DOCSLIB.ORG

Geology of the Killi K-I Tkilli K Region Alaska

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Geology of the Killi K-I Tkilli K Region Alaska Geology of the Killi k-I tkilli k Region Alaska By WILLIAM W. PATTON, JR., and IRVIN L. TAILLEUR EXPLORATION OF NAVAL PETROLEUM RESERVE NO. 4 AND ADJACENT AREAS, NORTHERN ALASKA, 1944-53 PART 3, AREAL GEOLOGY GEOLOGICAL SURVEY PROFESSIONAL PAPER 303-G Prepared and published at the reguest of and in cooperation with the U.S. Department of the Navy, OJce of Naval Petroleum and Oil Shale Reserves UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1964 UNITED STATES DEPARTMENT OF THE INTERIOR STEWART L. UDALL, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director The U.S. Geological Survey Library hne cataloged this publication as follows: Patton, William Wallace, 1923- Geology of the Killik-Itkillik region, Alaska, by William W. Patton, Jr., and Irvin L. Tailleur. Washington, U.S. Govt. Print. Off., 1964. iv, 409-500 p. illus., maps (1 col.) diagrs., profiles, tables. 29 em. (U.S. Geological Survey. Professional paper 303-G) Exploration of Naval Petroleum Reserve No. 4 and adjacent areas, northern Alaska, 194453. Part 3, Areal geology. Part of illustrative matter fold. in pocket. Prepared and published at the request of and in cooperation wikh (Continued on next card) Patton, William Wallace, 1923- Geology of the Killik- Itkillik region, Alaska. 1964. (Card 2) the U.S. Dept. of the Navy, Office of Naval Petroleum and Oil Shale Reserves. Bibliography : p. 497-498. 1. Geology-Alaska-Killik-Itkillik region. I. Tailleur, Irvin Lor- raine, 1924- joint author. 11. U.S. Oface of Naval Petroleum and Oil Shale Reserves. (Series) For sale by the Superintendent of Documents, U.S. Government Prin:ing Office Washington, D.C. 20402 CONTENTS Page Page Abtract------------------------------------------- 409 Sedimentary rocks-Continued Introducti~n--------------------------------------- 410 Quaternary deposits ------- ----- ----- -- --- ----- -- General------------__---------------------------- 410 Upland gravels- ------ ----- - - -- ------ --- --- - Location and size of area- - - - - ----- --- -- - --- --- -- 411 Glacial deposits .............................. Accessibility and transportation- - - - ----- ------- -- 411 Flood-plain deposits ------- - --- _--------- ----- Objectives---------_---------------------------- 411 Mapping methods- - - - .......................... 411 Previous investigations - - - - - - - - - - - - - - - - - - - - - - - - - - 412 Present investigations - - - - - - - - - - - - - - - - - - - - - - - - - - - 412 Acknowledgments ----- - - - - - - - - - - - - - - - - - - - - - - - - - - 413 Geography- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 413 Microscopic--------__-----------__-_------------ Physiography - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - 413 Plagioclase-- - - - - - - - - - - - - - - - - - - - - - - - - - - - Regional setting ............................ 413 Augite--------------_-_------------------ Killik-Itkillik region ----- --- - ----- - - - ----- --- 414 Other pyrogenetic minerals ----- -- -- ---- - - Brooks Range belt of Paleozoic strata- - - - - 414 Opaque minerals ---- -- ---- ---------- - -- - Foothills belt of complexly deformed upper Deuteric and secondary minerals ---------- Paleozoic and Mesozoic strata---- - ---- - Clastic rocks------------------------------- Foothills belt of the Fortress Mountain Age------------------------------------------- Formation - - - - - - - - - - - - - - - - - - - - - - - - - - - Structural geology - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Lowland belt of the Torok Formation- - - - - _ Geologic map and cross sections- - ---------------- Foothills belt of the Nanushuk Group- - - - - - Regional setting-- .............................. Drains@---_---------------------------------- Structural zone I- - - ............................ Vegetation- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Structural zone 11- - - - -------------- ------------ Sedimentaryr~cks---------------------------------- Structural zone I11 .............................. General features. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Structural zone IV.............................. Missrss~pp~an.. rocks ---- - - - - - - - - - - - - - - - - - - - - - - - - - - Structural zone V............................... Lisburne Group ------- --- -- ------ -- -- ------- Interpretation of subsurface structure- -- ---------- Permian(?) rocks - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Structural zone IV ---,---------------------- Siksikpuk Formation-- -- -- --- -- --- --- -- -- -- - Structural zones 1-111 ------------------- ---- Triassic rocks - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _ - - - - Evidence of thrust faulting in mapped area- Shublik Formation ---------- - -- --- -- --- --- - - Lisburne Group along sole of thrust faults- Jurassic rocks---------------------------------- Geologic history - - -,------- - ------ -- -- - - -- - -- - -- -- -- Tiglukpuk Formation- - ..................... Mississippian to Triassic--.. ------- --------------- Tuffaceous graywacke unit and correlative(?) Significant.. detail--------------------------- . rocks------------------------------------ Miss~ss~ppian---- - - - - - - - - - - - - - - - - - - - - - - - Tuffaceous graywacke unit- - - --- --- ----- - Pennsylvanian- - - - - - - - - - - - - - - _ - - - - - - - - - - Correlative (?) rocks- - - - - - - - - - - - - _ - - - - - - - Permian(?)----------------------------- Age - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Permian to Triassic ..................... Cretaceous rocks ............................... Triassic-- -- - - - - - - - - ,- - - - - - - - _ - - - - - - - - - - Okpikruak Formation- - --- - -- - - -- - -- -- - ----- Triassic to Jurassic ------ - - - --- _------ - - - - Fortress Mountain Formation ---------------- Jurassic and Cretaceous- - - ------------------ ---- Torok Formation- .......................... Significant details--- - --- - -- - - -- - --- --- - - - - -- Nanushuk Group ........................... Late Jurassic (Oxfordian-Kimmeridgian- Tuktu Formation ........................... Portlandian) - - - - - - - - - - - - - - - - - - - - - - - - - Chandler Formation, Killik Tongue ----------- Latest Jurassic (Portlandian) ------------- Ninuluk Formation- - - -- - - ---- --- - -- - ------ - Late Jurassic to Early Cretaceous --------- Heavy minerals ................................. Early Cretaceous (Neocomian) - ---------- Tiglukpuk and Okpikruak Formations---- --- - _ Early Cretaceous (Neocomian to Albian) - - Early Cretaceous (early Albian) ---------- Fortress Mountain Formation- _ - - -- ---- --- _- - Early Cretaceous (early Albian to middle Torok Formation and Nanushuk Group- ---- _ - Albian) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Heavy minerals as stratigraphic indices-- - - - - - - Early and Late Cretaceous (middle Albian Interpretations - - - - - - - - - - - - - - - - - - - - - - - - - - - - - to late Cenomanian) - - -_------------.- Suggestions for additional study- - - - -- --- ---- - Late Cretaceous (post-late Cenomanian)--- 111 TV CONTENTS Geologic history-Continued page Economic geology-Continued Tertiary,-------------------------------------- 495 Petroleum-Continued Quaternary------------------------------------ 4 95 Structure-Continued Page Economic geology ................................... 496 Structural zone IV ...................... 496 Petroleum------------------------------------- 496 Structural zone 1-111 .................... 497 Source rocks------------------------------- 496 Phosphate rock--------------------------------- 497 Reservoir characteristics..................... 496 Coal------------------------------------ 497 Structure- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 496 References cited ................................... 497 Structural zone V....................... 496 Index--------------------------------------------- 499 ILLUSTRATIONS Page PLATE 50. Reconnaissance geologic map and generalized sections of the Killik-Itkillik region- - - - -- - _ _ - - - - - - - - - -__ - - In pocket 51. Seismic reflection profiles across the belt of the Torok Formation (structural zone IV)------ - -- - - - - - - - -- - - In pocket FIGURE66. Index map showing location of Killik-Itkillik region and the physiographic provinces of northern Alaska- - - - - - - - 410 67. North front of mountains at the head of Cobblestone Creek.............................. 414 68. View of foothills and north front of Brooks Range, looking southwestward from near junction of Castle Creek and Kiruktagiak River---------_----_-------------------- 415 69. View eastward along southern margin of the belt of the Fortress Mountain Formation ...................... 416 70. Gently dipping conglomerate and sandstone ledges of the Chandler Formation along the axis of Arc Mountain 71. Correlated columnar sections, upper part of the Lisburne Group .......................................... 420 72. Correlated columnar sections of the Siksikpuk Formation ................................... 429 73. Exposure of the Shublik Formation on Monotis Creek ------------------------------_-----..-------------431 74. Correlated columnar sections of the Shublik Formation ................................................. 433 75. Columnar sections of the Tiglukpuk Formation .......................................................... 441 76. Columnar sections of the Okpikruak Formation ...............................
