DOCSLIB.ORG

ANNUAL REPORT 2018 Commission for Geological Map of the World International Association of Geomorphologists 1

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
ANNUAL REPORT 2018 Commission for Geological Map of the World International Association of Geomorphologists 1 Permophiles Issue #67 April 2019 SUBCOMMISSION ON PERMIAN STRATIGRAPHY International Association on the Genesis of Ore Deposits ANNUAL REPORT 2018 Commission for Geological Map of the World International Association of Geomorphologists 1. TITLE OF CONSTITUENT BODY and NAME OF 3a. Nominated Officers for 2016-2020 period: REPORTER International Subcommission on Permian Stratigraphy (SPS) Prof. Shuzhong Shen (SPS Chairman) Submitted by: School of Earth Sciences and Engeering, Shuzhong Shen, SPS Chairman Nanjing University, 163 Xianlin Avenue, School of Earth Sciences and Engeering, Nanjing 210023, China Nanjing University, 163 Xianlin Avenue, E-mail: [email protected] Nanjing 210023, China E-mail: [email protected] Prof. Joerg W. Schneider (SPS Vice-Chairman) 2. OVERALL OBJECTIVES, AND FIT WITHIN IUGS Freiberg University of Mining and Technology SCIENCE POLICY Institute of Geology, Dept. of Palaeontology, Subcommission Objectives: The Subcommission’s pri- Bernhard-von-Cotta-Str.2 mary objective is to define the series and stages of the Permian Freiberg, D-09596, Germany by means of internationally agreed GSSPs and establish a high- E-mail: [email protected] resolution temporal framework based on multidisciplinary (biostratigraphical, geochronologic, chemostratigraphical, Prof. Lucia Angiolini (SPS Secretary) megnatostratigraphical etc.) approaches, and to provide the inter- Dipartimento di Scienze Terra “A. DEsio” national forum for scientific discussion and interchange on all Via Mangiagalli 34, 20133 aspects of the Permian, but specifically on refined intercontinen- Milano, Italy tal and regional correlations. E-mail: [email protected] Fit within IUGS Science Policy: The objectives of the 4. EXTENT OF NATIONAL/REGIONAL/GLOBAL Subcommission involve two main aspects of IUGS policy: 1) The SUPPORT FROM SOURCES OTHER THAN IUGS development of an internationally agreed chronostratigraphic SPS chair Shuzhong Shen organized an international coopera- scale with units defined by GSSPs where appropriate and related tive project on the correlation of the Guadalupian Series between to a hierarchy of units to maximize relative time resolution within South China and Mt. Guadalupe in Texas, USA, which is sup- the Permian System; and 2, establishment of framework and sys- ported by NSFC. tems to encourage international collaboration in understanding A Strategic Priority Research Program “Processes and the evolution of the Earth and life during the Permian Period. Mechanisms of Organismal and Environmental Evolution during 3. ORGANISATION-Interfaces with other international the Critical Intervals in Earth History” led by Shuzhong Shen has project/groups been approved by Chinese Academy of Science (2018-2023). With SPS interacts with many international projects on formal and the national team of more than 200 expert scientists in collabora- informal levels. Shuzhong Shen, as one of the principal proposer, tion with numerous oversea scientists in synthetic stratigraphy, we are applying for funding from various resources in China to paleontology, sedimentology, geochemistry, geochronology and support the Deep Time Digital Earth (DDE) program. The cur- big data analysis and modeling, this program adopts interdisci- rent sponsors of the DDE proposal include the following IUGS plinary approaches to addressing major issues about evolution of constituent groups (affiliated international organizations and life on earth from both temporal and spatial perspectives. national members). These members will