DOCSLIB.ORG

Sell-1536, Field Trip Notes, , MILS

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Sell-1536, Field Trip Notes, , MILS CONTACT INFORMATION Mining Records Curator Arizona Geological Survey 416 W. Congress St., Suite 100 Tucson, Arizona 85701 520-770-3500 http://www.azgs.az.gov [email protected] The following file is part of the James Doyle Sell Mining Collection ACCESS STATEMENT These digitized collections are accessible for purposes of education and research. We have indicated what we know about copyright and rights of privacy, publicity, or trademark. Due to the nature of archival collections, we are not always able to identify this information. We are eager to hear from any rights owners, so that we may obtain accurate information. Upon request, we will remove material from public view while we address a rights issue. CONSTRAINTS STATEMENT The Arizona Geological Survey does not claim to control all rights for all materials in its collection. These rights include, but are not limited to: copyright, privacy rights, and cultural protection rights. The User hereby assumes all responsibility for obtaining any rights to use the material in excess of “fair use.” The Survey makes no intellectual property claims to the products created by individual authors in the manuscript collections, except when the author deeded those rights to the Survey or when those authors were employed by the State of Arizona and created intellectual products as a function of their official duties. The Survey does maintain property rights to the physical and digital representations of the works. QUALITY STATEMENT The Arizona Geological Survey is not responsible for the accuracy of the records, information, or opinions that may be contained in the files. The Survey collects, catalogs, and archives data on mineral properties regardless of its views of the veracity or accuracy of those data. .J' . ,Ly UI 'O 1 r_,• 5 )5`1=), _ . h_ / l . .i N ., F IY- O 1_ 0Lr . ?Y 2 2 FENRG& 1966 1< At ok"'N" DEFIRi R T 8;00 ~` 4 YR 2 nd Street behind at pg f B uiidin G U C.?! X A . Can n h ROTTE wan Ka Spc, sdway F Va Ca te s N.as tad down ;..Aa Auars ka.F~.'+d 1`.o the fir -t parktng Place framm wbirb easy k i pan will a k to .stop i! end 2, (SEE AC 1 A TX 2(G map) . stop #1 I wash north of Sahuaro Road near foot of mountains, Contact between Cat. Mountain __ of .te a n north, and a jabble phase of the Tucson 4oun to- -Chaos ~a® ~~ a~uth ., Contact strike about NOW, daps about 80 degrees north . Pikeleta of the "chaos matrix" penetrate the Cat x atam % yo1i te .. t has been called the "rubble phase" of the Tucson Mountain Chaos might be merely a basal conglomerate of the Ample Arko ae- It appears at manw)? places along the Cat Hountain contact, and locally includes huge limestone blocks, About 15 feet down-wash from the contact are mole beds, highly disturbed, followed by purplish creation t pe rcck la tho do d-wash a s 1 :i exposure of Amole rests with gradaUona1 ?) contact on _cr ,si c d ds ~ Stop #2 Two hundred yards ±) south of a rig Silver _Lit~ dike . Approaching limes tone block through Cat Mountain hyolite a wall masses of the "chaoa rubble" dire seeno then highly dirt!~ j4, bedded Anole . ` e edge s of the limestone e peaure are rubhit s, 4 .+kn nr s 1 Q m stet r 'fr' as though P allyr s ,r .. West the Q =l .? * . .r very s te'ep Van „a ;_, u , r .nve ;-wtn ';,.aL n ~'".i .J;Pw" i t c'R4.."wng cash o tees, of this : poaure, the Cat Mountain R hyalite contact in covered, `: .`e last small outcr op reveals steep dips . RETURN TO CRS A PRIED TO JUAN SANTA Z P IC= ARE K Stop #3 First colorful outcrop in Juan Santa Cruz Wash . Shows apparentt mixing of red ailtatone with coarser, purplish elastics. Chips of red ai ltotoua are on top of the outcrop . laminae in bank dip away from coarse rubblee and are overlain by pinkish sandstone . Stop 4 Second outcrop . Mixing of coarse and fine-grained materials . Stop #5 Zone of disturbance on bond in wash . On the north side, sandstone intrude,(?) red bade0 `here are many red chips in the purple sandstone below . Twenty feet d wash, on the north side, purplish rubble breaks upward through red beds along a fiecure(?)0 Similar phenomena appear on the cauth side, where coarse clastic, show steep dins . Stop 46 In e"i mphL theatre" below. "lluidi.aod rhyolite boulder" in red beds The red ailtatone appears to have worked its way into the "boulder" ac it Ksintegrated . Stop #7 "Eruptive