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The Laccolith-Stock Controversy: New Results from the Southern Henry Mountains, Utah
The laccolith-stock controversy: New results from the southern Henry Mountains, Utah MARIE D. JACKSON* Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, Maryland 21218 DAVID D. POLLARD Departments of Applied Earth Sciences and Geology, Stanford University, Stanford, California 94305 ABSTRACT rule out the possibility of a stock at depth. At Mesa, Fig. 1). Gilbert inferred that the central Mount Hillers, paleomagnetic vectors indi- intrusions underlying the large domes are Domes of sedimentary strata at Mount cate that tongue-shaped sills and thin lacco- floored, mushroom-shaped laccoliths (Fig. 3). Holmes, Mount Ellsworth, and Mount Hillers liths overlying the central intrusion were More recently, C. B. Hunt (1953) inferred that in the southern Henry Mountains record suc- emplaced horizontally and were rotated dur- the central intrusions in the Henry Mountains cessive stages in the growth of shallow (3 to 4 ing doming through about 80° of dip. This are cylindrical stocks, surrounded by zones of km deep) magma chambers. Whether the in- sequence of events is not consistent with the shattered host rock. He postulated a process in trusions under these domes are laccoliths or emplacement of a stock and subsequent or which a narrow stock is injected vertically up- stocks has been the subject of controversy. contemporaneous lateral growth of sills and ward and then pushes aside and domes the sed- According to G. K. Gilbert, the central intru- minor laccoliths. Growth in diameter of a imentary strata as it grows in diameter. After the sions are direct analogues of much smaller, stock from about 300 m at Mount Holmes to stock is emplaced, tongue-shaped sills and lacco- floored intrusions, exposed on the flanks of nearly 3 km at Mount Hillers, as Hunt sug- liths are injected radially from the discordant the domes, that grew from sills by lifting and gested, should have been accompanied by sides of the stock (Fig. -
Reconnaissance of the Northwest Rim of the Colorado River Basin
RME -77(Pt. ~ ) / Subject Category :' GEOLOGY 'AND MINERA,LOGY U NI TED STATES ATOMIC ENERGY COMM I SSION RECONN.AISS ...-lliCE OF THE NORTHWEST RIM OF THE COLORADO RIVER BASIN, WAYNE AND GARFIELD COUNTIES, UTAH By Robert C. Ge rhard January 1955 Exploration Division Grand J unct ion Operations Office Grand Junction, Colorado Tech n ic a l In formation Ser v i ce Oak. R i dge Te n nes s ee UNCLASSI FI ED I. REC (o NNA l qSA CE OF THE NORYrI1rJEST Rill OF' THE- COLORA OO RIVER BASIN, .. WAYNE AND GARFIELD COUN TIES, UTAH . .- ABSTRACT About five mont hs ' f:eld work was devoted to examining the Salt Wash and Mossback outcrops i n a 1,0 O-square--mile area along the north-" . west r"JTl of 'thE; Co oraclo River, Wayne and Garfield Counties, Utah.- In the Little Rockies district, oxidized d~posits of vanadium- . _ uranium ore, associated chiefl ; with ca r bonized wood, logs, and plant '. "~. fragments, occur in extremely small lenses in two horizons of the Salt ~~: Wash member of t he Morrison f ormation. Beca use of the small l~ri tic ular : .~. nature of presently known or ebodies, ?hysical ~xploration in t his dist r1c t ~ ~ does not now appear to be econOIll:..ca.J..J.Y f easible. 0 -' • __ - . .. "In the Sout he rn Green River Desert, urap.ium m:i.n era liz~tion a Ssc 'cia ted.} ~ ~'~:' ~ ~' with carbon trash, asphaltite, and copper mi nerals occurs in the lower " -~ .: Mossback channel unit fillino paleochannels cut into the Moenkopi for.mation ~ -:-" .. -
Utah G E Ological Mineral Survey
