Bockfjorden 2017

Total Page:16

File Type:pdf, Size:1020Kb

Bockfjorden 2017 SVALBARD 2017. BOCKFJORDEN EXPEDITION 1 Bockfjorden 2017 Interim Final Report Arctic Research Group Pushing through pack ice in Wahlenbergfjorden, Nordaustlandet. Photograph IFs SVALBARD 2017. BOCKFJORDEN EXPEDITION 2 Author Note This Interim Final Report has been compiled to meet the requirements of certain grant funding bodies whose conditions ask for a final report by December 2017. The Final Report proper will follow once analytical results from a number of research establishments have been received and consultations with other ARG members on the various areas and topics to be covered have been completed. It is assumed that anyone interested in these will appreciate that without the opportunity to complete these analyses and to subsequently undertake the assessment of these the whole trip, albeit truncated and seriously affected in its original form, would be seriously compromised. The offer of substantial savings on analyses and reporting have added to the delay, which has to fit in with say to day work activities The Group asks everyone interested in this to be patient and bear with us during the intervening period. Keywords: Bockfjord Svalbard July 2017 Arctic Research Group Abstract The original proposal for this expedition was four researchers to visit Bockfjorden, North Svalbard, during the month of July 2017 and to undertake a series of independent but interlinked projects in a variety of disciplines that would enable a better understanding to be made of the area. These projects in included the objectives that are to be found in more detail in the Group Prospectus, available on line on request from [email protected] . These may also be viewed on the Group website www.arcticresearchgroup.org :- SVALBARD 2017. BOCKFJORDEN EXPEDITION 3 Bockfjorden 2017 Planning took place over a period of two years to determine the nature and extent of the research proposals that were to be considered. A reconnaissance planned for 2016 was curtailed by two major factors. One was the lateness of the application for travel by the ARG. The other was the governing body in Svalbard, Sysselmannen På Svalbard, which refused permission for the planned helicopter trip on the grounds that it did not in itself provide any useful scientific function. A wasted trip by two members in summer 2016 meant therefore that the 2017 expedition was planned without the benefit of this essential part of the projects, which would have been most useful and beneficial in the planning of routes and proposed camp sites in order to minimize the effects of anthropogenic activity on the fragile ground. Proposed Area of Activity. Abstract from Map of Spitsbergen SVALBARD 2017. BOCKFJORDEN EXPEDITION 4 Personnel The Arctic Research Group chooses members for each expedition based on the project work to be undertaken. There are no freeloading places available. As such the personnel chosen for the 2017 expedition reflected the work to be undertaken. The final group were : Ian Frearson – ARG Group Leader. George (Haddon) Winter – Research assistant. Prof. Andrew J Hodson – Project Leader. Dr. Aga Nowak – Project leader. Travel and Transport Members used the daily SAS flights from the UK via Oso to Svalbard. Any fears we may have had regarding the taking of firearms were quickly forgotten as all the authorities seemed to be interested in was securing the money required to transfer these. Little time was wasted over the transfer from hand to secure accommodation. The next we saw of them was at Longyearbyen, Svalbard, where the case appeared in the special baggage conveyor. The ARG has worked alongside and in conjunction with Norsk Polarinstitutt in the past and this, together with meetings with their Chief of Operations, Håvard Hansen, allowed the Group to utilize the opportunity of transport out on Lance, NP Research Ship. This was particularly poignant since she was to be taken out of service in 2017 so we were to travel on her final work cruise. Since Lance would only be able to drop the group off in Bockfjord