fissure,.." Climb back on north side to view fissure to sauth . Red bed layer to west rises eastward into fissure, then appears as a block in the fissure zone . Red bed layer up-wash, to the east, should be below level of wash at this place . Before leaving position on bank, notice steep red beds. intruded(?) by purplish rubble . On south side notice that the red bed seems to grade eastward through laminated sandstone into the fissure filling, yet the lamination, which is flat, can be traced into the fissure filling , some of which appears to have welled upward . To the right (west) the red bed is overlain by a well-stratified light gray rock(tuff?) . Climb up fissure on south side of wash . The surface trace of the fissure is marked by breceia, under which is the "tuff ." Steeply-dipping red bed wisps appear along the fissure zone to the crest . Stop #8 Farther down wash and under the red bed ., The red bed seems to have no definite lower contact , and it may have been lifted by the underlying rubble . Notice the many large elects in the red bed . Trace the red bed up out of the wash to the south . From its probable trace, it must have been lifted by something below, The dip becomes reversed, from westerly to eastwardly . Uplift seems to be cor- roborated k sp teen eastward dip in exposures below the main red layer . Were the conformable sandstones deposited with the red beds, or did they lift and intrude the red beds? Stop #9 Around sharp bend in wash, at the north end of a large quartzite lens . Structural discordances, locally bordered by rubble, appear within the quartzite . The over- all structure seems to be anticlinal, but some inner portions seem to have welled upward across outer ones . Some of the quartzite shows a peculiar mottling, possibly associated with destruction of lamination . There is a small porphyry mass on the east side, and the red beds east of the. porphyry are probably a lower member than we have seen before. Stop #10 At south end of quartzite lens . Lamination converges to a point at end of lens ., Laminae to the south swerve around the lens . Behind them is a larger mass of porphyry . Stop #11 On east side of porphyry, small sedimentary dikes,., Stop #12 At dam . "Intrusive breccia" on contact between andesite and quartzite has rounded cleats . Is this comparable to the "rubble phase" of the Tucson Mountain Chaos? Stop #13 Near west contact of the porphyry, on a flat surface, little pipes of the porphyry have risen into pinkish- brown sandstone . Other contact details are exposed near-by . Stop #14 At small intrusion on northwest side of main mass . Near south contact, northwest -striking lamination in quartzite is cut off abruptly near the intrusive contact by very faintly laminated quartzite that parallels the contact, In the northeast wall a "fissure of fumarolic action" has laminae striking N7Qg across laminae In quartzite that trend about N25W ., :s this an indication of the way in which cracks were widened forr intrusion from below? -2- ro T < ~-f Cro N. ;ii.~t 7^F . .,i r- h. "`j; . ., ul -,en' u 4 . .,-&f .' -a I. .2• ci v'i.: .3b i'i .~~ .,5 ~, 7~ E. g ` ' .. Y .e ppa.5:i*.a '.A% b ~1®~ d ;` ered beanC~c.3~ Oil the e astar e Slope s upended -- -n I. h' ed & .one nor ~;b adlope aIxro she coarr~n0.3- fc :appc'nr 'xQ intrude the red bade . Near 'the top, the coa ee cleatic vr.:9 l.r..a t!:`..E::o. pat-land o eodll as though pushed VIP fr m b"eUow S& R3 Of this Material tc 'p : nh`-sh as .h ug',h from adrxtxture with ndarly hg red beds;,- Stage of . .n'1.rua,on and miming r:ru h seen below . Walk down around 'ant cdgo of coarse +'" i stia " .` _. and rC . ::n?" r t3 A 'n Cluetice appear to Occupy a 'EMI-plunging zroug , do m w ich 9 -ey flowed` Or perhaps they welled up along a SE-trending"fissure? Obearve *;he et.Tron dien irbance of the red bade and intermixture i b, coarser claxatice at S end of outcrop, Walk up along east side of outcrop . Did 'the coarse rubble flow SE, do i a trough ; dLa It rise als,i--g a fieausre and spread sidewise- or did both action .e take, -place? The hot, ;Intrusive ignithri to was probably not far below this} 1eveaL Stop l7 trail on .oath slope of the middl e peak , rubble a es to have lifted the stratified d vol canice :, Stop #1 cop of eourh peak, steeply-dipping red sneaks uggeet steep upwelliug Stop #19 Sma ll pipe of ignnimhri te OK: tr'l L Stop #20 Off trail to :, and above 19 : aaaa ® of >,ubhle appears to have risen steeply .
