DOCSLIB.ORG

Anderson-Hamilton-P357-448

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Anderson-Hamilton-P357-448 UPPER-PLATE STRUCTURE AND SEDIllliNTATION OF THE BAKER PEAKS AREA, Yill1A COUNTY, ARIZONA Cynthia L. Pridmore and Christy Craig San Diego State University San Diego, California 92182 ABSTR,<\CT The Baker Peaks of south,,,estern Arizona are gation because of the large section of Tertiary composed of reddish arkosic sandstone and granitic­ strata exposed there. Such an accumulation of sedi­ boulder conglomerate units deposited in an alluvial­ mentary rock should provide at least a partial record fan environment with a provenance located to the of the depositional and deformational history for south. Deposition of these units was coeval with that time. Therefore, the purpose of this investiga­ rotation along northeast-dipping growth faults inter­ tion was to describe the stratigraphy and structure preted to merge into the low-angle detachment fault and their interrelationship, and to propose a tenta­ observed to the south of the range. The Tertiary tive depositional model. The development of this strata (upper plate) lying above the detachment fault model was intimately associated with the structural appear to have been affected by northeast-southwest character of the range because the deposition and extension with transport of the upper plate to the deformation appear to have been coeval. northeast. A regional reconstruction provides a model depicting the interrelationship between The presence of regional Tertiary detachment Tertiary sedimentation and structure for this area. faulting described to the north, northwest, and east Alluvial-fan formation appears to have been initiated of the Baker Peaks (Frost and Mueller, pers. commun., along northeast-dipping growth faults in close asso­ 1981) further suggests that this area should provide ciation with the dmmwarping of the Gila Trough to a record of this regional extensional event. The produce the main catchment basin. ideas put forth in this paper are not a final summa­ tion but are meant to provide a framework for further INTRODUCTION investigation and to provoke further inquiry into the interrelationship of extensional tectonics and basin The Baker Peaks are located within the Hohawk development. Valley of southwestern Arizona, approximately 57 km. east of Yuma. The main access to the range is dirt Previous Hork roads, Avenues 36 and 40, off Interstate Highway 8 (Fig. 2). The Baker Peaks lie within the boundaries Host of the earlier work in this area has been of Luke Air Force Range, an active gunnery range, and included in mineral deposit reports. Hilson (1933) thus entrance into the region is restricted by mili­ provided a good general description of the sandstone tary jurisdiction. and conglomerate from the Baker Peaks. He included descriptions from earlier work, notably work by Bryan The Baker Peaks reach a maximum elevation of done in 1925. Hilson commented briefly on the orien­ 432 meters and encompass approximately 13 sq. km. tation of the bedded units, suggesting that the From Interstate 8 the Baker Peaks can be seen as a changes in strike and dip that he observed indicated set of angular, pyramid-shaped peaks characterized by that the units had been considerably affected by northwest-trending strike ridges with southwest­ faulting. facing dip slopes (Fig. 3). The range is surrounded by a rock-cut pediment surface. To the immediate Keith (1978) also included a description of the east and west of the range, the pediment is overlain Baker Peaks in his report on the mining districts of by wind-blown sands and Recent alluvium. To the Yuma County; however, most of this description cites south, low-lying hills cross the plain to the contact much of the earlier work by \,ilson and Bryan. Eberly between Tertiary conglomerate and Precambrian to and Stanley (1978) divided the Cenozoic stratigraphy Mesozoic crystalline rocks of the Copper 110untains, of southwestern Arizona into two units; they con­ mapped by \,ilson (1933). To the north, the