serve as founding mem- 5. CHIEF ACCOMPLISHMENTS AND PRODUCTS IN bers to support this proposal. This type of initiative could also 2018 provide an opportunity for partnership with regional and inter- A formal proposal of the Sakmarian-base GSSP was national associations of universities, publishers and datacenters. submitted to International Commission on Stratigraphy, which List of members supporting the initiative: was approved by 100% in ICS. This proposal then was submitted International Commission on Stratigraphy (ICS) to IUGS on June 30, 2018 and formally ratified by IUGS EC on International Association of Paleontology (IAP) July 21, 2018. International Association of Sedimentologists (IAS) A volume of Special Publication (The Permian International Association for Mathematical Geosciences Timescales. Geological Society, London, Special Publication (IAMG) 450) has been published by Lucas, S.G. and Shen, S.Z. China Geological Survey (CGS) (2018). This volume reviews the state of the art of the Permian British Geological Survey (BGS) timescales of the SPS including geochronology, high-resolution Russian Geological Research Institute biostratigraphy based on various fossil groups (conodonts, Commission on the Management & Application of Geoscience fusulinids, brachiopods, plant fossils, radiolarians etc.), Information magnetostratigraphy etc. and a latest Permian timescale is also American Association of Petroleum Geologists presented. 3 Permophiles Issue #67 April 2019 A Special Issue on Integrative Stratigraphy and timescale of geography and Deep Time Big Data (DDE Program)”. The China has been published on Science China Earth Sciences (Shen main purpose and mission of DDE Program are to provide a and Rong, edited, 2019) now. This issue includes 13 periods and dynamically linked, paleogeologically- and paleogeographi- summarized the advances in stratigraphy and timescale from cally-referenced (spatially and temporally) digital earth da- Ediacaran to Quaternary in China during the last two decades. tabase so a researcher, teacher or student can not only ac- One regular issue of Permophiles (Issues 66) and a cess the comprehensive datasets, but also analyze the data supplementary issue of Permophiles for the 8th Brachiopod spatially, temporally and genetically. A formal proposal has Congress (66-Suppl. Issue) have been published in 2018. They been submitted to IUGS EC. This plan will be finally decided are all available on the SPS website (http://permian.stratigraphy. in the IUGS EC meeting held in February, 2019 in Beijing org/pub/pub.asp). 2) Publishing the revised version of the proposals, organiz- ing the field excursions and establishing the remaining two 6. SUMMARY OF EXPENDITURES IN 2018 GSSPs for the Cisuralian. We received a budget $3000 from ICS a few days ago. 3) Continue to work on the Guadalupian GSSPs and global cor- As planned in the 2017 annual report, this money was mainly relation for chemostratigraphy and geochronologic calibra- pre-used for supporting the publication of Permophiles, and tion. Publish the official papers for the three Guadalupian SPS Chair to meet SPS secretary Lucia Angiolini Milano in GSSPs. September, 2018 to edit Permophiles. 7. SUMMARY OF INCOME 2018 An amount 2195 Euro was allocated from ICS. Officers and Voting Members 8. BUDGET REQUESTS FROM ICS IN 2019 since August, 2016 We apply for 5000US$ from ICS for SPS activities in 2019. Prof. Lucia Angiolini (SPS Secretary) SPS Chair Shuzhong Shen will attend the 3rd International Con- Dipartimento di Scienze Terra “A. DEsio” gress on Stratigraphy (STRATI 2019, 2-5 July, Milano, Italy) and Via Mangiagalli 34, 20133 the International Congress on Carboniferous and Permian (ICCP, Milano, Italy July 29-August 2, 2019, Cologne, Germany). Two SPS business E-mail: [email