Arctic Science Summit Week Assw 2009
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New Siberian Islands Archipelago)
Detrital zircon ages and provenance of the Upper Paleozoic successions of Kotel’ny Island (New Siberian Islands archipelago) Victoria B. Ershova1,*, Andrei V. Prokopiev2, Andrei K. Khudoley1, Nikolay N. Sobolev3, and Eugeny O. Petrov3 1INSTITUTE OF EARTH SCIENCE, ST. PETERSBURG STATE UNIVERSITY, UNIVERSITETSKAYA NAB. 7/9, ST. PETERSBURG 199034, RUSSIA 2DIAMOND AND PRECIOUS METAL GEOLOGY INSTITUTE, SIBERIAN BRANCH, RUSSIAN ACADEMY OF SCIENCES, LENIN PROSPECT 39, YAKUTSK 677980, RUSSIA 3RUSSIAN GEOLOGICAL RESEARCH INSTITUTE (VSEGEI), SREDNIY PROSPECT 74, ST. PETERSBURG 199106, RUSSIA ABSTRACT Plate-tectonic models for the Paleozoic evolution of the Arctic are numerous and diverse. Our detrital zircon provenance study of Upper Paleozoic sandstones from Kotel’ny Island (New Siberian Island archipelago) provides new data on the provenance of clastic sediments and crustal affinity of the New Siberian Islands. Upper Devonian–Lower Carboniferous deposits yield detrital zircon populations that are consistent with the age of magmatic and metamorphic rocks within the Grenvillian-Sveconorwegian, Timanian, and Caledonian orogenic belts, but not with the Siberian craton. The Kolmogorov-Smirnov test reveals a strong similarity between detrital zircon populations within Devonian–Permian clastics of the New Siberian Islands, Wrangel Island (and possibly Chukotka), and the Severnaya Zemlya Archipelago. These results suggest that the New Siberian Islands, along with Wrangel Island and the Severnaya Zemlya Archipelago, were located along the northern margin of Laurentia-Baltica in the Late Devonian–Mississippian and possibly made up a single tectonic block. Detrital zircon populations from the Permian clastics record a dramatic shift to a Uralian provenance. The data and results presented here provide vital information to aid Paleozoic tectonic reconstructions of the Arctic region prior to opening of the Mesozoic oceanic basins. -
NATIONAL PROTECTED AREAS of the RUSSIAN FEDERATION: of the RUSSIAN FEDERATION: AREAS PROTECTED NATIONAL Vladimir Krever, Mikhail Stishov, Irina Onufrenya
WWF WWF is one of the world’s largest and most experienced independent conservation WWF-Russia organizations, with almost 5 million supporters and a global network active in more than 19, bld.3 Nikoloyamskaya St., 100 countries. 109240 Moscow WWF’s mission is to stop the degradation of the planet’s natural environment and to build a Russia future in which humans live in harmony with nature, by: Tel.: +7 495 727 09 39 • conserving the world’s biological diversity Fax: +7 495 727 09 38 • ensuring that the use of renewable natural resources is sustainable [email protected] • promoting the reduction of pollution and wasteful consumption. http://www.wwf.ru The Nature Conservancy The Nature Conservancy - the leading conservation organization working around the world to The Nature Conservancy protect ecologically important lands and waters for nature and people. Worldwide Office The mission of The Nature Conservancy is to preserve the plants, animals and natural 4245 North Fairfax Drive, Suite 100 NNATIONALATIONAL PPROTECTEDROTECTED AAREASREAS communities that represent the diversity of life on Earth by protecting the lands and waters Arlington, VA 22203-1606 they need to survive. Tel: +1 (703) 841-5300 http://www.nature.org OOFF TTHEHE RRUSSIANUSSIAN FFEDERATION:EDERATION: MAVA The mission of the Foundation is to contribute to maintaining terrestrial and aquatic Fondation pour la ecosystems, both qualitatively and quantitatively, with a view to preserving their biodiversity. Protection de la Nature GGAPAP AANALYSISNALYSIS To this end, it promotes scientific research, training and integrated management practices Le Petit Essert whose effectiveness has been proved, while securing a future for local populations in cultural, 1147 Montricher, Suisse economic and ecological terms. -
Mueller Epsl.Pdf