and time restraints were critical, two members were to return to Longyearbyen on a charter tourist ship visiting close to the research area (Liefdefjorden). Arrangements with two other groups, one from Imperial College the other from St. Catherine University Minnesota, which were also working on different aspects of the springs, were made for return transport for expedition freight and the remaining two members. In the end additional alternative arrangements had to be made due to unforeseen weather conditions and an enforced revised programme. Programme The initial programme was as set out below and, under favourable conditions, could have been achieved with little problems other than interference by unforeseen weather. As it transpired, these affected the proceedings more than could have possibly been anticipated. SVALBARD 2017. BOCKFJORDEN EXPEDITION 5 Initial Programme as planned Item Date Activity Comments 1 26 Jun International Travel Home – Oslo - Longyearbyen 2 27 Jun Make contacts Check freight Contact Norsk Polarinstitutt 3 28 jun Log in with Sysselmann, Obtain Travel Permit Repack & Load Make ready to travel to site 4 29 Jun Join Lance, Leave Longyearbyen Travel to Bockfjord 5 30 Jun Travel 6 1 Jul Travel 7 2 Jul Travel 8 3 Jul Arrive Bockfjord Offload to field site 9 4 Jul Locate site & build camp Choose best site with least effect 10 5 Jul Visit Jotun Springs Start sampling logging & photographs 11 6 Jul ditto Continue with sampling 12 7 Jul Visit Gygrekjelda Spring site Sampling logging & photographs 13 8 Jul Visit Troll Springs Assess Start sampling & logging 14 9 Jul ditto Continue sampling & photographs 15 10 Jul Photograph Friedrichbre Find old site & repeat photographs 16 11 Jul Extend camp to accommodate 2 persons to leave for return passage additional 9 persons Two other groups to arrive. 17 12 Jul Commence Ecology project Transects & quadrats of Jotun area 18 13 Jul Ditto Assess colonisation extent & type 19 14 Jul Commence Meteorite project Transport gear to Kaarlsbre 20 15 Jul Ditto Search ground for samples 21 16 Jul Move site Transport West towards Monacobre 22 17 Jul Observe Monacobre areas Look for drawdown of ice 23 18 Jul Return to Sverrefjellet site Set up for exploring Nygaardbre 24 19 Jul Search for ‘Lost’ spring & look for South side of lower moraine 25 20 Jul Colonisation of moraines Cover as much moraine as possible 26 21 Jul & recently exposed ground Seek colonisation evidence 27 22 Jul Break camp Preparation for return 28 23 Jul Travel Ship transport back to Longyear 29 24 Jul Travel 30 25 Jul Arrive LYB offload & sort Divide equipment & food & – that to return to UK, that to remain in Svalbard Depart Svalbard 02:30 26th Travel to Airport 23 :30 31 26 Jul Arrive LHR 09 :20 Travel back home 15 days of movement or planning, counted as ‘lost’ days, with 16 days of field work planned SVALBARD 2017. BOCKFJORDEN EXPEDITION 6 Thanks to abnormal sea ice conditions this was adjusted initially as below during the voyage on Lance to plan for what we thought might be the best case scenario. First Revised programme Item Date Activity Comments 1 26 Jun International Travel Home – Oslo - Longyearbyen 2 27 Jun Make contacts Check freight Contact Norsk Polarinstitutt 3 28 Jun Log in with Sysselmann Obtain Travel Permit Repack & Load Make ready to travel to site 4 29 Jun Join Lance, Leave Longyearbyen Travel to Bockfjord Anticlockwise 5 30 Jun On lance Travel Van Mijenfjord / Van Keulenfjord 6 1 Jul Ditto Travel Towards Sorkap 7 2 Jul Ditto Travel Hopen 8 3 Jul Ditto Travel Agardbukta & Hinlopen Strait 9 4 Jul Ditto Travel Wahlenbergfjord 10 5 Jul Ditto Travel Murchison Wijdefjord, Woodfjord 11 6 Jul Arrive Bockfjord Offload to field site 12 7 Jul Locate site & build camp Choose best site with least effect 13 8 Jul Visit Jotun Springs Start sampling logging & photographs 14 9 Jul Ditto 15 10 Jul Ditto 16 11 Jul Two leave for return to LYB Two other groups arrive. Co-ordinate Extend camp for other 9 projects with others 17 12 Jul Visit Troll Springs Sampling logging & photographs 18 13 Jul Ditto 19 14 Jul Ditto 20 15 