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Extent and Duration of Marine Anoxia During the Frasnian– Famennian (Late Devonian) Mass Extinction in Poland, Germany, Austria and France
This is a repository copy of Extent and duration of marine anoxia during the Frasnian– Famennian (Late Devonian) mass extinction in Poland, Germany, Austria and France. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/297/ Article: Bond, D.P.G., Wignall, P.B. and Racki, G. (2004) Extent and duration of marine anoxia during the Frasnian– Famennian (Late Devonian) mass extinction in Poland, Germany, Austria and France. Geological Magazine, 141 (2). pp. 173-193. ISSN 0016-7568 https://doi.org/10.1017/S0016756804008866 Reuse See Attached Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. [email protected] https://eprints.whiterose.ac.uk/ Geol. Mag. 141 (2), 2004, pp. 173–193. c 2004 Cambridge University Press 173 DOI: 10.1017/S0016756804008866 Printed in the United Kingdom Extent and duration of marine anoxia during the Frasnian– Famennian (Late Devonian) mass extinction in Poland, Germany, Austria and France DAVID BOND*, PAUL B. WIGNALL*† & GRZEGORZ RACKI‡ *School of Earth Sciences, University of Leeds, Leeds LS2 9JT, UK ‡Department of Palaeontology and Stratigraphy, University of Silesia, ul. Bedzinska 60, PL-41-200 Sosnowiec, Poland (Received 25 March 2003; accepted 10 November 2003) Abstract – The intensity and extent of anoxia during the two Kellwasser anoxic events has been investigated in a range of European localities using a multidisciplinary approach (pyrite framboid assay, gamma-ray spectrometry and sediment fabric analysis). -
Chapter 2 Paleozoic Stratigraphy of the Grand Canyon
CHAPTER 2 PALEOZOIC STRATIGRAPHY OF THE GRAND CANYON PAIGE KERCHER INTRODUCTION The Paleozoic Era of the Phanerozoic Eon is defined as the time between 542 and 251 million years before the present (ICS 2010). The Paleozoic Era began with the evolution of most major animal phyla present today, sparked by the novel adaptation of skeletal hard parts. Organisms continued to diversify throughout the Paleozoic into increasingly adaptive and complex life forms, including the first vertebrates, terrestrial plants and animals, forests and seed plants, reptiles, and flying insects. Vast coal swamps covered much of mid- to low-latitude continental environments in the late Paleozoic as the supercontinent Pangaea began to amalgamate. The hardiest taxa survived the multiple global glaciations and mass extinctions that have come to define major time boundaries of this era. Paleozoic North America existed primarily at mid to low latitudes and experienced multiple major orogenies and continental collisions. For much of the Paleozoic, North America’s southwestern margin ran through Nevada and Arizona – California did not yet exist (Appendix B). The flat-lying Paleozoic rocks of the Grand Canyon, though incomplete, form a record of a continental margin repeatedly inundated and vacated by shallow seas (Appendix A). IMPORTANT STRATIGRAPHIC PRINCIPLES AND CONCEPTS • Principle of Original Horizontality – In most cases, depositional processes produce flat-lying sedimentary layers. Notable exceptions include blanketing ash sheets, and cross-stratification developed on sloped surfaces. • Principle of Superposition – In an undisturbed sequence, older strata lie below younger strata; a package of sedimentary layers youngs upward. • Principle of Lateral Continuity – A layer of sediment extends laterally in all directions until it naturally pinches out or abuts the walls of its confining basin. -
The Geologic Time Scale Is the Eon
