DOCSLIB.ORG

International Commission on Stratigraphy (ICS)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

1 INTERNATIONAL UNION OF GEOLOGICAL SCIENCES INTERNATIONAL COMMISSION ON STRATIGRAPHY CHAIR Prof. Felix M. GRADSTEIN, Museum of Natural History, Univ. Oslo, P.O.Box 1172 Blindern, N-0318 OSLO, NORWAY TEL +47-22-851663 office; +47-67-540966 home; FAX +47-22-851832; E-mail: [email protected] VICE-CHAIR Prof. Stanley FINNEY, Dept. Geological Sciences, California State University at Long Beach, Long Beach, CA 90840, USA TEL +1-562-985-8637 office; FAX +1-562-985-8638; E-mail: [email protected] SECRETARY-GENERAL Prof. James OGG, Dept. Earth & Atmos. Sci., 550 Stadium Mall Dr., Purdue University, West Lafayette, IN 47907-2051, USA TEL +1-765-494-8681 office; +1-765-743-0400 home; FAX +1-765-496-1210; E-mail: [email protected] ________________________________________________________________________________________________________________ 21 December 2007 International Union of Geological Sciences International Commission on Stratigraphy (ICS) CONSOLIDATED ANNUAL REPORT FOR 2007 Compiled by Felix M. Gradstein, chair, and James G. Ogg, secretary-general of ICS Oslo (Norway) and West Lafayette (USA) OVERVIEW The past year has seen several major accomplishments of ICS. Many are presented in the attached series of reports, and we highlight only a selected suite: (1) International Divisions of Geologic Time Precambrian: The much-requested Hadean Eon – a fascinating interval of lunar formation, origin and near-extinction of Earth’s life, heavy bombardment, and evolution of early atmosphere prior to the earliest preserved sediments – will be proposed as a standard for Earth, which will allow direct comparison to Mars and other bodies. Cambrian – The suite of newly ratified international stages has resolved nomenclature problems among regions. These, plus the carbon-isotope correlation horizons, indicate that the “Cambrian Explosion” of faunal diversity is not as nearly sudden as generally presented in popular textbooks. 2 Ordovician – A milestone has been achieved with the establishment of the full suite of inter- regional Ordovician stages. There is finally a universal language for understanding the tectonic revolutions and the surge in life’s diversity punctuated by an ice house. Quaternary – The Cenozoic currently has two GSSP-defined periods ratified by IUGS (Neogene and Paleogene). A consistent definition for the base of the “Quaternary” interval among late Cenozoic workers that is consistent with the onset of major cooling and field mapping of the oldest major continental glacial-derived sediments (e.g., oldest till in USA and related “typical Quaternary” deposits in Eurasia) was unanimously approved by both the different national bodies of the INQUA council and the full membership at the INQUA Congress. The Quaternary begins at ~2.6 Ma; and INQUA-ICS has agreed that the Pleistocene will begin at this same level, thereby allowing the standard Quaternary to become an international Period/System. The Pliocene returns to its pre-1996 status of having two stages; with that added Gelasian stage transferred to become the earliest stage of the Pleistocene. This solves an incompatibility with the INQUA-defined Quaternary that has lingered since 1985, and is consistent with the 1948 IGC-resolution that required the Pleistocene to include the Villefranchian continental stage of Europe (which is quasi-coeval with that Gelasian Stage). This INQUA-ICS historic agreement to establish the Quaternary still awaits IUGS ratification. This Quaternary is now shown in the ICS charts, publications, and website. Inter-Planetary nomenclature and correlation charts – In conjunction with planetary geologists at NASA and other institutions, the ICS will be publishing the first inter-planetary correlation charts for the histories of Earth, Moon, Mars, Mercury and Venus. (2) School and Public Outreach A major mandate of ICS is the promotion of education in stratigraphic methods, and the dissemination of knowledge about the history of our planet. In addition to our widely used suite of information on the ICS website (www.stratigraphy.org) and the individual subcommission websites; we are active in drafting, printing and distributing information about Earth history: School posters – During 2007, in conjunction with the International Year of Planet Earth, the ICS distributed 2500 school-audience posters in Australia (funded by Australian National University and GeoScience Australia) and 3000 posters in USA (funded by Purdue University and with the National Association of Geoscience Teachers). We worked with Smithsonian Institution and USGS for the imagery on this vivid chart. Pocket cards – A convenient and laminated pocket-card of Earth history was printed in different batches in different countries (usually 2000 