Detrital Zircon U-Pb Provenance of the Colorado River: a 5 M.Y
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Tertiary Stratigraphy of the Navajo Country Charles A
New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/9 Tertiary stratigraphy of the Navajo country Charles A. Repenning, J. F. Lance, and J. H. Irwin, 1958, pp. 123-129 in: Black Mesa Basin (Northeastern Arizona), Anderson, R. Y.; Harshbarger, J. W.; [eds.], New Mexico Geological Society 9th Annual Fall Field Conference Guidebook, 205 p. This is one of many related papers that were included in the 1958 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. Road logs, mini-papers, maps, stratigraphic charts, and other selected content are available only in the printed guidebooks. Copyright Information Publications of the New Mexico Geological Society, printed and electronic, are protected by the copyright laws of the United States. -
Hydrothermal Uranium Deposits Containing Molybdenum and Fluorite in the Marysvale Volcanic Field, West-Central Utah
Mineralium Deposita (199K) 33 : 4774'14 ( . srl'lllt!~r-V~rlag 199X ARTICLE C. G. Cunningham' J. D. Rasmussen' T. A. Stcycn R. O. Rye' P. D. Rowley S. B. Romberger' J. Selverstone Hydrothermal uranium deposits containing molybdenum and fluorite in the Marysvale volcanic field, west-central Utah Received: 23 June 1997 I Accepted: 15 October 1997 Abstract Uranium deposits containing molybdenum \9-1 ~ Ma in a I km2 area. above a cupola of a com and fluorite occur in the Central Mining Area. near posite, recurrent. magma chamber at least 24 x 5 km Marysvale, Utah. and formed in an epithermal vein across that fed a sequence of 21- to 14-Ma hypabyssal system that is part of a volcanic/hypabyssal complex. granitic stocks. rhyolite lava flows. ash-flow tuffs. and They represent a known. but uncommon. type of de volcanic domes. Formation of the Central Mining Area posit; relative to other commonly described volcanic began when the intrusion of a rhyolite stock. and re related uranium deposits. they are young. well-exposed lated molybdenite-bearing, uranium-rich. glassy rhyolite and well-documented. Hydrothermal uranium-bearing dikes, lifted the fractured roof above the stock. A quartz and fluorite veins are exposed over a 300 m breccia pipe formed and relieved magmatic pressures. vertical range in the mines. Molybdenum. as jordisite and as blocks of the fractured roof began to settle back (amorphous MoS2), together with fluorite and pyrite, in place, flat-lying, concave-downward. "pull-apart" increase with depth. and uranium decreases with depth. fractures were formed. Uranium-bearing, quartz and The veins cut 23-Ma quartz monzonite, 20-Ma granite. -
Late Cretaceous Stratigraphy of Black Mesa, Navajo and Hopi Indian Reservations, Arizona H
New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/9 Late Cretaceous stratigraphy of Black Mesa, Navajo and Hopi Indian Reservations, Arizona H. G. Page and C. A. Repenning, 1958, pp. 115-122 in: Black Mesa Basin (Northeastern Arizona), Anderson, R. Y.; Harshbarger, J. W.; [eds.], New Mexico Geological Society 9th Annual Fall Field Conference Guidebook, 205 p. This is one of many related papers that were included in the 1958 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. Road logs, mini-papers, maps, stratigraphic charts, and other selected content are available only in the printed guidebooks. Copyright Information Publications of the New Mexico Geological Society, printed and electronic, are protected by the copyright laws of the United States. -