UTAH G E OLOGICAL & MINERAL SURVEY PAGEl SURVEY N OTES VOLUME 23 NUMBER 1 TABLE OF CONTENTS Antelope Island State Park . • . 2 Contributors to Geologic Mapping in Utah ... ..• • ..•.......... 15 FROM THE New Geologic Databases for Utah .•. 18 Wanted - High-Quality Geologic DIRECTOR'S CORNER Mappers • ...•...•.. • ...... • • 22 AAPG Cross Section of Utah ... .. •• 22 Update on Geologic Mapping .. ..... 23 Books & Papers ......•...... .• .. 24 New Publications ... •.•• . ..... 25 UGMS Staff • •.•• ... • .. • ... .. .• 25 Cover photos courtesy of ASCS and the UGMS Mapping Section. Design by Frampton/Associates. Th is issue of Survey Notes highlights proach. UGMS generalized mission is STA TE OF UTAH the work of UGMS Geologic Mapping to make the state richer, safer, and bet NORMAN H. BANGERTER, GOVERNOR Program. The feature article cele ter understood geologically. Geologic DEPARTMENT OF NATURAL RESOURCES brates the completion of a major map mapping is one of the primary ways we DEE C. HANSEN , EXE CUTIVE DIRE CTOR ping project which has resulted in a accomplish these tasks. We intend to SURVEY NOTES STAFF better understanding of Antelope ls systematically map all areas of the state EDITOR J. STRINGFELLOW land's geology and recreational poten at a suitable scale for multiple users. EDITORIAL STAFF tial. Several publications about the Multipurpose maps are designed for Julia M. McQueen, Patti Frampton island will be available later this year at least three general uses. This first is CARTOGRAPHERS including a geology map and explan to help find energy, mineral and Kent D. Brown, James W. Parker, Patricia H. atory brochure, a thick volume contain water resources. Energy resources and Speranza ing several technical articles, and a minerals are found in special geologic UGMSSTAFF number of publications especially de environments such as in faults and fis signed for visitors to the island who ADMINISTRATION sures, or in certain rock formations, or GENEVIEVE ATWOOD, Director want to better understand its geology. -
National Park Service U.S
National Park Service U.S. Department of the Interior Natural Resource Stewardship and Science DOI Bison Report Looking Forward Natural Resource Report NPS/NRSS/BRMD/NRR—2014/821 ON THE COVER Bison bull at southeastern Utah's Henry Mountains Photograph by Utah Division of Wildlife Resources DOI Bison Report Looking Forward Natural Resource Report NPS/NRSS/BRMD/NRR—2014/821 Prepared by the Department of the Interior Bison Leadership Team and Working Group National Park Service Biological Resource Management Division 1201 Oakridge Drive, Suite 200 Fort Collins, Colorado 80525 June 2014 U.S. Department of the Interior National Park Service Natural Resource Stewardship and Science Fort Collins, Colorado The National Park Service, Natural Resource Stewardship and Science office in Fort Collins, Colorado, publishes a range of reports that address natural resource topics. These reports are of interest and applicability to a broad audience in the National Park Service and others in natural resource management, including scientists, conservation and environmental constituencies, and the public. The Natural Resource Report Series is used to disseminate high-priority, current natural resource management information with managerial application. The series targets a general, diverse audience, and may contain NPS policy considerations or address sensitive issues of management applicability. All manuscripts in the series receive the appropriate level of peer review to ensure that the information is scientifically credible, technically accurate, appropriately written for the intended audience, and designed and published in a professional manner. This report received informal peer review by subject-matter experts who were not directly involved in the collection, analysis, or reporting of the data. -
The Yellowstone Paleontological Survey
E PALEONT ON O T LO S G W I O C L A L L E National Y Park The Yellowstone Service Department of the Interior Paleontological Survey SURVEY Vincent L. Santucci Yellowstone Center for Resources National Park Service Yellowstone National Park, Wyoming YCR-NR-98-1 1998 How to cite this document: Santucci, V. L. 1998. The Yellowstone Paleontological Survey. Yellowstone Center for Resources, National Park Service, Yellowstone National Park, Wyoming,YCR-NR-98-1. Current address for Vincent L. Santucci is National Park Service, P.O. Box 592, Kemmerer, WY 83101. The Yellowstone Paleontological Survey To Lt. Col. Luke J. Barnett, III “Uncle by blood, brother in spirit!” Vincent L. Santucci Yellowstone Center for Resources National Park Service Yellowstone National Park, Wyoming YCR-NR-98-1 1998 Table of Contents Introduction .................................................................................................... 1 Stratigraphy .................................................................................................... 4 Fossil Chronology........................................................................................... 6 Taxonomy ..................................................................................................... 12 Localities ...................................................................................................... 15 Interpretation ................................................................................................ 19 Paleontological Resource Management....................................................... -