Load more

Recommended publications
  • Canmore Nordic Centre Provincial Park Nordic Centre Area
    Tear Sheet Canmore Nordic Centre Provincial Park March 2020 Mount Nordic Centre Area Map Canmore Lady MacDonald Bow Valley Wildland Nordic Centre Cougar Creek Canmore Canmore Nordic Centre Horseshoe 19.3 km Day Lodge Loop to Banff 1 To Banff Grotto Grassi Lakes 19.2 km Mountain Lake Louise Alpine Club (2706 m) Grassi Lakes of Canada Quarry 80 km Lake 742 Powerline Grotto Pond Grotto Canyon 1A 1A Whiteman’s Highline Pond Trail East Connector Goat Creek Ha Ling Peak (2407 m) Gap Lake 0.9 km Ha Ling 1 Lac High Peak Bow 1 Des Arcs Highline River Gap Rockies Trail Lake Old Camp Lac Des Arcs Three Sisters To Calgary, Hwy 40 & Kananaskis Country Banff Gate Bow Valley Wildland Mountain Resort Heart Mountain (2135 m) 7 km 742 Little Sister (2694 m) Pigeon Mountain (2394 m) High Middle Sister (2769 m) Rockies Windy Point (Closed Dec. 1 - June 15) Bow Valley Wildland Big Sister (2936 m) Goat Pond Smith-Dorrien/ Spray Lakes Road 7.3 km Skogan Pass Spray 742 Lakes West Centennial Ridge Wind West Driftwood (Closed April 1 - June 21) Pass Mount Windtower (2695 m) Spurling Creek Mount Collembola High (2758 m) Banff Rockies Mount National Park Spray Valley Lougheed (3105 m) Mount Allan (2819 m) 10.4 km Wind Mountain (3153 m) Boat Hiking Trail Launch Evan-Thomas Backcountry Parking Camping Bow Valley Wildland Centennial Bicycle Trail Information Sparrowhawk Ridge Camping Interpretive Area Trail Mount Sparrowhawk (3121 m) Cross-Country Snowshoeing Skiing Day Use Sleeping Mount Nestor Area Shelter (2974 m) Spray Lake Fishing Viewpoint Provincial Easy Trail 742 Ribbon Park Ribbon Peak Creek Provincial Park Intermediate Trail (2880 m) (Day Use) Difcult Trail Spray High Rockies Provincial Road (Closed Nov.