each), with each printing for different agencies (Exxon/Mobil, Neftex/200 Year Anniv Geol. Soc, Chevron Arabia, Bahrain Geol. Soc.). A3 chart – In collaboration with the World Geological Map Office in Paris a chart of the international divisions of geologic time will be distributed to all IGC participants in Oslo, with printing likely provided by industry. A more elaborate A3 chart is being compiled showing Russian-international stage correlations. The outstanding geoscience journal Geoarabia closely follows ICS sponsored chronostratigraphy and regularly publishes our updated charts. TimeScale Creator – With the aid of numerous experts and a brilliant programmer, we have expanded the databases and capabilities of this free Earth-history visualization JAVA package at the ICS website. 3 Time Tree of Life – Oxford Universty Press is publishing a major text book on the paleontology and biology of all major living and fossil animal families. ICS wrote the time scale chapter, using GTS2004. The latter is used to align all groups in cladograms and phylogenetic trees. Geologic Time Scale booklet for 2008 – All ICS chairs have contributed to a booklet (~100 pages, full-color charts) of the status of the GSSPs, inter-regional correlations, and extensive diagrams of major zonations and geochemical trends. ENI Norway funds the insert of the laminated GTS pocket card. World Geological Map – ICS maintains close ties with the Bureau of the World Geological Map (CCGM) in Paris. The Bureau advises ICS on the stratigraphic colour patterns in the GTS, and is printing and selling GTS mouse pads and GTS charts provided by ICS. In 2008, an updated English edition of the textbook Stratigraphie, terminologie française, edited by Jacques Rey will be sponsored by ICS and CCGM. Gradstein, Ogg and Ogg wrote the Chapter 9, dealing with the latest advances in the geologic time scale, and current chronostratigraphic proposals and trends. (3) Geologic Time Scale (numerical ages) The first steps in establishing an international task group to synthesize the advances from astronomical tuning, radiometric dating and advanced quantitative stratigraphy are underway. This group is charged with compiling a vastly improved numerical-age scale by mid-2009, leading to a new version of the GTS2004 book. The book will be major update of the Geologic Time Scale, targeted for publication in 2010 in collaboration with Cambridge University Press. It will be a full colour version. The book will be online with a sophisticated search and browsing front menu. Newly planned chapters include the Planetary scale, the Cryogenian-Ediacaran Periods scale, a Prehistoric scale, a sequence stratigraphic scale, and extensive emphasis on stable isotope chemostratigrapy. Use will be made of the most modern insights in error analysis of radiogenic isotope analysis for age dating. Orbital tuning will be extended from Neogene downward into Paleogene and Cretaceous. Significant linear scale update itself may come both from new age dates in Ediacaran, Cambrian, Devonian, Carboniferous, Triassic, Jurassic and Cretaceous, and from substantial progress in ICS with the formal definition of the lower boundaries of stages and periods in the Phanerozoic. ANNUAL REPORT This ICS Consolidated Annual Report for 2007 has several portions: • The executive summary, with two main parts: • Items 1 - 8 summarize the current goals and scientific activities of the Commission and its component Subcommissions. • Items 9 - 13 detail the plans for 2008 and associated budget, and a multi-year overview of achievements and future goals. • An updated list of officers of all ICS subcommissions • The detailed reports of each individual Subcommission. • An Appendix of ICS-sponsored Symposia and other activities for the 33rd IGC. A separate attachment to this annual report is the latest version of the International Stratigraphic Chart. 4 Several longer-range issues have been active topics of discussion in 2007. These include: • A distinct role of a ’Bureau of Standards’ to preserve and communicate our GSSPs and other stratotypes, and to start to more actively focus on intra-stage standardization. • Councilors for regional contacts, and improved coordination with INQUA and IODP, and with the radiogenic isotope (EarthTime) community. • Special projects section of ICS to collaborate with national Geologic Surveys, Industry, BRGM and Geology Sections in Academies of Sciences and the ‘INTERNATIONAL YEAR OF PLANET EARTH’. In particular, for the International Year of Planet Earth, ICS is compiling a popular-level booklet on the modern geologic time scale is actively distributing a school-level poster on Earth’s history. • Favored status for three journals: Episodes and Newsletters on Stratigraphy for news, forum, GSSPs, etc., and the appropriately
Recommended publications
  • Conodonts and Foraminifers