pediment sidered the strata of the Baker Peaks region to extends for at least 1 km; hm"ever due to the proxim­ belong to the older unit which predates late Miocene ity of similar Tertiary units at Antelope Hill, which time. Host recently Lynch and Lundin (1980) provided lies 5 km north of Baker Peaks, the pediment probably a fieldguide description at Baker Tanks, 2 km to the extends much further. south of the Baker Peaks, in which they included a description of the units and a brief discussion on The Baker Peaks are composed of stratified their provenance; however, no structural observations arkosic sandstone and conglomerate that appear to be for this area were noted. derived from a granitic source terrane. The sand­ stone is predominantly coarse grained with cross­ STRATIGRAPHY OF THE BAKER PEAKS bedding and thin-bedded shales occurring locally. The conglomerate is composed of well-rounded cobbles General Setting and boulders. Reddish, arkosic sandstone and granitic boulder Purpose conglomerate units make up the succession of sedi­ mentary rocks in the Baker Peaks range. The dip In light of the growing interest in mid-Tertiary slopes of these tilted beds define the profile of the tectonics in southwestern Arizona, the Baker Peaks Baker Peaks, and are quite prominent when viewed from ,,,ere considered to be a good target area for investi- a distance (Fig. 3) 357 QUATERNARY a TERTIARY I<Q-T)fl FANGLOMERATE ;,J~s;'.;..... TERTIARY SANDSTONE [illj,- ,.-' a CONGLOMERATE ~!iltKmJ TERTIARY VOLCANICS ~ MESOZOIC GFtANITE MESOZOIC a PRE- ~ CAMBRIAN SCHIST JI4 .,. tv s AND GNEISS o 3 6 9 112 15 mi. w (]I ANTELOPE HILL CD G WELLTON III Il:l ~HILLS o \ fJ' Figure 2. Regional geologic map of southern Yuma County, as modified from Wilson (1960). Figure 3. View to south of Arltelope Hill (foreground), Baker Peaks and Copper Mountains (skyline). A dark coating of desert varnish covers a large units in contrast to the darker sandstone. The sup­ percentage of the sandstone effectively obscuring porting matrix varies from a moderately sorted most of the primary sedimentary structures. The only arkosic, silty, coarse-grained sandstone to an outstanding unit easily seen under these conditions unsorted, lithic, micaceous, silty, pebbly, coarse­ is a tabular-shaped, thick, 1.5 to 3 m, granitic­ grained arkose breccia sandstone, which is inversely boulder conglomerate (Fig. 4). 1fuile most of the graded at the base. sloping beds are varnish covered, clean exposures are located along steep canyon walls. Clean exposures A generalized lithologic column is illustrated are also found in the stream beds south of Baker in Figure 6. This figure depicts the lack of mega­ Peaks at Baker Tanks. cycles, and shows a small-scale, cyclic, fining­ upward trend. However, in several exposures these Lithologic Description cycles did not appear to dominate the sedimentary sequence. Instead, the sandstone contained a random The sedimentary succession of Baker Peaks is arrangement of alternating massive, coarse-grained largely composed of reddish to purple-brown and sandstone and crudely bedded, coarse-grained sand­ bro\'ll-gray, planar-bedded units often appearing as stone. massive, poorly sorted, pebbly, coarse-grained sand­ stone. Many times these units alternate with crudely The total thickness for these sandstone and con­ laminated, moderately sorted, pebbly, medium-grained glomerate units in the Baker Peaks is not seen due to sandstone. The base of these units is sometimes faul ting. lIm"ever, canyon exposures display an graded or inversely graded. Locally, thin beds of a uninterrupted thickness of at least 90 m. very fissile, dark-red, silty claystone form promi­ nent blocky shelves in sharp contact with the over­ Faulting interrupts the sedimentary rock lying sandstone. sequences throughout the Baker Peaks. Therefore, any sedimentary megacycles that could be used to recon­ A distinctive repetitive unit within thesarid­ struct the tectonic history of this ancient fan sys­ stone sequence is composed of a light-gray, moder­ tem, are someHhat