Chapter 7 Plate 2 (Pdf)

Total Page:16

File Type:pdf, Size:1020Kb

Chapter 7 Plate 2 (Pdf) U.S. DEPARTMENT OF THE INTERIOR DIGITAL DATA SERIES DDS–69–B U.S. GEOLOGICAL SURVEY CHAPTER 7, PLATE 2 NORTH TIME THEM AMERICAN SERIES STAGE (m.y.b.p.) provincial units UINTA BASIN DOUGLAS CREEK ARCH PICEANCE BASIN WHITE RIVER UPLIFT SYSTEM ERA 26 28 30 33 38 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 27 29 31 32 34 35 36 37 39 40 41 42 43 Pliocene 0 y nar U M Quater Miocene L ARIKAREEAN 25 U CHATTIAN Duchesne 25 Y WHITNEYAN River ORELLAN and Uinta Oligo- cene RUPELIAN L Formations Tongue of TIAR CHADRONIAN Uinta Formation Tongue of U PRIABONIAN Tongue of DUCHESNEAN Uinta Formation Top of Mahogany Douglas Creek Uinta Formation CENOZOIC TER BARTONIAN UINTAN oil-shale zone Member M Green River Formation Anvil Points LUTETIAN BRIDGERIAN Green Member Riv Parachute Creek and Garden Gulch Members Eocene WASATCHIAN 50 Wasatch er F 50 L YPRESIAN ormation Cow Ridge Member Wasatch Green River Formation CLARKFORKIAN and Wasatch Base of Long Point Bed Formation Emery Sandstone Formation U THANETIAN TIFFANIAN North Horn Rollins Member of main body Formations Fort or Trout aleo- TORREJONIAN L of Mancos Group Mount Garfield P cene DANIAN Union Creek PUERCAN Flagstaff Member of the and Hunter Canyon Formation Sandstone Green River Formation MAASTRICHTIAN Formations Members Williams Fork Formation Blackhawk Castlegate Iles Price River Formation 75 Tuscher, Farrer, and Neslen Formations Sego Sandstone Formation CAMPANIAN Formation Sandstone Buck Tongue of main body 75 Upper Main body Mancos body of Kellogg (1977) Castlegate Sandstone Mancos Group Main body SANTONIAN of Mancos ? Mancos CONIACIAN Group TURONIAN Group Frontier Formation Frontier Formation Mowry Shale Mowry Shale CENOMANIAN Dakota Sandstone Dakota Sandstone 100 100 CEOUS ALBIAN A Cedar Mountain Formation Cedar Mountain Formation CRET APTIAN Lower BARREMIAN 125 125 HAUTERIVIAN VALANGINIAN BERRIASIAN PORTLANDIAN Morrison Morrison Formation Formation Pine Butte Upper KIMMERIDGIAN 150 Redwater Member Member of 150 of Stump Formation Sundance Formation OXFORDIAN Curtis Member of Stump Formation CALLOVIAN Entrada Sandstone Preuss BATHONIAN Twin Creek Carmel M E S O Z I C Middle Sandstone Limestone Formation 175 175 JURASSIC BAJOCIAN TOARCIAN PLIENSBACHIAN Glen Canyon Sandstone Lower Glen Canyon Sandstone SINEMURIAN 200 200 HETTANGIAN RHAETIAN Chinle Formation Upper Chinle Formation NORIAN 225 CARNIAN 225 LADINIAN TRIASSIC Middle ANISIAN Thaynes Limestone Ankareh Formation Lower SCYTHIAN Moenkopi Formation 250 Woodside Formation 250 TATARIAN OCHOAN State Bridge Formation Upper KAZANIAN Park City and GUADALUPIAN Phosphoria Formations KUNGURIAN ARTINSKIAN LEONARDIAN 275 275 PERMIAN Lower SAKMARIAN WOLFCAMPIAN Weber ASSELIAN Weber Sandstone Sandstone VIRGILIAN Maroon Formation Upper STEPHANIAN 300 MISSOURIAN 300 ANIAN V DESMOINESIAN Middle WESTPHALIAN Minturn ATOKAN Morgan Formation Formation Morgan Morgan Formation Formation ? Belden Round Valley Limestone PENNSYL Lower MORROWAN ? Shale NAMURIAN 325 325 CHESTERIAN Doughnut Formation Upper Humbug Formation MERAMECIAN VISEAN Madison Limestone Madison Leadville OSAGEAN 350 Lower Limestone Limestone 350 MISSISSIPPIAN TOURNAISIAN KINDERHOOKIAN FAMENNIAN Chaffee Group Upper FRASNIAN 375 375 GIVETIAN Middle ONIAN EIFELIAN DEV EMSIAN PRAGHIAN Lower 400 400 LOCHKOVIAN PRIDOLIAN Upper LUDLOVIAN WENLOCKIAN 425 425 Lower