Load more

Recommended publications
  • Geologic Map of the Phoenix Mountains, Central Arizona
    Geologic Map of the Phoenix Mountains, Central Arizona Julia K. Johnson, Stephen J. Reynolds, and David A. Jones Arizona Geological Survey Contributed Map 04-A Tucson, AZ 2003 Introduction The Phoenix Mountains, located within the Phoenix metropolitan area of central Arizona, are a northwest-trending, uplifted fault block that extends for about 13 km (8 miles) from Moon Hill in the northwest to Camelback Mountain in the southeast (Fig. 1). The area includes a main range, with 420 m (1,378 ft) of local relief, as well as several isolated peaks. The geologic mapping for this study covers the main part of the range, including (from northwest to southeast) Moon Hill, Shaw Butte, North Mountain, Stoney Mountain, Dreamy Draw, Squaw Peak, and the informally named Quartzite Ridge. The main goals of this study were to document the bedrock geology, reconstruct the geologic history, and produce a 1:24,000 geologic map of the range. The area contains a remarkable stratigraphic sequence that records the formation of continental crust in the region as it evolved from an oceanic setting to a more continental setting. The rocks have been cleaved and steeply tilted, providing a well-exposed traverse through this exceptional sequence. The range also contains spectacular Proterozoic (Precambrian) structures, which document the extreme deformation that affected the crust soon after it had formed. Lookout Moon Mtn. Hill Shadow Thunderbird Mtn. Hills Shaw Stoney North Butte Mtn. Mtn. Squaw Quartzite aw Peak Ridge Dr my Mummy ea Dr Mtn. Camelback Mtn. Figure 1. Three-dimensional perspective of the Phoenix Mountains, looking north.
    [Show full text]
  • Sonoran Preserve Master Plan
    City of Phoenix Sonoran Preserve Master Plan City of Phoenix Sonoran Preserve Sonoran Preserve Master Plan An Open Space Plan for the Phoenix Sonoran Desert HCDE Sonoran Preserve Master Plan An Open Space Plan for the Phoenix Sonoran Desert City of Phoenix Parks, Recreation and Library Department February 17, 1998 Herberger Center for Design Excellence Arizona State University The City of Phoenix prohibits discrimination on the basis of race, ethnicity, national origin, sex, religion, age, sexual ori- entation, or disability in its services, programs and activi- ties. Anyone who believes he or she has been discriminated against may file a complaint with the City of Phoenix Equal Opportunity Department. The City of Phoenix does not carry accident insurance to cover participants. Involvement in any activity is done at the participant’s own risk. This pubication can be provided in an alternative format upon request. Call 602-262-6862 (voice). TDD 602-262- 6713 (parks and recreation) or 602-534-5500 (city opera- tor). FAX 602-534-3787. E-mail [email protected] Figure Credits Ward Brady: cover map, chapter 2 divider, 2.14 Jim Burke: chapter 3 divider, 3.19, 5.4 City of Phoenix Information Technology: 2.13 City of Phoenix Parks, Recreation, and Library Department: cover owl, 1.1, 1.2, 1.6, 1.7, 1.8, 1.9, 1.11, 1.12, 2.2, 2.3, 2.4, 2.5, 2.12, 2.15, 2.17, 3.4, 3.5, 3.6, 3.7, 3.18, 3.23, 4.1, 4.2, chapter 5 divider, 5.5, 5.7, 5.8, 5.9, 5.10, 5.11 City of Phoenix Planning Department: 2.1, 4.3, 4.4, 4.5, 4.6, 4.7 Joe Ewan: cover children,
    [Show full text]
  • Index 1 INDEX
    Index 1 INDEX A Blue Spring 76, 106, 110, 115 Bluff Spring Trail 184 Adeii Eechii Cliffs 124 Blythe 198 Agate House 140 Blythe Intaglios 199 Agathla Peak 256 Bonita Canyon Drive 221 Agua Fria Nat'l Monument 175 Booger Canyon 194 Ajo 203 Boundary Butte 299 Ajo Mountain Loop 204 Box Canyon 132 Alamo Canyon 205 Box (The) 51 Alamo Lake SP 201 Boyce-Thompson Arboretum 190 Alstrom Point 266, 302 Boynton Canyon 149, 161 Anasazi Bridge 73 Boy Scout Canyon 197 Anasazi Canyon 302 Bright Angel Canyon 25, 51 Anderson Dam 216 Bright Angel Point 15, 25 Angels Window 27 Bright Angel Trail 42, 46, 49, 61, 80, 90 Antelope Canyon 280, 297 Brins Mesa 160 Antelope House 231 Brins Mesa Trail 161 Antelope Point Marina 294, 297 Broken Arrow Trail 155 Apache Junction 184 Buck Farm Canyon 73 Apache Lake 187 Buck Farm Overlook 34, 73, 103 Apache-Sitgreaves Nat'l Forest 167 Buckskin Gulch Confluence 