protected] meetings have been planned respectively during these two meet- Dr. Alexander Biakov ings. We will use a part of the money to support SPS voting mem- Northeast Interdisciplinary Scientific Research Institute bers and young scholars recommended by SPS voting members to Far East Branch, Russian Academy of Sciences, attend these two meeting. Portovaya ul. 16, Magadan, 685000 Russia We will also start to prepare the Artinskian and Kungurian E-mail: [email protected] GSSPs. Dr. Valery Chernykh 9. WORK PLAN, CRITICAL MILESTONES, Institute of Geology and Geochemistry ANTICIPATED RESULTS AND COMMUNICATIONS Urals Branch of TO BE ACHIEVED NEXT YEAR Russian Academy of Science The primary objectives are to complete the remaining two Pochtovy per 7 GSSPs (Artinskian and Kungurian stages) and re-define/study Ekaterinburg 620154 Russia the three GSSPs of the Guadalupian Series (Roadian, Wordian E-mail: [email protected] and Capitanian). The Russian Stratigraphic Committee has exca- vated the Dalny Tukas (Artinskian-base) and Mechetlino Quarry Dr. Nestor R. Cuneo (Kungurian-base) sections as well. The next target of SPS is to Museo Paleontologico Egidio Feruglio publish the Sakmarian GSSP paper and complete the proposal for (U9100GYO) Av. Fontana 140, these remaining two Cisuralian GSSPs. Trelew, Chubut, Patagonia Argentina The priority of 2019 for GSSP is to: E-mail: [email protected] 1) Completing the Artinskian-base GSSP proposal for discussion Prof. Katsumi Ueno and voting in SPS; Department of Earth System Science 2) intensively study and clarify the problems in the three defined Fukuoka University Guadalupian GSSPs; Fukuoka 814-0180 JAPAN 3) Working on the replacement candidate section for the E-mail: [email protected] Lopingian-base GSSP at Penglaitan, South China. Prof. Charles M. Henderson 10. OBJECTIVES AND WORK PLAN FOR NEXT 4 YEARS Dept. of Geoscience (2019-2022) University of Calgary 1) SPS Chair Shuzhong Shen together with Junxuan Fan of the Calgary, Alberta GBDB group is actively involved in organizing the IUGS Canada T2N1N4 Recognized Big Science Program “Reconstruction of Paleo- E-mail: [email protected] 4.
Load more

Recommended publications
  • Distributions of Extinction Times from Fossil Ages and Tree Topologies: the Example of Some Mid-Permian Synapsid Extinctions Gilles Didier, Michel Laurin
    Distributions of extinction times from fossil ages and tree topologies: the example of some mid-Permian synapsid extinctions Gilles Didier, Michel Laurin To cite this version: Gilles Didier, Michel Laurin. Distributions of extinction times from fossil ages and tree topologies: the example of some mid-Permian synapsid extinctions. 2021. hal-03258099v2 HAL Id: hal-03258099 https://hal.archives-ouvertes.fr/hal-03258099v2 Preprint submitted on 20 Sep 2021 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Distributions of extinction times from fossil ages and tree topologies: the example of some mid-Permian synapsid extinctions Gilles Didier1 and Michel Laurin2 1 IMAG, Univ Montpellier, CNRS, Montpellier, France 2 CR2P (\Centre de Pal´eontologie { Paris"; UMR 7207), CNRS/MNHN/SU, Mus´eumNational d'Histoire Naturelle, Paris, France September 16, 2021 Abstract Given a phylogenetic tree that includes only extinct, or a mix of extinct and extant taxa, where at least some fossil data are available, we present a method to compute the distribution of the extinction time of a given set of taxa under the Fossilized-Birth-Death model. Our approach differs from the previous ones in that it takes into account (i) the possibility that the taxa or the clade considered may diversify before going extinct and (ii) the whole phylogenetic tree to estimate extinction times, whilst previous methods do not consider the diversification process and deal with each branch independently.