SILURIAN P A L E O Z I C LLANDOVERIAN RICHMONDIAN ASHGILLIAN MAYSVILLIAN Upper TIAN 450 CINCIN- NA EDENIAN 450 CARADOCIAN TRENTONIAN BLACKRIVERIAN LLANDEILIAN CHAZYAN VICIAN Middle LLANVIRNIAN CHAMPLAINIAN WHITEROCKIAN 475 475 ORDO ARENIGIAN Lower CANADIAN TREMADOCIAN 500 500 TREMPEALEAUAN DOLGELLIAN FRANCONIAN Upper FESTINIOGIAN Sawatch Ophir Formation DRESBACHIAN Sandstone MAENTWROGIAN and Lynch Dolomite 525 525 MENEVIAN Lodore Formation Middle SOLVAN 550 550 LENAN CAMBRIAN ATDABANIAN Lower 575 575 TOMMOTIAN EXPLANATION Marine carbonate rock and (or) chert and (or) phosphate; 10 0 10 20 30 40 50 Miles Key marker horizon or contact between different lithologies minor clastic and evaporitic rock or different formations—For the Tertiary section some contacts shown are for different lithologic units, which Marine siltstone and shale; minor sandstone and carbonate are lumped on this cross section but subdivided in and (or) evaporitic rock Johnson (1989) Marginal-marine to marine-mixed carbonate, clastic, and Approximate boundary of stratigraphic nomenclature evaporitic rock between correlative rocks of similar lithologies Marine and marginal-marine sandstone; minor mudstone Unconformity Intertonguing stratigraphic contact or facies change Mainly alluvial clastic rock; minor lacustrine and eolian clastic rock Eolian sandstone Marginal-lacustrine clastic and carbonate rock Lacustrine shale and carbonate rock; minor sandstone and evaporitic rock Chapter 7 TIME-STRATIGRAPHIC CROSS SECTION OF TERTIARY THROUGH CAMBRIAN ROCKS IN THE UINTA AND PICEANCE BASINS, UTAH AND COLORADO [Locations of wells 1–43 shown on plate 1].
Recommended publications
  • South Dakota to Nebraska
    Geological Society of America Special Paper 325 1998 Lithostratigraphic revision and correlation of the lower part of the White River Group: South Dakota to Nebraska Dennis O. Terry, Jr. Department of Geology, University of Nebraska—Lincoln, Lincoln, Nebraska 68588-0340 ABSTRACT Lithologic correlations between type areas of the White River Group in Nebraska and South Dakota have resulted in a revised lithostratigraphy for the lower part of the White River Group. The following pedostratigraphic and lithostratigraphic units, from oldest to youngest, are newly recognized in northwestern Nebraska and can be correlated with units in the Big Badlands of South Dakota: the Yellow Mounds Pale- osol Equivalent, Interior and Weta Paleosol Equivalents, Chamberlain Pass Forma- tion, and Peanut Peak Member of the Chadron Formation. The term “Interior Paleosol Complex,” used for the brightly colored zone at the base of the White River Group in northwestern Nebraska, is abandoned in favor of a two-part division. The lower part is related to the Yellow Mounds Paleosol Series of South Dakota and rep- resents the pedogenically modified Cretaceous Pierre Shale. The upper part is com- posed of the unconformably overlying, pedogenically modified overbank mudstone facies of the Chamberlain Pass Formation (which contains the Interior and Weta Paleosol Series in South Dakota). Greenish-white channel sandstones at the base of the Chadron Formation in Nebraska (previously correlated to the Ahearn Member of the Chadron Formation in South Dakota) herein are correlated to the channel sand- stone facies of the Chamberlain Pass Formation in South Dakota. The Chamberlain Pass Formation is unconformably overlain by the Chadron Formation in South Dakota and Nebraska.