275 Apache Trail 187, 188 Buenos Aires Nat'l Wildlife Refuge 226 Aravaipa Canyon 192 Bulldog Cliffs 186 Aravaipa East trailhead 193 Bullfrog Marina 302 Arch Rock 366 Bull Pen 170 Arizona Canyon Hot Springs 197 Bush Head Canyon 278 Arizona-Sonora Desert Museum 216 Arizona Trail 167 C Artist's Point 250 Aspen Forest Overlook 257 Cabeza Prieta 206 Atlatl Rock 366 Cactus Forest Drive 218 Call of the Canyon 158 B Calloway Trail 171, 203 Cameron Visitor Center 114 Baboquivari Peak 226 Camp Verde 170 Baby Bell Rock 157 Canada Goose Drive 198 Baby Rocks 256 Canyon del Muerto 231 Badger Creek 72 Canyon X 290 Bajada Loop Drive 216 Cape Final 28 Bar-10-Ranch 19 Cape Royal 27 Barrio
    [Show full text]
  • The Maricopa County Wildlife Connectivity Assessment: Report on Stakeholder Input January 2012
    The Maricopa County Wildlife Connectivity Assessment: Report on Stakeholder Input January 2012 (Photographs: Arizona Game and Fish Department) Arizona Game and Fish Department In partnership with the Arizona Wildlife Linkages Workgroup TABLE OF CONTENTS LIST OF FIGURES ............................................................................................................................ i RECOMMENDED CITATION ........................................................................................................ ii ACKNOWLEDGMENTS ................................................................................................................. ii EXECUTIVE SUMMARY ................................................................................................................ iii DEFINITIONS ................................................................................................................................ iv BACKGROUND ................................................................................................................................ 1 THE MARICOPA COUNTY WILDLIFE CONNECTIVITY ASSESSMENT ................................... 8 HOW TO USE THIS REPORT AND ASSOCIATED GIS DATA ................................................... 10 METHODS ..................................................................................................................................... 12 MASTER LIST OF WILDLIFE LINKAGES AND HABITAT BLOCKSAND BARRIERS ................ 16 REFERENCE MAPS .......................................................................................................................
    [Show full text]
  • Michael Kenney Paleozoic Stratigraphy of the Grand Canyon
    Michael Kenney Paleozoic Stratigraphy of the Grand Canyon The Paleozoic Era spans about 250 Myrs of Earth History from 541 Ma to 254 Ma (Figure 1). Within Grand Canyon National Park, there is a fragmented record of this time, which has undergone little to no deformation. These still relatively flat-lying, stratified layers, have been the focus of over 100 years of geologic studies. Much of what we know today began with the work of famed naturalist and geologist, Edwin Mckee (Beus and Middleton, 2003). His work, in addition to those before and after, have led to a greater understanding of sedimentation processes, fossil preservation, the evolution of life, and the drastic changes to Earth’s climate during the Paleozoic. This paper seeks to summarize, generally, the Paleozoic strata, the environments in which they were deposited, and the sources from which the sediments were derived. Tapeats Sandstone (~525 Ma – 515 Ma) The Tapeats Sandstone is a buff colored, quartz-rich sandstone and conglomerate, deposited unconformably on the Grand Canyon Supergroup and Vishnu metamorphic basement (Middleton and Elliott, 2003). Thickness varies from ~100 m to ~350 m depending on the paleotopography of the basement rocks upon which the sandstone was deposited. The base of the unit contains the highest abundance of conglomerates. Cobbles and pebbles sourced from the underlying basement rocks are common in the basal unit. Grain size and bed thickness thins upwards (Middleton and Elliott, 2003). Common sedimentary structures include planar and trough cross-bedding, which both decrease in thickness up-sequence. Fossils are rare but within the upper part of the sequence, body fossils date to the early Cambrian (Middleton and Elliott, 2003).
