DOCSLIB.ORG

The Tertiary Formations of Western Washington

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
The Tertiary Formations of Western Washington ,~, ASHTNG'l'ON HEOLOHICAL SURV FiY HENRY LANDES, State GMlogls ' B LLETIN N o. 13 The Tertiary Formations of Western Washington By CHARLE E. WEAYER 0 1.\'.' )I l'U.. \\'.\SH. FllA:-IK ) 1. I.A~I ROlt '.'I ~ I'r11r.1c f'81!(T•:R l!)JG ::·::. ·:: .. ··.: :: : : : ..: :. ·. :• :~ ... : ·:.::::: :·:. :·.. .: . ·.·.:·. .: ·.:.. ..··: . .: .. ·.·::·::...... .. .. ... .... ..... ... : :::·-.::·.. :: .. : ... .. .. ... :. : •• : !• •: ••• : .... ... .. .. .. ...... ... .... ) BOA RD OF GEOLOGICAL SURVEY. G0Yc 1·nor ERNEST LISTER, Chairman. L ieutenant Governor L ou is F . H A1tT. State Treasurer E nw AR n l\I EATH, Secretary. P re:-idcnt I-! E NltY S 1, zzALLO. President ERNJ,ST 0. HOLLAND. H .ENUY L ANDES, State Geologist. 15719 LETTER OF TRANS:\IIT1\·\L. G01•ernor Ernest Lister, Chairman, and Members of the Bocird of Geological Survey. GENTLEMEN: 1 have the honor to submit herewith a report en­ titled "T he T ertiary Formations of ,~, cstcrn VVashingtou," by Charle E. VVcaYcr, with the recommendation that it he printed as Bulletin No. lS of the Survey reports. Vcry rcspectfully, 0 H El\rrl.Y L l\NDE.. Sta.te Geologist. .. .. ...... .. ..... .:. ··::.. ...·:: . .. ... ... ·: ..·::··.::~.:: ..: ... ... ... :. : .•: :• •: ·. : : :··. :. ·.: . ··:. .:·.:: . ·:. .. :. •. .: TABLE OF CONTENT S. P«uc ILLUSTRATIONS . .. .. 10 INTRODUCTION . 13 Field wo1·k and acknowledgments. 13 Historical review . • . 16 Bibliography . 19 CHAPTER r. To1,ou11Aeuv .,x1> DHATNAoic................. ...... 54 General statement . • . 54 CHAPTER II. PUE·Tt:R'l'ILl.ln'. Fo1u1Nl'I0NS . li2 General statement . 62 Old metamorphic series. 63 Geographic distribution . 63 Western slope of northern Cascades....................... 63 Olympic mountains . 66 Index granodiorite . 66 Areal distribution . 66 Character of outcro1>. 66 Petrographic description . 66 Correlation . 66 Hoh formation . 67 Geographic distribution . 67 Character of outcrops. 68 Lithology . 71 Geologic structure . 72 Stratigraphy . 74 Conclitions of deposition. 76 Fossils . ... 76 Correlation .............................. , . 76 Chico formation . 77 General st.'ltement . 77 Geographic distribution . 77 Character of outcrops. 78 Lithology . 78 Conditions of deposition...... 79 Geologic structure ......... .' . 79 CHAPTER III. EOCENE FORlCATIONS............................. 81 General statement regarding the Tertiary as a whole.......... 81 General statement of the Eocene............ ................. 85 Geographic distribution . • . 86 Lithology . • . 88 Thickness . 91 Stratigraphy . 92 Fauna . • . 93 Conditions of deposition ...... ........................ ....... 100 Climatic conditions ..................... .................... 101 6 'Table of Contents CHAPTER III. EooE~E Fo101AT1oxs-Oontinuea: 111111,, Newcastle Hills-Grand Ridge Area ...... ..................... 102 Geographic distribution . l 02 Character or outcrops . 102 Lithology .............................................. .. 102 Geologic structure . 105 Stratigraphy . l 09 Green River Area ..... ............................ .... • . 110 Geographic distribution ................................. .. 110 Lithology ........................ ......... ............ 110 Stratigraphy . 111 Geologic structure . 117 Conditions of deposition. 118 Cedar Mountain Area. • . l 18 Geographic distribution . 118 Stratigraphy . 119 Geologic structur e . J 19 Raging River Area . ... ... ................................. 120 Geographic distribution ................................ .. 120 Stratigraphy ... .. ................ • .................. .... 120 Geologic structure . 122 Quimper Peninsula Area ............. ......... ............. 125 Geographic disti-ibution . ... .... ..................... 12;; Lithology . 126 Geologic structure . J 27 Port Crescent Area ..................... ...... .. .......... 129 Geogra1>hic distribution ................................... 129 Lithology .................................... , ....... ... 130 Stratigraphy . l 30 Fauna .................... .. .............. ... ........... 131 Geologic strncture . 13'.l Bald H ills Area ............................... ............. 133 Geographic distribution .... ......................... .... 133 Character of outcrops ............ ........................ 133 Lithology ................................ ............... 13-1 Geologic structure ... ............. .- ...... • ... .. ... .... 136 Black H ills Area ...................................... ..... 137 Geographic distribution .................... .............. l 37 Character o.f outcrops ...................... ...... ..... 13 Lithology ................................. ........ 140 Geologic structure . 1,11 E lk Creek and Chehalis River Area ............... ...... • ... 142 Geographic distribution ................................. 142 Character of outcrops ............. .................... .. 144 'Divide between Columbia and Willapa rivers Area ............ 14:S Geographic distribution . .................. ... ....... ..... 14::; Character of outcrops. H; Lithology ..... .. .. .... ......... ................ ...... 152 Geologic structure ...................................... 153 CatbJamet-Germany Creek Area·. ............................. 15:1 Geographic distribution. 15:3 Character of outcrops ..................................... lii~ Lithology . 156 Geologic structure ............. ................. ... .. .. 157 Table of Contents 7 CHAPTER III. Eoct;x f~ FOIDl.\'flONS - Continuecl: Plf/1< Ilwaco Area . • . 15i Geographic distribution .................... ...... ....... 157 Lithology .............. ................................ 158 . Geologic structure . 159 Lower Cowlitz Valley Area ..................... ............. 159 Geographic dis tribution . 159 Chara.ct.er or outcrops. L59 Stratigraphy ... ...................... ...... ............ 162 Geologic structure ........................................ 163 CHAPTER IV. O L I COC't: NE FOR)IA'flOSS •••..•••.•.••• • •..••••.••. 164 General statement . 164 FaunaJ Zones . 166 j\lfolopophorous lincoi11ensis Zone. 166 T1iri-itella porterensis Zone ......... .. ........ ........... 167 Acila oettysburgensis Zone .......... ......... ........... 168 L ist of Oligoce)1 e and lower Miocene faunas. 170 Lithology ................................................... 179 Stratigraphy . 179 Conditions of deposition ...................................... 183 King County-Restoration Point Area .......................... 186 Geographic distribution. ..