Earth and Planetary Science Letters 306 (2011) 137–148 Contents lists available at ScienceDirect Earth and Planetary Science Letters journal homepage: www.elsevier.com/locate/epsl Towards quantitative sea ice reconstructions in the northern North Atlantic: A combined biomarker and numerical modelling approach Juliane Müller a,⁎, Axel Wagner a,b, Kirsten Fahl a, Ruediger Stein a, Matthias Prange b,c, Gerrit Lohmann a,b a Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany b University of Bremen, Germany c MARUM, Center for Marine Environmental Sciences, Bremen, Germany article info abstract Article history: Organic geochemical analyses of marine surface sediments from the continental margins of East Greenland Received 24 November 2010 and West Spitsbergen provide for a biomarker-based estimate of recent sea ice conditions in the northern Received in revised form 4 April 2011 North Atlantic. By means of the sea ice proxy IP25 and phytoplankton derived biomarkers (e.g. brassicasterol Accepted 14 April 2011 and dinosterol) we reconstruct sea ice and sea surface conditions, respectively. The combination of IP with a Available online 2 May 2011 25 phytoplankton marker (in terms of a phytoplankton marker-IP25 index; PIP25) proves highly valuable to Editor: P. DeMenocal properly interpret the sea ice proxy signal as an under- or overestimation of sea ice coverage can be circumvented. A comparison of this biomarker-based assessment of the sea ice distribution in the study area Keywords: with (1) modern remote sensing data and (2) numerical modelling results reveal a good agreement between Northern North Atlantic organic geochemical, satellite and modelling observations. The reasonable simulation of modern sea ice sea ice conditions by means of a regional ocean–sea ice model demonstrates the feasibility to effectively integrate the biomarkers complex atmospheric and oceanic circulation features as they prevail in the study area. -
041-2011-Abstracts-BOE-III-Crete.Pdf
Boreskov Institute of Catalysis of the Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia Institute of Cytology and Genetics of the Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia Borissiak Paleontological Institute of Russian Academy of Sciences, Moscow, Russia III International Conference “Biosphere Origin and Evolution” RETHYMNO, CRETE, GREECE OCTOBER 16-20, 2011 ABSTRACTS Novosibirsk, 2011 © Boreskov Institute of Catalysis, 2011 INTERNATIONAL SCIENTIFIC COMMITTEE Alexei Rozanov, Borissiak Paleontological Institute RAS, Moscow, Russia Co‐Chairman Georgii Zavarzin, Institute of Microbiology RAS, Moscow, Russia Co‐Chairman Vadim Agol Moscow State University, Russia Yury Chernov Severtsov Institute of Ecology and Evolution, Moscow, Russia Institute of Protein Research RAS, Pushchino, Moscow region, Alexander Chetverin Russia David Deamer Biomolecular Engineering, School of Engineering, Santa Cruz, USA V.S. Sobolev Institute of Geology and Mineralogy SB RAS, Nikolay Dobretsov Novosibirsk, Russia Mikhail Fedonkin Geological Institute RAS, Moscow, Russia Siegfried Franck Potsdam Institute for Climate Impact Research, Germany V.I. Vernadskii Institute of Geochemistry and Analytical Chemistry Eric Galimov RAS, Moscow, Russia Mikhail Grachev Limnological Institute SB RAS, Irkutsk, Russia Richard Hoover Nasa Marshall Space Flight Ctr., Huntsville, USA North‐Western Scientific Center RAS, St. Petersburg State Sergey Inge‐Vechtomov University, Russia Trofimuk Institute of Petroleum‐Gas Geology and Geophysics Alexander Kanygin SB RAS, Novosibirsk, Russia Astrospace Centre of Lebedev Physical Institute RAS, Moscow, Nikolay Kardashev Russia Józef Kaźmierczak Institute of Paleobiology PAN, Warsaw, Poland Nikolay Kolchanov Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia Trofimuk Institute of Petroleum‐Gas Geology and Geophysics Alexei Kontorovich SB RAS, Novosibirsk, Russia National Center for Biotechnology Information, National Library Eugene V. -
Abrupt Cold Events in the North Atlantic Ocean in a Transient Holocene Simulation
Clim. Past, 14, 1165–1178, 2018 https://doi.org/10.5194/cp-14-1165-2018 © Author(s) 2018. This work is distributed under the Creative Commons Attribution 4.0 License. Abrupt cold events in the North Atlantic Ocean in a transient Holocene simulation Andrea Klus1, Matthias Prange1, Vidya Varma2, Louis Bruno Tremblay3, and Michael Schulz1 1MARUM – Center for Marine Environmental Sciences and Faculty of Geosciences, University of Bremen, Bremen, Germany 2National Institute of Water and Atmospheric Research, Wellington, New Zealand 3Department of Atmospheric and Oceanic Sciences, McGill University, Montreal, Canada Correspondence: Andrea Klus ([email protected]) Received: 25 August 2017 – Discussion started: 25 September 2017 Accepted: 16 July 2018 – Published: 14 