    [Show full text]
  • Ironwood Forest National Monument Resources Summary
    Natural Resources Summary (5/2017) Ironwood Forest National Monument Geology & Cultural History of Ironwood Forest National Monument-IFNM, Southern Arizona ____________________________________ INFM Parameters • Established 9 June 2000 - Exe. Order President W.J. Clinton • Land Mangement: Bureau of Land Management • Footprint: 188,619 acres (includes 59,922 acres non-federal lands, chiefly State Trust lands, and minor private holdings) • Cultural features: 200+ Hohokam sites; historical mine-related sites • Current Uses: Recreation, cattle grazing, mining on pre-existing mine sites • Threatened Species: Ferruginous pygmy owl, desert bighorn sheep, lesser long-nosed bat, turk’s head cactus Physiographic Features Basin & Range Province, Roskruge Mtns., Samaniego Hills, Sawtooth Mtns., Silver Bell Mtns., Sonoran Desert, Western Silver Bell Mtns. Mining History • Predominantly in the Silver Bell Mtns. • Major Ore Deposit(s) type: porphyry copper • Ore: copper, lead, zinc, molybdenum, gold Map of the Ironwood Forest National Monument (BLM). The IFNM surrounds and partially encompasses the Silver Bell metallic mineral district and either covers parts of or encompasses the Waterman, Magonigal and the Roskruge mineral districts. The most productive area has been the Silver Bell Mining District, where active mining continues to this day, immediately southwest of the monument, and by grandfather clause, on the the monument proper. The Silver Bell Mmining District evolved from a collection of intermittent, poorly financed and managed underground mining operations in the late 1800s to mid-1900s struggling to make a profit from high grade ores; to a small but profitable producer, deploying innovative mining practices and advancements in technology to Mineral Districts of eastern Pima County. Yellow highlighted successfully develop the district’s large, low-grade copper resource districts are incorporated in part or entirely in IFNM (AZGS (D.
    [Show full text]
  • Arizona, Road Trips Are As Much About the Journey As They Are the Destination
    Travel options that enable social distancing are more popular than ever. We’ve designated 2021 as the Year of the Road Trip so those who are ready to travel can start planning. In Arizona, road trips are as much about the journey as they are the destination. No matter where you go, you’re sure to spy sprawling expanses of nature and stunning panoramic views. We’re looking forward to sharing great itineraries that cover the whole state. From small-town streets to the unique landscapes of our parks, these road trips are designed with Grand Canyon National Park socially-distanced fun in mind. For visitor guidance due to COVID19 such as mask-wearing, a list of tourism-related re- openings or closures, and a link to public health guidelines, click here: https://www.visitarizona. com/covid-19/. Some attractions are open year-round and some are open seasonally or move to seasonal hours. To ensure the places you want to see are open on your travel dates, please check their website for hours of operation. Prickly Pear Cactus ARIZONA RESOURCES We provide complete travel information about destinations in Arizona. We offer our official state traveler’s guide, maps, images, familiarization trip assistance, itinerary suggestions and planning assistance along with lists of tour guides plus connections to ARIZONA lodging properties and other information at traveltrade.visitarizona.com Horseshoe Bend ARIZONA OFFICE OF TOURISM 100 N. 7th Ave., Suite 400, Phoenix, AZ 85007 | www.visitarizona.com Jessica Mitchell, Senior Travel Industry Marketing Manager | T: 602-364-4157 | E: [email protected] TRANSPORTATION From east to west both Interstate 40 and Interstate 10 cross the state.