Exploring Geologic Time Poster Illustrated Teacher's Guide #35-1145 Paper #35-1146 Laminated Background Geologic Time Scale Basics The history of the Earth covers a vast expanse of time, so scientists divide it into smaller sections that are associ- ated with particular events that have occurred in the past.The approximate time range of each time span is shown on the poster.The largest time span of the geologic time scale is the eon. It is an indefinitely long period of time that contains at least two eras. Geologic time is divided into two eons.The more ancient eon is called the Precambrian, and the more recent is the Phanerozoic. Each eon is subdivided into smaller spans called eras.The Precambrian eon is divided from most ancient into the Hadean era, Archean era, and Proterozoic era. See Figure 1. Precambrian Eon Proterozoic Era 2500 - 550 million years ago Archaean Era 3800 - 2500 million years ago Hadean Era 4600 - 3800 million years ago Figure 1. Eras of the Precambrian Eon Single-celled and simple multicelled organisms first developed during the Precambrian eon. There are many fos- sils from this time because the sea-dwelling creatures were trapped in sediments and preserved. The Phanerozoic eon is subdivided into three eras – the Paleozoic era, Mesozoic era, and Cenozoic era. An era is often divided into several smaller time spans called periods. For example, the Paleozoic era is divided into the Cambrian, Ordovician, Silurian, Devonian, Carboniferous,and Permian periods. Paleozoic Era Permian Period 300 - 250 million years ago Carboniferous Period 350 - 300 million years ago Devonian Period 400 - 350 million years ago Silurian Period 450 - 400 million years ago Ordovician Period 500 - 450 million years ago Cambrian Period 550 - 500 million years ago Figure 2. -
The Truong Son, Loei-Phetchabun, and Kontum Terranes in Indochina: Provenance, Rifting, and Collisions
REVIEW published: 28 May 2021 doi: 10.3389/feart.2021.603565 The Truong Son, Loei-Phetchabun, and Kontum Terranes in Indochina: Provenance, Rifting, and Collisions Clive Burrett 1, Mongkol Udchachon 1,2* and Hathaithip Thassanapak 2 1 Palaeontological Research and Education Centre, Mahasarakham University, Mahasarakham, Thailand, 2 Applied Palaeontology and Biostratigraphy Research Unit, Department of Biology, Faculty of Science, Mahasarakham University, Mahasarakham, Thailand The three main regions of Indochina are defined as the Truong Son, Loei-Phetchabun, and Kontum terranes. The aim of this review is to integrate numerous petrological studies with sedimentary, palaeontological, and provenance studies in order to construct a preliminary tectonic model which shows the terranes docked in the earliest Carboniferous (Truong Son with Loei-Phetchabun) and in the Permian (Kontum). The Kontum Terrane is characterized by Proterozoic magmatism, mid-Ordovician to Early Devonian granites, and Permian charnockites. Major carbonate platforms developed in the Givetian to earliest Tournaisian on Truong Son and from the Visean to mid-Permian across Truong Edited by: Son and Loei-Phetchabun terranes. The Truong Son has Silurian granites and a Basilios Tsikouras, Late Ordovician to Silurian magmatic arc along its southern and western borders Universiti Brunei Darussalam, Brunei caused by subduction of oceanic lithosphere, the remnants of which are now partially Reviewed by: Antonio Pedrera, preserved in the Loei and Tamky sutures. A region to the east of the Loei Suture in Instituto Geológico y Minero de the Loei Foldbelt has a similar-age volcanic arc extending northwards into Laos and España (IGME), Spain Sergio Llana-Fúnez, is included in Truong Son. -
Devonian and Carboniferous Stratigraphical Correlation and Interpretation in the Central North Sea, Quadrants 25 – 44
CR/16/032; Final Last modified: 2016/05/29 11:43 Devonian and Carboniferous stratigraphical correlation and interpretation in the Orcadian area, Central North Sea, Quadrants 7 - 22 Energy and Marine Geoscience Programme Commissioned Report CR/16/032 CR/16/032; Final Last modified: 2016/05/29 11:43 CR/16/032; Final Last modified: 2016/05/29 11:43 BRITISH GEOLOGICAL SURVEY ENERGY AND MARINE GEOSCIENCE PROGRAMME COMMERCIAL REPORT CR/16/032 Devonian and Carboniferous stratigraphical correlation and interpretation in the Orcadian area, Central North Sea, Quadrants 7 - 22 K. Whitbread and T. Kearsey The National Grid and other Ordnance Survey data © Crown Copyright and database rights Contributor 2016. Ordnance Survey Licence No. 100021290 EUL. N. Smith Keywords Report; Stratigraphy, Carboniferous, Devonian, Central North Sea. Bibliographical reference WHITBREAD, K AND KEARSEY, T 2016. Devonian and Carboniferous stratigraphical correlation and interpretation in the Orcadian area, Central North Sea, Quadrants 7 - 22. British Geological Survey Commissioned Report, CR/16/032. 74pp. Copyright in materials derived from the British Geological Survey’s work is owned by the Natural Environment Research Council (NERC) and/or the authority that commissioned the work. You may not copy or adapt this publication without first obtaining permission. Contact the BGS Intellectual Property Rights Section, British Geological Survey, Keyworth, e-mail [email protected]. You may quote extracts of a reasonable length without prior permission, provided a full acknowledgement -