obscured. ately sorted, granitic-boulder conglomerate. The repetitive nature of these units is sho\'ll in Figure The sedimentary structures include: mudcracks 5, which illustrates the light-gray conglomerate (Fig. 7), small- and large-scale channel cuts (Fig. 8 359 Figure 4. A tabular-shaped, approximately 3 1/2 m thick, granitic, boulder conglomerate exposed along a canyon wall. These units show conspicuous small caverns. These units do not seem to be coated by desert varnish as the sand­ stone above is. For scale notice person in the right-hand side of photo. Figure 5. A distant view, looking northeast, of light-gray boulder con­ glomerate units alternating with the sandstone. The boulder conglomerate beds are dipping up along the ridge. 360 Principal Sandstone Units .6 to 3 meters thiclc: Tabular- to lens-shaped beds described as purple-brOl'1n, mas­ sive, pebbly, coarse- to medium-grained, poorly sorted, silty sandstone. meters 35- .3 to .6 meters thick: Thin, parallel-bedded reddish units composed of alternating pebbly, coarse-grained, well-sorted, coarse- to medium-grained sandstone dis­ playing normal to inverse grading. 1-1/2 to 2 meters thick: Thin-bedded, reddish to brown-gray, well sorted arkosic sandstone. 15 to 30 em thick: Parallel bedded, brown-gray, coarse- to medium-grained, arkosic sandstone containing lens-shaped units normally graded with pebbles and cob­ bles. Imbrication is absent. 10 to 30 em thick: Parallel laminated, small-scale cross bedding "ith reddish units composed of silty, medium- to fine-grained sandstone. Pervasive throughout the sandstone are occasional boulder- and/or cobble-sized clasts (15 em to 2 m in dia.). Conglomerate Unit 1-1/2 to 3 meters thic!,: Tabular, light-gray units described as a moderately well­ sorted, subrounded- to well-rounded granitic conglomerate supported by silty, arkosic, lithic sandstone. Clast sizes range from 15 em to 2 m, with an average diameter of about 60 em. Clasts are randomly oriented with reverse grading above a non-erosive base.
Load more

Recommended publications
  • Arizona's Wildlife Linkages Assessment
    ARIZONAARIZONA’’SS WILDLIFEWILDLIFE LINKAGESLINKAGES ASSESSMENTASSESSMENT Workgroup Prepared by: The Arizona Wildlife Linkages ARIZONA’S WILDLIFE LINKAGES ASSESSMENT 2006 ARIZONA’S WILDLIFE LINKAGES ASSESSMENT Arizona’s Wildlife Linkages Assessment Prepared by: The Arizona Wildlife Linkages Workgroup Siobhan E. Nordhaugen, Arizona Department of Transportation, Natural Resources Management Group Evelyn Erlandsen, Arizona Game and Fish Department, Habitat Branch Paul Beier, Northern Arizona University, School of Forestry Bruce D. Eilerts, Arizona Department of Transportation, Natural Resources Management Group Ray Schweinsburg, Arizona Game and Fish Department, Research Branch Terry Brennan, USDA Forest Service, Tonto National Forest Ted Cordery, Bureau of Land Management Norris Dodd, Arizona Game and Fish Department, Research Branch Melissa Maiefski, Arizona Department of Transportation, Environmental Planning Group Janice Przybyl, The Sky Island Alliance Steve Thomas, Federal Highway Administration Kim Vacariu, The Wildlands Project Stuart Wells, US Fish and Wildlife Service 2006 ARIZONA’S WILDLIFE LINKAGES ASSESSMENT First Printing Date: December, 2006 Copyright © 2006 The Arizona Wildlife Linkages Workgroup Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written consent from the copyright holder provided the source is fully acknowledged. Reproduction of this publication for resale or other commercial purposes is prohibited without prior written consent of the copyright holder. Additional copies may be obtained by submitting a request to: The Arizona Wildlife Linkages Workgroup E-mail: [email protected] 2006 ARIZONA’S WILDLIFE LINKAGES ASSESSMENT The Arizona Wildlife Linkages Workgroup Mission Statement “To identify and promote wildlife habitat connectivity using a collaborative, science based effort to provide safe passage for people and wildlife” 2006 ARIZONA’S WILDLIFE LINKAGES ASSESSMENT Primary Contacts: Bruce D.