    [Show full text]
  • Summits on the Air – ARM for the USA (W7A
    Summits on the Air – ARM for the U.S.A (W7A - Arizona) Summits on the Air U.S.A. (W7A - Arizona) Association Reference Manual Document Reference S53.1 Issue number 5.0 Date of issue 31-October 2020 Participation start date 01-Aug 2010 Authorized Date: 31-October 2020 Association Manager Pete Scola, WA7JTM Summits-on-the-Air an original concept by G3WGV and developed with G3CWI Notice “Summits on the Air” SOTA and the SOTA logo are trademarks of the Programme. This document is copyright of the Programme. All other trademarks and copyrights referenced herein are acknowledged. Document S53.1 Page 1 of 15 Summits on the Air – ARM for the U.S.A (W7A - Arizona) TABLE OF CONTENTS CHANGE CONTROL....................................................................................................................................... 3 DISCLAIMER................................................................................................................................................. 4 1 ASSOCIATION REFERENCE DATA ........................................................................................................... 5 1.1 Program Derivation ...................................................................................................................................................................................... 6 1.2 General Information ..................................................................................................................................................................................... 6 1.3 Final Ascent
    [Show full text]
  • Download out of the Ashes
    OUTOUT OF OF THE THE ASHES ASHES THE HISTORYHISTORY OF THE CITY OF PHOENIX Early Life Along the Salt River and the land became fertile. The ultimate fate of this ancient society, however, is a mystery. undreds of years before any of the cities The accepted belief is that it was destroyed by in the eastern part of our country were a prolonged drought. Roving Indians, Hso much as clearings in the wilderness, observing the Pueblo Grande ruins and the vast a well established, civilized community canal system these people left behind, gave populated the land we know as Phoenix. The them the name “Ho Ho Kam” – meaning the Pueblo Grande ruins, which were occupied people who have gone. between 700 A.D. and 1400 A.D., are a Phoenix’s modern history begins in the testament to our city’s ancient roots. second half of the 19th century. In 1867, Jack The wide Salt River ran through the Valley Swilling of Wickenburg stopped to rest his of the Sun, but there was little rain or melting horse at the foot of the north slopes of the snow to moisten the brown earth from river to White Tank Mountains. He looked down and mountain range on either side. But former across the expansive Salt River Valley and his residents were industrious, enterprising and eyes caught the rich gleam of the brown, dry imaginative. They built an irrigation system, soil turned up by the horse’s hooves. He saw consisting mostly of some 135 miles of canals, 1 farm land, predominately free of rocks, and in a place beyond the reach of heavy frost or snow.
    [Show full text]
  • General Monitoring and Discovery Plan for the City of Phoenix, Maricopa County, Arizona
    General Monitoring and Discovery Plan for the City of Phoenix, Maricopa County, Arizona Prepared for City of Phoenix City Archaeology Office Parks and Recreation Department Pueblo Grande Museum 4619 E. Washington Street Phoenix, Arizona 85034 Pueblo Grande Museum Project No. 2017-009 Project Report No. 19-120 Desert Archaeology, Inc. Prepared by: T. Kathleen Henderson Submitted by: Patricia Castalia Desert Archaeology, Inc. 3975 N. Tucson Boulevard Tucson, Arizona 85716 July 31, 2020 ABSTRACT Report Title: General Monitoring and Discovery Plan for the City of Phoenix, Maricopa County, Arizona Project Name: General Monitoring and Discovery Plan Update Project Location: Phoenix, Maricopa County, Arizona Project Sponsor: City of Phoenix Sponsor Project Number(s): None (Pueblo Grande Museum No. 2017-009) Lead Agency: City of