandoned mines. To determine whether bighorn sheep are exposed to, and are accumulating hazardous levels of metals while using abandoned mines, we collected soil samples, as well as scat and bone samples when available. We compared mine soil concentrations to Arizona non-residential clean up levels. Hazard quotients were elevated in several mines and elevated for manganese in one Sheep Tank Mine sample. We analyzed bighorn sheep tissues for trace elements. We obtained blood, liver, and bone samples from hunter-harvested bighorn in 2000 and 2001. Arizona Game and Fish Department also collected blood from bighorn during a translocation operation in 2001. Iron and magnesium were elevated in tissues compared to reference literature concentrations in other species. Most often, domestic sheep baseline levels were used for comparison because of limited available data for bighorn sheep.
    [Show full text]
  • By Douglas P. Klein with Plates by G.A. Abrams and P.L. Hill U.S. Geological Survey, Denver, Colorado
    U.S DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY STRUCTURE OF THE BASINS AND RANGES, SOUTHWEST NEW MEXICO, AN INTERPRETATION OF SEISMIC VELOCITY SECTIONS by Douglas P. Klein with plates by G.A. Abrams and P.L. Hill U.S. Geological Survey, Denver, Colorado Open-file Report 95-506 1995 This report is preliminary and has not been edited or reviewed for conformity with U.S. Geological Survey editorial standards. The use of trade, product, or firm names in this papers is for descriptive purposes only, and does not imply endorsement by the U.S. Government. STRUCTURE OF THE BASINS AND RANGES, SOUTHWEST NEW MEXICO, AN INTERPRETATION OF SEISMIC VELOCITY SECTIONS by Douglas P. Klein CONTENTS INTRODUCTION .................................................. 1 DEEP SEISMIC CRUSTAL STUDIES .................................. 4 SEISMIC REFRACTION DATA ....................................... 7 RELIABILITY OF VELOCITY STRUCTURE ............................. 9 CHARACTER OF THE SEISMIC VELOCITY SECTION ..................... 13 DRILL HOLE DATA ............................................... 16 BASIN DEPOSITS AND BEDROCK STRUCTURE .......................... 20 Line 1 - Playas Valley ................................... 21 Cowboy Rim caldera .................................. 23 Valley floor ........................................ 24 Line 2 - San Luis Valley through the Alamo Hueco Mountains ....................................... 25 San Luis Valley ..................................... 26 San Luis and Whitewater Mountains ................... 26 Southern
    [Show full text]
  • Wild Cats of the Sky Islands: a Summary of Monitoring Efforts Using Noninvasive Techniques
    Wild Cats of the Sky Islands: A Summary of Monitoring Efforts Using Noninvasive Techniques Lisa Haynes, Zoe Hackl, and Melanie Culver School of Renewable Natural Resources, University of Arizona, Tucson, AZ Abstract—A variety of efforts are taking place to detect, inventory, and monitor the wild felids (pumas, bobcats, jaguars, and ocelots) of the Madrean Archipelago. Researchers are using a suite of noninvasive methods, including infrared-triggered photography, DNA analysis of scat and hair (collected from “hair snares”), and old-fashioned tracking and sign searches. These efforts are being conducted by a variety of academic, government, and non-governmental organizations in the United States and Mexico. We briefly outline the various projects including their results to date, discuss threats to native felids in the region, and provide recommendations for further research, monitoring, and conservation. wildlife—all contributed to a recent flurry of activity to gather Introduction information on the wild cats of the Madrean Archipelago. In The region known as the Madrean Archipelago in the this paper we briefly describe the techniques, summarize wild Southwestern United States and Northwestern Mexico is, cat-related projects in the region, and discuss management and in many ways, unique. It crosses the boundary between two conservation implications. We emphasize noninvasive tech- nations and is influenced by two major climatic regimes, niques, since they are more commonly used in these projects; tropical and temperate. It is extraordinarily diverse ecologi- however, we briefly mention standard capture/radio telemetry cally and is home to 4, possibly 5, species of native wild cats. efforts, where applicable. Two felid species, the bobcat (Lynx rufus) and puma (Puma concolor) (also known as cougar, mountain lion, and panther) are relatively common throughout the region.
    [Show full text]
  • 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) .
    [Show full text]
  • Coronado National Forest Draft Land and Resource Management Plan I Contents
    United States Department of Agriculture Forest Service Coronado National Forest Southwestern Region Draft Land and Resource MB-R3-05-7 October 2013 Management Plan Cochise, Graham, Pima, Pinal, and Santa Cruz Counties, Arizona, and Hidalgo County, New Mexico The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or part of an individual’s income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA’s TARGET Center at (202) 720-2600 (voice and TTY). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue SW, Washington, DC 20250-9410, or call (800) 795-3272 (voice) or (202) 720-6382 (TTY). USDA is an equal opportunity provider and employer. Front cover photos (clockwise from upper left): Meadow Valley in the Huachuca Ecosystem Management Area; saguaros in the Galiuro Mountains; deer herd; aspen on Mt. Lemmon; Riggs Lake; Dragoon Mountains; Santa Rita Mountains “sky island”; San Rafael grasslands; historic building in Cave Creek Canyon; golden columbine flowers; and camping at Rose Canyon Campground. Printed on recycled paper • October 2013 Draft Land and Resource Management Plan Coronado National Forest Cochise, Graham, Pima, Pinal, and Santa Cruz Counties, Arizona Hidalgo County, New Mexico Responsible Official: Regional Forester Southwestern Region 333 Broadway Boulevard, SE Albuquerque, NM 87102 (505) 842-3292 For Information Contact: Forest Planner Coronado National Forest 300 West Congress, FB 42 Tucson, AZ 85701 (520) 388-8300 TTY 711 [email protected] Contents Chapter 1.
    [Show full text]
  • Dos Cabezas Mountains Proposed LWC Is Affected Primarily by the Forces of Nature and Appears Natural to the Average Visitor
    DOS CABEZAS MOUNTAINS LANDS WITH WILDERNESS CHARACTERISTICS PUBLIC LANDS CONTIGUOUS TO THE BLM’S DOS CABEZAS MOUNTAINS WILDERNESS IN THE NORTHERN CHIRICAHUA MOUNTAINS, ARIZONA A proposal report to the Bureau of Land Management, Safford Field Office, Arizona APRIL, 2016 Prepared by: Joseph M. Trudeau, Amber R. Fields, & Shannon Maitland Dos Cabezas Mountains Wilderness Contiguous Proposed LWC TABLE OF CONTENTS PREFACE: This Proposal was developed according to BLM Manual 6310 page 3 METHODS: The research approach to developing this citizens’ proposal page 5 Section 1: Overview of the Proposed Lands with Wilderness Characteristics Unit Introduction: Overview map showing unit location and boundaries page 8 • provides a brief description and labels for the units’ boundary Previous Wilderness Inventories: Map of former WSA’s or inventory unit’s page 9 • provides comparison between this and past wilderness inventories, and highlights new information Section 2: Documentation of Wilderness Characteristics The proposed LWC meets the minimum size criteria for roadless lands page 11 The proposed LWC is affected primarily by the forces of nature page 12 The proposed LWC provides outstanding opportunities for solitude and/or primitive and unconfined recreation page 16 A Sky Island Adventure: an essay and photographs by Steve Till page 20 MAP: Hiking Routes in the Dos Cabezas Mountains discussed in this report page 22 The proposed LWC has supplemental values that enhance the wilderness experience & deserve protection page 23 Conclusion: The proposed
    [Show full text]