August 2018 Abstract. Abrupt cold events have been detected in nu- 1 Introduction merous North Atlantic climate records from the Holocene. Several mechanisms have been discussed as possible trig- Holocene climate variability in the North Atlantic at differ- gers for these climate shifts persisting decades to centuries. ent timescales has been discussed extensively during the past Here, we describe two abrupt cold events that occurred dur- decades (e.g., Kleppin et al., 2015; Drijfhout et al., 2013; ing an orbitally forced transient Holocene simulation us- Hall et al., 2004; Schulz and Paul, 2002; Hall and Stouffer, ing the Community Climate System Model version 3. Both 2001; Bond et al., 1997, 2001; O’Brien et al., 1995; Wanner events occurred during the late Holocene (4305–4267 BP and et al., 2001, 2011). North Atlantic cold events can be accom- 3046–3018 BP for event 1 and event 2, respectively). They panied by sea ice drift from the Nordic Seas and the Labrador were characterized by substantial surface cooling (−2.3 and Sea towards the Iceland Basin as well as by changes in the −1.8 ◦C, respectively) and freshening (−0.6 and −0.5 PSU, Atlantic Meridional Overturning Circulation (AMOC). -
Diversity Patterns of Modern Arctic and Antarctic Bryozoans
Title Diversity Patterns of Modern Arctic and Antarctic Bryozoans Author(s) Schäfer, Priska Edited by Hisatake Okada, Shunsuke F. Mawatari, Noriyuki Suzuki, Pitambar Gautam. ISBN: 978-4-9903990-0-9, 57- Citation 66 Issue Date 2008 Doc URL http://hdl.handle.net/2115/38438 Type proceedings Note International Symposium, "The Origin and Evolution of Natural Diversity". 1‒5 October 2007. Sapporo, Japan. File Information p57-66-origin08.pdf Instructions for use Hokkaido University Collection of Scholarly and Academic Papers : HUSCAP Diversity Patterns of Modern Arctic and Antarctic Bryozoans Priska Schäfer* Institut für Geowissenschaften, Universität Kiel, Ludewig-Meyn-Strasse 10, D-24118 Kiel, Germany ABSTRACT A comparison of Arctic Sea and Antarctic Sea bryozoan faunas (cheilostomes) was conducted by compiling comprehensive data sets from both realms [1, 2] and own additional collections from the European Sector of the Arctic Realm. The analysis documents the high endemism in Antarctic faunas also indicated by the high species/genera relationship compared to the extremely reduced endemism in the Arctic Realm. These different patterns are explained by the long-lasting geo- graphic isolation of the Antarctic continent due to tectonic break-up of the Gondwana continent in contrast to the Arctic Ocean, which since the Neogene became a transit system to promote migra- tion of bryozoan species between the North Atlantic and North Pacific oceans. Cluster analysis was applied to identify the biogeographic regions within the two polar realms. Keywords: Bryozoa, Arctic Realm, Antarctic Realm, Biodiversity, Biogeography The different geological histories of the Arctic INTRODUCTION and Antarctic Oceans help to explain the differences Bryozoans are abundant constituents in modern in evolutionary history of the benthos. -
Tundra Times 2011
Polar Basin Ecoregions | PBI Beginnings | Tips from a Scientist The Annual Newsmagazine of Polar Bears International Fall 2011 The Arctic Becomes a Melting Pot Population at Risk Tundra Connections how it all began inside It all started with a round of snotch—scotch served over snow—in an early version of a Tundra Buggy® at Cape Churchill on Hudson Bay. Outside, two male polar bears sparred in the snow, testing their strength in mock battles. As photographer and biologist Dan Guravich and a band of fellow polar bear enthusiasts watched the powerful males, they talked about the idea of a nonprofit group to focus on the needs of polar bears, the iconic symbol of the North and an animal revered by A SHORT HISTORY OF PBI HISTORY A SHORT native peoples. It was 1991. Within a year, they founded Polar Bears Alive— what we now call 4 Polar Bears Interna- tional® (PBI). Today, PBI is the worldwide champion for polar bears, just as Guravich envi- © Richard Beck © Richard sioned. Today, PBI is the only organiza- The so-called Muktuk was once the site of many 6 tion focusing solely snotch-filled evenings. This photo from the 90s on polar bears and demonstrates that the primitive conditions of early bear- their arctic habitat. watching trips did little to dampen the enthusiasm of pioneering Cape travelers—and once offered ever- “When Dan formed curious bears an object of interest. PBI, scientists were only beginning to suspect that something was wrong,” says PBI President and CEO Robert Buchanan. “About a year later, in 1993, scientists Ian Stirling and Andrew Derocher published the first paper suggesting a possible link between climate warming and polar bear health. -