Phoenix Other Involved Agencies: Arizona State Historic Preservation Office; Arizona State Museum Applicable Regulations: City of Phoenix Historic Preservation Ordinance (Zoning Ordinance Chapter 8); Arizona Antiquities Act (ARS §41-841 et seq.); Arizona state burial laws (ARS §41-844 and ARS §41-865) Funding Source: City Description of the Project/Undertaking: Provide an updated general monitoring and discovery plan for the city of Phoenix Project Area/Area of Potential Effects (APE): Lands inside the boundary of the city of Phoenix and city-owned facilities that lie outside this boundary; acreage to be established by individual projects conducted under this updated plan Legal Description: To be established by individual
    [Show full text]
  • Grand Canyon
    U.S. Department of the Interior Geologic Investigations Series I–2688 14 Version 1.0 4 U.S. Geological Survey 167.5 1 BIG SPRINGS CORRELATION OF MAP UNITS LIST OF MAP UNITS 4 Pt Ph Pamphlet accompanies map .5 Ph SURFICIAL DEPOSITS Pk SURFICIAL DEPOSITS SUPAI MONOCLINE Pk Qr Holocene Qr Colorado River gravel deposits (Holocene) Qsb FAULT CRAZY JUG Pt Qtg Qa Qt Ql Pk Pt Ph MONOCLINE MONOCLINE 18 QUATERNARY Geologic Map of the Pleistocene Qtg Terrace gravel deposits (Holocene and Pleistocene) Pc Pk Pe 103.5 14 Qa Alluvial deposits (Holocene and Pleistocene) Pt Pc VOLCANIC ROCKS 45.5 SINYALA Qti Qi TAPEATS FAULT 7 Qhp Qsp Qt Travertine deposits (Holocene and Pleistocene) Grand Canyon ၧ DE MOTTE FAULT Pc Qtp M u Pt Pleistocene QUATERNARY Pc Qp Pe Qtb Qhb Qsb Ql Landslide deposits (Holocene and Pleistocene) Qsb 1 Qhp Ph 7 BIG SPRINGS FAULT ′ × ′ 2 VOLCANIC DEPOSITS Dtb Pk PALEOZOIC SEDIMENTARY ROCKS 30 60 Quadrangle, Mr Pc 61 Quaternary basalts (Pleistocene) Unconformity Qsp 49 Pk 6 MUAV FAULT Qhb Pt Lower Tuckup Canyon Basalt (Pleistocene) ၣm TRIASSIC 12 Triassic Qsb Ph Pk Mr Qti Intrusive dikes Coconino and Mohave Counties, Pe 4.5 7 Unconformity 2 3 Pc Qtp Pyroclastic deposits Mr 0.5 1.5 Mၧu EAST KAIBAB MONOCLINE Pk 24.5 Ph 1 222 Qtb Basalt flow Northwestern Arizona FISHTAIL FAULT 1.5 Pt Unconformity Dtb Pc Basalt of Hancock Knolls (Pleistocene) Pe Pe Mၧu Mr Pc Pk Pk Pk NOBLE Pt Qhp Qhb 1 Mၧu Pyroclastic deposits Qhp 5 Pe Pt FAULT Pc Ms 12 Pc 12 10.5 Lower Qhb Basalt flows 1 9 1 0.5 PERMIAN By George H.
    [Show full text]
  • Presidential Documents 37259 Presidential Documents
    Federal Register / Vol. 65, No. 114 / Tuesday, June 13, 2000 / Presidential Documents 37259 Presidential Documents Proclamation 7320 of June 9, 2000 Establishment of the Ironwood Forest National Monument By the President of the United States of America A Proclamation The landscape of the Ironwood Forest National Monument is swathed with the rich, drought-adapted vegetation of the Sonoran Desert. The monument contains objects of scientific interest throughout its desert environment. Stands of ironwood, palo verde, and saguaro blanket the monument floor beneath the rugged mountain ranges, including the Silver Bell Mountains. Ragged Top Mountain is a biological and geological crown jewel amid the depositional plains in the monument. The monument presents a quintessential view of the Sonoran Desert with ancient legume and cactus forests. The geologic and topographic variability of the monument contributes to the area's high biological diversity. Ironwoods, which can live in excess of 800 years, generate a chain of influences on associated understory plants, affecting their dispersal, germina- tion, establishment, and rates of growth. Ironwood is the dominant nurse plant in this region, and the Silver Bell Mountains support the highest density of ironwood trees recorded in the Sonoran Desert. Ironwood trees provide, among other things, roosting sites for hawks and owls, forage for desert bighorn sheep, protection for saguaro against freezing, burrows for tortoises, flowers for native bees, dense canopy for nesting of white-winged doves and other birds, and protection against sunburn for night blooming cereus. The ironwood-bursage habitat in the Silver Bell Mountains is associated with more than 674 species, including 64 mammalian and 57 bird species.
    [Show full text]