    [Show full text]
  • Sedimentology and Biostratigraphy of Bart Reef: a New Mud-Mound Discovered in the Northern Sverdrup Basin, West-Central Ellesmere Island
    Sedimentology and Biostratigraphy of Bart Reef: A New Mud-Mound Discovered in the Northern Sverdrup Basin, West-Central Ellesmere Island Michael Wamsteeker* University of Calgary, Calgary, AB [email protected] and Benoit Beauchamp and Charles Henderson University of Calgary, Calgary, AB Summary Lower Permian (Sakmarian-Kungurian) carbonate rocks of the Sverdrup Basin, Canadian Arctic Archipelago, record the initiation of a dramatic cooling of ocean temperature and regional climate.1 Asselian-Sakmarian tropical-like climate cooled episodically to subtropical, temperate and finally polar-like conditions by the Kungurian.2 Cooling is recognized by monitoring changes in fossils, lithology and sedimentary textures within Permian shallow marine strata. While initial cooling during the Sakmarian from tropical to subtropical conditions is undoubtably geologically rapid, the rate of change is currently unknown. Measurement of this rate is currently being investigated by monitoring habitation depth of temperature sensitive tropical fossils on the Asselian-Sakmarian carbonate shelf, while timing is determined using the conodont biostratigraphic zonation developed for the Sverdrup Basin in conjunction with absolute dates on the International Time Scale.3 Fieldwork carried out in Summer 2007 included the first description of a new tract of Asselian mud mounds on the northern margin of the Sverdrup Basin. Contained within the Nansen Formation, this tract has been informally named the Simpson reef tract. This study documents the sedimentology and conodont biostratigraphy of Bart reef; a member of this tract. Spectacular outcrop exposure of reef and off-reef strata has enabled a truely thorough characterization including the correlation of reef and off-reef facies. Conodont biostratigraphic dating of correlative off-reef facies indicate a middle to late Asselian age for Bart reef.
    [Show full text]
  • Guadalupian, Middle Permian) Mass Extinction in NW Pangea (Borup Fiord, Arctic Canada): a Global Crisis Driven by Volcanism and Anoxia
    The Capitanian (Guadalupian, Middle Permian) mass extinction in NW Pangea (Borup Fiord, Arctic Canada): A global crisis driven by volcanism and anoxia David P.G. Bond1†, Paul B. Wignall2, and Stephen E. Grasby3,4 1Department of Geography, Geology and Environment, University of Hull, Hull, HU6 7RX, UK 2School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK 3Geological Survey of Canada, 3303 33rd Street N.W., Calgary, Alberta, T2L 2A7, Canada 4Department of Geoscience, University of Calgary, 2500 University Drive N.W., Calgary Alberta, T2N 1N4, Canada ABSTRACT ing gun of eruptions in the distant Emeishan 2009; Wignall et al., 2009a, 2009b; Bond et al., large igneous province, which drove high- 2010a, 2010b), making this a mid-Capitanian Until recently, the biotic crisis that oc- latitude anoxia via global warming. Although crisis of short duration, fulfilling the second cri- curred within the Capitanian Stage (Middle the global Capitanian extinction might have terion. Several other marine groups were badly Permian, ca. 262 Ma) was known only from had different regional mechanisms, like the affected in equatorial eastern Tethys Ocean, in- equatorial (Tethyan) latitudes, and its global more famous extinction at the end of the cluding corals, bryozoans, and giant alatocon- extent was poorly resolved. The discovery of Permian, each had its roots in large igneous chid bivalves (e.g., Wang and Sugiyama, 2000; a Boreal Capitanian crisis in Spitsbergen, province volcanism. Weidlich, 2002; Bond et al., 2010a; Chen et al., with losses of similar magnitude to those in 2018). In contrast, pelagic elements of the fauna low latitudes, indicated that the event was INTRODUCTION (ammonoids and conodonts) suffered a later, geographically widespread, but further non- ecologically distinct, extinction crisis in the ear- Tethyan records are needed to confirm this as The Capitanian (Guadalupian Series, Middle liest Lopingian (Huang et al., 2019).