Load more

Recommended publications
  • USGS Geologic Investigations Series I-1963, Pamphlet
    U.S. DEPARTMENT OF THE INTERIOR TO ACCOMPANY MAP I-1963 U.S. GEOLOGICAL SURVEY GEOLOGIC MAP OF THE SKYKOMISH RIVER 30- BY 60 MINUTE QUADRANGLE, WASHINGTON By R.W. Tabor, V.A. Frizzell, Jr., D.B. Booth, R.B. Waitt, J.T. Whetten, and R.E. Zartman INTRODUCTION From the eastern-most edges of suburban Seattle, the Skykomish River quadrangle stretches east across the low rolling hills and broad river valleys of the Puget Lowland, across the forested foothills of the North Cascades, and across high meadowlands to the bare rock peaks of the Cascade crest. The quadrangle straddles parts of two major river systems, the Skykomish and the Snoqualmie Rivers, which drain westward from the mountains to the lowlands (figs. 1 and 2). In the late 19th Century mineral deposits were discovered in the Monte Cristo, Silver Creek and the Index mining districts within the Skykomish River quadrangle. Soon after came the geologists: Spurr (1901) studied base- and precious- metal deposits in the Monte Cristo district and Weaver (1912a) and Smith (1915, 1916, 1917) in the Index district. General geologic mapping was begun by Oles (1956), Galster (1956), and Yeats (1958a) who mapped many of the essential features recognized today. Areas in which additional studies have been undertaken are shown on figure 3. Our work in the Skykomish River quadrangle, the northwest quadrant of the Wenatchee 1° by 2° quadrangle, began in 1975 and is part of a larger mapping project covering the Wenatchee quadrangle (fig. 1). Tabor, Frizzell, Whetten, and Booth have primary responsibility for bedrock mapping and compilation.
    [Show full text]
  • Chapter 4: Destinations – Utilitarian And
    Jefferson County Non-Motorized Transportation and Recreational Trails Plan 2010 Chapter 4: Destinations – Utilitarian and Recreational 2010 Plan Update: Chapter 4 Destinations provides a broad picture of Jefferson County: where people live, work, go to school, shop, and recreate and the locations of tourist facilities and significant public facilities. This information is intended to inform decisions about connecting these destinations with non-motorized transportation facilities. It is not intended as an up-to-date guide. While Chapter 4 has not been updated, it still performs its intended function. This chapter has been retained in the original 2002 Plan format. County, City, Port, School District, State, Federal, and private enterprises have developed an extensive number of commercial, employment, business, educational, recreational, and other public facilities within the County. This extensive array of facilities is of interest to non-motorized transportation and recreational trail users. This chapter describes the most significant destinations. 4.1 Schools The Brinnon, Chimacum, Port Townsend, Queets-Clearwater, Quilcene, Quillayute Valley, and Sequim School Districts provide educational services to Jefferson County residents. Brinnon School District The school district collects students by bus within the district’s service area – which includes all of Brinnon and the areas along US-101 from the Mason County line to Mt Walker and transports them to the central school site. Upper grade students are bused to Quilcene High School. The district operates 6 school bus routes beginning at 6:35-9:00 am and ending at 3:46-4:23 pm for the collection and distribution of different school grades and after school programs.
    [Show full text]
  • Nautiloid Shell Morphology