    Conodonts and Foraminifers

    Journal of Asian Earth Sciences 108 (2015) 117–135 Contents lists available at ScienceDirect Journal of Asian Earth Sciences journal homepage: www.elsevier.com/locate/jseaes An integrated biostratigraphy (conodonts and foraminifers) and chronostratigraphy (paleomagnetic reversals, magnetic susceptibility, elemental chemistry, carbon isotopes and geochronology) for the Permian–Upper Triassic strata of Guandao section, Nanpanjiang Basin, south China ⇑ Daniel J. Lehrmann a, , Leanne Stepchinski a, Demir Altiner b, Michael J. Orchard c, Paul Montgomery d, Paul Enos e, Brooks B. Ellwood f, Samuel A. Bowring g, Jahandar Ramezani g, Hongmei Wang h, Jiayong Wei h, Meiyi Yu i, James D. Griffiths j, Marcello Minzoni k, Ellen K. Schaal l,1, Xiaowei Li l, Katja M. Meyer l,2, Jonathan L. Payne l a Geoscience Department, Trinity University, San Antonio, TX 78212, USA b Department of Geological Engineering, Middle East Technical University, Ankara 06531, Turkey c Natural Resources Canada-Geological Survey of Canada, Vancouver, British Columbia V6B 5J3, Canada d Chevron Upstream Europe, Aberdeen, Scotland, UK e Department of Geology, University of Kansas, Lawrence, KS 66045, USA f Louisiana State University, Baton Rouge, LA 70803, USA g Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA h Guizhou Geological Survey, Bagongli, Guiyang 550011, Guizhou Province, China i College of Resource and Environment Engineering, Guizhou University, Caijiaguan, Guiyang 550003, Guizhou Province, China j Chemostrat Ltd., 2 Ravenscroft Court, Buttington Cross Enterprise Park, Welshpool, Powys SY21 8SL, UK k Shell International Exploration and Production, 200 N. Dairy Ashford, Houston, TX 77079, USA l Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, USA article info abstract Article history: The chronostratigraphy of Guandao section has served as the foundation for numerous studies of the Received 13 October 2014 end-Permian extinction and biotic recovery in south China.
  • Fulu Biota, a New Exceptionally Preserved Cambrian Fossil Assemblage from the Longha Formation in Southeastern Yunnan

    Fulu Biota, a New Exceptionally Preserved Cambrian Fossil Assemblage from the Longha Formation in Southeastern Yunnan

    Fulu biota, a new exceptionally preserved Cambrian fossil assemblage from the Longha Formation in southeastern Yunnan Shanchi Penga, b*, Xianfeng Yangc, Liu Yuc, Xuejin Zhua, b, Haijing Sund, Samuel Zamorae, Yingyan Maoa, and Yuchen Zhanga aState Key Laboratory of Palaeobiology and Stratigraphy (Chinese Academy of Sciences), Nanjing 210008, China bNanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China cYunnan Key Laboratory for Palaeobiology, Yunnan University, Kunming 650091, ChinaeNational Maritime Museum of China, Tianjin 300467, China dNational Maritime Museum of China, Tianjin 300467, China eInstituto Geológico y Minero de España, C/ Manuel Lasala, 44 - 9º B, 50006 Zaragoza, Spain Abstract A new exceptionally preserved Cambrian biota, with fossils belonging to multiple phyla, has recently been found from the middle part of the Longha Formation, near Fulu Village, southeastern Yunnan, South China, and is named the Fulu biota. Groups recovered so far include polymerid trilobites, agnostoids, large bivalved arthropods, bradoriid arthropods, echinoderms, brachiopods, priapulids (worms), hyoliths, macroscopic algae, and trace fossils. The arthropods dominate and are highly diverse with echinoderms second in diversity. The associated agnostoids provide a precise late Guzhangian Age (late Miaolingian Epoch) for the biota, indicating that the biota occurs stratigraphically about halfway between the occurrences of the Kaili and the Guole biotas of South China, from both of which the new Fulu biota differs significantly in faunal components. Guzhangian biotas preserving poorly mineralized tissues and complete echinoderms were previously unknown in Gondwana until now, providing a unique window into life at this critical time interval. Keywords: Fulu biota; Fossils of multiple phyla; Longha Formation; Guzhangian; Yunnan, South China 1.
  • 03 Lukeneder ACTA LAYAUT