Mineral Resources of the Bull Mountain Wilderness Study Area, Garfield and Wayne Counties, Utah
Mineral Resources of the Bull Mountain Wilderness Study Area, Garfield and Wayne Counties, Utah U.S. GEOLOGICAL SURVEY BULLETIN 1751-B Chapter B Mineral Resources of the Bull Mountain Wilderness Study Area, Garfield and Wayne Counties, Utah By RUSSELL F. DUBIEL, CALVIN S. BROMFIELD, STANLEY E. CHURCH, WILLIAM M. KEMP, MARK J. LARSON, and FRED PETERSON U.S. Geological Survey JOHN T. NEUBERT U.S. Bureau of Mines U.S. GEOLOGICAL SURVEY BULLETIN 1751 MINERAL RESOURCES OF WILDERNESS STUDY AREAS- HENRY MOUNTAINS REGION, UTAH DEPARTMENT OF THE INTERIOR DONALD PAUL MODEL, Secretary U. S. GEOLOGICAL SURVEY Dallas L. Peck, Director UNITED STATES GOVERNMENT PRINTING OFFICE: 1988 For sale by the Books and Open-File Reports Section U.S. Geological Survey Federal Center Box 25425 Denver, CO 80225 Library of Congress Cataloging in Publication Data Mineral resources of the Bull Mountain Wilderness Study Area, Garfield and Wayne Counties, Utah. (Mineral resources of wilderness study areas Henry Mountains Region, Utah ; ch. B) (Studies related to wilderness) (U.S. Geological Survey bulletin ; 1751) Bibliography: p. Supt. of Docs, no.: I 19.3:1751-8 1. Mines and mineral resources Utah Bull Mountain Wilderness. 2. Bull Mountain Wilderness (Utah) I. Dubiel, Russell F. II. Series. III. Series: Studies related to wilderness wilderness areas. IV. Series: U.S. Geological Survey bulletin ; 1751-B. QE75.B9 no. 1751-B 557.3s 87-600433 [TN24.U8] [553'.09792'52] [TN24.C6] STUDIES RELATED TO WILDERNESS Bureau of Land Management Wilderness Study Areas The Federal Land Policy and Management Act (Public Law 94-579, October 21, 1976) requires the U.S. -
Scientific Assessment of Yellowstone National Park Winter Use March 2011
Scientific Assessment of Yellowstone National Park Winter Use March 2011 Prepared in support of the Yellowstone National Park Winter Use Plan / Environmental Impact Statement 1 Executive Summary The purpose of this Science Advisory Team report is to summarize available scientific information in five topics related to the effects of snowmobile and snowcoach (oversnow vehicle (OSV)) use at Yellowstone National Park (YNP), and identify key findings for assessing the potential effects of OSV use, and propose future research to help address questions that cannot be resolved at present. These are some of the findings from this assessment. Air Quality Air pollution related to winter OSVs at the park has primarily been problematic at congested locations such as the entrance stations, rest areas, thermal feature parking lots, and at Old Faithful. Measurements have shown that pollutant concentrations drop off rapidly with distance from the road and that air quality generally improves to near regional concentrations overnight (Ray, 2008; Sive, 2003; Zhou, 2010). The air quality condition for CO and PM2.5 attributable to OSV traffic is currently well below the federal air quality standards at the congested areas near the west entrance and Old Faithful. Air quality conditions along most of the road segments are expected to be similar to the Old Faithful concentrations. At distances beyond 300-500 m from the roads, concentrations of CO, PM2.5, and organics would be expected to approach background concentrations. NO2 concentrations have been measured at concentrations at 20-80% of the standard by continuous monitors and for short periods at concentrations above 0.1 ppm. -
Yellowstone National Park Resources and Issues: Geology