Interim Geologic Map of the Southwestern Quarter of the Beaver 30' X 60' Quadrangle Utah Department of Natural Resources
Plate 1 UTAH GEOLOGICAL SURVEY Utah Geological Survey Open-File Report 686DM a division of Interim Geologic Map of the Southwestern Quarter of the Beaver 30' x 60' Quadrangle Utah Department of Natural Resources 113°00'00" 112°52'30" 112°45'00" 112°37'30" 112°30'00" b E E E E E ! ! E ! E ! E E ! ! E E ! ! ! ! F ! E ! 38°15'00" ! ! 38°15'00" ! ! ! ! ! ! ! ! ! ! ! ! ! ! Tm (Ticl) QTs Qms *c ! Qal1 1 Ppk ! Qat ! Tm (Jn) E QTs Qal1 ! Qaf1 Qaf3 Tm (Tdv) Qat1 ! E ! E Qal1 Tm (Tlk) ! Pt M Tm (Tdv) ! Qaf ! E E 4 ! Qaf2 ! Qat1 E Qms A ! ! E ! E ! Qal1 Tm ! ! R ! Qal1 ! ! Tm ! E ! ! Qat1 ! Qaf1 31 K ! ! ! ! ! ! ^m ! ! A ! Pp ! 1 ! ! Qat ! (Tda) G ! ! ! ! ! (Tdv) ! E ! E ! E ! U ! ! ! E 1 E ! ! Qat ! ! ! N ! ! Tm (Tdv) ! ! ! ! E ! ! ! ! T ! ! QTs ! ! Qat2 2 ! Qaf ! ! Tm ! E E ! ! Qaf2 Tm (Tdv) ! ! ! Qaf1 Qat1 ! ! ! Tm (Tlk) ! E E ! ! E Tm (Ticl) ! ! Qat1 ! ! E ! ! ! ! ! ! (Tda) b ! Qat1 ! E ! ! Qaf3 ! ! ! Qaf1 ! ! E ! 7 ! E ! E ! ! ! ! Qaf3 Pt E 1 ! ! Qaf ! ! Tm (Tin) Tb Qat2 ! ! ! ! ^cm ! ! E E 1 ! ! ! Qaf ! Qaf2 Qaf3 ! ! ! E Qaf3 ! E ! Tm (Tlk) ! ! ! ! ! ! ! ! Ppk E ! ! E ! ! ! ! ! ! ! E 3 ! Qaf E Qaf3 ! ! 1 ! E Qaf ! ! E ! ! ! ! ! ! E ! ! ! ! Qaf1 ! ! ! ! ! ! ! ! Tm (Tlb) ! ! ! ! ! E ! Tm (Tdb) ! ! ! ! E Tm ! ! ! E Qaf2 ! E ! ! Tm (Tda) E ! ! ! ! 2 ! ! Qaf Pq ! E ! ! ! E E ! ! E ! ! ! ! ! ! ! ! Tm (Tdv) E Qaf3 ! ! ! (Tin) ! Qaf2 ! ! ! E ! E ! Qaf2 E ! ! ! ! ! ! Qaf2 ! Tm (Tdv) ! ! ! ! ! E ! ! ! Tm E ! ! Qat1 ! ! Tm (Tdv) ! Qaf1 ! ! E ! ! ! ! E ! E ! Qal ! 2 ! ! ! E E! ! Tm (Tda) ! ! ! ! ! Tm (Tdv) ! ! ! ! ! ! E E E ! ! E ! ! ! ! Tm (Tdv) ! ! -
Memorial to John J. Anderson 1930–2017 PETER D
Memorial to John J. Anderson 1930–2017 PETER D. ROWLEY Geologic Mapping Inc., New Harmony, Utah 84757, USA HARRY F. FILKORN Pierce College, Woodland Hills, California 91371, USA PETER L. LASSEN Architect, Los Angeles, California 90012, USA JOHN C. SPURNEY Independent Geological Consultant, Kent, Ohio 44240, USA John J. (Jerome) Anderson died on 30 October 2017, at his home in Seattle, Washington, from heart failure. He is survived by his wife, Linda Jones Anderson, his daughters, Janet Eulalia Anderson and Kathryn Anderson Wellen, and his grandchil- dren, Mary Hadley Simmons, Anneke Roos Wellen, and Lydia Jasmijn Wellen. John was predeceased by his older brother, Poul Anderson, a prolific author of science-fiction books. Linda was the love of John’s life, and she and their two daughters were the source of a happy marriage and family, of whom he never ceased boasting. John met Linda Jones during his first season (1963) of field work (mapping) on his Ph.D. dissertation, when in a major stroke of luck he needed a bar of soap and happened into Bulloch’s Drug Store in Cedar City, Utah, where Linda Jones, then a coed at the University of Utah, had a summer job. They married on 25 July 1964. John was born in Port Arthur, Texas, on 10 October 1930, to Astrid and Anthon William (Will) Anderson. Astrid Hertz had emigrated from Denmark, whereas Will was born in Pennsylvania but educated in Denmark; they were married in Port Arthur. Will died in an auto accident in Port Arthur, and widow Astrid W. Anderson and her two children moved to Northfield, Minnesota, to be near her brother Jakob Hertz, who lived there. -
Late Oligocene–Early Miocene Grand Canyon: a Canadian Connection?