    03 Lukeneder ACTA LAYAUT

    Acta Geologica Polonica, Vol. 63 (2013), No. 1, pp. 89–104 DOI: 10.2478/agp-2013-0003 Palaeoenvironmental evolution of the Southern Alps across the Faraoni Level equivalent: new data from the Trento Plateau (Upper Hauterivian, Dolomites, N. Italy) ALEXANDER LUKENEDER1 AND PATRICK GRUNERT 2 1 Natural History Museum, Geological-Paleontological Department, Burgring 7, A-1010 Vienna, Austria. E-mail: [email protected] 2 University of Graz, Institute for Earth Sciences, Heinrichstraße 26, A-8010 Graz, Austria. E-mail: [email protected] ABSTRACT: Lukeneder, A. and Grunert, P. 2013. Palaeoenvironmental evolution of the Southern Alps across the Faraoni Level equivalent: new data from the Trento Plateau (Upper Hauterivian, Dolomites, N. Italy). Acta Geologica Polonica, 63 (1), 89–104. Warszawa. New stratigraphic and palaeoenvironmental data are presented for the northeastern part of the Trento Plateau (Puez area, Southern Alps, Italy). The studied section corresponds to the upper Hauterivian Balearites balearis and “Pseudothurmannia ohmi” ammonite zones and normal palaeomagnetic chron upper M5. A c. 30-cm-thick bed is identified as the equivalent of the Faraoni Level, based on its position within the Pseudothurmannia mortilleti Sub- 13 zone, the composition of its ammonite fauna and the peak of a minor positive trend in the δ Cbulk record. Microfa- cies and geochemical proxies compare well with those of the southeastern part of the Trento Plateau and indicate palaeoceanographic continuity along the eastern margin of the plateau. The abundances of radiolarians and nanno- conids suggest a turnover in the trophic structure from eutrophic conditions around the Faraoni Level equivalent to oligotrophic conditions.
  • 03-Alekseev and Goreva (Neognathodus).P65

    03-Alekseev and Goreva (Neognathodus).P65

    Lucas, S.G., et al. eds., 2013, The Carboniferous-Permian Transition. New Mexico Museum of Natural History and Science, Bulletin 60. 1 THE CONODONT NEOGNATHODUS BOTHROPS MERRILL, 1972 AS THE MARKER FOR THE LOWER BOUNDARY OF THE MOSCOVIAN STAGE (MIDDLE PENNSYLVANIAN) ALEXANDER S. ALEKSEEV1 AND NATALIA V. GOREVA 2 1 Department of Paleontology, Geological Faculty, Moscow State University, Russia, email: aaleks@geol. msu.ru; 2 Geological institute of Russian Academy of Science, Moscow, Russia, email: [email protected] Abstract—The Moscovian Stage constitutes the Middle Pennsylvanian Series of the Carboniferous System, but a biostratigraphic marker and GSSP for it have not yet been designated. The exact position of the Moscovian boundary cannot be defined properly because in the type area the basal Vereian unconformably overlies the Mississippian limestone or the alluvial and lagoonal Aza Formation of the uppermost Bashkirian. The Task Group to establish a GSSP close to the existing Bashkirian-Moscovian boundary suggested several potential markers among foraminifers and conodonts, but the search for a marker near traditional base of the global Moscovian Stage has stalled. It may be more productive to search for FADs in the lower Moscovian, above the traditional base, to designate the lower boundary of the stage. Relatively rich Vereian and Kashirian conodont assemblages have been recovered from the southwest Moscow Basin, as well as from the Oka-Tsna Swell. The most complete information on the distribution of conodonts in the Vereian- Kashirian boundary interval was obtained from the Yambirno section (Oka-Tsna Swell). The greatest change in conodont assemblages does not occur near the level of the traditional base of the Moscovian, but stratigraphically higher.
  • Russian National Committee for Igcp