    MEMOIR 13 Nautiloid Shell Morphology By ROUSSEAU H. FLOWER STATEBUREAUOFMINESANDMINERALRESOURCES NEWMEXICOINSTITUTEOFMININGANDTECHNOLOGY CAMPUSSTATION SOCORRO, NEWMEXICO MEMOIR 13 Nautiloid Shell Morphology By ROUSSEAU H. FLOIVER 1964 STATEBUREAUOFMINESANDMINERALRESOURCES NEWMEXICOINSTITUTEOFMININGANDTECHNOLOGY CAMPUSSTATION SOCORRO, NEWMEXICO NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY E. J. Workman, President STATE BUREAU OF MINES AND MINERAL RESOURCES Alvin J. Thompson, Director THE REGENTS MEMBERS EXOFFICIO THEHONORABLEJACKM.CAMPBELL ................................ Governor of New Mexico LEONARDDELAY() ................................................... Superintendent of Public Instruction APPOINTEDMEMBERS WILLIAM G. ABBOTT ................................ ................................ ............................... Hobbs EUGENE L. COULSON, M.D ................................................................. Socorro THOMASM.CRAMER ................................ ................................ ................... Carlsbad EVA M. LARRAZOLO (Mrs. Paul F.) ................................................. Albuquerque RICHARDM.ZIMMERLY ................................ ................................ ....... Socorro Published February 1 o, 1964 For Sale by the New Mexico Bureau of Mines & Mineral Resources Campus Station, Socorro, N. Mex.—Price $2.50 Contents Page ABSTRACT ....................................................................................................................................................... 1 INTRODUCTION
    [Show full text]
  • Olympic Peninsula Chapter Washington Native Plant Society October 2018 Through January 2019 Fall Newsletter
    Olympic Peninsula Chapter Washington Native Plant Society October 2018 through January 2019 Fall Newsletter To promote the appreciation and conservation of Washington’s native plants and their habitats through study, education and advocacy Do you know what the earth meditates upon in autumn? (Why not give a medal to the first golden leaf?) from Pablo Neruda’s The Book of Questions…. The summer brought an exploration of wildflowers in the higher places. Fall brings a more reflective mood as the cool weather and decreasing light approach. This newsletter is intended as a general summation of what we as a chapter plan to do over the next few months and what continues to inspire us. Pay attention to the trip leaders and authors for updates on specifics. FALL EVENTS Duckabush River Short Trails. Saturday October 20, 2018. Meet at the Quilcene Ranger Station at 9:00 AM to carpool. We will explore the Interrorem Nature trail, an historical interpretive loop trail, before starting down the Rang- er Hole Trail, 0.8-mile-long, which meanders through forest until the last 500' where it descends steeply to the riv- er. Then we'll drive to Collins Campground for lunch along the river. After lunch we'll drive to the 0.8-mile-long Murhut Falls trail, through second growth forest to old growth forest around the falls. Bring your hand lens, field guides, and a lunch. Note: This is a weather-dependent trip. Please let me know if you are interested so I can notify you if there is a change of plans.
    [Show full text]
  • A Late Oligocene Or Earliest Miocene Molluscan Fauna from Sitkinak Island, Alaska
    A Late Oligocene or Earliest Miocene Molluscan Fauna From Sitkinak Island, Alaska By RICHARD C. ALLISON and LOUIE MARINCOVICH, JR. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1233 Describes the late Oligocene or earliest Miocene molluscan fauna from the Narrow Cape Formation on Sitkinak Island, noting the mixture of Asiatic, North American, and endemic high-latitude North Pacific taxa. UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1981 UNITED STATES DEPARTMENT OF THE INTERIOR JAMES G. WATT, &cretary GEOLOGICAL SURVEY Dallas L. Peck, Director Library of Congress Catal ogi ng in Pub1 ication Data A1 1i son, Richard C., 1935- A late Oligocene or earliest Miocene molluscan fauna from Sitki nak Is1and, A1 aska. ( Geological Survey Professional Paper ; 1233) Bibl iography: p. 9-10. Supt. of Doc. no.: I 19.16:1233 1. Moll usks, Fossil --A1 aska--Si tkinak I sl and. 2. Pal eontol ogy--01 igocene . 3. Pal eontol ogy--Mi ocene . I. Marincovich, Louie. 11. Title. 111. Series. QE801. A44 564' .09798' 4 81-607925 AACR2 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 CONTENTS Introduction Faunal composition Age and correlation .................................................................................................................................. Relation to the type Narrow Cape Formation of Kodiak Island Paleoecology ................................................................................................................................................ Water depth Water temperature