    [Show full text]
  • Distributions of Extinction Times from Fossil Ages and Tree Topologies: the Example of Some Mid-Permian Synapsid Extinctions
    bioRxiv preprint doi: https://doi.org/10.1101/2021.06.11.448028; this version posted June 11, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. Distributions of extinction times from fossil ages and tree topologies: the example of some mid-Permian synapsid extinctions Gilles Didier1 and Michel Laurin2 1IMAG, Univ Montpellier, CNRS, Montpellier, France 2CR2P (“Centre de Recherches sur la Paléobiodiversité et les Paléoenvironnements”; UMR 7207), CNRS/MNHN/UPMC, Sorbonne Université, Muséum National d’Histoire Naturelle, Paris, France June 11, 2021 Abstract Given a phylogenetic tree of extinct and extant taxa with fossils where the only temporal infor- mation stands in the fossil ages, we devise a method to compute the distribution of the extinction time of a given set of taxa under the Fossilized-Birth-Death model. Our approach differs from the previous ones in that it takes into account the possibility that the taxa or the clade considered may diversify before going extinct, whilst previous methods just rely on the fossil recovery rate to estimate confidence intervals. We assess and compare our new approach with a standard previous one using simulated data. Results show that our method provides more accurate confidence intervals. This new approach is applied to the study of the extinction time of three Permo-Carboniferous synapsid taxa (Ophiacodontidae, Edaphosauridae, and Sphenacodontidae) that are thought to have disappeared toward the end of the Cisuralian, or possibly shortly thereafter. The timing of extinctions of these three taxa and of their component lineages supports the idea that a biological crisis occurred in the late Kungurian/early Roadian.
    [Show full text]
  • Wandrawandian Siltstone, New South Wales: Record of Glaciation?
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Earth and Atmospheric Sciences, Department Papers in the Earth and Atmospheric Sciences of 2007 Lithostratigraphy of the late Early Permian (Kungurian) Wandrawandian Siltstone, New South Wales: Record of glaciation? S. G. Thomas Southern Methodist University, [email protected] Christopher R. Fielding University of Nebraska-Lincoln, [email protected] Tracy D. Frank University of Nebraska-Lincoln, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/geosciencefacpub Part of the Earth Sciences Commons Thomas, S. G.; Fielding, Christopher R.; and Frank, Tracy D., "Lithostratigraphy of the late Early Permian (Kungurian) Wandrawandian Siltstone, New South Wales: Record of glaciation?" (2007). Papers in the Earth and Atmospheric Sciences. 105. https://digitalcommons.unl.edu/geosciencefacpub/105 This Article is brought to you for free and open access by the Earth and Atmospheric Sciences, Department of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Papers in the Earth and Atmospheric Sciences by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Published in Australian Journal of Earth Sciences 54 (2007), pp. 1057–1071; doi: 10.1080/08120090701615717 Copyright © 2007 Geological Society of Australia; published by Taylor & Francis. Used by permission. Submitted March 22, 2006; accepted June 21, 2007. Lithostratigraphy of the late Early Permian (Kungurian) Wandrawandian
    [Show full text]
  • From the Lower Permian of Eastern Europe
    Paleontological Research, vol. 9, no. 1, pp. 79–84, April 30, 2005 6 by the Palaeontological Society of Japan A new genus of the family Amblypteridae (Osteichthyes: Actinopterygii) from the Lower Permian of Eastern Europe ARTE´ M M. PROKOFIEV Department of Fishes and Fish-like Vertebrates, Paleontological Institute – PIN, Russian Academy of Sciences, Profsoyuznaya Street, 123, Moscow 117997, Russia (e-mail: [email protected]) Received February 14, 2002; Revised manuscript accepted February 22, 2005 Abstract. A new genus and species of the family Amblypteridae, Tchekardichthys sharovi,fromthe Lower Permian of Eastern Europe (Perm Region of Russia) is described. It can be distinguished from all the known members of the family in the position of the fins and number of fin rays, characters of scalation and cranial roofing bones ornamentation, etc. The newly described taxon apparently lived in estuarine or brackish-water habitats. Key words: actinopterygians, Amblypteridae, Eastern Europe, Lower Permian, new genus and species The elonichthyiform family Amblypteridae is rep- second is situated at the mouth of the Tchekarda resented by five genera and numerous species from River and immediately downstream of the latter, and the Carboniferous to Lower Permian of France, Ger- the third one is situated on the left bank of the Sylva many, Czech Republic, India (Kashmir) and South River 850 m downstream from the mouth of the America, and from the Upper Permian of the Ural Tchekarda River. The specimens described herein are region in Eastern Europe (Agassiz, 1833–1844; Berg, found in the second site. The Tchekarda layers belong 1940; Dunkle and Schaeffer, 1956; Berg et al., 1964; to the Koshelevskaya Formation of the Irenskian Re- Heyler, 1969, 1976, 1997; Beltan, 1978).