    [Show full text]
  • Paleoenvironment of the Late Eocene Chadronian-Age Whitehead Creek Locality (Northwestern Nebraska)
    St. Cloud State University theRepository at St. Cloud State Culminating Projects in Cultural Resource Management Department of Anthropology 10-2019 Paleoenvironment of the Late Eocene Chadronian-Age Whitehead Creek Locality (Northwestern Nebraska) Samantha Mills Follow this and additional works at: https://repository.stcloudstate.edu/crm_etds Part of the Archaeological Anthropology Commons Recommended Citation Mills, Samantha, "Paleoenvironment of the Late Eocene Chadronian-Age Whitehead Creek Locality (Northwestern Nebraska)" (2019). Culminating Projects in Cultural Resource Management. 28. https://repository.stcloudstate.edu/crm_etds/28 This Thesis is brought to you for free and open access by the Department of Anthropology at theRepository at St. Cloud State. It has been accepted for inclusion in Culminating Projects in Cultural Resource Management by an authorized administrator of theRepository at St. Cloud State. For more information, please contact [email protected]. Paleoenvironment of the Late Eocene Chadronian-Age Whitehead Creek Locality (Northwestern Nebraska) by Samantha M. Mills A Thesis Submitted to the Graduate Faculty of St. Cloud State University in Partial Fulfillment of the Requirements for the Degree of Master of Science in Functional Morphology October, 2019 Thesis Committee: Matthew Tornow, Chairperson Mark Muñiz Bill Cook Tafline Arbor 2 Abstract Toward the end of the Middle Eocene (40-37mya), the environment started to decline on a global scale. It was becoming more arid, the tropical forests were disappearing from the northern latitudes, and there was an increase in seasonality. Research of the Chadronian (37- 33.7mya) in the Great Plains region of North America has documented the persistence of several mammalian taxa (e.g. primates) that are extinct in other parts of North America.
    [Show full text]
  • Cyclicity, Dune Migration, and Wind Velocity in Lower Permian Eolian Strata, Manitou Springs, CO
    Cyclicity, Dune Migration, and Wind Velocity in Lower Permian Eolian Strata, Manitou Springs, CO by James Daniel Pike, B.S. A Thesis In Geology Submitted to the Graduate Faculty of Texas Tech University in Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCES Approved Dustin E. Sweet Chair of Committee Tom M. Lehman Jeffery A. Lee Mark Sheridan Dean of the Graduate School August, 2017 Copyright 2017, James D. Pike Texas Tech University, James Daniel Pike, August 2017 ACKNOWLEDGMENTS I would like to extend my greatest thanks to my advisor Dr. Dustin Sweet, who was an excellent advisor during this research. Dr. Sweet was vital throughout the whole process, be it answering questions, giving feedback on figures, and imparting his extensive knowledge of the ancestral Rocky Mountains on me; for this I am extremely grateful. Dr. Sweet allowed me to conduct my own research without looking over my shoulder, but was always available when needed. When I needed a push, Dr. Sweet provided it. I would like to thank my committee memebers, Dr. Lee and Dr. Lehman for providing feedback and for their unique perspectives. I would like to thank Jenna Hessert, Trent Jackson, and Khaled Chowdhury for acting as my field assistants. Their help in taking measurements, collecting samples, recording GPS coordinates, and providing unique perspectives was invaluable. Thank you to Melanie Barnes for allowing me to use her lab, and putting up with the mess I made. This research was made possible by a grant provided by the Colorado Scientific Society, and a scholarship provided by East Texas Geological Society.