Arctic Tipping Points Contents
Editors Carlos M. Duarte Paul Wassmann Creative Coordinator Manuel Elviro Vidal Contributors Susana Agustí Connie Lovejoy Miquel Alcaraz Aqqaluk Lynge Rudi Caeyers Alicia Rivera Yearn Hong Choi Terje Roalkvam Ramon Dachs Camille Seaman Carlos M. Duarte Mikael Sejr Irene Fernández Arvid Sveen Elisabeth Halvorsen David N. Thomas Johnna Holding Manuel Elviro Vidal Dorte Krause-Jensen Warwick F. Vincent Isabelle Laurion Paul Wassmann The BBVA Foundation’s decision to publish this book does not imply and responsibility for its content, or for the inclusion therein of any supplementary documents or information facilitated by the authors. Contents No part of this publication, including the cover design, may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, without the prior written permission of the copyright holder. Acknowledgements. 11 Presentation . 12 Introduction . 14 The digital version of this book can be found at <http://www.fbbva.es/>, a website that offers a visual journey through the book’s images and texts, providing links to related areas of interest. 1. A Changing World . 24 A Pentagon to Building the Future Arctic. Carlos M. Duarte . 27 A Frozen Ship. Carlos M. Duarte . 29 The Locomotive of Progress. Carlos M. Duarte . 31 First published January 2011 Is There Anybody Out There? Carlos M. Duarte . 33 Artifi cial Sunflower. Dorte Krause-Jensen . 35 Thawed Landscapes. Isabelle Laurion . 37 © of the texts: their authors, 2011 Sailing In. Carlos M. Duarte . 39 © of the photographs: their authors, 2011 © Fundación BBVA, 2011 2. A Sea of Ice . 40 Plaza de San Nicolás, 4. -
Russian-German Cooperation in the Siberian Shelf Seas: Geo-System Laptev-Sea
Russian-German Cooperation in the Siberian Shelf Seas: Geo-System Laptev-Sea Edited by Heidemarie Kassens, Hans-Wolfgang Hubberten Sergey M. Pryamikov, RüdigeStein Ber. Polarforsch. 144 (1 994) ISSN 0176 - 5027 edited by H. Kassens GEOMAR Research Center for Marine Geosciences, Kiel, Germany, H.W. Hubberten Alfred-Wegener-Institute for Polar and Marine Research, Potsdam, Germany, S. M. Pryamikov Arctic and Antarctic Research Institute, St. Petersburg, Russia, and R. Stein Alfred-Wegener-Institute for Polar and Marine Research, Bremerhaven, Germany TABLE OF CONTENTS Preface ...........................................................................................................i Liste of authors and participants ..............................................................iv Prologue and Scientific Perspectives for the Project 'Laptev Sea System' .....................................................................................vii Oceanography, biology, and climatology of the Laptev Sea and the East Siberian Sea .......................................................................................... 1 Alekseev, G. V. The Arctic Seas in the Arctic climate system ..................................................3 Schauer, U. The Arctic shelves: their role in water mass formation ...................................9 Timokhov, L.A. Regional characteristics of the Laptev and the East Siberian seas: climate, topography, ice phases, thermohaline regime, and circulation .....................15 Zakharo V, V.F. On the character of cause-effect -
High-Resolution Record of Late Glacial and Deglacial Sea Ice Changes In
Earth and Planetary Science Letters 403 (2014) 446–455 Contents lists available at ScienceDirect Earth and Planetary Science Letters www.elsevier.com/locate/epsl High-resolution record of late glacial and deglacial sea ice changes in Fram Strait corroborates ice–ocean interactions during abrupt climate shifts ∗ Juliane Müller , Ruediger Stein Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Alten Hafen 26, 27568 Bremerhaven, Germany a r t i c l e i n f o a b s t r a c t Article history: The transition from last glacial to deglacial and subsequently to modern interglacial climate conditions Received 18 December 2013 was accompanied by abrupt shifts in the palaeoceanographic setting in the subpolar North