Jul Commence Meteorite project Travel to Kaarlsbre 21 16 Jul Ditto Search area for samples 22 17 Jul Travel back calling at Nygaarbre Look for signs of ‘lost ‘ spring & for signs of recent plant colonisation 23 18 Jul Break camp & load to leave Commence return journey to LYB 24 19 Jul Ditto 25 20 Jul Arrive LYB Offload & transport to container 26 21 Jul Sort gear Preparation for leaving some equipment for further visits 27 22 Jul Clean & pack gear to remain Divide gear for being left in container 28 23 Jul Return hire gear Clean sort & return 29 24 Jul Relax Visit church, museum & other areas 30 25 Jul Arrange transport of freight back Divide equipment food & clothing to UK between that to remain in Svalbard & that Depart Svalbard 02:30 on 26th to return to UK. Return Permit to Sysselmann 31 26 Jul Arrive LHR 09:20 Travel back home SVALBARD 2017. BOCKFJORDEN EXPEDITION 7 20 days of travel & sorting leaving 11 days for fieldwork reduced science potential. This situation still considered viable and acceptable. Continued developments in both the initial conditions of sea ice and those enforced by problems encountered by other groups required a further serious plan to be adopted. In the end the planned period of almost three weeks in the field was reduced to under five whole days which is detailed below. This illustrates the frailty of plans when operating at such extremes of latitude. Second revised programme Item Date Activity Comments 1 26 Jun International Travel Home – Oslo - Longyearbyen 2 27 Jun Make contacts Check freight Contact Norsk Polarinstitutt 3 28 Jun Log in with Sysselmann Obtain Travel Permit Repack & Load Make ready to travel to site 4 29 Jun Join Lance, Leave Longyearbyen Travel to Bockfjord Anticlockwise 5 30 Jun Van-Mijenfjord / Van Keulenfjord Travel - see Whales, Blue + others 6 1 Jul Hopen Travel through increasing ice 7 2 Jul Agardbukta Travel through solid pack 8 3 Jul Wahlenbergfjord Travel through solid pack See bear on ice 9 4 Jul Arrive Bockfjord & assess Sea ice Three hours ashore taking samples at too much to remain.
Recommended publications
  • Handbok07.Pdf
    - . - - - . -. � ..;/, AGE MILL.YEAR$ ;YE basalt �- OUATERNARY votcanoes CENOZOIC \....t TERTIARY ·· basalt/// 65 CRETACEOUS -� 145 MESOZOIC JURASSIC " 210 � TRIAS SIC 245 " PERMIAN 290 CARBONIFEROUS /I/ Å 360 \....t DEVONIAN � PALEOZOIC � 410 SILURIAN 440 /I/ ranite � ORDOVICIAN T 510 z CAM BRIAN � w :::;: 570 w UPPER (J) PROTEROZOIC � c( " 1000 Ill /// PRECAMBRIAN MIDDLE AND LOWER PROTEROZOIC I /// 2500 ARCHEAN /(/folding \....tfaulting x metamorphism '- subduction POLARHÅNDBOK NO. 7 AUDUN HJELLE GEOLOGY.OF SVALBARD OSLO 1993 Photographs contributed by the following: Dallmann, Winfried: Figs. 12, 21, 24, 25, 31, 33, 35, 48 Heintz, Natascha: Figs. 15, 59 Hisdal, Vidar: Figs. 40, 42, 47, 49 Hjelle, Audun: Figs. 3, 10, 11, 18 , 23, 28, 29, 30, 32, 36, 43, 45, 46, 50, 51, 52, 53, 54, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 71, 72, 75 Larsen, Geir B.: Fig. 70 Lytskjold, Bjørn: Fig. 38 Nøttvedt, Arvid: Fig. 34 Paleontologisk Museum, Oslo: Figs. 5, 9 Salvigsen, Otto: Figs. 13, 59 Skogen, Erik: Fig. 39 Store Norske Spitsbergen Kulkompani (SNSK): Fig. 26 © Norsk Polarinstitutt, Middelthuns gate 29, 0301 Oslo English translation: Richard Binns Editor of text and illustrations: Annemor Brekke Graphic design: Vidar Grimshei Omslagsfoto: Erik Skogen Graphic production: Grimshei Grafiske, Lørenskog ISBN 82-7666-057-6 Printed September 1993 CONTENTS PREFACE ............................................6 The Kongsfjorden area ....... ..........97 Smeerenburgfjorden - Magdalene- INTRODUCTION ..... .. .... ....... ........ ....6 fjorden - Liefdefjorden................ 109 Woodfjorden - Bockfjorden........ 116 THE GEOLOGICAL EXPLORATION OF SVALBARD .... ........... ....... .......... ..9 NORTHEASTERN SPITSBERGEN AND NORDAUSTLANDET ........... 123 SVALBARD, PART OF THE Ny Friesland and Olav V Land .. .123 NORTHERN POLAR REGION ...... ... 11 Nordaustlandet and the neigh- bouring islands........................... 126 WHA T TOOK PLACE IN SVALBARD - WHEN? ....
