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Biostratigraphy and Paleoecology of Continental Tertiary Vertebrate Faunas in the Lower Rhine Embayment (NW-Germany)
Netherlands Journal of Geosciences / Geologie en Mijnbouw 81 (2): 177-183 (2002) Biostratigraphy and paleoecology of continental Tertiary vertebrate faunas in the Lower Rhine Embayment (NW-Germany) Th. Mors Naturhistoriska Riksmuseet/Swedish Museum of Natural History, Department of Palaeozoology, P.O. Box 50007, SE-104 05 Stockholm, Sweden; e-mail: [email protected] Manuscript received: October 2000; accepted: January 2002 ^ Abstract This paper discusses the faunal content, the mammal biostratigraphy, and the environmental ecology of three important con tinental Tertiary vertebrate faunas from the Lower Rhine Embayment. The sites investigated are Rott (MP 30, Late Oligocene), Hambach 6C (MN 5, Middle Miocene), Frechen and Hambach 11 (both MN 16, Late Pliocene). Comparative analysis of the entire faunas shows the assemblages to exhibit many conformities in their general composition, presumably re sulting from their preference for wet lowlands. It appears that very similar environmental conditions for vertebrates reoc- curred during at least 20 Ma although the sites are located in a tectonically active region with high subsidence rates. Differ ences in the faunal composition are partly due to local differences in the depositional environment of the sites: lake deposits at the margin of the embayment (Rott), coal swamp and estuarine conditions in the centre of the embayment (Hambach 6C), and flood plain environments with small rivulets (Frechen and Hambach 1 l).The composition of the faunal assemblages (di versity and taxonomy) also documents faunal turnovers with extinctions and immigrations (Oligocene/Miocene and post- Middle Miocene), as a result of changing climate conditions. Additional vertebrate faunal data were retrieved from two new assemblages collected from younger strata at the Hambach mine (Hambach 11C and 14). -
Vorläufige Mitteilungen Zur Bearbeitung Der Fossilen Schildkröten Der Fundstelle Höwenegg
©Staatl. Mus. f. Naturkde Karlsruhe & Naturwiss. Ver. Karlsruhe e.V.; download unter www.zobodat.at carolinea, 44:47-50, 2 Abb.; Karlsruhe, 29. 12. 1986 47 H a n s H e r m a n n S c h l e ic h Vorläufige Mitteilungen zur Bearbeitung der fossilen Schildkröten der Fundstelle Höwenegg Kurzfassung arbeiteten Sumpfschildkröte ( Em ydidae ind.) liegen lei Die Fundstelle Höwenegg (Hegau, Südwestdeutschland) liefer der nur fünf fragmentäre Peripheralia vor. te eine überraschend artenreiche Schildkrötenfauna. Ihre Bear Bezüglich des stratigraphisch jungen Alters der Fund beitung wird unsere Kenntnisse der stratigraphischen Reich stelle verwundert das Faunenspektrum, bzw. das ge weite und der Ökologie einzelner Arten bedeutend erweitern. meinsame Vorkommen der erwähnten Schildkrötenta Abstract xa. Dabei konnten bislang folgende Formen vorläufig The Höwenegg locality (Hegau, SW-Germany) yielded a turtle bestimmt werden: ?Testudo, Cheirogaster, Chelydrop fauna surprisingly rich in species. Scrutinous research work sis, Trionyx und Em ydidae indet. Bezüglich der Gattun which is still to be done will result in a substantial contribution to gen ?Testudo, Trionyx und Chelydropsis erscheint de the knowledge of the ecology and stratigraphic range of those ren Vorkommen mit diesem, bislang stratigraphisch species. jüngsten Nachweis für Süddeutschland, noch nahelie gend, sind doch alle drei Gattungen zusammen noch bis Autor MN 8 nachweisbar (s. Schleich , 1985). Überraschend Dr. H. H. Schleich , Institut für Paläontologie und historische Geologie -