    Russian National Committee for Igcp

    RUSSIAN NATIONAL COMMITTEE FOR IGCP ANNUAL REPORT ON IGCP ACTIVITIES FOR 2014 This report informs on the Russia’s activities in the IGCP projects in 2014. Chairman: Prof. Mikhail A. Fedonkin Russian National Committee for IGCP GIN RAS, Pyzhevsky, 7, 119017 Moscow, Russia Tel: + 7 495 951-75-00/ 8 495 953 37 91 Fax: +7 495 953 37 64 E- mail: [email protected] The current Committee’s membership comprises twenty four members including the following Bureau members: Mikhail A. Fedonkin (Chairman, Geological Institute, GIN RAS); Igor D. Ryabchikov (Vice Chairman, Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry, IGEM RAS); Oleg A. Bogatikov (Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry, IGEM RAS); Eric M. Galimov (Vernadsky Institute of Geochemistry and Analytical Chemistry , GEOKHI RAS ); Alexander O. Gliko (Institute of Physics of the Earth, RAS); Yury G. Leonov (Geological Institute, GIN RAS). Projects with Russian co-leaders: Project 587 Entity, Facies and Time – the Ediacaran (Vendian) Puzzle (2010-2014), Leaders: Mikhail Fedonkin (Russia), Patricia Vickers-Rich (Australia), Jim Gehling (Australia), Guy Narbonne (Canada) Project 592 Continental construction in Central Asia (2012-2015), Leaders: Inna Safonova (Russia), Reimar Seltmann (UK), Min Sun (China) Project 596 Climate Change and Biodiversity Patterns in the Mid-Paleozoic (2011-2015). Leaders: Peter Konigshof (Germany), Thomas G. Suttner (Austria), Iliana A. Boncheva (Bulgaria), Nadezhda G. Izokh (Russia), Phuong Ta Hoa (Vietnam), Thasinee Charoentitirat (Thailand), Johny A. Waters (USA), Wolfgang Kiessling (Germany). Project 609 Cretaceous Sea-Level Changes (2013-2017). Leaders: M.Wagreich (Austria), X.Hu (China), S.Voigt (Germany, J.J.
  • Microbialite-Dominated Fossil Associations in Cipit Boulders from Alpe Di Specie and Misurina (St. Cassian Formation, Middle to Upper Triassic, Dolomites, NE Italy)

    Microbialite-Dominated Fossil Associations in Cipit Boulders from Alpe Di Specie and Misurina (St. Cassian Formation, Middle to Upper Triassic, Dolomites, NE Italy)

    PUBLICACIÓN CONTINUA ARTÍCULO ORIGINAL © 2019 Universidad Nacional Autónoma de México, Facultad de Estudios Superiores Zaragoza. This is an Open Access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). TIP Revista Especializada en Ciencias Químico-Biológicas, 22: 1-18, 2019. DOI: 10.22201/fesz.23958723e.2019.0.171 Microbialite-dominated fossil associations in Cipit Boulders from Alpe di Specie and Misurina (St. Cassian Formation, Middle to Upper Triassic, Dolomites, NE Italy) Francisco Sánchez-Beristain1* and Joachim Reitner2 1Museo de Paleontología, Facultad de Ciencias, Universidad Nacional Autónoma de México. Circuito Exterior S/N. Ciudad Universitaria. Coyoacán 04510. Ciudad de México, México. 2Geowissenschaftliches Zentrum der Universität Göttingen, Abt. Geobiologie, Goldschmidtstraße 3. 37077 Göttingen, Germany. E-mail: *[email protected] Abstract In this paper we describe four new fossil associations of “reef” and “reef”-like environments of the St. Cassian Formation (Ladinian-Carnian, Dolomites, NE Italy), based on thirty thin sections from 10 “Cipit boulders” olistoliths, which slided from the Cassian platform into coeval basin sediments. The fossil associations were determined by means of microfacies analysis using point-counting and visual estimation, as well as with aid of statistical methods, based on all fractions with a biotic significance (biomorpha and microbialites). Cluster Analyses in Q-Mode were performed, coupling three algorithms and two indices. In all samples, the main components of the framework are microbialite (average of 75%), and macrofossils (average of 20%), whereas cements and allochtonous components, such as allomicrite, do not represent a significant fraction. Based on both microbialite and fossil content, Chaetetid–microencruster Association, Microbialite–microencruster Association, Dual-type Microbialite Association and Microbialite–Terebella Association, were differentiated.
  • Conodont Faunas Across the Mid-Carboniferous Boundary From