    [Show full text]
  • Annual Report 2017 2 | Annual Report 2017
    ANNUAL REPORT 2017 2 | ANNUAL REPORT 2017 FROM THE DIRECTOR 4 EXCERPT FROM THE BOARD OF DIRECTORS’ REPORT 2017 5 EDUCATIONAL QUALITY 10 STATISTICS 11 PROFIT AND LOSS ACCOUNT 2017 12 BALANCE SHEET 31.12.2017 13 ARCTIC BIOLOGY 14 ARCTIC GEOLOGY 20 ARCTIC GEOPHYSICS 26 ARCTIC TECHNOLOGY 32 STUDENT COUNCIL 38 SCIENTIFIC PUBLICATIONS 2017 42 GUEST LECTURERS 2017 50 Front page | May 2017: AT-331/831 Arctic Environmental Pollution fieldwork in Mohnbukta, on the east coast of Spitsbergen. Photo: Richard Hann/UNIS. Editor | Eva Therese Jenssen/UNIS. ANNUAL REPORT 2017 | 3 NY-ÅLESUND LONGYEARBYEN BARENTSBURG SVEA HORNSUND SVALBARD Front page | May 2017: AT-331/831 Arctic Environmental Pollution fieldwork in Mohnbukta, on the east coast of Spitsbergen. Photo: Richard Hann/UNIS. Photo: Aleksey Shestov/UNIS. Editor | Eva Therese Jenssen/UNIS. 4 | ANNUAL REPORT 2017 FROM THE DIRECTOR UNIS continued to experience growth in 2017. In all, 794 students from 45 nations attended courses and 59 master’s students worked on their theses. This equates During the year, UNIS was very involved in the process to 222.5 student-labour years, which is a new record. of preparing the basis for the government’s strategy Consequently, publicfor research in the andspring higher of 2 018.education Furthermore, in Svalbard. the Board The of 50% of the Directorsgovernment at UNISis expected has initiated to make a newthe new strategic strategy process students came 2017from wasprogrammes the first year of study we achieved at Norwegian the for the institution. The background for this decision are target of 220 student-labour years. Moreover, publicuniversities defences (Norwegian were held.
    [Show full text]
  • Nordaust-Svalbard Og Søraust- Svalbard Naturreservater
    554 Nordaust-Svalbard og Søraust- Svalbard naturreservater Kunnskapsstatus for flora og vegetasjon Marianne Evju Stefan Blumentrath Dagmar Hagen NINAs publikasjoner NINA Rapport Dette er en elektronisk serie fra 2005 som erstatter de tidligere seriene NINA Fagrapport, NINA Oppdragsmelding og NINA Project Report. Normalt er dette NINAs rapportering til oppdragsgiver etter gjennomført forsknings-, overvåkings- eller utredningsarbeid. I tillegg vil serien favne mye av instituttets øvrige rapportering, for eksempel fra seminarer og konferanser, resultater av eget forsknings- og utredningsarbeid og litteraturstudier. NINA Rapport kan også utgis på annet språk når det er hensiktsmessig. NINA Temahefte Som navnet angir behandler temaheftene spesielle emner. Heftene utarbeides etter behov og serien favner svært vidt; fra systematiske bestemmelsesnøkler til informasjon om viktige problemstillinger i samfunnet. NINA Temahefte gis vanligvis en populærvitenskapelig form med mer vekt på illustrasjoner enn NINA Rapport. NINA Fakta Faktaarkene har som mål å gjøre NINAs forskningsresultater raskt og enkelt tilgjengelig for et større publikum. De sendes til presse, ideelle organisasjoner, naturforvaltningen på ulike nivå, politikere og andre spesielt interesserte. Faktaarkene gir en kort framstilling av noen av våre viktigste forskningstema. Annen publisering I tillegg til rapporteringen i NINAs egne serier publiserer instituttets ansatte en stor del av sine vitenskapelige resultater i internasjonale journaler, populærfaglige bøker og tidsskrifter. Norsk