    [Show full text]
  • Palaeogene Marine Stratigraphy in China
    LETHAIA REVIEW Palaeogene marine stratigraphy in China XIAOQIAO WAN, TIAN JIANG, YIYI ZHANG, DANGPENG XI AND GUOBIAO LI Wan, X., Jiang, T., Zhang, Y., Xi, D. & Li G. 2014: Palaeogene marine stratigraphy in China. Lethaia, Vol. 47, pp. 297–308. Palaeogene deposits are widespread in China and are potential sequences for locating stage boundaries. Most strata are non-marine origin, but marine sediments are well exposed in Tibet, the Tarim Basin of Xinjiang, and the continental margin of East China Sea. Among them, the Tibetan Tethys can be recognized as a dominant marine area, including the Indian-margin strata of the northern Tethys Himalaya and Asian- margin strata of the Gangdese forearc basin. Continuous sequences are preserved in the Gamba–Tingri Basin of the north margin of the Indian Plate, where the Palaeogene sequence is divided into the Jidula, Zongpu, Zhepure and Zongpubei formations. Here, the marine sequence ranges from Danian to middle Priabonian (66–35 ma), and the stage boundaries are identified mostly by larger foraminiferal assemblages. The Paleocene/Eocene boundary is found between the Zongpu and Zhepure forma- tions. The uppermost marine beds are from the top of the Zongpubei Formation (~35 ma), marking the end of Indian and Asian collision. In addition, the marine beds crop out along both sides of the Yarlong Zangbo Suture, where they show a deeper marine facies, yielding rich radiolarian fossils of Paleocene and Eocene. The Tarim Basin of Xinjiang is another important area of marine deposition. Here, marine Palae- ogene strata are well exposed in the Southwest Tarim Depression and Kuqa Depres- sion.
    [Show full text]
  • Distribution of Elements in Sedimentary Rocks of the Colorado Plateau a Preliminary Report
    Distribution of Elements in Sedimentary Rocks of the Colorado Plateau A Preliminary Report GEOLOGICAL SURVEY BULLETIN 1107-F Prepared on behalf of the U.S. Atomic Energy Commission Distribution of Elements in Sedimentary Rocks of the Colorado Plateau A Preliminary Report By WILLIAM L. NEWMAN CONTRIBUTIONS TO THE GEOLOGY OF URANIUM GEOLOGICAL SURVEY BULLETIN 1107-F Prepared on behalf of the U.S. Atomic Energy Commission UNITED STATES GOVERNMENT PRINTING OFFICE. WASHINGTON : 1962 UNITED STATES DEPARTMENT OF THE INTERIOR STEWART L. UDALL, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director For sale by the Superintendent of Documents, U.S. Government Printing Office Washington 25, D.G. CONTENTS Page Abstract____________________________-__-__-_---_-___-___ 337 Introduction ______________________________________________________ 339 Physical features of sedimentary rocks------_--__----_------------__- 339 Precambrian sedimentary rocks.________________________________ 341 Cambrian system____________________________________________ 342 Ordovician system..___________________________________________ 344 Devonian system._____________________________________________ 344 Mississippian system.._________________________________________ 346 Pennsylvanian system________________________________________ 346 Permian system _______________________________________________ 349 Triassic system______________________________________________ 352 Moenkopi formation _______________________________________ 352 Chinle formation..._______________________________________
    [Show full text]
  • Lower Jurassic to Lower Middle Jurassic Succession at Kopy Sołtysie and Płaczliwa Skała in the Eastern Tatra Mts (Western
    Volumina Jurassica, 2013, Xi: 19–58 Lower Jurassic to lower Middle Jurassic succession at Kopy Sołtysie and Płaczliwa Skała in the eastern Tatra Mts (Western Carpathians) of Poland and Slovakia: stratigraphy, facies and ammonites Jolanta IWAŃCZUK1, Andrzej IWANOW1, Andrzej WIERZBOWSKI1 Key words: stratigraphy, Lower to Middle Jurassic, ammonites, microfacies, correlations, Tatra Mts, Western Carpathians. Abstract. The Lower Jurassic and the lower part of the Middle Jurassic deposits corresponding to the Sołtysia Marlstone Formation of the Lower Subtatric (Krížna) nappe in the Kopy Sołtysie mountain range of the High Tatra Mts and the Płaczliwa Skała (= Ždziarska Vidla) mountain of the Belianske Tatra Mts in the eastern part of the Tatra Mts in Poland and Slovakia are described. The work concentrates both on their lithological and facies development as well as their ammonite faunal content and their chronostratigraphy. These are basinal de- posits which show the dominant facies of the fleckenkalk-fleckenmergel type and reveal the succession of several palaeontological microfacies types from the spiculite microfacies (Sinemurian–Lower Pliensbachian, but locally also in the Bajocian), up to the radiolarian microfacies (Upper Pliensbachian and Toarcian, Bajocian–Bathonian), and locally the Bositra (filament) microfacies (Bajocian– Bathonian). In addition, there appear intercalations of detrital deposits – both bioclastic limestones and breccias – formed by downslope transport from elevated areas (junction of the Sinemurian and Pliensbachian, Upper Toarcian, and Bajocian). The uppermost Toarcian – lowermost Bajocian interval is represented by marly-shaly deposits with a marked admixture of siliciclastic material. The deposits are correlated with the coeval deposits of the Lower Subtatric nappe of the western part of the Tatra Mts (the Bobrowiec unit), as well as with the autochthonous-parachthonous Hightatric units, but also with those of the Czorsztyn and Niedzica successions of the Pieniny Klippen Belt, in Poland.