    [Show full text]
  • Carbon and Strontium Isotope Stratigraphy of the Permian from Nevada and China: Implications from an Icehouse to Greenhouse Transition
    Carbon and strontium isotope stratigraphy of the Permian from Nevada and China: Implications from an icehouse to greenhouse transition Dissertation Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By Kate E. Tierney, M.S. Graduate Program in the School of Earth Sciences The Ohio State University 2010 Dissertation Committee: Matthew R. Saltzman, Advisor William I. Ausich Loren Babcock Stig M. Bergström Ola Ahlqvist Copyright by Kate Elizabeth Tierney 2010 Abstract The Permian is one of the most important intervals of earth history to help us understand the way our climate system works. It is an analog to modern climate because during this interval climate transitioned from an icehouse state (when glaciers existed extending to middle latitudes), to a greenhouse state (when there were no glaciers). This climatic amelioration occurred under conditions very similar to those that exist in modern times, including atmospheric CO2 levels and the presence of plants thriving in the terrestrial system. This analog to the modern system allows us to investigate the mechanisms that cause global warming. Scientist have learned that the distribution of carbon between the oceans, atmosphere and lithosphere plays a large role in determining climate and changes in this distribution can be studied by chemical proxies preserved in the rock record. There are two main ways to change the distribution of carbon between these reservoirs. Organic carbon can be buried or silicate minerals in the terrestrial realm can be weathered. These two mechanisms account for the long term changes in carbon concentrations in the atmosphere, particularly important to climate.
    [Show full text]
  • Permian (Artinskian to Wuchapingian) Conodont Biostratigraphy in the Tieqiao Section, Laibin Area, South China
    Permian (Artinskian to Wuchapingian) conodont biostratigraphy in the Tieqiao section, Laibin area, South China Y.D. Suna, b*, X.T. Liuc, J.X. Yana, B. Lid, B. Chene, D.P.G. Bondf, M.M. Joachimskib, P.B. Wignallg, X.L. Laia a State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China b GeoZentrum Nordbayern, Universität Erlangen-Nürnberg, Schlossgarten 5, 91054 Erlangen, Germany c Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China d Key Laboratory of Marine Mineral Resources, Guangzhou Marine Geological Survey, Ministry of Land and Resources, Guangzhou, 510075, China e State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, 39 East Beijing Road, Nanjing, 210008, R.P. China f School of Environmental Sciences, University of Hull, Hull HU6 7RX, UK g School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK *Corresponding authors Email: [email protected] (Y.D. Sun) © 2017, Elsevier. Licensed under the Creative Commons Attribution- NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/ licenses/by-nc-nd/4.0/ 1 Abstract Permian strata from the Tieqiao section (Jiangnan Basin, South China) contain several distinctive conodont assemblages. Early Permian (Cisuralian) assemblages are dominated by the genera Sweetognathus, Pseudosweetognathus and Hindeodus with rare Neostreptognathodus and Gullodus. Gondolellids are absent until the end of the Kungurian stage—in contrast to many parts of the world where gondolellids and Neostreptognathodus are the dominant Kungurian conodonts. A conodont changeover is seen at Tieqiao and coincided with a rise of sea level in the late Kungurian to the early Roadian: the previously dominant sweetognathids were replaced by mesogondolellids.