The landscape of Yellowstone National Park is the result of many geological processes. Here, glacial erratics (foreground), ground moraines (midground), and Cutoff Mountain (background) appear near Junction Butte. Geology GEOLOGY The landscape of the Greater Yellowstone Ecosystem miles in diameter) is extremely hot but solid due to is the result various geological processes over the last immense pressure. The iron and nickel outer core 150 million years. Here, Earth’s crust has been com- (1,400 miles thick) is hot and molten. The mantle pressed, pulled apart, glaciated, eroded, and subjected (1,800 miles thick) is a dense, hot, semi-solid layer to volcanism. This geologic activity formed the moun- of rock. Above the mantle is the relatively thin crust, tains, canyons, plateaus, and hydrothermal features three to 48 miles thick, forming the continents and that define the natural wonder that is Yellowstone. ocean floors. While these mountains and canyons may appear In the key principles of Plate Tectonics, Earth’s to change very little during our lifetime, they are still crust and upper mantle (lithosphere) is divided into highly dynamic and variable. Some of Earth’s most active volcanic, hydrothermal (water + heat), and Yellowstone’s Geologic Signifcance earthquake systems make this national park a price- less treasure. In fact, Yellowstone was established as Yellowstone continues today as a natural geologic the world’s first national park primarily because of laboratory of active Earth processes. its extraordinary geysers, hot springs, mudpots and • One of the most geologically dynamic areas on Earth due to a shallow source of magma and resulting steam vents, as well as other wonders such as the volcanic activity. -
Geology of Pre-Tertiary Rocks in the Northern Part of Yellowstone National Park, Wyon1ing by EDWARD T
GEOLOGY OF PRE- TERTIARY ROCKS IN THE NORTHERN PART OF YELLOWSTONE NATIONAL PARK, m WYOMING "* ,~ - DivMOri Coforado Distril'l r ih•." n' Geology of Pre-Tertiary Rocks in the Northern Part of Yellowstone National Park, Wyon1ing By EDWARD T. RUPPEL With a section on Tertiary laccoliths, sills, and stocks in and near the Gallatin Range, Yellowstone National Park GEOLOGY OF YELLOWSTONE NATIONAL PARK GEOLOGICAL SURVEY PROFESSIONAL PAPER 729-A UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1972 UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary GEOLOGICAL SURVEY V. E. McKelvey, Director Library of Congress catalog-card No. 72-600268 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 Stock Number 2401-00242 Yellowstone National Park, the oldest of the areas set aside as part of the national park sys tem, lies amidst the Rocky Mountains in north western Wyoming and adjacent parts of Montana and Idaho. Embracing large, diverse, and complex geologic features, the park is in an area that is critical to the interpretation of many significant regional geologic problems. In order to provide basic data bearing on these problems, the U.S. Geological Survey in 1965 initiated a broad pro gram of comprehensive geologic and geophysical investigations within the park. This program was carried out with the cooperation of the National Park Service, and was also aided by the National Aeronautics and Space Administration, which supported the gathering of geologic information needed in testing and in interpreting results from various remote sensing devices. This professional paper chapter is one of a series of technical geo logic reports resulting from these investigations. -
Sheet-Like Emplacement of Satellite Laccoliths, Sills, and Bysmaliths Of
Sheet-like emplacement of satellite laccoliths, sills, and bysmaliths of the Henry Mountains, Southern Utah Michel de Saint Blanquat, Sven Morgan, Eric Horsman, Basil Tikoff, Guillaume Habert To cite this version: Michel de Saint Blanquat, Sven Morgan, Eric Horsman, Basil Tikoff, Guillaume Habert. Sheet-like emplacement of satellite laccoliths, sills, and bysmaliths of the Henry Mountains, Southern Utah. Geological Society of America Field Guide , Geological Society of America, 2005, 10.1130/2005.fl. hal-03025592 HAL Id: hal-03025592 https://hal.archives-ouvertes.fr/hal-03025592 Submitted on 26 Nov 2020 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. fl d006-14 page 1 of 28 Geological Society of America Field Guide 6 2005 Sheet-like emplacement of satellite laccoliths, sills, and bysmaliths of the Henry Mountains, Southern Utah Sven Morgan Department of Geology, Central Michigan University, Mt. Pleasant, Michigan 48858, USA Eric Horsman Basil Tikoff Department of Geology and Geophysics, University of Wisconsin, Madison, Wisconsin 53706, USA Michel de Saint-Blanquat Guillaume Habert LMTG-UMR5563/Observatoire Midi-Pyrénées, CNRS/Université Paul-Sabatier, 14 av. Edouard-Belin, 31400 Toulouse, France ABSTRACT Small intrusions (<3 km2) on the margins of the Henry Mountains intrusive com- plex of southern Utah are exceptionally well exposed in three dimensions and have a variety of shapes. -