    [Show full text]
  • (LHFO) Proposed Resource Management Plan
    United States Department of the Interior U.S. Fish and Wildlife Service 2321 West Royal Palm Road, Suite 103 Phoenix, Arizona 85021-4951 Telephone: (602) 242-0210 FAX: (602) 242-2513 In Reply Refer To: AESO/SE 02-21-05-F-0784 June 15, 2006 Memorandum To: Field Manager, Lake Havasu Field Office, Bureau of Land Management, Lake Havasu City, Arizona From: Field Supervisor Subject: Biological Opinion on the Effects of the Lake Havasu Field Office (LHFO) Proposed Resource Management Plan Thank you for your request for formal section 7 consultation on the final Lake Havasu Field Office District Proposed Resource Management Plan (PRMP), pursuant to the Endangered Species Act of 1973 (16 U.S.C. 1531-1544), as amended (Act). Species addressed in this consultation include effects of your proposed action on the following species: • Endangered southwestern willow flycatcher (Empidonax traillii extimus) (SWWF) • Threatened bald eagle (Haliaeetus leucocephalus) (BAEA) • Endangered razorback sucker (Xyrauchen texanus) (RBS) and critical habitat. • Endangered bonytail chub (Gila elegans) (BTC) and critical habitat • Endangered Yuma clapper rail (Rallus longirostris yumanensis) (YCR) • Threatened desert tortoise – Mohave Desert Population (Gopherus agassizii) (MDT) You have also requested our concurrence with your determination that the proposed action may affect, but is not likely to adversely affect, the endangered California brown pelican (Pelicanus occidentalis californicus) and the candidate western yellow-billed cuckoo (Coccyzus americanus occidentalis). We concur with these determinations, which are addressed in Appendix A at the end of this memorandum. This biological opinion (BO) is based on information provided in the November 28, 2005, biological assessment (BA), the PRMP EIS, email correspondence, updated memos, telephone conversations, site investigations, meetings between the Bureau of Land Management (BLM) and us, and other sources of information (all this information is considered part of the proposed 2 action).
    [Show full text]
  • Ca-Lower-Colorado-River-Valley-Pkwy
    I • I I I ) I I A REPORT TO THE CONGRESS OF THE UNITED STATES ---1 I 'I I I I THE LOWER I COLORADO I RIVER I VALLEY • PARKWAY I I D- '°'le> F; 1-e. ·• NFS- ' f\CAc:.+... \ V"C. , ~ P,of>oseol I ~~~~=-'~c f~l~~c~~w I THE LOWER COLORADO I filVERVALLEYPARKWAY I I I A proposal for a National Parkway and Scenic Recreation Road System along the Lower Colorado River Valley in 'I California, Arizona, and Nevada. I NATIONAL PARK .i DENVER SEfiViC I ·-.-:. a.t ..1flkllb""ll.--';,.i. n II"~ r.· " •· \..' ;: · I ;:~::::.;.;:;.:J I I I U.S. DEPARTMENT OF THE INTERIOR National Park Service I in cooperation with Lower Colorado River Office Bureau of Land Management • PLE~\SE RtTUR?j TO: I February 1969 I , lJnited States Department of the Interior OFFICE OF THE SECRETARY I WASHINGTON, D.C. 20240 I I Dear Mr. President: We are pleased to transmit herewith. a report on the feasibility anc;l desirability of developing a nation~l p;;i.rkwa,y and sc;enic recreation I road system within. the Lower C9l9rado River· Vaiiey in Arizona, Califo~nia, and Nevada, from the Lake Mead National Recreation I Area and Davis Dam on the north to the International Boup.d:;i.ry ~ith Mexico on the south in: the vicinity of San Luis, Arizqna arid Mexic.o.· . ·. ' .. ·.' . ·. I This :i;eport is based on ci. study 11,'lade by the Lower Col<;>rado River Office ap.d the NatiQnal :Par~ Service pf this Depa.rtmep.t with engineerin.g assistance by the Buqlau of Public Roads of the Departmep.t of .