Atlantic. Received in revised form 7 July 2014 Knowledge about the role that sea ice coverage played during these rapid climate reversals is limited Accepted 14 July 2014 since most marine sediment cores from the higher latitudes provide only a coarse temporal resolution Available online 21 August 2014 and often poorly preserved microfossils. Here we present a highly resolved reconstruction of sea ice Editor: J. Lynch-Stieglitz conditions that characterised the eastern Fram Strait – a key area for water mass exchange between Keywords: the Arctic Ocean and the North Atlantic – for the past 30 ka BP. This reconstruction is based on the sea ice distribution of the sea ice biomarker IP25 and phytoplankton derived biomarkers in a sediment core subpolar North Atlantic from the continental slope of western Svalbard. During the late glacial (30 ka to 19 ka BP), recurrent LGM advances and retreats of sea ice characterised the study area and point to a hitherto less considered Heinrich Event 1 oceanic (and/or atmospheric) variability. -
Putin's 'Eastern Pivot': Divergent Ambitions Between Russia and China? Evidence from the Arctic Thomas E
Journal of Global Initiatives: Policy, Pedagogy, Perspective Volume 12 Article 8 Number 1 Russia Relations in Today's World January 2018 Putin's 'Eastern Pivot': Divergent Ambitions between Russia and China? Evidence from the Arctic Thomas E. Rotnem Kennesaw State University, [email protected] Kristina Minkova St. Petersburg State University, [email protected] Follow this and additional works at: https://digitalcommons.kennesaw.edu/jgi Part of the Comparative Politics Commons, and the International Relations Commons This work is licensed under a Creative Commons Attribution 4.0 License. Recommended Citation Rotnem, Thomas E. and Minkova, Kristina (2018) "Putin's 'Eastern Pivot': Divergent Ambitions between Russia and China? Evidence from the Arctic," Journal of Global Initiatives: Policy, Pedagogy, Perspective: Vol. 12 : No. 1 , Article 8. Available at: https://digitalcommons.kennesaw.edu/jgi/vol12/iss1/8 This Article is brought to you for free and open access by DigitalCommons@Kennesaw State University. It has been accepted for inclusion in Journal of Global Initiatives: Policy, Pedagogy, Perspective by an authorized editor of DigitalCommons@Kennesaw State University. For more information, please contact [email protected]. Thomas E. Rotnem and Kristina V. Minkova Journal of Global Initiatives Vol. 12, No. 1, 2017, pp. 104-139. Putin’s “Eastern Pivot”: Divergent Ambitions between Russia and China? Evidence from the Arctic Thomas E. Rotnem and Kristina V. Minkova Abstract Focusing upon the warming Sino-Russian relationship in general, this paper also examines in particular both countries interests in the Arctic region. The paper begins with a brief overview of the developing Sino-Russian relationship since the late 1980s. -
Alaska Arctic Marine Fish Ecology Catalog
Prepared in cooperation with Bureau of Ocean Energy Management, Environmental Studies Program (OCS Study, BOEM 2016-048) Alaska Arctic Marine Fish Ecology Catalog Scientific Investigations Report 2016–5038 U.S. Department of the Interior U.S. Geological Survey Cover: Photographs of various fish studied for this report. Background photograph shows Arctic icebergs and ice floes. Photograph from iStock™, dated March 23, 2011. Alaska Arctic Marine Fish Ecology Catalog By Lyman K. Thorsteinson and Milton S. Love, editors Prepared in cooperation with Bureau of Ocean Energy Management, Environmental Studies Program (OCS Study, BOEM 2016-048) Scientific Investigations Report 2016–5038 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior SALLY JEWELL, Secretary U.S. Geological Survey Suzette M. Kimball, Director U.S. Geological Survey, Reston, Virginia: 2016 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. For an overview of USGS information products, including maps, imagery, and publications, visit http://store.usgs.gov. Disclaimer: This Scientific Investigations Report has been technically reviewed and approved for publication by the Bureau of Ocean Energy Management. The information is provided on the condition that neither the U.S. Geological Survey nor the U.S. Government may be held liable for any damages resulting from the authorized or unauthorized use of this information. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the opinions or policies of the U.S.