Sulfide Formation Related to Changes in the Hydrothermal System on Loihi Seamount, Hawai’I, Following the Seismic Event in 1996
457 The Canadian Mineralogist Vol. 41, pp. 457-472 (2003) SULFIDE FORMATION RELATED TO CHANGES IN THE HYDROTHERMAL SYSTEM ON LOIHI SEAMOUNT, HAWAI’I, FOLLOWING THE SEISMIC EVENT IN 1996 ALICÉ S. DAVIS§ AND DAVID A. CLAGUE Research and Development Division, Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, California 95039-9644, U.S.A. ROBERT A. ZIERENBERG Department of Geology, University of California, Davis, One Shields Avenue, Davis, California 95616-8605, U.S.A. C. GEOFFREY WHEAT Institute of Marine Sciences, University of Fairbanks, P.O. Box 475, Moss Landing, California 95039, and Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, California 95039-9644, U.S.A. BRIAN L. COUSENS Department of Earth Sciences, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada ABSTRACT Hydrothermal sulfide and sulfate minerals were discovered in sediment samples collected on the Rapid Response Cruise to Loihi Seamount, following a large swarm (>4000) of earthquakes in the summer of 1996. PISCES V submersible dives, con- ducted two months after the seismic event, discovered that part of the summit had collapsed to form a new pit crater. The sudden collapse of the summit crater resulted in a cataclysmic discharge of hydrothermal fluid, ejecting magmatic gases and sulfide crystals. The presence of wurtzite, pyrrhotite, and chalcopyrite indicate high-temperature fluids (>250°C), the first such occur- rence documented for an ocean-island volcano. The composition of the sulfide minerals is similar to that of sulfides from black smokers at mid-ocean ridges. Samples from barite-rich mounds, built after the initial cataclysmic discharge of the hydrothermal plume, resemble white smoker deposits from mid-ocean ridges. -
Conversing with Pelehonuamea: a Workshop Combining 1,000+ Years of Traditional Hawaiian Knowledge with 200 Years of Scientific Thought on Kīlauea Volcanism
Conversing with Pelehonuamea: A Workshop Combining 1,000+ Years of Traditional Hawaiian Knowledge with 200 Years of Scientific Thought on Kīlauea Volcanism Open-File Report 2017–1043 Version 1.1, June 2017 U.S. Department of the Interior U.S. Geological Survey Conversing with Pelehonuamea: A Workshop Combining 1,000+ Years of Traditional Hawaiian Knowledge with 200 Years of Scientific Thought on Kīlauea Volcanism Compiled and Edited by James P. Kauahikaua and Janet L. Babb Open-File Report 2017–1043 Version 1.1, June 2017 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior RYAN K. ZINKE, Secretary U.S. Geological Survey William H. Werkheiser, Acting Director U.S. Geological Survey, Reston, Virginia: 2017 First release: 2017 Revised: June 2017 (ver. 1.1) For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment—visit http://www.usgs.gov/ or call 1–888–ASK–USGS (1–888–275–8747). For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod/. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner. Suggested citation: Kauahikaua, J.P., and Babb, J.L., comps. and eds., Conversing with Pelehonuamea—A workshop combining 1,000+ years of traditional Hawaiian knowledge with 200 years of scientific thought on Kīlauea volcanism (ver. -
Universidad Nacional Del Comahue Centro Regional Universitario Bariloche