    [Show full text]
  • Spitsbergen Nordaustlandet Polhavet Barentshavet
    5°0'0"E 10°0'0"E 15°0'0"E 20°0'0"E 25°0'0"E 30°0'0"E 35°0'0"E 81°0'0"N Polhavet Prins Oscars Land Orvin Land Vesle Tavleøya Gustav V Land Nordaustlandet Karl XII-øya Phippsøya Sjuøyane Gustav Adolf Land 80°0'0"N Martensøya Parryøya Kvitøyjøkulen Waldenøya Foynøya Nordkappsundet Kvitøya Repøyane Castrénøyane 434 433 ZorgdragerfjordenDuvefjorden Snøtoppen Nordenskiöldbukta Scoresbyøya Wrighttoppen Brennevinsfjorden 432 Laponiahalvøya Damflya Lågøya Storøya Kvitøyrenna Storøysundet Botniahalvøya Sabinebukta Orvin Land 437 Rijpfjorden Prins Lady Franklinfjorden Maudbreen Oscars Franklinsundet Worsleybreen Sverdrupisen 80°0'0"N Land Andrée Land Rijpbreen Albert I Land Norskebanken Ny-Friesland Storsteinhalvøya Olav V Land Franklinbreane James I Land Oscar II Land 401 Hinlopenrenna Haakon VII Land Gustav V Moffen Celsiusberget Murchisonfjorden Land Rijpdalen Søre Russøya Vestfonna Harald V Land Mosselhalvøya Austfonna Sorgfjorden 436 Heclahuken Gotiahalvøya Nordaustlandet Harald V Land Fuglesongen Oxfordhalvøya Breibogen Bragebreen Etonbreen IdunfjelletWahlenbergfjorden 435 Amsterdamøya Reinsdyrflya 427 Raudfjorden Balberget Hartogbukta Danskøya Vasahalvøya Smeerenburgfjorden Valhallfonna 79°0'0"N Ben Nevis 428 Woodfjorden Reuschhalvøya Palanderbukta Gustav Adolf Liefdefjorden Magdalenefjorden Åsgardfonna Albert I Glitnefonna Roosfjella Wijdefjorden Land 430 431 Hoelhalvøya Scaniahalvøya Land Bockfjorden Lomfjorden Hinlopenstretet Vibehøgdene Lomfjordhalvøya Svartstupa Monacobreen 429 Seidfjellet Svartknausflya Bråsvellbreen 402 Lomfjella Vibebukta
    [Show full text]
  • Svalbard July 4 – July 24, 2019
    SVALBARD A 21 DAYS POLAR BEAR SPECIAL JULY 4 - 24, 2019 ON BOARD M/S MALMÖ TOUR REPORT PARTICIPANTS Guests: Crew: Guides & Charterers: Bill Wirt Johannes Malmlund, captain Morten Jørgensen, guide & charterer Derek Holwill Lars Palm, chief officer Nozomi Takeyabu, guide & charterer Duncan Muir Johan Uddebrant, chief engineer Rinie van Meurs, expedition leader Graham Boulnois Christian Cocozza, chef Isa Jauss Jonathan Persson, AB Jenny Varley Karl Jonsson, AB JoAnne Simerson Lisa Rundberg, stewardess Richard Barrett Björn Arnemo, steward Rita Fryer Tolitha Lewis SUMMARY This 2019 marathon NozoMojo polar bears on ice odyssey, the second we have undertaken, was in many ways very different from our 2017 20-night voyage. The vessel was the same, and three of the guests too, but ev- erything else was different... The ice this year was relentless in its grip of the east, caus- ing us to spend just under half our time north of Spits- bergen and Nordaustlandet, only as far east as Sjuøyane (The Seven Islands), and more than half of our time in Hinlopenstretet and immediate surrounds. We had an outstanding amount of calm weather, which interchange- ably came with fog or with very clear conditions and ex- cellent visibility. As can be read below, our polar bear count was not too bad at all, with a few really excellent sighting and several intriguing repeat sightings of the same bears, sometimes in different locations. Our best bear sightings were on remnant fast ice or on land. The northern pack-ice mostly held old males. We noticed a lack of female bears with COYs and a strong overweight of male (usually disinterested) bears.