Permian Basin, West Texas and Southeastern New Mexico
Report of Investigations No. 201 Stratigraphic Analysis of the Upper Devonian Woodford Formation, Permian Basin, West Texas and Southeastern New Mexico John B. Comer* *Current address Indiana Geological Survey Bloomington, Indiana 47405 1991 Bureau of Economic Geology • W. L. Fisher, Director The University of Texas at Austin • Austin, Texas 78713-7508 Contents Abstract ..............................................................................................................................1 Introduction ..................................................................................................................... 1 Methods .............................................................................................................................3 Stratigraphy .....................................................................................................................5 Nomenclature ...................................................................................................................5 Age and Correlation ........................................................................................................6 Previous Work .................................................................................................................6 Western Outcrop Belt ......................................................................................................6 Central Texas ...................................................................................................................7 Northeastern Oklahoma -
Evaluating the Frasnian-Famennian Mass Extinction: Comparing Brachiopod Faunas
Evaluating the Frasnian-Famennian mass extinction: Comparing brachiopod faunas PAUL COPPER Copper, P. 1998. Evaluating the Frasnian-Famennian mass extinction: Comparing bra- chiopod faunas.- Acta Palaeontologica Polonica 43,2,137-154. The Frasnian-Famennian (F-F) mass extinctions saw the global loss of all genera belonging to the tropically confined order Atrypida (and Pentamerida): though Famen- nian forms have been reported in the literafure, none can be confirmed. Losses were more severe during the Givetian (including the extinction of the suborder Davidsoniidina, and the reduction of the suborder Lissatrypidina to a single genus),but ońgination rates in the remaining suborder surviving into the Frasnian kept the group alive, though much reduced in biodiversity from the late Earb and Middle Devonian. In the terminal phases of the late Palmatolepis rhenana and P linguifurmis zones at the end of the Frasnian, during which the last few Atrypidae dechned, no new genera originated, and thus the Atrypida were extĘated. There is no evidence for an abrupt termination of all lineages at the F-F boundary, nor that the Atrypida were abundant at this time, since all groups were in decline and impoverished. Atypida were well established in dysaerobic, muddy substrate, reef lagoonal and off-reef deeper water settings in the late Givetian and Frasnian, alongside a range of brachiopod orders which sailed through the F-F boundary: tropical shelf anoxia or hypońa seems implausible as a cause for aĘpid extinction. Glacial-interglacial climate cycles recorded in South Ameńca for the Late Devonian, and their synchronous global cooling effect in low latitudes, as well as loss of the reef habitat and shelf area reduction, remain as the most likely combined scenarios for the mass extinction events. -
Upper Devonian Depositional and Biotic Events in Western New York