    Conodont Faunas Across the Mid-Carboniferous Boundary From

    Conodont faunas across the mid-Carboniferous boundary from the Barcaliente Formation at La Lastra (Palentian Zone, Cantabrian Mountains, northwest Spain); geological setting, sedimentological characters and faunal descriptions T.I. Nemyrovska, R.H. Wagner, C.F. Winkler Prins & I. Montañez Nemyrovska, T.I., Wagner, R.H., Winkler Prins, C.F. & Montañez, I. Conodont faunas across the mid- Carboniferous boundary from the Barcaliente Formation at La Lastra (Palentian Zone, Cantabrian Mountains, northwest Spain); geological setting, sedimentological characters and faunal descriptions. Scripta Geologica, 143: 127-183, 8 figs., 4 pls, 1 table, Leiden, December 2011. Tamara I. Nemyrovska, Institute of Geological Sciences, National Academy of Sciences of Ukraine, Gonchar Str., 55-b, 01054 Kiev, Ukraine ([email protected]); Robert H. Wagner, Centro Paleobotánico, IMGEMA Jardín Botánico de Córdoba, Avenida de Linneo s/n, E 14004 Córdoba, Spain (cr1wagro@uco. es); Cor F. Winkler Prins, NCB Naturalis, Postbus 9517, 2300 RA Leiden, The Netherlands (Cor.Winkler@ ncbnaturalis.nl); Isabel Montañez, Department of Geology, University of California, Davis, CA 95616, U.S.A. (ipmontañ[email protected]). Keywords — Serpukhovian, Bashkirian, biostratigraphy, palaeoecology. Two different tectono-stratigraphic domains are recognised in the Cantabrian Mountains, Asturian-Leo- nese (Cantabrian Zone) and Palentian (Palentian Zone). The area under investigation belongs to the south- ern part of the Palentian Domain and attention is focused on the Upper Viséan to lowermost Bashkirian limestones at the village of La Lastra in northern Palencia. A new geological map of the Palentian Zone is accompanied by a more detailed map centred on La Lastra. The Barcaliente Limestone Formation (Ser- pukhovian to lowermost Bashkirian) occurs in the overturned limb of a recumbent anticline which consti- tutes the head of a south-verging major thrust unit, the Carrionas Thrust Sheet (Palentian Zone).
  • How to Cite Complete Issue More Information About This Article

    How to Cite Complete Issue More Information About This Article

    TIP. Revista especializada en ciencias químico-biológicas ISSN: 1405-888X ISSN: 2395-8723 Universidad Nacional Autónoma de México, Facultad de Estudios Superiores, Plantel Zaragoza Sánchez-Beristain, Francisco; Reitner, Joachim Microbialite-dominated fossil associations in Cipit Boulders from Alpe di Specie and Misurina (St. Cassian Formation, Middle to Upper Triassic, Dolomites, NE Italy) TIP. Revista especializada en ciencias químico-biológicas, vol. 22, 2019 Universidad Nacional Autónoma de México, Facultad de Estudios Superiores, Plantel Zaragoza DOI: 10.22201/fesz.23958723e.2019.0.171 Available in: http://www.redalyc.org/articulo.oa?id=43265210003 How to cite Complete issue Scientific Information System Redalyc More information about this article Network of Scientific Journals from Latin America and the Caribbean, Spain and Journal's webpage in redalyc.org Portugal Project academic non-profit, developed under the open access initiative PUBLICACIÓN CONTINUA ARTÍCULO ORIGINAL © 2019 Universidad Nacional Autónoma de México, Facultad de Estudios Superiores Zaragoza. This is an Open Access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). TIP Revista Especializada en Ciencias Químico-Biológicas, 22: 1-18, 2019. DOI: 10.22201/fesz.23958723e.2019.0.171 Microbialite-dominated fossil associations in Cipit Boulders from Alpe di Specie and Misurina (St. Cassian Formation, Middle to Upper Triassic, Dolomites, NE Italy) Francisco Sánchez-Beristain1* and Joachim Reitner2 1Museo de Paleontología, Facultad de Ciencias, Universidad Nacional Autónoma de México. Circuito Exterior S/N. Ciudad Universitaria. Coyoacán 04510. Ciudad de México, México. 2Geowissenschaftliches Zentrum der Universität Göttingen, Abt. Geobiologie, Goldschmidtstraße 3. 37077 Göttingen, Germany. E-mail: *[email protected] Abstract In this paper we describe four new fossil associations of “reef” and “reef”-like environments of the St.
  • Pennsylvanian Boundary Unconformity in Marine Carbonate Successions