    [Show full text]
  • Climatic Shifts Drove Major Contractions in Avian Latitudinal Distributions Throughout the Cenozoic
    Climatic shifts drove major contractions in avian latitudinal distributions throughout the Cenozoic Erin E. Saupea,1,2, Alexander Farnsworthb, Daniel J. Luntb, Navjit Sagooc, Karen V. Phamd, and Daniel J. Fielde,1,2 aDepartment of Earth Sciences, University of Oxford, OX1 3AN Oxford, United Kingdom; bSchool of Geographical Sciences, University of Bristol, Clifton, BS8 1SS Bristol, United Kingdom; cDepartment of Meteorology, Stockholm University, 106 91 Stockholm, Sweden; dDivision of Geological and Planetary Sciences, Caltech, Pasadena, CA 91125; and eDepartment of Earth Sciences, University of Cambridge, CB2 3EQ Cambridge, United Kingdom Edited by Nils Chr. Stenseth, University of Oslo, Oslo, Norway, and approved May 7, 2019 (received for review March 8, 2019) Many higher level avian clades are restricted to Earth’s lower lati- order avian historical biogeography invariably recover strong evi- tudes, leading to historical biogeographic reconstructions favoring a dence for an origin of most modern diversity on southern land- Gondwanan origin of crown birds and numerous deep subclades. masses (2, 6, 11). However, several such “tropical-restricted” clades (TRCs) are repre- The crown bird fossil record has unique potential to reveal sented by stem-lineage fossils well outside the ranges of their clos- where different groups of birds were formerly distributed in deep est living relatives, often on northern continents. To assess the time. Fossil evidence, for example, has long indicated that total- drivers of these geographic disjunctions, we combined ecological group representatives of clades restricted to relatively narrow niche modeling, paleoclimate models, and the early Cenozoic fossil geographic regions today were formerly found in different parts of record to examine the influence of climatic change on avian geo- – graphic distributions over the last ∼56 million years.
    [Show full text]
  • Paleontology, Stratigraphy, Paleoenvironment and Paleogeography of the Seventy Tethyan Maastrichtian-Paleogene Foraminiferal Species of Anan, a Review
    Journal of Microbiology & Experimentation Review Article Open Access Paleontology, stratigraphy, paleoenvironment and paleogeography of the seventy Tethyan Maastrichtian-Paleogene foraminiferal species of Anan, a review Abstract Volume 9 Issue 3 - 2021 During the last four decades ago, seventy foraminiferal species have been erected by Haidar Salim Anan the present author, which start at 1984 by one recent agglutinated foraminiferal species Emirates Professor of Stratigraphy and Micropaleontology, Al Clavulina pseudoparisensis from Qusseir-Marsa Alam stretch, Red Sea coast of Egypt. Azhar University-Gaza, Palestine After that year tell now, one planktic foraminiferal species Plummerita haggagae was erected from Egypt (Misr), two new benthic foraminiferal genera Leroyia (with its 3 species) Correspondence: Haidar Salim Anan, Emirates Professor of and Lenticuzonaria (2 species), and another 18 agglutinated species, 3 porcelaneous, 26 Stratigraphy and Micropaleontology, Al Azhar University-Gaza, Lagenid and 18 Rotaliid species. All these species were recorded from Maastrichtian P. O. Box 1126, Palestine, Email and/or Paleogene benthic foraminiferal species. Thirty nine species of them were erected originally from Egypt (about 58 %), 17 species from the United Arab Emirates, UAE (about Received: May 06, 2021 | Published: June 25, 2021 25 %), 8 specie from Pakistan (about 11 %), 2 species from Jordan, and 1 species from each of Tunisia, France, Spain and USA. More than one species have wide paleogeographic distribution around the Northern and Southern Tethys, i.e. Bathysiphon saidi (Egypt, UAE, Hungary), Clavulina pseudoparisensis (Egypt, Saudi Arabia, Arabian Gulf), Miliammina kenawyi, Pseudoclavulina hamdani, P. hewaidyi, Saracenaria leroyi and Hemirobulina bassiounii (Egypt, UAE), Tritaxia kaminskii (Spain, UAE), Orthokarstenia nakkadyi (Egypt, Tunisia, France, Spain), Nonionella haquei (Egypt, Pakistan).