    [Show full text]
  • Stratigraphy and General Geology of Jke Mccarthy C-5 Quadrangle; Alaska
    Stratigraphy and General Geology of jke McCarthy C-5 Quadrangle; Alaska By E. M. MAcKEVETT, JR. Descriptions of the rocks of a quadrangle famous for its copper mines UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1971 UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY William T. Pecora, Director Library of Congress catalog-card No. 79-609946 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 - Price 30 cents (paper cover) CONTENTS Page Abstract . .....-.. .... ........_.. .. .. .. .. .. .. 1 Introduction ...-. ..... .... .... .. .. ... .. ._. 1 Geology -. ... _. __ .._____ _ . _ __.. _ __. ____. 4 General summary, regional setting, and structure......................... __...... 4 Stratigraphy and lithology . ... __. _ . 8 Hasen Creek Formation .. .. _ . ._.. 8 Nikolai Greenstone ..__ ......_ . _ 8 Chitistone Limestone ... .... ._ . __ _... _ _ _ . 10 Nizina Limestone . .... _ .. .._._ _..._ . _. 11 McCarthy Formation ._ . ... 13 Lower member ...... _...__. __ _ . ._ . _ ._ 13 Upper member . _ .. __. _ .. 14 Lubbe Creek Formation _. __ .. 15 Nizina Mountain Formation .. _ . _-- . .. 16 Root Glacier Formation . __. ._.. ..__ . .. 17 Kennicott Formation .. .__. _. ___ ___. _ ' ._ 19 Schulze Formation ..._... ___ __.. 20 Moonshine Creek Formation _.. ... _ 20 Frederika Formation .. _. .. _. _. 21 Intrusive rocks . .. _. .._... .. 23 Andesitic dikes and sills. ......................... ,.._ . .................. 23 Intermediate rocks ......................................-.......-..^.....................-.
    [Show full text]
  • 12. Lower Cretaceous Ammonites from the South Atlantic Leg 40 (Dsdp), Their Stratigraphic Value and Sedimentologic Properties
    12. LOWER CRETACEOUS AMMONITES FROM THE SOUTH ATLANTIC LEG 40 (DSDP), THEIR STRATIGRAPHIC VALUE AND SEDIMENTOLOGIC PROPERTIES Jost Wiedmann and Joachim Neugebauer, Geol.-palaont. Institut der Universitat Tubingen, BRD ABSTRACT Eleven ammonites have been cored during Leg 40. They were found concentrated in the lower parts of the drilled section at Sites 363 (Walvis Ridge) and 364 (Angola Basin), and permit recognition of upper Albian, middle Albian, and upper Aptian. So far, no lower Albian could be recognized. A high ammonite density can be assumed for the South Atlantic Mid-Cretaceous. In contrast to data available so far, the Walvis Ridge associations consisting of phylloceratids and desmoceratids show more open- basin relationships than those of the Angola Basin, which are composed of mortoniceratids, desmoceratids, and heteromorphs. Paleobiogeographically, the South Atlantic fauna can be related to the well-known onshore faunas of Angola, South Africa, and Madagascar as well as to the European Mid-Cretaceous. This means that the opening of the South Atlantic and its connection with the North Atlantic occurred earlier as was generally presumed, i.e., in the middle Albian. Records of lower Aptian ammonite faunas from Gabon and Brazil remain doubtful. High rates of sedimentation prevailed especially in the Aptian and Albian, in connection with the early deepening of the South Atlantic basins. The mode of preservation of the ammonites suggests that they were deposited on the outer shelf or on the upper continental slope and were predominantly buried under sediments of slightly reducing conditions. In spite of a certain variability of the depositional environment, the ammonites show a uniform and particular mode of preservation.