    [Show full text]
  • Pb-Pb Single-Zircon Ages of Granitoid Boulders from the Vendian Tillite of Wahlenbergfjorden, Nordaustlandet, Sv Albard
    Pb-Pb single-zircon ages of granitoid boulders from the Vendian tillite of Wahlenbergfjorden, Nordaustlandet, Sv albard ALEXANDER N. LARIONOV, ALEXANDER M. TEBENKOV and DAVID G. GEE Larionov A.N., Tebenkov A.M. & Gee D.G. 1998: Pb-Pb single-zircon ages of granitoid boulders from the Vendian tillite of Wahlenbergfjorden, Nordaustlandet, Svalbard. Polar Research, 17(1). 71-80. There are three areas in eastern Svalbard where Vendian tillites are exposed: eastern Ny Friesland. western Nordaustlandet (north and south of Murchisonfjorden) and further east in inner Wahlenbergfjorden, near Aldousbreen. Clasts within the massive unmetamorphosed clay-mica-carbonate matrix of the tillites include carbonates, sandstones, siltstones, metavolcanics. schists and different granitoids, the metamorphic and igneous rock types being more frequent in the upper levels of the formation. Large granite boulders, up to 1 m in diameter. are known from the easternmost outcrop at Aldousbreen. Three granitoid boulders from the Aldousbreen outcrop, differing in petrography and chemistiy. have been dated by the Pb-Pb single- zircon method. They yield ages of 2830 i 5 Ma, 1802 * 4 Ma and 1497 * 26 Ma. These clasts also differ in petrography, chemistry and age from all known granitic rocks on Nordaustlandet. which have recently yielded Grenvillian (950-960 Ma) and Caledonian (ca. 410 Ma) ages. The concentration of large granitic clasts in the easternmost known tillite ontcrops wggests derivation from the east and/or south. Possible areas include those beneath the ice of Austfonna and below the Carboniferous strata of southeastern Nordaustlandet. The apparent lack of a significant Grenvillian overprint suggests the possibility of a more distant source.
    [Show full text]
  • Nasjonsrelaterte Stedsnavn På Svalbard Hvilke Nasjoner Har Satt Flest Spor Etter Seg? NOR-3920
    Nasjonsrelaterte stedsnavn på Svalbard Hvilke nasjoner har satt flest spor etter seg? NOR-3920 Oddvar M. Ulvang Mastergradsoppgave i nordisk språkvitenskap Fakultet for humaniora, samfunnsvitenskap og lærerutdanning Institutt for språkvitenskap Universitetet i Tromsø Høsten 2012 Forord I mitt tidligere liv tilbragte jeg to år som radiotelegrafist (1964-66) og ett år som stasjonssjef (1975-76) ved Isfjord Radio1 på Kapp Linné. Dette er nok bakgrunnen for at jeg valgte å skrive en masteroppgave om stedsnavn på Svalbard. Seks delemner har utgjort halve mastergradsstudiet, og noen av disse førte meg tilbake til arktiske strøk. En semesteroppgave omhandlet Norske skipsnavn2, der noen av navna var av polarskuter. En annen omhandlet Språkmøte på Svalbard3, en sosiolingvistisk studie fra Longyearbyen. Den førte meg tilbake til øygruppen, om ikke fysisk så i hvert fall mentalt. Det samme har denne masteroppgaven gjort. Jeg har også vært student ved Universitetet i Tromsø tidligere. Jeg tok min cand. philol.-grad ved Institutt for historie høsten 2000 med hovedfagsoppgaven Telekommunikasjoner på Spitsbergen 1911-1935. Jeg vil takke veilederen min, professor Gulbrand Alhaug for den flotte oppfølgingen gjennom hele prosessen med denne masteroppgaven om stedsnavn på Svalbard. Han var også min foreleser og veileder da jeg tok mellomfagstillegget i nordisk språk med oppgaven Frå Amarius til Pardis. Manns- og kvinnenavn i Alstahaug og Stamnes 1850-1900.4 Jeg takker også alle andre som på en eller annen måte har hjulpet meg i denne prosessen. Dette gjelder bl.a. Norsk Polarinstitutt, som velvillig lot meg bruke deres database med stedsnavn på Svalbard, men ikke minst vil jeg takke min kjære Anne-Marie for hennes tålmodighet gjennom hele prosessen.