    [Show full text]
  • Preliminary Geologic Map of the Monkeys Head Quadrangle, Mohave and La Paz Counties, Arizona
    DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY Preliminary geologic map of the Monkeys Head quadrangle, Mohave and La Paz Counties, Arizona by David R. Sherrod1 Open-File Report 88-597 This map is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. Any use of trade names is for descriptive pur­ poses only, and does not imply endorsement by the U.S. Geological Survey. 'Menlo Park, Calif. Geologic Map of the Monkeys Head Quadrangle The mountains in the northern and central parts of the Monkeys Head quadrangle are northwest-trending, INTRODUCTION southwestwardly tilted blocks of Proterozoic metaplutonic rocks and Tertiary volcanic and sedimentary strata. The tilt is indicated by the steep to gentle southwest dip of Tertiary strata and underlying Tertiary-Proterozoic nonconformity. The Monkeys Head 7.5-minute quadrangle is The tilted rocks are buried in the southern pan of the located at the confluence of the Colorado and Bill Williams quadrangle by nearly flat-lying upper Miocene lava flows Rivers in westernmost Arizona. This area is in the Basin that fringe the Buckskin Mountains. The entire quadrangle and Range Province, which is characterized by mountain lies in the upper plate of a regional detachment fault system ranges and intervening alluviated valleys (fig. 1). The exposed in the Whipple, Buckskin, and Rawhide Moun­ Colorado Plateau lies 150 km to the east, separated from the tains (Davis and others, 1980; Dickey and others, 1980; Basin and Range in Arizona by the Transition Zone. Shackelford, 1980). 114 = NEVADA I ARIZONA 36' 35' MONKEYS HEAD QUAD km 34' CALIF.
    [Show full text]
  • K-Ar and Fission-Track Ages (Dates) of Volcanic Intrusive, Altered, and Metamorphic Rocks in the Mohave Mountains Area, West- Central Arizona J.K
    K-Ar and fission-track ages (dates) of volcanic intrusive, altered, and metamorphic rocks in the Mohave Mountains area, west- central Arizona J.K. Nakata, M.A. Pernokas, K.A. Howard, J.E. Nielson, and J.R. Shannon Isochron/West, Bulletin of Isotopic Geochronology, v. 57, pp. 21-32 Downloaded from: https://geoinfo.nmt.edu/publications/periodicals/isochronwest/home.cfml?Issue=57 Isochron/West was published at irregular intervals from 1971 to 1996. The journal was patterned after the journal Radiocarbon and covered isotopic age-dating (except carbon-14) on rocks and minerals from the Western Hemisphere. Initially, the geographic scope of papers was restricted to the western half of the United States, but was later expanded. The journal was sponsored and staffed by the New Mexico Bureau of Mines (now Geology) & Mineral Resources and the Nevada Bureau of Mines & Geology. All back-issue papers are available for free: https://geoinfo.nmt.edu/publications/periodicals/isochronwest This page is intentionally left blank to maintain order of facing pages. 21 K-Ar AND FISSION-TRACK AGES (DATES) OF VOLCANIC INTRUSIVE, ALTERED, AND METAMORPHIC ROCKS IN THE MOHAVE MOUNTAINS AREA, WEST-CENTRAL ARIZONA J. K. NAKATA M. A. PERNOKAS U,S. Geological Survey, Menio Park, CA 94025 K. A. HOWARD J. E. NIELSON U.S. Geological Survey, Denver, CO 80225 J. R. SHANNON Current address: Crown Resource Corp., Republic, WA 99166 114^30' The Mohave Mountains and adjacent ranges of west-central Arizona (fig. 1) occupy a key area for unraveling the evolution of Tertiary tectonics in the SSS3S333SSS8S3SS$S!sOUTLINE OF FIGURE 2.