    [Show full text]
  • Geological Survey Canada
    1-32 GEOLOGICAL PAPER 70-32 SURVEY OF CANADA DEPARTMENT OF ENERGY, MINES AND RESOURCES BROCK RIVER MAP-AREA, DISTRICT OF MACKENZIE (97 D) (Report, 6 figures, 2 tables and P.S. Map 13-1970) H. R. Balkwill and C. J. Yorath Price, $2.00 1970 GEOLOGICAL SURVEY OF CANADA CANADA PAPER 70-32 BROCK RIVER MAP-AREA, DISTRICT OF MACKENZIE (97 D) H. R. Balkwill and C. J. Yorath DEPARTMENT OF ENERGY, MINES AND RESOURCES @)Crown Copyrights reserved Available by mail from Information Canada, Ottawa from the Geological Survey of Canada 601 Booth St., Ottawa and Information Canada bookshops in HALIFAX - 1735 Barrington Street MONTREAL - 1182 St. Catherine Street West OTTAWA - 171 Slater Street TORONTO - 221 Yonge Street WINNIPEG - 499 Portage Avenue VANCOUVER - 657 Granville Street or through your bookseller Price: $2.00 Catalogue No. M:44-70-32 Price subject to change without notice Information Canada Ottawa 1971 - iii - CONTENTS Page Abstract.............................. ...... ................ ... ....... v Introduction . 1 Physiography . 1 Stratigraphy . 5 Proterozoic.............. 8 Shaler Group . • . 8 Diabase sills and dykes . 11 Age and correlation of Proterozoic rocks . 11 Paleozoic . 12 Old Fort Island Formation . 12 Mount Cap Formation . .. 13 Saline River Formation . 15 'Ronning Group' . 15 Bear Rock Formation . 16 Cretaceous . 17 •Silty zone' . 18 1Benton°itic zone' . 18 Age and correlation of Cretaceous rocks . 18 Quaternary . 19 Structural Geology...... 19 Coppermine Arch . 19 Horton Plain and Wollaston structural basin . 20 Structural control of topography . 21 Economic Geology ..................... ........................ ·. 21 Addendum . 22 References 23 Illustrations Map 13- 1970: Geology, Brock River area (97D), District of Mackenzie ..... in pocket Table 1. Table of map-units .
    [Show full text]
  • The Cretaceous of North Greenland
    ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Zitteliana - Abhandlungen der Bayerischen Staatssammlung für Paläontologie und Histor. Geologie Jahr/Year: 1982 Band/Volume: 10 Autor(en)/Author(s): Birkelund Tove, Hakansson Eckhart Artikel/Article: The Cretaceous of North Greenland - a stratigraphic and biogeographical analysis 7-25 © Biodiversity Heritage Library, http://www.biodiversitylibrary.org/; www.zobodat.at 7 Zitteliana 10 7-25 München, 1. Juli 1983 ISSN 0373-9627 The Cretaceous of North Greenland - a stratigraphic and biogeographical analysis By TOVE BIRKELUND & ECKART HÄKANSSON*) With 6 text figures and 3 plates ABSTRACT Mapping of the Wandel Sea Basin (81-84°N) has revealed realites, Peregrinoceras, Neotollia, Polyptycbites, Astieripty- an unusually complete Late Jurassic to Cretaceous sequence chites) are Boreal and Sub-Boreal, related to forms primarily in the extreme Arctic. The Cretaceous pan of the sequence in­ known from circum-arctic regions (Sverdrup Basin, Svalbard, cludes marine Ryazanian, Valanginian, Aptian, Albian, Tu­ Northern and Western Siberia), but they also have affinities to ranian and Coniacian deposits, as well as outliers of marine occurrences as far south as Transcaspia. The Early Albian Santonian in a major fault zone (the Harder Fjord Fault Zone) contains a mixing of forms belonging to different faunal pro­ west of the main basin. Non-marine PHauterivian-Barremian vinces (e. g. Freboldiceras, Leymeriella, Arctboplites), linking and Late Cretaceous deposits are also present in addition to North Pacific, Atlantic, Boreal/Russian platform and Trans­ Late Cretaceous volcanics. caspian faunas nicely together. Endemic Turonian-Coniacian Scapbites faunas represent new forms related to European An integrated dinoflagellate-ammonite-5«c/;D stratigra­ species.