Late Oligocene–early Miocene Grand Canyon: A Canadian connection? James W. Sears, Dept. of Geosciences, University of Montana, (Karlstrom et al., 2012); the river did not reach the Gulf of California Missoula, Montana 59812, USA, [email protected] until 5.3 Ma (Dorsey et al., 2005). Several researchers have con- cluded that an early Miocene Colorado River most likely would ABSTRACT have flowed northwest from a proto–Grand Canyon, because geo- logic barriers blocked avenues to the south and east (Lucchitta et Remnants of fluvial sediments and their paleovalleys may map al., 2011; Cather et al., 2012; Dickinson, 2013). out a late Oligocene–early Miocene “super-river” from headwaters Here I propose that a late Oligocene–early Miocene Colorado in the southern Colorado Plateau, through a proto–Grand Canyon River could have turned north in the Lake Mead region to follow to the Labrador Sea, where delta deposits contain microfossils paleovalleys and rift systems through Nevada and Idaho to the that may have been derived from the southwestern United States. upper Missouri River in Montana. The upper Missouri joined the The delta may explain the fate of sediment that was denuded South Saskatchewan River of Canada before Pleistocene continen- from the southern Colorado Plateau during late Oligocene–early tal ice-sheets deflected it to the Mississippi (Howard, 1958). The Miocene time. South Saskatchewan was a branch of the pre-ice age “Bell River” of I propose the following model: Canada (Fig. 1), which discharged into a massive delta in the 1. Uplift of the Rio Grande Rift cut the southern Colorado Saglek basin of the Labrador Sea (McMillan, 1973; Balkwill et al., Plateau out of the Great Plains at 26 Ma and tilted it to the 1990; Duk-Rodkin and Hughes, 1994). -
Mount Belknap and Red Hills Marysvale Volcanic Field
Mount Belknap and Red Hills Calderas and Associated Rocks, Marysvale Volcanic Field, West-Central Utah GEOLOGICAL SURVEY BULLETIN 1468 Mount Belknap and Red Hills Calderas and Associated Rocks, Marysvale Volcanic Field, West-Central Utah By C. G. CUNNINGHAM and T.A. STEVEN GEOLOGICAL SURVEY BULLETIN 1468 Description of the rocks, eruptive history, and inferred subvolcanic environment associated with the formation of the J1ount Belknap and Red Hills calderas UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1979 UNITED STATES DEPARTMENT OF THE INTERIOR CECIL D. ANDRUS, Secretary GEOLOGICAL SURVEY H. William Menard, Director Library of Congress Cataloging in Publication Data Cunningham, C. G. Mount Belknap and Red Hills calderas and associated rocks, Marysvale volcanic field, west-central Utah. (Geological Survey Bulletin 1468) Bibliography: p. Supt. of Docs. no.: I 19.3:1468 1. Calderas-Utah-Marysvale region. 2. Volcanic ash, tuff, etc.-Utah-Marysvale region. I. Steven, Thomas August, 191 7-joint author. II. Title. III. Series: United States Geological Survey Bulletin 1468 QE75.B9 No. 1468 ( QE461] 557.3'08s 78-21191 [551.2'1'0979246) For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 Stock No. 024-001-03175-2 CONTENTS Page Abstract_ 1 Introduction _________ _ 2 Acknowledgments_ 4 Geologic setting __________ _ 4 Mount Belknap Volcanics ____ _ 6 Outflow facies ___________________ _ 7 Lower heterogeneous member _ 7 Joe Lott 'iliff Member 9 Red Hills 'fuff Member 11 Crystal-rich tuff member -
Age and Origin of the White Mesa Alluvium, Northeastern Arizona: Geosphere, V
Research Paper THEMED ISSUE: CRevolution 2: Origin and Evolution of the Colorado River System II GEOSPHERE Reevaluation of the Crooked Ridge River—Early Pleistocene (ca. 2 Ma) age and origin of the White Mesa alluvium, northeastern GEOSPHERE; v. 12, no. 3 Arizona doi:10.1130/GES01124.1 Richard Hereford1, L. Sue Beard1, William R. Dickinson2, Karl E. Karlstrom3, Matthew T. Heizler4, Laura J. Crossey3, Lee Amoroso1, P. Kyle House1, 14 figures; 3 tables; 3 supplemental files and Mark Pecha5 1U.S. Geological Survey, 2255 N. Gemini Drive, Flagstaff, Arizona 86001, USA CORRESPONDENCE: rhereford@ usgs .gov 2Department of Geosciences, University of Arizona, 1040 E. 4th Street, Tucson, Arizona 85721, USA 3Department of Earth and Planetary Sciences, University of New Mexico, 221 Yale Boulevard NE, Albuquerque, New