    [Show full text]
  • Zwei Miocaene Arten Von Aturia (Nautilaceae)
    Zwei miocaene Arten von Aturia (Nautilaceae) Autor(en): Jung, Peter Objekttyp: Article Zeitschrift: Eclogae Geologicae Helvetiae Band (Jahr): 59 (1966) Heft 1 PDF erstellt am: 29.09.2021 Persistenter Link: http://doi.org/10.5169/seals-163385 Nutzungsbedingungen Die ETH-Bibliothek ist Anbieterin der digitalisierten Zeitschriften. Sie besitzt keine Urheberrechte an den Inhalten der Zeitschriften. Die Rechte liegen in der Regel bei den Herausgebern. Die auf der Plattform e-periodica veröffentlichten Dokumente stehen für nicht-kommerzielle Zwecke in Lehre und Forschung sowie für die private Nutzung frei zur Verfügung. Einzelne Dateien oder Ausdrucke aus diesem Angebot können zusammen mit diesen Nutzungsbedingungen und den korrekten Herkunftsbezeichnungen weitergegeben werden. Das Veröffentlichen von Bildern in Print- und Online-Publikationen ist nur mit vorheriger Genehmigung der Rechteinhaber erlaubt. Die systematische Speicherung von Teilen des elektronischen Angebots auf anderen Servern bedarf ebenfalls des schriftlichen Einverständnisses der Rechteinhaber. Haftungsausschluss Alle Angaben erfolgen ohne Gewähr für Vollständigkeit oder Richtigkeit. Es wird keine Haftung übernommen für Schäden durch die Verwendung von Informationen aus diesem Online-Angebot oder durch das Fehlen von Informationen. Dies gilt auch für Inhalte Dritter, die über dieses Angebot zugänglich sind. Ein Dienst der ETH-Bibliothek ETH Zürich, Rämistrasse 101, 8092 Zürich, Schweiz, www.library.ethz.ch http://www.e-periodica.ch Zwei miocaene Arten von Atavia (Nautilaceae) von Peter Jung (Basel)1) Mit 1 Textfigur und 2 Tafeln ABSTRACT .A neotype of Aturia aturi (Basterot) is designated and figured. Several Miocene species of Aturia from Northern South America, Japan and Australia are believed to be synonyms either of the European A. aturi or the Middle .American A.
    [Show full text]
  • Systematics in Palaeontology
    Systematics in palaeontology THOMAS NEVILLE GEORGE PRESIDENT'S ANNIVERSARY ADDRESS 1969 CONTENTS Fossils in neontological categories I98 (A) Purpose and method x98 (B) Linnaean taxa . x99 (e) The biospecies . 202 (D) Morphology and evolution 205 The systematics of the lineage 205 (A) Bioserial change 205 (B) The palaeodeme in phyletic series 209 (e) Palaeodemes as facies-controlled phena 2xi Phyletic series . 2~6 (A) Rates of bioserial change 2~6 (B) Character mosaics 218 (c) Differential characters 222 Phylogenetics and systematics 224 (A) Clade and grade 224 (a) Phylogenes and cladogenes 228 (e) Phylogenetic reconstruction 23 I (D) Species and genus 235 (~) The taxonomic hierarchy 238 5 Adansonian methods 240 6 References 243 SUMMARY A 'natural' taxonomic system, inherent in evolutionary change, pulses of biased selection organisms that themselves demonstrate their pressure in expanded and restricted palaeo- 'affinity', is to be recognized perhaps only in demes, and permutations of character-expres- the biospecies. The concept of the biospecies as sion in the evolutionary plexus impose a need a comprehensive taxon is, however, only for a palaeontologically-orientated systematics notional amongst the vast majority of living under which (in evolutionary descent) could organisms, and it is not directly applicable to be subsumed the taxa of the neontological fossils. 'Natural' systems of Linnaean kind rest moment. on assumptions made a priori and are imposed Environmentally controlled morphs, bio- by the systematist. The graded time-sequence facies variants, migrating variation fields, and of the lineage and the clade introduces factors typological segregants are sources of ambiguity into a systematics that cannot well be accommo- in a distinction between phenetic and genetic dated under pre-Darwinian assumptions or be fossil grades.