    [Show full text]
  • Section VII Potential Linkage Zones SECTION VII POTENTIAL LINKAGE ZONES
    2006 ARIZONA’S WILDLIFE LINKAGES ASSESSMENT 41 Section VII Potential Linkage Zones SECTION VII POTENTIAL LINKAGE ZONES Linkage 1 Linkage 2 Beaver Dam Slope – Virgin Slope Beaver Dam – Virgin Mountains Mohave Desert Ecoregion Mohave Desert Ecoregion County: Mohave (Linkage 1: Identified Species continued) County: Mohave Kit Fox Vulpes macrotis ADOT Engineering District: Flagstaff and Kingman Mohave Desert Tortoise Gopherus agassizii ADOT Engineering District: Flagstaff ADOT Maintenance: Fredonia and Kingman Mountain Lion Felis concolor ADOT Maintenance: Fredonia ADOT Natural Resources Management Section: Flagstaff Mule Deer Odocoileus hemionus ADOT Natural Resources Management Section: Flagstaff Speckled Dace Rhinichthys osculus Spotted Bat Euderma maculatum AGFD: Region II AGFD: Region II Virgin Chub Gila seminuda Virgin Spinedace Lepidomeda mollispinis mollispinis BLM: Arizona Strip District Woundfin Plagopterus argentissimus BLM: Arizona Strip District Congressional District: 2 Threats: Congressional District: 2 Highway (I 15) Council of Government: Western Arizona Council of Governments Urbanization Council of Government: Western Arizona Council of Governments FHWA Engineering: A2 and A4 Hydrology: FHWA Engineering: A2 Big Bend Wash Legislative District: 3 Coon Creek Legislative District: 3 Virgin River Biotic Communities (Vegetation Types): Biotic Communities (Vegetation Types): Mohave Desertscrub 100% Mohave Desertscrub 100% Land Ownership: Land Ownership: Bureau of Land Management 59% Bureau of Land Management 93% Private 27% Private
    [Show full text]
  • Preliminary Geologic Map of the Eastern and Northern Parts of the Topock 7.5-Minute Quadrangle Arizona and California
    U. S. DEPARTMENT OF THE INTERIOR U. S. GEOLOGICAL SURVEY Preliminary Geologic Map of the Eastern and Northern Parts of the Topock 7.5-minute Quadrangle Arizona and California by Keith A. Howard1 , Barbara E. John2, and Jane E. Nielson1 Open-File Report 95-534 Geology mapped by J.E. Nielson (1981, 1982, 1990) assisted by V.L. Hansen (1981); K.A. Howard and B.E. John (1980, 1981, 1989, 1990). This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American stratigraphic code. Any use of trade, product, or firm names is for descriptive purpose only and does not imply endorsement by the U. S. Government. iMenlo Park, California 94025 2Department of Geology and Geophysics, University of Wyoming, Laramie, Wyoming 82071 1997 DESCRIPTION OF MAP UNITS SEDIMENTARY AND VOLCANIC ROCKS AND DEPOSITS Disturbed materials (Holocene) In northwest corner of map area. Manmade levees in Topock Marsh Qs Windblown sand (Holocene)-In northern third of map area. Loose, medium to coarse sand. Locally pebbly where mixed with lag of alluvium on terraces above Sacramento Wash Alluvial units-Sandy and gravelly deposits of local streams and fans. Subdivided into four units. From youngest to oldest, these units correspond to units mapped in the adjacent Mohave Mountains area to the east as Qs4, Qs3, Qs2, and QTsl (Howard and others, 1990; in press) Qy Youngest alluvium (Holocene) In modern washes and alluvial aprons. Angular to subangular, poorly to moderately sorted, unconsolidated sand and gravel. Composed of material derived from Proterozoic and Mesozoic rocks and Tertiary volcanic rocks.