Mexico 87106, USA 4New Mexico Geochronology Research Laboratory, New Mexico Bureau of Geology & Mineral Resources–New Mexico Institute of Mining & Technology, 801 Leroy Place, Socorro, New Mexico CITATION: Hereford, R. Beard, L.S., Dickinson, 87801, USA W.R., Karlstrom, K.E., Heizler, M.T., Crossey, L.J., 5Arizona Laserchron Center, Department of Geosciences, University of Arizona, 1040 E. 4th Street, Tucson, Arizona 85721, USA Amoroso, L., House, P.K., and Pecha, M., 2016, Re- evaluation of the Crooked Ridge River—Early Pleis- tocene (ca. 2 Ma) age and origin of the White Mesa alluvium, northeastern Arizona: Geosphere, v. 12, no. 3, p. 768–789, doi:10.1130/GES01124.1. ABSTRACT older than inset gravels that are interbedded with 1.2–0.8 Ma Bishop–Glass Mountain tuff. The new ca. 2 Ma age for the White Mesa alluvium refutes the Received 27 August 2014 Essential features of the previously named and described Miocene Crooked hypothesis of a large regional Miocene(?) Crooked Ridge paleoriver that pre- Revision received 12 November 2015 Ridge River in northeastern Arizona (USA) are reexamined using new geologic dated carving of the Grand Canyon. -
Revised Stratigraphy of the Lower Chinle Formation (Upper Triassic) of Petrified Forest National Park, Arizona
Parker, W. G., Ash, S. R., and Irmis, R. B., eds., 2006. A Century of Research at Petrified Forest National Park. 17 Museum of Northern Arizona Bulletin No. 62. REVISED STRATIGRAPHY OF THE LOWER CHINLE FORMATION (UPPER TRIASSIC) OF PETRIFIED FOREST NATIONAL PARK, ARIZONA DANIEL T. WOODY* Department of Geology, Northern Arizona University, Flagstaff, AZ 86011-4099 * current address: Department of Geological Sciences, University of Colorado at Boulder, Boulder CO 80309 <[email protected]> ABSTRACT— The Sonsela Sandstone bed in Petrified Forest National Park is here revised with specific lithologic criteria. It is raised in rank to Member status because of distinct lithologies that differ from other members of the Chinle Formation and regional distribution. Informal stratigraphic nomenclature of a tripartite subdivision of the Sonsela Member is proposed that closely mimics past accepted nomenclature to preserve utility of terms and usage. The lowermost subdivision is the Rainbow Forest beds, which comprise a sequence of closely spaced, laterally continuous, multistoried sandstone and conglomerate lenses and minor mudstone lenses. The Jim Camp Wash beds overlie the Rainbow Forest beds with a gradational and locally intertonguing contact. The Jim Camp Wash beds are recognized by their roughly equal percentages of sandstone and mudstone, variable mudstone features, and abundance of small (<3 m) and large (>3 m) ribbon and thin (<2 m) sheet sandstone bodies. The Jim Camp Wash beds grade into the overlying Flattops One bed composed of multistoried sandstone and conglomerate lenses forming a broad, sheet-like body with prevalent internal scours. The term “lower” Petrified Forest Member is abandoned in the vicinity of PEFO in favor of the term Blue Mesa Member to reflect the distinct lithologies found below the Sonsela Member in a north-south outcrop belt from westernmost New Mexico and northeastern Arizona to just north of the Arizona-Utah border. -
STRATIGRAPHY of the PETRIFIED FOREST NATIONAL PARK, ARIZONA by Iv Jack E I' Roadifer a Dissertation Submitted to the Faculty Of
Stratigraphy of the Petrified Forest National Park, Arizona Item Type text; Dissertation-Reproduction (electronic) Authors Roadifer, Jack Ellsworth, 1928- 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 27/09/2021 14:44:47 Link to Item http://hdl.handle.net/10150/565136 STRATIGRAPHY OF THE PETRIFIED FOREST NATIONAL PARK, ARIZONA by iV Jack E i' Roadifer A Dissertation Submitted to the Faculty of the DEPARTMENT OF GEOLOGY In Partial Fulfillment of the Requirements For the Degree of DOCTOR OF PHILOSOPHY In the Graduate College THE UNIVERSITY OF ARIZONA 19 6 6 THE UNIVERSITY OF ARIZONA GRADUATE COLLEGE I hereby recommend that this dissertation prepared under my direction by _________ Jack E. Roadifer__________________________ entitled STRATIGRAPHY OF THE PETRIFIED FOREST NATIONAL PARK, ARIZONA______________________________________ be accepted as fulfilling