    [Show full text]
  • Subcommission on Permian Stratigraphy International
    Number 30 June 1997 A NEWSLETTER OF THE SUBCOMMISSION ON PERMIAN STRATIGRAPHY SUBCOMMISSION ON PERMIAN STRATIGRAPHY INTERNATIONAL COMMISSION ON STRATIGRAPHY INTERNATIONAL UNION OF GEOLOGICAL SCIENCES (IUGS) Table of Contents Notes from the SPS Secretary...................................................................................................................-1- Claude Spinosa Note from the SPS Chairman....................................................................................................................-2- Bruce R. Wardlaw Proposed new chronostratigraphic units for the Upper Permian ..............................................................-3- Amos Salvador Comments on Subdivisions of the Permian and a Standard World Scale ................................................-4- Neil W. Archbold and J. Mac Dickins Permian chronostratigraphic subdivisions ................................................................................................-5- Jin Yugan, Bruce R. Wardlaw, Brian F. Glenister and Galina V. Kotlyar The Permian Time-scale ...........................................................................................................................-6- J. B. Waterhouse Sequence Stratigraphy along Aidaralash Creek and the Carboniferous/Permian GSSP ..........................-8- Walter S. Snyder and Dora M. Gallegos Upper Paleozoic Fusulinacean Biostratigraphy of the Southern Urals ...................................................-11- Vladimir I. Davydov, Walter S. Snyder and Claude Spinosa Cordaitalean
    [Show full text]
  • Appendix 3.Pdf
    A Geoconservation perspective on the trace fossil record associated with the end – Ordovician mass extinction and glaciation in the Welsh Basin Item Type Thesis or dissertation Authors Nicholls, Keith H. Citation Nicholls, K. (2019). A Geoconservation perspective on the trace fossil record associated with the end – Ordovician mass extinction and glaciation in the Welsh Basin. (Doctoral dissertation). University of Chester, United Kingdom. Publisher University of Chester Rights Attribution-NonCommercial-NoDerivatives 4.0 International Download date 26/09/2021 02:37:15 Item License http://creativecommons.org/licenses/by-nc-nd/4.0/ Link to Item http://hdl.handle.net/10034/622234 International Chronostratigraphic Chart v2013/01 Erathem / Era System / Period Quaternary Neogene C e n o z o i c Paleogene Cretaceous M e s o z o i c Jurassic M e s o z o i c Jurassic Triassic Permian Carboniferous P a l Devonian e o z o i c P a l Devonian e o z o i c Silurian Ordovician s a n u a F y r Cambrian a n o i t u l o v E s ' i k s w o Ichnogeneric Diversity k p e 0 10 20 30 40 50 60 70 S 1 3 5 7 9 11 13 15 17 19 21 n 23 r e 25 d 27 o 29 M 31 33 35 37 39 T 41 43 i 45 47 m 49 e 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 Number of Ichnogenera (Treatise Part W) Ichnogeneric Diversity 0 10 20 30 40 50 60 70 1 3 5 7 9 11 13 15 17 19 21 n 23 r e 25 d 27 o 29 M 31 33 35 37 39 T 41 43 i 45 47 m 49 e 51 53 55 57 59 61 c i o 63 z 65 o e 67 a l 69 a 71 P 73 75 77 79 81 83 n 85 a i r 87 b 89 m 91 a 93 C Number of Ichnogenera (Treatise Part W)
    [Show full text]
  • Cenomanian Turonian Coniacian Santonian Campanian