    [Show full text]
  • Highlights of the Geologic Evolution of the Colorado River Extensional Corridor and Its River: a Field Guide Honoring the Life and Legacy of Warren Hamilton
    The Geological Society of America Field Guide 55 A river is born: Highlights of the geologic evolution of the Colorado River extensional corridor and its river: A field guide honoring the life and legacy of Warren Hamilton Keith A. Howard* U.S. Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Menlo Park, California 94025, USA P. Kyle House* U.S. Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Flagstaff, Arizona 86001, USA Barbara E. John* Department of Geology & Geophysics, University of Wyoming, Laramie, Wyoming 82071, USA Ryan S. Crow* U.S. Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Flagstaff, Arizona 86001, USA Philip A. Pearthree* Arizona Geological Survey, University of Arizona, Tucson, Arizona 85701, USA ABSTRACT The Colorado River extensional corridor, which stretched by a factor of 2 in the Miocene, left a series of lowland basins and intervening bedrock ranges that, at the dawn of the Pliocene, were flooded by Colorado River water newly diverted from the Colorado Plateau through Grand Canyon. This water and subsequent sediment gave birth, through a series of overflowing lakes, to an integrated Colorado River flowing to the newly opened Gulf of California. Topock Gorge, which the river now follows between the Chemehuevi and Mohave Mountains, is a major focus of this field guide, as it very nicely exposes structural, stratigraphic, and magmatic aspects of the Miocene extensional corridor, a core complex, and detachment faults as well as a pre-Cenozoic batholith. Topock Gorge also is the inferred site of a paleodivide between early Pliocene basins of newly arrived Colorado River water.
    [Show full text]
  • Dry-Farming in Arizona
    Dry-Farming in Arizona Item Type text; Book Authors McOmie, A. M.; Fillerup, C. R.; Bates, L. L.; Heard, H. C. Publisher College of Agriculture, University of Arizona (Tucson, AZ) Rights Public Domain: This material has been identified as being free of known restrictions under U.S. copyright law, including all related and neighboring rights. Download date 07/10/2021 19:03:29 Item License http://creativecommons.org/publicdomain/mark/1.0/ Link to Item http://hdl.handle.net/10150/194879 University of Arizona, College of Agriculture Agricultural Experiment Station Bulletin 84 A pioneer- home, Gila County, Arizona Dry-Farming in Arizona By A. M. McOMIE ASSISTED BY C. R. FILLERUP AND L. L. BATES Edited and Revised by H. C. HEARD Tucson, Arizona, February 1, 1918 GOVERNING BOARD (REGENTS OF THE UNIVERSITY) Ex-Officio His EXCELLENCY, THE GOVERNOR OF ARIZONA THE STATE SUPERINTENDENT OF PUBLIC INSTRUCTION Appointed by the Governor of the State WILLIAM V. WHITMORE, A.M., M.D Chancellor RUDOLPH RASMESSEN Treasurer WILLIAM J. BRYAN, JR., A.B Secretary WILLIAM SCARLETT, A.B., B.D Regent JOHN P. ORME Regent E. TITCOMB Regent JOHN W. FLINN Regent CAPTAIN J. P. HODGSON Regent RUFUS B. VON KLEINS MID, A.M., Sc.D President of the University Agricultural Staff ROBERT H. FORBES, Ph.D Dean and Director JOHN J. THORNBER, A.M Botanist ALBERT E. VINSON, Ph.D ... Biochemist CLIFFORD N. CATLIN, A.M Assistant Chemist GEORGE E. P. SMITH, C.E. .. .Irrigation Engineer FRANK C. KELTON, M.S. Assistant Engineer GEORGE F. FREEMAN, S.D. Plant Breeder WALKER E.