Universidad Nacional del Comahue Centro Regional Universitario Bariloche Título de la Tesis Microanatomía y osteohistología del caparazón de los Testudinata del Mesozoico y Cenozoico de Argentina: Aspectos sistemáticos y paleoecológicos implicados Trabajo de Tesis para optar al Título de Doctor en Biología Tesista: Lic. en Ciencias Biológicas Juan Marcos Jannello Director: Dr. Ignacio A. Cerda Co-director: Dr. Marcelo S. de la Fuente 2018 Tesis Doctoral UNCo J. Marcos Jannello 2018 Resumen Las inusuales estructuras óseas observadas entre los vertebrados, como el cuello largo de la jirafa o el cráneo en forma de T del tiburón martillo, han interesado a los científicos desde hace mucho tiempo. Uno de estos casos es el clado Testudinata el cual representa uno de los grupos más fascinantes y enigmáticos conocidos entre de los amniotas. Su inconfundible plan corporal, que ha persistido desde el Triásico tardío hasta la actualidad, se caracteriza por la presencia del caparazón, el cual encierra a las cinturas, tanto pectoral como pélvica, dentro de la caja torácica desarrollada. Esta estructura les ha permitido a las tortugas adaptarse con éxito a diversos ambientes (por ejemplo, terrestres, acuáticos continentales, marinos costeros e incluso marinos pelágicos). Su capacidad para habitar diferentes nichos ecológicos, su importante diversidad taxonómica y su plan corporal particular hacen de los Testudinata un modelo de estudio muy atrayente dentro de los vertebrados. Una disciplina que ha demostrado ser una herramienta muy importante para abordar varios temas relacionados al caparazón de las tortugas, es la paleohistología. Esta disciplina se ha involucrado en temas diversos tales como el origen del caparazón, el origen del desarrollo y mantenimiento de la ornamentación, la paleoecología y la sistemática. -
Preliminary Volcano-Hazard Assessment for Augustine Volcano, Alaska
DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY Preliminary Volcano-Hazard Assessment for Augustine Volcano, Alaska by Christopher F. Waythomas and Richard B. Waitt Open-File Report 98-106 This report is preliminary and subject to revision as new data become available. Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey Alaska Volcano Observatory Anchorage, Alaska 1998 U.S. DEPARTMENT OF THE INTERIOR BRUCE BABBITT, Secretary U.S. GEOLOGICAL SURVEY Thomas J. Casadevall, Acting Director For additional information: Copies of this report may be purchased from: U.S. Geological Survey U.S. Geological Survey Alaska Volcano Observatory Branch of Information Services 4200 University Drive Box 25286 Anchorage, AK 99508 Denver, CO 80225-0286 CONTENTS Summary of hazards at Augustine Volcano....................................... 1 Introduction ............................................................... 3 Purposeandscope ...................................................... 3 Physical setting of Augustine Volcano ...................................... 4 Relation to previous studies on Augustine hazards ............................. 5 Prehistoric eruptive history ................................................... 5 Historical eruptions ......................................................... 8 Hazardous phenomena at Augustine Volcano ..................................... 8 Volcanic hazards ....................................................... 12 Volcanicashclouds -
COV4 Meeting Schedule Monday, 23 January, 2006