    [Show full text]
  • Paleozoic Stratigraphy and Petroleum Systems of the Western and Southwestern Deserts of Iraq
    GeoArabia, Vol. 3, No. 2, 1998 Paleozoic Stratigraphy and Petroleum Systems, Iraq Gulf PetroLink, Bahrain Paleozoic Stratigraphy and Petroleum Systems of the Western and Southwestern Deserts of Iraq Adnan A.M. Aqrawi Smedvig Technologies ABSTRACT A stratigraphic scheme for the Paleozoic of the Southwestern Desert of Iraq is proposed based upon the review of recently published data from several deep wells in the western part of the country and from outcrops in other regions in Iraq. The main formations are described in terms of facies distribution, probable age, regional thickness, and correlations with the well-reported Paleozoic successions of the adjacent countries (e.g. Jordan and Saudi Arabia), as well as with the Thrust Zone of North Iraq. The Paleozoic depositional and tectonic evolution of the Western and Southwestern Deserts of Iraq, particularly during Cambrian, Ordovician and Silurian, shows marked similarity to those of eastern Jordan and northern Saudi Arabia. However, local lithological variations, which are due to Late Paleozoic Hercynian tectonics, characterize the Upper Paleozoic sequences. The Lower Silurian marine “hot” shale, 65 meters thick in the Akkas-1 well in the Western Desert, is believed to be the main Paleozoic source rock in the Western and Southwestern Deserts. Additional potential source rocks in this region could be the black shales of the Ordovician Khabour Formation, the Upper Devonian to Lower Carboniferous Ora Shale Formation, and the lower shaly beds of the Upper Permian Chia Zairi Formation. The main target reservoirs are of Ordovician, Silurian, Carboniferous and Permian ages. Similar reservoirs have recently been reported for the Western Desert of Iraq, eastern Jordan and northern Saudi Arabia.
    [Show full text]
  • Proposal of Guadalupian and Component Roadian, Wordian And
    Permophiles Issue #34 1999 REPORTS Proposal of Guadalupian and Component morphoclines, absolute dates, and paleomagnetics. Roadian, Wordian and Capitanian Stages as International Standards for the Middle Permian Historic Preamble Prolonged deliberation of SPS members culminated in the man- Series dated formal postal vote by Titular (voting) Members that approved subdivision of the Permian System into three series, in ascending Brian F. Glenister order Cisuralian, Guadalupian and Lopingian (Report of Presi- University of Iowa dent Jin Yugan, Permophiles #29, p. 2). The “——usage of the Department of Geology Guadalupian Series and constituent stages, i.e. the Roadian, the Iowa City, IA 52242, USA Wordian and the Capitanian Stage for the middle part of the Per- mian.” was approved unanimously by 15 voting members. Pro- Bruce R. Wardlaw posal of the Guadalupian as a chronostratigraphic unit of series U. S. Geological Survey rank (Girty, 1902) predates any potential competitors by decades 926A National Center (Glenister et al., 1992). Of the three component stages currently Reston, VA 22092-0001, USA recognized, the upper two (Wordian and Capitanian) enjoy com- parable priority. Capitanian was first employed in a Lance L. Lambert lithostratigraphic sense by Richardson (1904) for the massive reef Department of Physics limestones of the Guadalupe Mountains of New Mexico and West Southwest Texas State University Texas, and the Word was used by Udden et al. (1916) for the San Marcos, TX 78666-4616, USA interbedded clastic/carbonate sequence in the adjacent Glass Moun- tains. Both were used in a strictly chronostratigraphic sense first Claude Spinosa by Glenister and Furnish (1961) as substages of the Guadalupian Stage, referenced by their nominal formations and recognized else- Permian Research Institute where through “ammonoid and fusuline faunas”.