the dissertation requirement of the degree of ______ Doctor of Philosophy____________________________ / c r / ; b ^ After inspection of the dissertation, the following members of the Final Examination Committee concur in its approval and recommend its acceptance:* *This approval and acceptance is contingent on the candidate's adequate performance and defense of this dissertation at the final oral examination. The inclusion of this sheet bound into the library copy of the dissertation is evidence of satisfactory performance at the final examination. STATEMENT BY AUTHOR This dissertation has been submitted in partial fulfillment 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. -
Bedrock and Surficial Geologic Map of the Satan Butte and Greasewood 7.5' Quadrangles, Navajo and Apache
Prepared in cooperation with the Navajo Nation Bedrock and Surficial Geologic Map of the Satan Butte and Greasewood 7.5' Quadrangles, Navajo and Apache Counties, Northern Arizona By Lee Amoroso, Susan S. Priest, and Margaret Hiza-Redsteer Pamphlet to accompany Open-File Report 2013–1007 2013 U.S. Department of the Interior U.S. Geological Survey Contents Contents ........................................................................................................................................................................................... ii Figures ............................................................................................................................................................................................. ii Introduction ......................................................................................................................................................................................1 Map Scale ........................................................................................................................................................................................1 Geography .......................................................................................................................................................................................1 Previous Studies ..............................................................................................................................................................................2 Geologic Setting ...............................................................................................................................................................................3 -
Petrified Forest U.S
National Park Service Petrified Forest U.S. Department of the Interior Petrified Forest National Park Petrified Forest, Arizona Geology and the Painted Desert Part of the Painted Desert, Petrified Forest National Park features a strangely beautiful landscape. Erosion has sculpted and shaped intriguing landforms, revealing a treasure trove of fossils within multi-colored layers. The rocks reveal an enthralling chronicle of time that is unfolding and ever- changing. What can the rocks tell us? Think of the colorful layers of the Petrified Forest as pages in a massive book. As the pages are turned, we discover that the words are a language we don’t completely understand. The pictures help, but we must put together the story of this ancient book with fragmented clues. The first chapter of the park’s geological text is the Chinle Formation. Chinle Formation The colorful badland hills, flat-topped mesas, Member north of Kachina Point, is and sculptured buttes of the Painted Desert are approximately 213 million years old, based on primarily made up of the Chinle Formation. The radiometric dating. sedimentary rock mainly consists of fluvial (river related) deposits. Within Petrified Forest The Owl Rock Member consists of pinkish - National Park, the layers of the Chinle orange mudstones mixed with hard, thin layers Formation include the Blue Mesa Member, the of limestone. This member is exposed on Sonsela Member, the Petrified Forest Member, Chinde Mesa at the northernmost border of the and the Owl Rock Member. park. The Owl Rock Member is approximately 205 million years old, based on its stratigraphic The Blue Mesa Member consists of thick position and vertebrate fossil record.