    [Show full text]
  • Olympic Peninsula Chapter Washington Native Plant Society February-May 2019 Newsletter
    Olympic Peninsula Chapter Washington Native Plant Society February-May 2019 Newsletter To promote the appreciation and conservation of Washington’s native "Botany consists in the gathering of plants, and the dismembering of them, in connection with the use of a plants and their habitats through study, education and advocacy “There is a thing in me that dreamed of trees…” starts Mary Oliver’s poem. (A Dream of Trees) Like so many others of hers, she contemplates the busy-ness of our lives with what she sees and receives from the natural world she took in. With the passing of the sea- sons, winter to spring that this newsletter encompasses we embrace the changes with- in our chapter and the area it covers. Programs, hikes, work parties and the second local offering of Fayla’s plant identification and appreciation class presented here all are a part of what continues to inspire us. Pay attention to the trip leaders and authors for updates on specifics..…. Sharon Schlentner John Haskins Tunnel Creek hike PROGRAM Tuesday February 19, 2019. Stalking Washington’s Rare Plants by Dr. Walter Fertig. Port Townsend Community Center 620 Ty- ler St. Social time at 6:30 pm; program begins at 7:00 Dr. Walter Fertig was recruited to Washington in September 2017 to serve as our State Botanist with the Washington Natural Heritage Program based in Olympia, which is a division of the Washington State Department of Natural Resources. Throughout his extensive career as a botanist, Walter developed a ranking system for conservation of rare plants and has helped guide manage- ment plans for more than 100 rare plants throughout the western and south- western states.
    [Show full text]
  • Paleontology and Stratigraphy of Eocene Rocks at Pulali Point, Jefferson County, Eastern Olympic Peninsula, Washington
    PALEONTOLOGY AND STRATIGRAPHY OF EOCENE ROCKS AT PULALI POINT, JEFFERSON COUNTY, EASTERN OLYMPIC PENINSULA, WASHINGTON by RICHARD L. SQUIRES, JAMES L. GOEDERT, and KEITH L. KALER WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES REPORT OF INVESTIGATIONS 31 1992 ., WASHINGTON STATE DEPARTMENT OF Natural Resources Brian Boyle • Commhstoner of Public Lands An Steo_r0$ - Superv1sor Division ol Geology and Earth Resources Raymond Lcmnanls. State Geologlsl PALEONTOLOGY AND STRATIGRAPHY OF EOCENE ROCKS AT PULALI POINT, JEFFERSON COUNTY, EASTERN OLYMPIC PENINSULA, WASHINGTON by RICHARD L. SQUIRES, JAMES L. GOEDERT, AND KEITH L. KALER WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES REPORT OF INVESTIGATIONS 31 1992 W>.SHING'TON STAT1r OEPARTMDIT or Natural Resources 8ncll) Bov,. · COmmmioner ot Pu!xk: tancb M $i.atni; S\lp$1'WOJ' DtY!llcn 01 Gtology ahCS £artti ~ Raymond l.mlMn.:I ~Geologist Cover: From left, ?Falsifusus marysvillensis; Pachycrommium clarki; large bivalve, Veneri­ cardia hornii s.s.; Delectopecten cf. D. vancouverensis sanjuanensis; Turritella uvasana hendoni. These specimens are shown at 150 percent of the dimensions on Plates 1 and 3. Use of trade, product, or firm names in this report is for descriptive purposes only and does not consitute endorsement by the Washington Division of Geology and Earth Resources. This report is available from: Publications Washington Department of Natural Resources Division of Geology and Earth Resources P.O. Box 47007 Olympia, WA 98504-7007 Price $ 1.85 Tax (Stale residenl.t only) .15 Total $ 2.00 Mail orders must be prepaid; please add $1.00 to each order for postage and handling. Make checks payable to the Department of Natural Resources.