    walteri aff. aff. spp. spp. imperfectus spp. (prisms) Chronostratigraphy Offshore Norway sp. 1 Geologic Time Scale 2012 Zonation (Gradstein et al., 1999, and this study) Allomorphina halli / pyriformis Sigmoilina antiqua Textularia Gavelinella intermeda gracillima Valvulineria Bulbobaculites problematicus Caudammina ovuloides Nuttallinella florealis Stensioeina granulata polonica Inoceramus Rzehakina minima Rzehakina epigona Fenestrella bellii Gaudryina filiformis Trochamminoides Haplophragmoides Gavelinella usakensis Caudammina ovula Coarse agglutinated spp. LCO dubia Tritaxia Plectorecurvoides alternans Reussella szajnochae Recurvoides Hippocrepina depressa Psammosphaera sphaerical radiolarians Ma Age/Stage Lingulogavelinella jarzevae elegans Lt NCF19 Maastrichtian volutus LCO 70 NCF18 E szajnochae dubia Lt 75 LCO of NCF17 Campanian Deep Water M Agglutinated 80 Foraminifera E bellii NCF16 Lt Inoceramus LCO NCF15 85 Santonian M E polonica NCF14 Lt Coniacian M E Marginotruncana NCF13 90 Lt Turonian M E Dicarinella NCF12 95 Lt brittonensis M NCF11 Cenomanian delrioensis LCO NCF10 E antiqua NCF9 100 Figure 2.8c. Stratigraphic ranges of Upper Cretaceous benthic foraminifera, and miscellaneous index taxa, oshore mid-Norway, with the foraminiferal zonation established in this study. s.l. Chronostratigraphy Offshore Norway Geologic Time Scale 2012 Zonation (Gradstein et al., 1999, and this study) Abathomphalus mayaroensis Pseudotextularia elegans Hedbergella planispira Hedbergella hoelzi Praeglobotruncana delrioensis Praeglobotruncana stephani
    [Show full text]
  • The Valanginian to Aptian Stages - Current Definitions and Outstanding Problems
    © Biodiversity Heritage Library, http://www.biodiversitylibrary.org/; www.zobodat.at 4‘>3 Zitteliana 10 493-500 München, I. Juli 1983 ISSN 0373 9627 The Valanginian to Aptian stages - current definitions and outstanding problems Compiled by PETER FRANKLIN RAWSON») Willi 3 tables ABSTRACT Current definitions of the Valanginian to Aptian Stages are tion potential. The I’re-Albian Stages Working Croup is in­ reviewed and some of the outstanding problems outlined. Fi­ stigating study of selected sections in various parts of the nal recommendations on stage boundaries can be made only world to provide an integrated framework ol biostraligraphy after much more strat¡(graphical work has been completed, as and event stratigraphy. the eventual boundaries must have good international correla­ KURZFASSUNG Lin Überblick über die gängigen Definitionen der Stufen barsein. Die Prc-Albian Stagcs Working Group regt an, ms vom Valangin bis zum Apt wird gegeben und einige wichtige gewählte Profile in verschiedenen Peilen der Welt zu unterst! Probleme hervorgehoben. Lndgülligc Empfehlungen zu Stu­ ehen, um so den allgemeinen Rahmen liii eine Ncudelinition fengrenzen sind z. Zt. noch nicht möglich. Dazu sind noch der Stufen auf der Grundlage der Biostraligraphie und der weitere stratigraphische Untersuchungen erforderlich, denn Lvenl-Straiigraphic zu schaffen. die fcstzulcgendcn Grenzen müssen international korrelier­ I. INTRODUCTION This review has been compiled on behalf of the Prc-Albian boundaries and to improve the usage of stage names in re­ Stages Working Group of the Subcommission on Cretaceous gions away from stratotype sections." Stratigraphy. The primary role of the working group is to cla ­ Thus our fundamental philosophy is first to make objective rify, and to improve where necessary, the definition and correlations between regions and only then to redefine stages boundaries of the Valanginian to Aptian Stages.
    [Show full text]