COV4 Meeting Schedule Monday, 23 January, 2006 Sala 1 (large)† 8H15 Welcoming Statements 8H30 Invited Speaker M. Hall: LIVING WITH VOLCANOES 9H00 - 9H30 Invited Speaker A. Lavell: SOCIETY AND RISK: RISK MANAGEMENT AND VOLCANIC HAZARDS 9H30 - 10H00 Plenary Symposium IV-B: Monitoring Volcanoes J. EWERT: ASSESSING VOLCANIC THREAT AND PRIORITIZING VOLCANO MONITORING IN THE UNITED STATES 10H00 - Plenary Symposium II: Ash Falls and Aerosols 10H30 W. Rose: ASH-FALL AND AEROSOLS, AN OVERVIEW 10H30 - 11H00 Coffee Break Sala 1 (large) Sala 2 (medium) IV-B: Monitoring Volcanoes II: Ash Falls and Aerosols Chairs: J. Ewert, A. García, H. Kumagai & J. Chairs: J.-L. Le Pennec, C. Connor, T. Johnson Casadevall, D. Johnston & D. Schneider 11H00 - S. Carn: MONITORING GLOBAL VOLCANIC A. Neri: ASSESSING ASH FALL HAZARD 11H20 DEGASSING WITH OMI FROM WEAK EXPLOSIVE PLUMES 11H20 - C. Oppenheimer: NEW DEVELOPMENTS IN C. Bonadonna: PROBABILISTIC MODELLING 11H40 VOLCANIC GAS SURVEILLANCE OF TEPHRA DISPERSON 11H40 - B. Galle: DEVELOPMENT OF OPTICAL B. Houghton: PROXIMAL TEPHRA HAZARDS: 12H00 REMOTE SENSING INSTRUMENTS FOR RECENT ERUPTION STUDIES APPLIED TO VOLCANOLOGICAL APPLICATIONS VOLCANIC RISK IN THE AUCKLAND VOLCANIC FIELD, NEW ZEALAND 12H00-12H20 F. Donnadieu: ERUPTION DYNAMICS OF P. Baxter: GRAIN SIZE ANALYSIS OF ARENAL VOLCANO, COSTA RICA: INSIGHTS VOLCANIC ASH FOR THE ASSESSMENT OF FROM DOPPLER RADAR AND SEISMIC HEALTH HAZARD MEASUREMENTS 12H20 - 14H00 Lunch in the Centro Cultural Metropolitano- Plaza Grande IV-B: Monitoring-Cont. II: Ash- Cont. 14H00- A. Gerst: REAL-TIME 4D MONITORING OF D. Andronico: ASH EMISSIONS AT THE 14H20 ERUPTIVE PROCESSES WITH DOPPLER SUMMIT OF ETNA DURING THE 2004-05 RADARS- A NEW TOOL FOR HAZARDS FLANK ERUPTION MITIGATION AND VOLCANO SCIENCE 14H20-14H40 M. -
A Submarine Perspective of the Honolulu Volcanics, Oahu
Journal of Volcanology and Geothermal Research 151 (2006) 279–307 www.elsevier.com/locate/jvolgeores A submarine perspective of the Honolulu Volcanics, Oahu David A. Clague a,*, Jennifer B. Paduan a, William C. McIntosh b, Brian L. Cousens c, Alice´ S. Davis a, Jennifer R. Reynolds d a Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, CA 95039-9644, USA b New Mexico Geochronology Research Laboratory, N.M. Bureau of Geology, New Mexico Tech, 801 Leroy Place, Socorro, 87801-4796, USA c Ottawa-Carleton Geoscience Centre, Department of Earth Sciences, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6 d School of Fisheries and Ocean Sciences, West Coast and Polar Regions Undersea Research Center, University of Alaska Fairbanks, P.O. Box 757220, 213 O’Neill Building, Fairbanks, AK 99775, USA Accepted 15 July 2005 Available online 27 December 2005 Abstract Lavas and volcaniclastic deposits were observed and collected from 4 submarine cones that are part of the Honolulu Volcanics on Oahu, Hawaii. The locations of these and a few additional, but unsampled, vents demonstrate that nearly all the vents are located on or very close to the shoreline of Oahu, with the most distal vent just 12 km offshore. The clastic samples and outcrops range from coarse breccias to cross-bedded ash deposits and show that explosive volcanism at depths between about 350 and 590 m depth played a part in forming these volcanic cones. The eruptive styles appear to be dominantly effusive to strombolian at greater depths, but apparently include violent phreatomagmatic explosive activity at the shallower sites along the submarine southwest extension of the Koko Rift. -
Geomorphology 372 (2021) 107469
Geomorphology 372 (2021) 107469 Contents lists available at ScienceDirect Geomorphology journal homepage: www.elsevier.com/locate/geomorph Rapid flood intensification and environmental response of the Lower Meuse during the Allerød-Younger Dryas climate transition Fei Peng a,⁎, Ronald van Balen a,b, Christiaan Beets a, Cornelis Kasse a, Maarten Prins a, Nathalie Van der Putten a, Simon Troelstra a, Hessel Woolderink a, John Van der Woude a a Department of Earth Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, the Netherlands b TNO - Geological Survey of the Netherlands, Princetonlaan 