    [Show full text]
  • Arizona Golden Eagle Nest Survey 2013
    ARIZONA GOLDEN EAGLE NEST SURVEY 2013 Kyle M. McCarty, Bald Eagle Field Projects Coordinator Kurt Licence, Birds and Mammals Technician Kenneth V. Jacobson, Raptor Management Coordinator Nongame Branch, Wildlife Management Division Photo by Kurt Licence Technical Report 277 Nongame and Endangered Wildlife Program Nongame Branch Chief: Mike Rabe Arizona Game and Fish Department 5000 West Carefree Highway Phoenix, Arizona 85086 December 2013 CIVIL RIGHTS AND DIVERSITY COMPLIANCE The Arizona Game and Fish Commission receives federal financial assistance in Sport Fish and Wildlife Restoration. Under Title VI of the 1964 Civil Rights Act, Section 504 of the Rehabilitation Act of 1973, Title II of the American with Disabilities Act of 1990, the Age Discrimination Act of 1975, and Title IX of the Education Amendments of 1972, the Arizona Game & Fish Department joins the U.S. Department of the Interior and its bureaus in prohibiting discrimination on the basis of race, color, religion, national origin, age, sex, or disability. If you believe you have been discriminated against in any program, activity, or facility as described above, or if you desire further information please write to: Arizona Game and Fish Department Office of the Deputy Director, DOHQ 5000 West Carefree Highway Phoenix, Arizona 85086 Or The Office for Diversity and Civil Rights U.S. Fish and Wildlife Service 4040 North Fairfax Drive, Room 300 Arlington, Virginia 22203 AMERICANS WITH DISABILITIES ACT COMPLIANCE The Arizona Game and Fish Department complies with all provisions of the Americans with Disabilities Act. This document is available in alternative format by contacting the Arizona Game and Fish Department, Office of the Deputy Director at the address listed above or by calling (623) 236-7290 or TTY 1-800-367-8939.
    [Show full text]
  • USGS Scientific Investigations Map 3236, Pamphlet
    Geologic Map of the Topock 7.5´ Quadrangle, Arizona and California By Keith A. Howard, Barbara E. John, Jane E. Nielson, Julia M.G. Miller, and Joseph L. Wooden Pamphlet to accompany Scientific Investigations Map 3236 2013 U. S. Department of the Interior U. S. Geological Survey Front cover: View downstream into Topock Gorge (“Head of Mojave Cañon”) as pictured in the Report upon the Colorado River of the West (fig. 16 of Ives, 1861). Miocene rocks on the skyline dip steeply to the right (west) in hanging-wall blocks above the Chemehuevi Detachment Fault and Devils Elbow Fault. Contents Abstract............................................................................................................................................................................................ 1 Introduction ...................................................................................................................................................................................... 1 Acknowledgments........................................................................................................................................................................ 2 Geography ....................................................................................................................................................................................... 2 Historical Significance.....................................................................................................................................................................
    [Show full text]
  • Part of Western Arizona
    DEPARTMENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY GEORGE OTIS SMITH, DIRECTOR 352 GEOLOGIC EECONNAISSANCE OF A PART OF WESTERN ARIZONA BY WILLIS T. LEE WITH NOTES ON THE IGNEOUS ROCKS OF WESTERN ARIZONA BY ALBERT JOHANNSEN WASHINGTON GOVERNMENT PRINTING OFFICE 1908 CONTENTS. Page. Introduction.............................................................. 9 Purpose of the investigation.............:.............................. 9 Extent and character of the investigation................................ 9 Summary of previous knowledge....................................... 10 General geography........................................................: 11 Relation to surrounding regions......................................... 11 Topography........................................................... 12 General character................................................. 12 Mountains........................................................ 13 Valleys and plains.................................................. 14 Descriptive geology........................................................ 14 Rock formations........................................................ .1.4 Pre-Cambrian..................................................... 14 Cambrian.......................................................... 15 Carboniferous..................................................... 15 Tertiary... ^...................................................... 16 Eruptive rocks................................................ 16 Greggs breccia...............................................
    [Show full text]