    [Show full text]
  • ~ Coal Mining in Canada: a Historical and Comparative Overview
    ~ Coal Mining in Canada: A Historical and Comparative Overview Delphin A. Muise Robert G. McIntosh Transformation Series Collection Transformation "Transformation," an occasional paper series pub- La collection Transformation, publication en st~~rie du lished by the Collection and Research Branch of the Musee national des sciences et de la technologic parais- National Museum of Science and Technology, is intended sant irregulierement, a pour but de faire connaitre, le to make current research available as quickly and inex- plus vite possible et au moindre cout, les recherches en pensively as possible. The series presents original cours dans certains secteurs. Elle prend la forme de research on science and technology history and issues monographies ou de recueils de courtes etudes accep- in Canada through refereed monographs or collections tes par un comite d'experts et s'alignant sur le thenne cen- of shorter studies, consistent with the Corporate frame- tral de la Societe, v La transformation du CanadaLo . Elle work, "The Transformation of Canada," and curatorial presente les travaux de recherche originaux en histoire subject priorities in agricultural and forestry, communi- des sciences et de la technologic au Canada et, ques- cations and space, transportation, industry, physical tions connexes realises en fonction des priorites de la sciences and energy. Division de la conservation, dans les secteurs de: l'agri- The Transformation series provides access to research culture et des forets, des communications et de 1'cspace, undertaken by staff curators and researchers for develop- des transports, de 1'industrie, des sciences physiques ment of collections, exhibits and programs. Submissions et de 1'energie .
    [Show full text]
  • The Lower Cretaceous Flora of the Gates Formation from Western Canada
    The Lower Cretaceous Flora of the Gates Formation from Western Canada A Shesis Submitted to the College of Graduate Studies and Research in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in the Department of Geological Sciences Univ. of Saska., Saskatoon?SI(, Canada S7N 3E2 b~ Zhihui Wan @ Copyright Zhihui Mian, 1996. Al1 rights reserved. National Library Bibliothèque nationale 1*1 of Canada du Canada Acquisitions and Acquisitions et Bibliographic Services services bibliographiques 395 Wellington Street 395. rue Wellington Ottawa ON KlA ON4 Ottawa ON K1A ON4 Canada Canada The author has granted a non- L'auteur a accordé une licence non exclusive licence allowing the exclusive permettant à la National Libraxy of Canada to Bibliothèque nationale du Canada de reproduce, loan, distribute or sell reproduire, prêter, distribuer ou copies of this thesis in microfom, vendre des copies de cette thèse sous paper or electronic formats. la fome de microfiche/nlm, de reproduction sur papier ou sur foxmat électronique. The author retains ownership of the L'auteur conserve la propriété du copyright in this thesis. Neither the droit d'auteur qui protège cette thèse. thesis nor substantial extracts fiom it Ni la thèse ni des extraits substantiels may be printed or otherwise de celle-ci ne doivent être imprimés reproduced without the author's ou autrement reproduits sans son permission. autorisation. College of Graduate Studies and Research SUMMARY OF DISSERTATION Submitted in partial fulfillment of the requirernents for the DEGREE OF DOCTOR OF PHILOSOPHY ZHIRUI WAN Depart ment of Geological Sciences University of Saskatchewan Examining Commit tee: Dr.
    [Show full text]
  • Summits on the Air – ARM for Canada (Alberta – VE6) Summits on the Air
    Summits on the Air – ARM for Canada (Alberta – VE6) Summits on the Air Canada (Alberta – VE6/VA6) Association Reference Manual (ARM) Document Reference S87.1 Issue number 2.2 Date of issue 1st August 2016 Participation start date 1st October 2012 Authorised Association Manager Walker McBryde VA6MCB 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 Page 1 of 63 Document S87.1 v2.2 Summits on the Air – ARM for Canada (Alberta – VE6) 1 Change Control ............................................................................................................................. 4 2 Association Reference Data ..................................................................................................... 7 2.1 Programme derivation ..................................................................................................................... 8 2.2 General information .......................................................................................................................... 8 2.3 Rights of way and access issues ..................................................................................................... 9 2.4 Maps and navigation .......................................................................................................................... 9 2.5 Safety considerations ..................................................................................................................