MIDDLE- UPPER DEVONIAN DEPOSITIONAL AND BIOTIC EVENTS IN WESTERN NEW YORK Gordon C. Baird, Dept. of Geosciences, SUNY-Fredonia, Fredonia, NY 14063; D. Jeffrey Over, Dept. of Geological Sciences, SUNY-Geneseo, Geneseo, NY 14454; William T. Kirch gasser, Dept. of Geology, SUNY-Potsdam, Potsdam, NY 13676; Carlton E. Brett, Dept. of Geology, Univ. of Cincinnati, 500 Geology/Physics Bldg., Cincinnati, OH 45221 INTRODUCTION The Middle and Late Devonian succession in the Buffalo area includes numerous dark gray and black shale units recording dysoxic to near anoxic marine substrate conditions near the northern margin of the subsiding Appalachian foreland basin. Contrary to common perception, this basin was often not stagnant; evidence of current activity and episodic oxygenation events are characteristic of many units. In fact, lag deposits of detrital pyrite roofed by black shale, erosional runnels, and cross stratified deposits of tractional styliolinid grainstone present a counter intuitive image of episodic, moderate to high energy events within the basin. We will discuss current-generated features observed at field stops in the context of proposed models for their genesis, and we will also examine several key Late Devonian bioevents recorded in the Upper Devonian stratigraphic succession. In particular, two stops will showcase strata associated with key Late Devonian extinction events including the Frasnian-Famennian global crisis. Key discoveries made in the preparation of this field trip publication, not recorded in earlier literature, -
The Eifelian Givetian Boundary (Middle Devonian) at Tsakhir, Govi Altai Region, Southern Mongolia
23rd Annual Keck Symposium: 2010 Houston, Texas THE EIFELIAN GIVETIAN BOUNDARY (MIDDLE DEVONIAN) AT TSAKHIR, GOVI ALTAI REGION, SOUTHERN MONGOLIA NICHOLAS SULLIVAN State University of New York at Geneseo Faculty Advisor: D. Jeffrey Over INTRODUCTION AND PURPOSE GEOLOGIC SETTING The Devonian System (418.1±3.0 – 365.7±2.7 Ma) Badarch et al. (2002) argued that Mongolia consists is subdivided into three epochs, Lower, Middle, and of numerous terranes that were accreted onto small Upper, which are further subdivided into seven stag- Precambrian cratonic blocks in the Hangay Region es. The Middle Devonian is subdivided into the Eif- during the Paleozoic and Mesozoic. The focus of elian (391.9±3.4 – 388.1±2.6 Ma) and the Givetian this investigation are strata in a region recognized (388.1±2.6 - 383.7±3.1 Ma; Kaufmann, 2006). The as part of one of these accretionary wedges, which stage boundary is defined by the first appearance is referred to as the Gobi Altai Terrane (Figure 1; Ba- of Polygnathus hemiansatus at the Eifelian-Givetian darch et al., 2002; Minjin and Soja, 2009a). Badarch Stage Global Stratotype Section and Point (GSSP), et al. (2002) characterized the Gobi Altai Terrane as which is a section at Jebel Mech Irdane in the Tifilalt a backarc basin, as evidenced by abundant volcano- of Morocco (Walliser et al. 1995). At some sections, clastic sedimentary rocks. The volcanics within the the appearance of the goniatite Maenioceras undu- Gobi Altai Terrane are believed to be derived from latum has been used as a proxy for the boundary a prehistoric island arc represented by the Mandalo- (Kutcher and Schmidt, 1958). -
(Late Devonian) Boundary Within the Foreknobs Formation, Maryland and West Virginia
The Frasnian-Famennian (Late Devonian) boundary within the Foreknobs Formation, Maryland and West Virginia GEORGE R. McGHEE, JR. Department of Geological Sciences, University of Rochester, Rochester, New York 14627 ABSTRACT The approximate position of the Frasnian-Famennian (Late De- vonian) boundary is determined within the Foreknobs Formation along the Allegheny Front in Maryland and West Virginia by utiliz- ing the time ranges of the articulate brachiopods Athryis angelica Hall, Cyrtospirifer sulcifer (Hall), and members of the Atrypidae. INTRODUCTION The age of strata previously called the "Chemung Formation" along the Allegheny Front in Maryland and West Virginia (Fig. 1) has been of interest to Devonian wokers for some time. Recent at- tempts to resolve this problem include the works of Dennison (1970, 1971) and Curry (1975). New paleontological contribu- tions to the resolution of time relations within the Greenland Gap Group ("Chemung Formation") are the object of this paper, which is an outgrowth of a much larger ecological analysis of Late