    [Show full text]
  • The Tonian-Cryogenian Transition in Northeastern Svalbard T Galen P
    Precambrian Research 319 (2018) 79–95 Contents lists available at ScienceDirect Precambrian Research journal homepage: www.elsevier.com/locate/precamres The Tonian-Cryogenian transition in Northeastern Svalbard T Galen P. Halversona, Marcus Kunzmannb,c, Justin V. Straussd, Adam C. Maloofe a Dept. of Earth and Planetary Sciences/Geotop, McGill University, 3450 University Street, Montréal, QC H3A 0E8, Canada b CSIRO Mineral Resources, Australian Resources Research Centre, Kensington, WA 6151, Australia c Northern Territory Geological Survey, Darwin, NT 0800, Australia d Dept. of Earth Sciences, Dartmouth College, HB6105 Fairchild Hall, Hanover, NH 03755, USA e Department of Geosciences, Princeton University, Guyot Hall, Washington Road, Princeton, NJ 08544, USA ARTICLE INFO ABSTRACT Keywords: The Neoproterozoic stratigraphic succession in northeastern Svalbard is uniquely important in documenting the Neoproterozoic evolution of Neoproterozoic life, seawater chemistry, and paleoenvironments. This contribution focuses on the Stratigraphy stratigraphic and geochemical records spanning from the late Tonian to the onset of Cryogenian glaciation in the Carbonates Hecla Hoek Series, with the purpose of informing debates on the subdivision of the Neoproterozoic time scale, Carbon isotopes the cause of the descent into the first snowball ice age, and the tempo of Neoproterozoic oxygenation. This Strontium isotopes interval is represented by the Kinnvika Member of the uppermost Akademikerbreen Group and the Russøya Redox proxies Laurentia Member of the Elbobreen Formation, lowermost Polarisbreen Group. These units record the demise of the long- lived, stable Akademikerbreen carbonate platform in the East Svalbard basin. The upper Russøya Member preserves a deep negative carbon isotope anomaly that has been linked mechanistically to the onset of Cryogenian cooling.
    [Show full text]
  • Glacial History and Geomorphology of Trygghamna, Western Svalbard
    Faculty of Science and Technology Glacial history and Geomorphology of Trygghamna, western Svalbard — Nína Aradóttir Master thesis in Quaternary Geology (GEO-3900) May 2017 Abstract This study investigates Trygghamna, a small fjord on the western coast of Spitsbergen, Svalbard. In order to investigate its glacial history, high-resolution aerial images and swath bathymetry are used to produce a detailed geomorphological map of the area, with a focus on the Neoglacial extent of the three largest glaciers in the fjord, Protektor-, Harriet- and Kjerulfbreen. The landforms are classified into; subglacial, supraglacial, ice-marginal, glaciofluvial, proglacial landforms and extra-marginal surface cover. The ice-margins were reconstructed from ~1900, based on historical and geomorphological data together with aerial and satellite images. The Neoglacial maximum extent of the glaciers was reached around 1900, or the culmination of the Little Ice Age in Svalbard. Harriet- and Kjerulfbreen are considered to have exhibited surge behavior based on the presence of crevasse squeeze ridges (CSRs), which are considered unique for surging glaciers. The maximum extent is therefore, to some degree, related to a surge-event. Ice-marginal reconstructions and historical data suggest that the glaciers have been in overall retreat since then. It is more complex to determine if Protektorbreen surged as different factors in the glacier’s environment affect the formation and preservation potential of the landforms. The landform assemblages in the forefields do not show a good correspondence to previously published landsystem models for surge-type glaciers. Landsystem models should therefore be used with precaution when identifying undocumented surge-type glaciers. This investigation highlights the contrast in the record between terrestrial and marine environments of the glacier forefields in Trygghamna.
    [Show full text]
  • Late Quaternary Glacier and Sea‐Ice History of Northern Wijdefjorden
    bs_bs_banner Late Quaternary glacier and sea-ice history of northern Wijdefjorden, Svalbard LIS ALLAART , JULIANE MULLER,€ ANDERS SCHOMACKER, TOM A. RYDNINGEN, LENA HAKANSSON, SOFIA E. KJELLMAN , GESINE MOLLENHAUER AND MATTHIAS FORWICK Allaart,L., Muller,J.,Schomacker,A.,Rydningen,T.A.,H€ akansson, L.,Kjellman,S.E., Mollenhauer,G.&Forwick, M.: Late Quaternary glacier and sea-ice history of northern Wijdefjorden, Svalbard. Boreas. https://doi.org/10.1111/ bor.12435. ISSN 0300-9483. The deglaciation history and Holocene environmental evolution of northern Wijdefjorden, Svalbard, are reconstructed using sediment cores and acoustic data (multibeam swath bathymetry and sub-bottom profiler data). Results reveal that the fjord mouth was deglaciated prior to 14.5Æ0.3 cal. ka BP and deglaciation occurred in a stepwise manner. Biomarker analyses show rapid variations in water temperature and sea ice cover during the deglaciation, and cold conditions during the YoungerDryas, followed by minimum sea ice coverthroughout the Early Holocene, until c. 7 cal. ka BP.Most of the glaciers in Wijdefjorden had retreated onto land by c. 7.6Æ0.2 cal. ka BP. Subsequently, the sea-ice extent increased and remained high throughout the last part of the Holocene. We interpret a high Late Holocene sediment accumulation rate in the northernmost core to reflect increased sediment flux to the site from the outlet of the adjacent lake Femmilsjøen, related to glacier growth in the Femmilsjøen catchment area. Furthermore, increased sea ice cover, lower water temperatures and the re-occurrence of ice-rafted debris indicate increased local glacier activityand overall coolerconditions in Wijdefjorden afterc. 0.5 cal. ka BP.Wesummarize our findings in a conceptual model for the depositional environment in northern Wijdefjorden from the Late Weichselian until present.