    Pennsylvanian Boundary Unconformity in Marine Carbonate Successions

    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Dissertations & Theses in Earth and Atmospheric Earth and Atmospheric Sciences, Department of Sciences Summer 6-2014 ORIGIN AND DISTRIBUTION OF THE MISSISSIPPIAN – PENNSYLVANIAN BOUNDARY UNCONFORMITY IN MARINE CARBONATE SUCCESSIONS WITH A CASE STUDY OF THE KARST DEVELOPMENT ATOP THE MADISON FORMATION IN THE BIGHORN BASIN, WYOMING. Lucien Nana Yobo University of Nebraska-Lincoln, [email protected] Follow this and additional works at: http://digitalcommons.unl.edu/geoscidiss Part of the Geochemistry Commons, Geology Commons, Sedimentology Commons, and the Stratigraphy Commons Nana Yobo, Lucien, "ORIGIN AND DISTRIBUTION OF THE MISSISSIPPIAN – PENNSYLVANIAN BOUNDARY UNCONFORMITY IN MARINE CARBONATE SUCCESSIONS WITH A CASE STUDY OF THE KARST DEVELOPMENT ATOP THE MADISON FORMATION IN THE BIGHORN BASIN, WYOMING." (2014). Dissertations & Theses in Earth and Atmospheric Sciences. 59. http://digitalcommons.unl.edu/geoscidiss/59 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 Dissertations & Theses in Earth and Atmospheric Sciences by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. ORIGIN AND DISTRIBUTION OF THE MISSISSIPPIAN – PENNSYLVANIAN BOUNDARY UNCONFORMITY IN MARINE CARBONATE SUCCESSIONS WITH A CASE STUDY OF THE KARST DEVELOPMENT ATOP THE MADISON FORMATION IN THE BIGHORN BASIN, WYOMING. By Luscalors Lucien Nana Yobo A THESIS Presented to the Faculty of The Graduate College at the University of Nebraska In Partial Fulfillment of Requirements For the Degree of Master of Science Major: Earth and Atmospheric Sciences Under the Supervision of Professor Tracy D.
  • Carboniferous Formations and Faunas of Central Montana

    Carboniferous Formations and Faunas of Central Montana

    Carboniferous Formations and Faunas of Central Montana GEOLOGICAL SURVEY PROFESSIONAL PAPER 348 Carboniferous Formations and Faunas of Central Montana By W. H. EASTON GEOLOGICAL SURVEY PROFESSIONAL PAPER 348 A study of the stratigraphic and ecologic associa­ tions and significance offossils from the Big Snowy group of Mississippian and Pennsylvanian rocks UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1962 UNITED STATES DEPARTMENT OF THE INTERIOR STEWART L. UDALL, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director The U.S. Geological Survey Library has cataloged this publication as follows : Eastern, William Heyden, 1916- Carboniferous formations and faunas of central Montana. Washington, U.S. Govt. Print. Off., 1961. iv, 126 p. illus., diagrs., tables. 29 cm. (U.S. Geological Survey. Professional paper 348) Part of illustrative matter folded in pocket. Bibliography: p. 101-108. 1. Paleontology Montana. 2. Paleontology Carboniferous. 3. Geology, Stratigraphic Carboniferous. I. Title. (Series) For sale by the Superintendent of Documents, U.S. Government Printing Office Washington 25, B.C. CONTENTS Page Page Abstract-__________________________________________ 1 Faunal analysis Continued Introduction _______________________________________ 1 Faunal relations ______________________________ 22 Purposes of the study_ __________________________ 1 Long-ranging elements...__________________ 22 Organization of present work___ __________________ 3 Elements of Mississippian affinity.._________ 22 Acknowledgments--.-------.- ___________________
  • Schmitz, M. D. 2000. Appendix 2: Radioisotopic Ages Used In