Interpreting the Timberline: an Aid to Help Park Naturalists to Acquaint Visitors with the Subalpine-Alpine Ecotone of Western North America
University of Montana ScholarWorks at University of Montana Graduate Student Theses, Dissertations, & Professional Papers Graduate School 1966 Interpreting the timberline: An aid to help park naturalists to acquaint visitors with the subalpine-alpine ecotone of western North America Stephen Arno The University of Montana Follow this and additional works at: https://scholarworks.umt.edu/etd Let us know how access to this document benefits ou.y Recommended Citation Arno, Stephen, "Interpreting the timberline: An aid to help park naturalists to acquaint visitors with the subalpine-alpine ecotone of western North America" (1966). Graduate Student Theses, Dissertations, & Professional Papers. 6617. https://scholarworks.umt.edu/etd/6617 This Thesis is brought to you for free and open access by the Graduate School at ScholarWorks at University of Montana. It has been accepted for inclusion in Graduate Student Theses, Dissertations, & Professional Papers by an authorized administrator of ScholarWorks at University of Montana. For more information, please contact [email protected]. INTEKFRETING THE TIMBERLINE: An Aid to Help Park Naturalists to Acquaint Visitors with the Subalpine-Alpine Ecotone of Western North America By Stephen F. Arno B. S. in Forest Management, Washington State University, 196$ Presented in partial fulfillment of the requirements for the degree of Master of Forestry UNIVERSITY OF MONTANA 1966 Approved by: Chairman, Board of Examiners bean. Graduate School Date Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. UMI Number: EP37418 All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent upon the quality of the copy submitted. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted. -
Saving Genomes: the American Bison Model
Bison Conservation Genetics and Disease James Derr Department of Veterinary Pathobiology and the Graduate Faculty of Genetics Texas AgriLIFE – Research Texas A&M System The Bison Genetics Program at Texas A&M University Ph.D students: the Brains and the Brawn Todd J. Ward, Ph.D. “An Evaluation of the Outcome of Interspecific Hybridization Events Coincident with Dramatic Demographic Decline in North American Bison.” Graduated in May of 2000 and he is employed at the USDA National Center for Agriculture Utilization Research in Peoria, IL. Robert Schnabel, Ph.D “Developing DNA-Based Technologies in North American Bison: Parentage Testing, Linkage Mapping and QTL Scans.” He worked for 18 months for the USDA in Beltsville, MD as a research scientist and is now a Research Assistant Professor in the Department of Animal Sciences at the University of Missouri. Natalie Halbert, Ph.D. “The Utilization of Genetic Markers to Resolve Modern Management Issues in Historic Bison Populations: Implications for Species Conservation.” She is currently employed as a Research Assistant Professor in the Department of Veterinary Pathobiology at Texas A&M University. Christopher Seabury, Ph.D “Genetic Evaluation Of The Ovine And Bovine Prion Protein Genes (PRNP)”. He is employed as a Postdoctoral Research Associate in the Department of Veterinary at Texas A&M University. From a Species Conservation Point of View, Bison are Ultimate Survivors They have survived: – Multiple historic climatic periods with extreme temperature, moisture and ecological changes. – Imported parasitic, bacterial and viral diseases from Europe and Africa. – Widespread habitat destruction and population fragmentation. – One of the most dramatic population crashes and one of the most documented population recoveries of any wildlife species.