    [Show full text]
  • Problems in the Identity of "Crioceras" Barremense KILIAN, 1895 (Ancyloceratida, Late Barremian), and Their Proposed Resolution
    Carnets de Géologie / Notebooks on Geology - Article 2010/01 (CG2010_A01) Problems in the identity of "Crioceras" barremense KILIAN, 1895 (Ancyloceratida, Late Barremian), and their proposed resolution 1 Didier BERT * 2 Robert BUSNARDO 3 Gérard DELANOY 4 Stéphane BERSAC Abstract: The study of "Crioceras" barremense KILIAN was undertaken as a part of the revision of the Hemihoplitidae. This species was considered "classic" and has been used as the index of an Upper Barremian subzone; this usage raises a number of problems. The type specimen from Tyrol was a fragment described and illustrated by UHLIG as Crioceras sp. ind. aff. roemeri. This specimen could not be retrieved, and a topotype could not be collected. Our study revealed that there is both a biostratigraphic hiatus and important differences between conceptions of this species: (1) that ascribed UHLIG's type specimen (Upper Barremian, Tyrol), (2) KILIAN's concept of the specimen he found and named "Crioceras" barremense (probably a Camereiceras from the uppermost levels of the Vandenheckei Subzone or from the basal Sartousiana subzone of the Nauvin site, southeastern France) and (3) current interpretations of authors, who often synonymize the type specimen with Gassendiceras alpinum (d'ORBIGNY), which occurs in the middle of the Vandenheckei Subzone. So there is a real confusion concerning the synonymy of "Crioceras" barremense. The age of UHLIG's type specimen is too imprecise and its preservation too fragmentary to be reliably identifiable, because the same morphology and ornamentation exist in several species of other genera. Therefore, we recommend the use of the species "Crioceras" barremense KILIAN be avoided, in particular as an index, along with that of the genus Barrancyloceras VERMEULEN for which "C." barremense is used as reference.
    [Show full text]
  • The Barremian Heteromorph Ammonite Dissimilites from Northern Italy: Taxonomy and Evolutionary Implications
    The Barremian heteromorph ammonite Dissimilites from northern Italy: Taxonomy and evolutionary implications ALEXANDER LUKENEDER and SUSANNE LUKENEDER Lukeneder, A. and Lukeneder, S. 2014. The Barremian heteromorph ammonite Dissimilites from northern Italy: Taxon- omy and evolutionary implications. Acta Palaeontologica Polonica 59 (3): 663–680. A new acrioceratid ammonite, Dissimilites intermedius sp. nov., from the Barremian (Lower Cretaceous) of the Puez area (Dolomites, northern Italy) is described. Dissimilites intermedius sp. nov. is an intermediate form between D. dissimilis and D. trinodosum. The new species combines the ribbing style of D. dissimilis (bifurcating with intercalating single ribs) with the tuberculation style of D. trinodosum (trituberculation on entire shell). The shallow-helical spire, entirely comprising single ribs intercalated by trituberculated main ribs, is similar to the one of the assumed ancestor Acrioceras, whereas the increasing curvation of the younger forms resembles similar patterns observed in the descendant Toxoc- eratoides. These characters support the hypothesis of a direct evolutionary lineage from Acrioceras via Dissimilites to Toxoceratoides. D. intermedius sp. nov. ranges from the upper Lower Barremian (Moutoniceras moutonianum Zone) to the lower Upper Barremian (Toxancyloceras vandenheckii Zone). The new species allows to better understand the evolu- tion of the genus Dissimilites. The genus appears within the Nicklesia pulchella Zone represented by D. duboise, which most likely evolved into D. dissimilis. In the Kotetishvilia compressissima Zone, two morphological forms developed: smaller forms very similar to Acrioceras and forms with very long shaft and juvenile spire like in D. intermedius sp. nov. The latter most likely gave rise to D. subalternatus and D. trinodosum in the M.