6, 3584 CB Utrecht, the Netherlands article info abstract Article history: Lateglacial climatic oscillations exerted profound impacts on the Meuse fluvial system. In the Lower Meuse Received 7 April 2020 (southern Netherlands), geomorphological studies in the last decades mainly centred on Lateglacial vegetation Received in revised form 5 September 2020 evolution, channel pattern changes and river terrace formation. Little information has been reported about the Accepted 6 October 2020 paleohydrology and its relation with the regional climate conditions. This study investigates a sediment core Available online 9 October 2020 that contains flood sediments deposited from the early Allerød up to the middle Holocene. We conducted grain size analysis, thermogravimetric analysis (organic matter and calcium carbonate content), pollen and mac- Keywords: Grain-size distribution rofossil analysis, and determined the oxygen and carbon stable isotope ratios of biogenic carbonate (opercula of 14 End-member modelling the freshwater gastropod Bithynia tentaculata). The chronology of the core is based on AMS Cdatingandpollen Lateglacial biostratigraphical correlation. The pollen and macrofossil studies reveal that the core site was a lake environment Lower Meuse flood during the Allerød and Younger Dryas periods. -
Mclean, D. Et Al. (2020) Refining the Eruptive History of Ulleungdo and Changbaishan Volcanoes (East Asia) Over the Last 86 Kyrs Using Distal Sedimentary Records
McLean, D. et al. (2020) Refining the eruptive history of Ulleungdo and Changbaishan volcanoes (East Asia) over the last 86 kyrs using distal sedimentary records. Journal of Volcanology and Geothermal Research, 389, 106669. (doi:10.1016/j.jvolgeores.2019.106669) There may be differences between this version and the published version. You are advised to consult the publisher’s version if you wish to cite from it. http://eprints.gla.ac.uk/205001/ Deposited on: 04 December 2019 Enlighten – Research publications by members of the University of Glasgow http://eprints.gla.ac.uk REFINING THE ERUPTIVE HISTORY OF ULLEUNGDO AND CHANGBAISHAN VOLCANOES (EAST ASIA) OVER THE LAST 86 KYRS USING DISTAL SEDIMENTARY RECORDS DANIELLE MCLEAN*a, PAUL G ALBERTa, TAKEHIKO SUZUKIb, TAKESHI NAKAGAWAc, JUN-ICHI KIMURAd, QING CHANGd, ALISON MACLEODe,f, SIMON BLOCKLEYe, RICHARD A STAFFa,g, KEITARO YAMADAc, IKUKO KITABAc, TSUYOSHI HARAGUCHIh, JUNKO KITAGAWAi, SG14 PROJECT MEMBERSj AND VICTORIA C SMITHa a Research Laboratory for Archaeology and the History of Art, University of Oxford, Oxford, OX1 3TG, UK b Department of Geography, Tokyo Metropolitan University, Tokyo, 192-0397, Japan c Research Centre for Palaeoclimatology, Ritsumeikan University, Shiga, 525-8577, Japan d Department of Solid Earth Geochemistry, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan e Department of Geography, Royal Holloway University of London, TW20 OEX, UK f Department of Geography and Environmental Science, University of Reading, RG66AB, UK g Scottish Universities Environmental Research Centre, University of Glasgow, East Kilbride, G75 0QF, UK h Osaka City University, Osaka, 558-8585, Japan i Fukui Prefectural Satoyama-Satoumi Research Institute, Wakasa, 919-1331 Japan j www.suigetsu.org *Corresponding author: [email protected] Highlights: • Distal records show eruptions are more frequent and widespread • At least 8 Changbaishan eruptions produced widespread ash over the last 86 kyrs • Explosive eruption of Changbaishan at ca. -
Volcanic Arc of Kamchatka: a Province with High-␦18O Magma Sources and Large-Scale 18O/16O Depletion of the Upper Crust