    [Show full text]
  • Chapter 13 -- Puget Sound, Washington
    514 Puget Sound, Washington Volume 7 WK50/2011 123° 122°30' 18428 SKAGIT BAY STRAIT OF JUAN DE FUCA S A R A T O 18423 G A D A M DUNGENESS BAY I P 18464 R A A L S T S Y A G Port Townsend I E N L E T 18443 SEQUIM BAY 18473 DISCOVERY BAY 48° 48° 18471 D Everett N U O S 18444 N O I S S E S S O P 18458 18446 Y 18477 A 18447 B B L O A B K A Seattle W E D W A S H I N ELLIOTT BAY G 18445 T O L Bremerton Port Orchard N A N 18450 A 18452 C 47° 47° 30' 18449 30' D O O E A H S 18476 T P 18474 A S S A G E T E L N 18453 I E S C COMMENCEMENT BAY A A C R R I N L E Shelton T Tacoma 18457 Puyallup BUDD INLET Olympia 47° 18456 47° General Index of Chart Coverage in Chapter 13 (see catalog for complete coverage) 123° 122°30' WK50/2011 Chapter 13 Puget Sound, Washington 515 Puget Sound, Washington (1) This chapter describes Puget Sound and its nu- (6) Other services offered by the Marine Exchange in- merous inlets, bays, and passages, and the waters of clude a daily newsletter about future marine traffic in Hood Canal, Lake Union, and Lake Washington. Also the Puget Sound area, communication services, and a discussed are the ports of Seattle, Tacoma, Everett, and variety of coordinative and statistical information.
    [Show full text]
  • Geologic Map of the Center 7.5-Minute Quadrangle, Jefferson County, Washington
    GEOLOGIC MAP OF THE CENTER 7.5-MINUTE QUADRANGLE, JEFFERSON COUNTY, WASHINGTON by Michael Polenz, Harley O. Gordon, Ian J. Hubert, Trevor A. Contreras, Annette I. Patton, Gabriel Legorreta Paulín, and Recep Cakir WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES Map Series 2014-02 December 2014 This geologic map was funded in part by the USGS National Cooperative Geologic Mapping Program, award no. G13AC00173 DISCLAIMER Neither the State of Washington, nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the State of Washington or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the State of Washington or any agency thereof. This map product has been subjected to an iterative internal review process by agency geologists, cartographers, and editors and meets Map Series standards as defined by Washington Division of Geology and Earth Resources. INDEMNIFICATION Research supported by the U.S. Geological Survey, National Cooperative Geologic Mapping Program, under USGS award number G13AC00173. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S.
    [Show full text]
  • New Findings of Eocene Nautiloids from North Western Desert, Egypt
    Journal of African Earth Sciences 159 (2019) 103580 Contents lists available at ScienceDirect Journal of African Earth Sciences journal homepage: www.elsevier.com/locate/jafrearsci New findings of eocene nautiloids from north Western Desert, Egypt T ∗ Mohamed F. Aly , Sherief A. Sadek Geology Department, Faculty of Science, Cairo University, Giza, Egypt ARTICLE INFO ABSTRACT Keywords: The Tertiary marine succession of the north Western Desert, Egypt, is rich in vertebrates, molluscs and other Nautiloids invertebrates, but nautiloids are less abundant. Five nautiloid species, are reported herein: Eutrephoceras sp., Sharks Aturoidea parkinsoni, Aturia aturi, Aturia cf. alabamensis and, Aturia cf. gujaratensis. They are collected and Tertiary identified from the lowermost part of Gebel Minqar Tebaghbagh area. The studied section is located 90 km to the Siwa oasis east of Siwa Oasis at the south of western side of the Qattara Depression. The recovered specimens are mostly Western desert crushed, partially fragmented internal molds, mostly showing badly preserved suture lines and dorsal to sub- Egypt central siphuncles. The nautiloids occur in abundance in random orientation through a clastic-dominated suc- cession. They are mostly represented by middle-aged and mature specimens. Recently, the lower part of Gebel Tabaghbagh was assigned to Late Eocene. 1. Introduction southwest of Aswan city, south Western Desert, Hewaidy and Azzab, 2002 described and identified five nautiloid species of the Paleocene The north western Desert of Egypt is almost a plain area. The only age from the Kurkur Formation. Those are Deltoidonautilus polymorphus characteristic features are the Marmarica Limestone plateau and the Hewaidy and Azzab, Deltoidonautilus sp. 1, Deltoidonautilus sp.
    [Show full text]