    [Show full text]
  • CH1-08: a Review of Major Faults in Svalbard
    A review of major faults in Svalbard by W. B. Harland Department of Geology Downing Street Cambridge CB2 3EQ, UK ABSTRACT Eleven major fault zones, either observed or sometimes postulated, are selected for discussion. Some show a long history, possibly dating back to Precambrian time, certainly to mid-Palaeozoic time, with evidence of late Devonian sinistral transcurrence. The best observed parts of these and most other faults are seen where later Phanerozoic rocks are displaced and in Tournaisian through Palaeocene time there is no evidence of strike-slip. However, with the general evidence of dextral strike-slip throughout Cenozoic time in the Spitsbergen Transform there is a short period of Palaeogene transpression (the West Spitsbergen Orogeny) and at that time probably many faults to the east of the orogenic front were initiated or reactivated. Graben faulting followed in the line of that orogeny, and seismic and thermal activity today completes our knowledge of a long mobile sequence. CONTENTS 1. Introduction 1.1 Historical note 1.2 Tectonic sequence 1.3 Identification of lineaments Figure 1 - Map of major faults in Svalbard Table 1 - Sequence of major faulting in Svalbard 2. Discussion of major lineaments 2.1 Lady Franklinfjorden Fault 2.2 Hinlopenstretet Fault Zone 2.3 Lomfjorden Fault Zone 2.4 Billefjorden Fault Zone 2.5 Bockfjorden Fault Zone 2.6 Raudfjorden Fault Zone 2.7 West Spitsbergen Orogenic Front and the Central Western Fault Zone 2.8 Forlandsundet Graben 2.9 Sutorfjella Fault 2.10 Fault zones offshore to the west of Spitsbergen 2.11 Heerland Seismic Zone 3.
    [Show full text]
  • B a R E N T S L E S S O
    cyan cyan cyan cyan yellow yellow yellow yellow CMYK CMYK CMYK CMYK magenta magenta barents calling barents megaPort VARDØ FISKERIFAGSKOLE OG HAVN honningsvåg–vardø VARDØ hurtigruten inn technoPole magenta barents house KirKenes rZd the threshold temPorary living in a shiPyard HUNDEKLUBB arctic Prison arctic garden magenta PP 112–117 PP 118–121 PP 122–125 PP 130–133 PP 134–137 PP 138–141 PP 142–145 PP 146–149 PP 150–153 = PP= 100–103= PP 104–107 PP 108–111 = = = PP 126–129 = = = = = = HOLD KEEP SEE RELATED PUBLICATIONS: NOTICES TO MARINERS (recent, imminent and temporary changes). SAILING DIRECTIONS (local HOLD KEEP SEE RELATED PUBLICATIONS: NOTICES TO MARINERS (recent, imminent and temporary changes). SAILING DIRECTIONS (local WGS 84 POSITIONS conditions, directions, regulations and port information). LIST OF LIGHTS, LIST OF RADIO SIGNALS (navigational warnings and weather conditions, directions, regulations and port information). LIST OF LIGHTS, LIST OF RADIO SIGNALS (navigational warnings and weather SKJÆRGÅRDEN REN YOUR WATERWAYS CLEAN transmissions, pilot and port operations services, traffic management, radio beacons), TIDE TABLES, TIDAL STREAM ATLASES, SKJÆRGÅRDEN REN YOUR WATERWAYS CLEAN WGS 84 POSITIONS transmissions, pilot and port operations services, traffic management, radio beacons), TIDE TABLES, TIDAL STREAM ATLASES, can be plotted directly on this chart MARINERS HANDBOOK (general information), INT1 - symbols, terms and abbreviations. MARINERS HANDBOOK (general information), INT1 - symbols, terms and abbreviations. ARE
    [Show full text]