Devo- nian benthic marine fauna as preserved in the central Appalachians (McGhee, 1975, 1976). STRATIGRAPHIC SETTING The following is a condensation and summary of the evolution of Upper Devonian stratigraphic nomenclatural usage in the study Figure 1. Location map of study area, showing positions of the mea- area; for a more complete and thorough discussion, the reader is sured sections used in this study (after Dennison, 1970). referred to Dennison (1970) and Kirchgessner (1973). The Chemung Formation was originally designated by James lower Cohocton Stage." Elsewhere, concerning the upper limit of Hall (1839) from Chemung Narrows in south-central New York. -
GEOLOGIC TIME SCALE V
GSA GEOLOGIC TIME SCALE v. 4.0 CENOZOIC MESOZOIC PALEOZOIC PRECAMBRIAN MAGNETIC MAGNETIC BDY. AGE POLARITY PICKS AGE POLARITY PICKS AGE PICKS AGE . N PERIOD EPOCH AGE PERIOD EPOCH AGE PERIOD EPOCH AGE EON ERA PERIOD AGES (Ma) (Ma) (Ma) (Ma) (Ma) (Ma) (Ma) HIST HIST. ANOM. (Ma) ANOM. CHRON. CHRO HOLOCENE 1 C1 QUATER- 0.01 30 C30 66.0 541 CALABRIAN NARY PLEISTOCENE* 1.8 31 C31 MAASTRICHTIAN 252 2 C2 GELASIAN 70 CHANGHSINGIAN EDIACARAN 2.6 Lopin- 254 32 C32 72.1 635 2A C2A PIACENZIAN WUCHIAPINGIAN PLIOCENE 3.6 gian 33 260 260 3 ZANCLEAN CAPITANIAN NEOPRO- 5 C3 CAMPANIAN Guada- 265 750 CRYOGENIAN 5.3 80 C33 WORDIAN TEROZOIC 3A MESSINIAN LATE lupian 269 C3A 83.6 ROADIAN 272 850 7.2 SANTONIAN 4 KUNGURIAN C4 86.3 279 TONIAN CONIACIAN 280 4A Cisura- C4A TORTONIAN 90 89.8 1000 1000 PERMIAN ARTINSKIAN 10 5 TURONIAN lian C5 93.9 290 SAKMARIAN STENIAN 11.6 CENOMANIAN 296 SERRAVALLIAN 34 C34 ASSELIAN 299 5A 100 100 300 GZHELIAN 1200 C5A 13.8 LATE 304 KASIMOVIAN 307 1250 MESOPRO- 15 LANGHIAN ECTASIAN 5B C5B ALBIAN MIDDLE MOSCOVIAN 16.0 TEROZOIC 5C C5C 110 VANIAN 315 PENNSYL- 1400 EARLY 5D C5D MIOCENE 113 320 BASHKIRIAN 323 5E C5E NEOGENE BURDIGALIAN SERPUKHOVIAN 1500 CALYMMIAN 6 C6 APTIAN LATE 20 120 331 6A C6A 20.4 EARLY 1600 M0r 126 6B C6B AQUITANIAN M1 340 MIDDLE VISEAN MISSIS- M3 BARREMIAN SIPPIAN STATHERIAN C6C 23.0 6C 130 M5 CRETACEOUS 131 347 1750 HAUTERIVIAN 7 C7 CARBONIFEROUS EARLY TOURNAISIAN 1800 M10 134 25 7A C7A 359 8 C8 CHATTIAN VALANGINIAN M12 360 140 M14 139 FAMENNIAN OROSIRIAN 9 C9 M16 28.1 M18 BERRIASIAN 2000 PROTEROZOIC 10 C10 LATE -
Early Carboniferous) Examensarbete Vid Institutionen För Geovetenskaper
The Tournaisian (Early Carboniferous) Examensarbete vid Institutionen för geovetenskaper Foraminifers From the Kuznetsk Basin ISSN 1650-6553 Nr 303 (South-West Siberia, Russia): Taxonomy, Biometry, Biostratigraphy Clémentine Colpaert The Tournaisian (Early Carboniferous) Foraminifers From the Kuznetsk Basin Revised Tournaisian foraminiferal assemblages of Kuznetsk Basin (Siberia, Russia) provide new accurate stratigraphic correlations for the Taidon and (South-West Siberia, Russia): Fominskoe formations, and palaeobiogeographic hypotheses for western Siberia. Microfacies analyses of Old Belovo Quarry, Artyshta village Section as well as Taxonomy, Biometry, Biostratigraphy Starobachaty village Section reveal four main types of wackestone or packstone with different skeletal grains, some foraminifers and very rare incertae sedis algae. The environments of deposit may be reconstructed as located in distal parts of inner ramps and proximal parts of mid ramp. If the unilocular foraminifer are relatively abundant in all the microfacies, the plurilocular ones occur only in bioclastic neomicrosparitized wackestone deposited in the shallower parts of the carbonate ramp. As the Tournaisian inner ramp is narrow, and only preserved in the Old Belovo Quarry, the Taidon and Fominskoe formations yield quite rare plurilocular Clémentine Colpaert foraminifers. They belong mainly to the superfamily Septabrunsiinoidea, and more precisely to the genera Septabrunsiina and Pseudoplanoendothyra. Rarer Granuliferella and Endothyra are sporadically present. The presence of Granuliferella and some “Devonian” Lazarus-genera allow to correlate the Taidon Formation with the MFZ3 to MFZ5 biozones defined in the Belgian stratotypes, and its top, with Endothyra, to the biozones MFZ5 and/or MFZ6. The Fominskoe Formation, overlain by series previously dated as earliest Viséan, corresponds to the whole late Tournaisian (MFZ6-MFZ8).