    Schmitz, M. D. 2000. Appendix 2: Radioisotopic Ages Used In

    Appendix 2 Radioisotopic ages used in GTS2020 M.D. SCHMITZ 1285 1286 Appendix 2 GTS GTS Sample Locality Lat-Long Lithostratigraphy Age 6 2s 6 2s Age Type 2020 2012 (Ma) analytical total ID ID Period Epoch Age Quaternary À not compiled Neogene À not compiled Pliocene Miocene Paleogene Oligocene Chattian Pg36 biotite-rich layer; PAC- Pieve d’Accinelli section, 43 35040.41vN, Scaglia Cinerea Fm, 42.3 m above base of 26.57 0.02 0.04 206Pb/238U B2 northeastern Apennines, Italy 12 29034.16vE section Rupelian Pg35 Pg20 biotite-rich layer; MCA- Monte Cagnero section (Chattian 43 38047.81vN, Scaglia Cinerea Fm, 145.8 m above base 31.41 0.03 0.04 206Pb/238U 145.8, equivalent to GSSP), northeastern Apennines, Italy 12 28003.83vE of section MCA/84-3 Pg34 biotite-rich layer; MCA- Monte Cagnero section (Chattian 43 38047.81vN, Scaglia Cinerea Fm, 142.8 m above base 31.72 0.02 0.04 206Pb/238U 142.8 GSSP), northeastern Apennines, Italy 12 28003.83vE of section Eocene Priabonian Pg33 Pg19 biotite-rich layer; MASS- Massignano (Oligocene GSSP), near 43.5328 N, Scaglia Cinerea Fm, 14.7 m above base of 34.50 0.04 0.05 206Pb/238U 14.7, equivalent to Ancona, northeastern Apennines, 13.6011 E section MAS/86-14.7 Italy Pg32 biotite-rich layer; MASS- Massignano (Oligocene GSSP), near 43.5328 N, Scaglia Cinerea Fm, 12.9 m above base of 34.68 0.04 0.06 206Pb/238U 12.9 Ancona, northeastern Apennines, 13.6011 E section Italy Pg31 Pg18 biotite-rich layer; MASS- Massignano (Oligocene GSSP), near 43.5328 N, Scaglia Cinerea Fm, 12.7 m above base of 34.72 0.02 0.04 206Pb/238U
  • This Article Was Published in an Elsevier Journal. the Attached Copy

    This Article Was Published in an Elsevier Journal. the Attached Copy

    This article was published in an Elsevier journal. The attached copy is furnished to the author for non-commercial research and education use, including for instruction at the author’s institution, sharing with colleagues and providing to institution administration. Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier’s archiving and manuscript policies are encouraged to visit: http://www.elsevier.com/copyright Author's personal copy Available online at www.sciencedirect.com Earth-Science Reviews 85 (2007) 47–81 www.elsevier.com/locate/earscirev A review of the Late Cambrian (Furongian) palaeogeography in the western Mediterranean region, NW Gondwana ⁎ J. Javier Álvaro a,b, , Annalisa Ferretti c, Cristina González-Gómez a, Enrico Serpagli d, M. Franco Tortello e, Marco Vecoli b, Daniel Vizcaïno f a Departamento Ciencias de la Tierra, Universidad de Zaragoza, 50009-Zaragoza, Spain b Laboratoire ‘Paléontologie et Paléogéographie du Paléozoïque’, UMR 8014 CNRS, Université de Lille I, 59655-Villeneuve d'Ascq, France c Dipartimento di Scienze della Terra, Università di Modena e Reggio Emilia, largo S. Eufemia 19, 41100-Modena, Italy d Dipartimento del Museo di Paleobiologia e dell'Orto Botanico, Università di Modena e Reggio Emilia, Via Università 4, 41100-Modena, Italy e Departamento Paleozoología Invertebrados, Museo de Ciencias Naturales, Paseo del Bosque s/n°, 1900-La Plata, Argentina f 7 rue Jean-Baptiste Chardin, Maquens, 11090-Carcassonne, France Received 18 December 2006; accepted 25 June 2007 Available online 6 August 2007 Abstract The Cambrian–Ordovician transition of the western Mediterranean region (NW Gondwana) is characterized by the record of major erosive unconformities with gaps that range from a chronostratigraphic stage to a series.