    [Show full text]
  • International Chronostratigraphic Chart
    INTERNATIONAL CHRONOSTRATIGRAPHIC CHART www.stratigraphy.org International Commission on Stratigraphy v 2014/02 numerical numerical numerical Eonothem numerical Series / Epoch Stage / Age Series / Epoch Stage / Age Series / Epoch Stage / Age Erathem / Era System / Period GSSP GSSP age (Ma) GSSP GSSA EonothemErathem / Eon System / Era / Period EonothemErathem / Eon System/ Era / Period age (Ma) EonothemErathem / Eon System/ Era / Period age (Ma) / Eon GSSP age (Ma) present ~ 145.0 358.9 ± 0.4 ~ 541.0 ±1.0 Holocene Ediacaran 0.0117 Tithonian Upper 152.1 ±0.9 Famennian ~ 635 0.126 Upper Kimmeridgian Neo- Cryogenian Middle 157.3 ±1.0 Upper proterozoic Pleistocene 0.781 372.2 ±1.6 850 Calabrian Oxfordian Tonian 1.80 163.5 ±1.0 Frasnian 1000 Callovian 166.1 ±1.2 Quaternary Gelasian 2.58 382.7 ±1.6 Stenian Bathonian 168.3 ±1.3 Piacenzian Middle Bajocian Givetian 1200 Pliocene 3.600 170.3 ±1.4 Middle 387.7 ±0.8 Meso- Zanclean Aalenian proterozoic Ectasian 5.333 174.1 ±1.0 Eifelian 1400 Messinian Jurassic 393.3 ±1.2 7.246 Toarcian Calymmian Tortonian 182.7 ±0.7 Emsian 1600 11.62 Pliensbachian Statherian Lower 407.6 ±2.6 Serravallian 13.82 190.8 ±1.0 Lower 1800 Miocene Pragian 410.8 ±2.8 Langhian Sinemurian Proterozoic Neogene 15.97 Orosirian 199.3 ±0.3 Lochkovian Paleo- Hettangian 2050 Burdigalian 201.3 ±0.2 419.2 ±3.2 proterozoic 20.44 Mesozoic Rhaetian Pridoli Rhyacian Aquitanian 423.0 ±2.3 23.03 ~ 208.5 Ludfordian 2300 Cenozoic Chattian Ludlow 425.6 ±0.9 Siderian 28.1 Gorstian Oligocene Upper Norian 427.4 ±0.5 2500 Rupelian Wenlock Homerian
    [Show full text]
  • Paleogeographic Maps Earth History
    History of the Earth Age AGE Eon Era Period Period Epoch Stage Paleogeographic Maps Earth History (Ma) Era (Ma) Holocene Neogene Quaternary* Pleistocene Calabrian/Gelasian Piacenzian 2.6 Cenozoic Pliocene Zanclean Paleogene Messinian 5.3 L Tortonian 100 Cretaceous Serravallian Miocene M Langhian E Burdigalian Jurassic Neogene Aquitanian 200 23 L Chattian Triassic Oligocene E Rupelian Permian 34 Early Neogene 300 L Priabonian Bartonian Carboniferous Cenozoic M Eocene Lutetian 400 Phanerozoic Devonian E Ypresian Silurian Paleogene L Thanetian 56 PaleozoicOrdovician Mesozoic Paleocene M Selandian 500 E Danian Cambrian 66 Maastrichtian Ediacaran 600 Campanian Late Santonian 700 Coniacian Turonian Cenomanian Late Cretaceous 100 800 Cryogenian Albian 900 Neoproterozoic Tonian Cretaceous Aptian Early 1000 Barremian Hauterivian Valanginian 1100 Stenian Berriasian 146 Tithonian Early Cretaceous 1200 Late Kimmeridgian Oxfordian 161 Callovian Mesozoic 1300 Ectasian Bathonian Middle Bajocian Aalenian 176 1400 Toarcian Jurassic Mesoproterozoic Early Pliensbachian 1500 Sinemurian Hettangian Calymmian 200 Rhaetian 1600 Proterozoic Norian Late 1700 Statherian Carnian 228 1800 Ladinian Late Triassic Triassic Middle Anisian 1900 245 Olenekian Orosirian Early Induan Changhsingian 251 2000 Lopingian Wuchiapingian 260 Capitanian Guadalupian Wordian/Roadian 2100 271 Kungurian Paleoproterozoic Rhyacian Artinskian 2200 Permian Cisuralian Sakmarian Middle Permian 2300 Asselian 299 Late Gzhelian Kasimovian 2400 Siderian Middle Moscovian Penn- sylvanian Early Bashkirian
    [Show full text]