    [Show full text]
  • GB (1990) 20 (5) Pp. 45-77 (Ivanov and Stoykova).Pdf
    GEOLOGICA BALCANICA, 20. 5, Sofia, Oct. 1990, p. 45-71. CTpaTHrpa¢HH anTCKOro H anb6CKoro HpycoB B ueHTpanbHOH '-laCTH MH3HHCKOH nnaT¢opMbi Mapwt Hea/-106, KpucmaAuHa Cmoi1Ko6a reo;IO?II'leCnllii 111/Ctnllmym Eo.uapcKOU aKai)e,\fliU nayn, 1113 Cor/iwt ( Jlpun.•tma On!t ony6nuKorJai/UII 19 U/011.'1 1989 ? ) M. 1l'anov, K. Stoykova - Stratigraphy of Aptian and Albian Stages in the central part of Moesia11 P/utfor111e. Aptian Stage is widespread in the Central North Bulgaria, while the Albian is established only in the northern regions. The Aptian se<.:tions are built up of sediments of the Trambes and Svistov Formations. It has been es­ tablished that the Triimbes and Svistov Formation join laterally along the line Svi stov-Tatari- Osil m. The concretion phosphorites and sandstones, within the range of Albian, are here separated as Dekov Formations. The lithologic and ammonitic sequences in 9 sections are studied and described. Aptian Stage is represented by the Middlt: (Gargasian) and Upper (Clansayesian) Substages. The following ammonitic zones are separated and characterized: Cheloniceras ( Epicheloniceras) martinioides Zone, C. ( E. ) subnodosocostatum Zone, Acuntho­ hoplites no/alii Zone, Hypacanthoplites ;acobi Zone. Aptian is covered with a wash-out by Albian. The inter­ ruption of the sedimentation includes Late Aptian (partially), Early and Middle Albian (partially) Substages. Albian Stage is represented by the Middle (partially) and Upper Albian Substages. The following zones are esta­ blished and characterized: Hoplites ( Hoplites) dematus Zone, Euhoplites loricatus Zone, Euhoplites /aut us Zone, J'yfortoniceras ( Pervinquieriu) inflatum Zone, Stoliczkaia dispar Zone. In some sections the separation of the first four zones is impossible due to the strong condensation in their basement.
    [Show full text]
  • Albian Ammonites from Northern Pakistan
    DE DE GRUYTER Acta Geologica Polonica, Vol. 64 (2014), No. 1, pp. 47–98 OPEN DOI: 10.2478/agp-2014-0003 G Albian ammonites from northern Pakistan WILLIAM JAMES KENNEDY1 AND ALI N. FATMI2 1Oxford University Museum of Natural History, Parks Road, Oxford OX1 3W and Department of Earth Sciences, Parks Road, Oxford OX1 3AN, United Kingdom. E-mail: [email protected] 2Formerly of the Geological Survey of Pakistan, Quetta, Pakistan (Dr Fatmi died on 27 March 2012) ABSTRACT: Kennedy, W.J. and Fatmi, A.N. 2014. Albian ammonites from northern Pakistan. Acta Geologica Polonica, 64 (1), 47–98. Warszawa. The occurrence of rich Albian ammonite faunas in what is now northern Pakistan has been known for more than 80 years, but there has been no comprehensive account of the assemblages present. A total of 36 taxa are described below. The middle part of the Lumshiwal Formation yields Upper Aptian ammonites south of the Samana Range. Elsewhere, it yields Douvilleiceras leightonense Casey, 1962, of the lower Lower Albian Leymeriella reg- ularis Zone and the Sonneratia perinflata and S. kitchini Subzones of the Sonneratia chalensis Zone of the north- west European sequence. The top one to two metres of the Lumshiwal yields an abundant fauna of rolled and phos- phatised ammonites that includes elements from much of the Albian. Of these, Prolyelliceras gevreyi (Jacob, 1907) first appears in the lower Lower Albian Leymeriella tardefurcata Zone. The commonest ammonite is Douville- iceras mammillatum (Schlotheim, 1813) sensu lato, which ranges from the perinflata Subzone of the chalensis Zone to the Otohoplites bulliensis Subzone of the O.
    [Show full text]