Geochimica et Cosmochimica Acta, Vol. 68, No. 4, pp. 841–865, 2004 Copyright © 2004 Elsevier Ltd Pergamon Printed in the USA. All rights reserved 0016-7037/04 $30.00 ϩ .00 doi:10.1016/j.gca.2003.07.009 Volcanic arc of Kamchatka: a province with high-␦18O magma sources and large-scale 18O/16O depletion of the upper crust 1, 2 3 1 ILYA N. BINDEMAN, *VERA V. PONOMAREVA, JOHN C. BAILEY, and JOHN W. VALLEY 1Department of Geology and Geophysics, University of Wisconsin, Madison, WI, USA 2Institute of Volcanic Geology and Geochemistry, Petropavlovsk-Kamchatsky, Russia 3Geologisk Institut, University of Copenhagen, Copenhagen, Denmark (Received March 20, 2003; accepted in revised form July 16, 2003) Abstract—We present the results of a regional study of oxygen and Sr-Nd-Pb isotopes of Pleistocene to Recent arc volcanism in the Kamchatka Peninsula and the Kuriles, with emphasis on the largest caldera- forming centers. The ␦18O values of phenocrysts, in combination with numerical crystallization modeling (MELTS) and experimental fractionation factors, are used to derive best estimates of primary values for ␦18O(magma). Magmatic ␦18O values span 3.5‰ and are correlated with whole-rock Sr-Nd-Pb isotopes and major elements. Our data show that Kamchatka is a region of isotopic diversity with high-␦18O basaltic magmas (sampling mantle to lower crustal high-␦18O sources), and low-␦18O silicic volcanism (sampling low-␦18O upper crust). Among one hundred Holocene and Late Pleistocene eruptive units from 23 volcanic centers, one half represents low-␦18O magmas (ϩ4 to 5‰). Most low-␦ 18O magmas are voluminous silicic ignimbrites related to large Ͼ10 km3 caldera-forming eruptions and subsequent intracaldera lavas and domes: Holocene multi-caldera Ksudach volcano, Karymsky and Kurile Lake-Iliinsky calderas, and Late Pleistocene Maly Semyachik, Akademy Nauk, and Uzon calderas. -
First Circular
First Circular http://imc.csp.escience.cn/ The 6th International Maar Conference Introduction The Local Organizing Committee and the International Association of Volcanology and Chemistry of Earth´s Interior (IAVCEI) will be pleased to welcome you to the 6th International Maar Conference (IMC) in Changchun (China) in 30 July – 3 August, 2016. The Conference will have 4 days of themed oral and poster sessions and an intra-meeting field trip. The proposed sessions of the conference focus on Maar and Environment Change, covering a wide spectrum of very interesting topics including characteristics, mechanism, modeling and geological background of Monogenetic volcanic activities; volcanic evolution and spatial distribution regulation, resources, disaster, detecting, monitoring and societal responses of volcanic activity. The aim of this First Circular is to provide the participants with more detailed information on the program, organization, and logistics, and about travel and hotel reservation. A Second Circular, with the Scientific Program and last-minute practical details, will be distributed closer to the start of the conference. Conference Language The official language of the conference will be English. Call for Abstracts Abstracts must be in English. All abstracts must be submitted on-line before 30 April, 2016. The accepted abstracts will be placed on the homepage of the conference. Outline of the Program Registration: 30 July, 2016 (Saturday) Registration (8:30 – 21:30) Welcome Reception (18:30 – 20:30) Conference: 31 July – 3 August, 2016 (Sunday to Wednesday) Session 1. Monogenetic volcanoes: growth, geomorphology and degradation Session 2. Sedimentary sequence and paleoclimate record of Maar Session 3. Maar lake evolution Session 4.