Icelandiceland Fieldfield Guideguide

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Icelandiceland Fieldfield Guideguide IcelandIceland fieldfield guideguide DEES Graduate Student Field Trip August 2010 © Department of Earth and Environmental Sciences, Columbia University 2010 Prepared by Natalia Zakharova Edited by Jason Jweda and Margaret Reitz Front page photo: Fjallsjökull glacial tongue, Vatnajökull ice cap (credit N. Zakahrova) 2 Table of Contents: PREFACE .............................................................................................................................................................4 TRIP ITINERARY ..............................................................................................................................................5 INTRODUCTION................................................................................................................................................7 GENERAL INFORMATION ABOUT ICELAND........................................................................................................7 HISTORICAL AND CULTURAL BACKGROUND.....................................................................................................8 GEOLOGIC OVERVIEWS .............................................................................................................................10 RIDGE-HOTSPOT INTERACTION – THE ORIGIN OF ICELAND..........................................................................10 SEISMICITY .......................................................................................................................................................13 PETROLOGY AND GEOCHEMISTRY ..................................................................................................................15 VOLCANISM......................................................................................................................................................19 GEOTHERMAL POWER GENERATION...............................................................................................................25 CO2 SEQUESTRATION ......................................................................................................................................26 GLACIOLOGY....................................................................................................................................................28 GLACIERS AND JÖKULHLAUPS ........................................................................................................................31 POST-GLACIAL REBOUND ................................................................................................................................33 CLIMATE AND CLIMATE CHANGE ...................................................................................................................35 ICELAND ECOLOGY..........................................................................................................................................37 DETAILED ITINERARY AND DESCRIPTIONS OF VISITED SITES ................................................40 DAY 0 (WEDNESDAY, AUGUST 18TH)..............................................................................................................40 DAY 1 (THURSDAY, AUGUST 19TH) - REYKJANES PENINSULA ......................................................................40 DAY 2 (FRIDAY, AUGUST 20TH) - HELLISHEIÐI POWER PLANT AND ÞINGVELLIR ........................................43 DAY 3 (SATURDAY, AUGUST 21TH) – GEYSIR AND GULLFOSS......................................................................49 DAY 4 (SUNDAY, AUGUST 22ND) – HIKE TO EYJAFJALLAJÖKULL.................................................................53 DAY 5 (MONDAY, AUGUST 23RD) – GLACIAL HIKE IN SKAFTAFELL .............................................................56 DAY 6 (TUESDAY, AUGUST 24ND) – SKAFTAFELL GLACIER TOUR WITH HELGI BJÖRNSSON ..................................60 DAY 7 (WEDNESDAY, AUGUST 25TH) – EASTERN ICELAND ..........................................................................63 DAY 8 (THURSDAY, AUGUST 26TH) - LAKE MÝVATN ....................................................................................67 DAY 9 (FRIDAY, AUGUST 27TH) - DRIVE TO REYKJAVÍK VIA KJÖLUR (500 KM) .........................................72 DAY 10 (SATURDAY, AUGUST 28TH) - REYKJAVÍK...........................................................................................75 ACKNOWLEDGMENTS.................................................................................................................................77 TRIP PARTICIPANTS.....................................................................................................................................78 TRIP COSTS ......................................................................................................................................................80 CAMP SITES INFORMATION......................................................................................................................81 MENUS AND FOOD BUDGET ......................................................................................................................82 DAILY MENU FOR 20 PEOPLE ..........................................................................................................................82 BUDGET ............................................................................................................................................................83 COOKING EQUIPMENT......................................................................................................................................83 SUGGESTED PACKING LIST ......................................................................................................................84 AFTERWORD....................................................................................................................................................86 3 Preface Iceland is a unique place to study a great variety of geologic and climate-driven processes, and to observe how interactions between these processes create unusual and diverse environments. High rates of volcanic activity, crustal deformation, rapid erosion, interplay of glacial and volcanic forces, and dramatic climate effects make Iceland an attractive destination for a wide range of Earth scientists. This guide is based on the Columbia University graduate student field trip to Iceland in August 2010 (Fig. 1). It was made possible by the Storke Memorial Fund, designated to support educational activities at Lamont-Doherty Earth Observatory, Columbia University. The participants on this trip consisted of Ph.D. students in the Earth and Environmental Sciences and Master students from the Climate and Society Program. This group of students represented a full spectrum of sub-disciplines, which allowed us to cover a wide variety of scientific topics including geophysics, tectonics, seismicity, volcanism, petrology, geothermal power generation and carbon sequestration, glaciology, climate and ecology as well as how these have shaped Icelandic culture and history. A student-led seminar series based on extensive literature reviews was a critical component of the preparation for this field trip. Each of the participants presented a topic of interest to the rest of the group. The seminar laid a good foundation for our field studies and helped to foster the discussion of various features and phenomena we observed in the field. The seminar also provided a basis for general overviews included in this guide. This guide summarizes the amazing field experience and the information we learned before, during, and after the trip. In addition to the broad overviews of Icelandic geology, ecology, etc., the guide also contains detailed day itineraries, trip expenses, and dinner menus. We hope that this will be useful in planning future trips to wonderful and beautiful country of Iceland. 4 Trip Itinerary DAY 1 - August 19th, 2010: - Arriving to Keflavík early in the morning - Exploring Reykjanestá - Visiting Blue Lagoon - Camping in Reykjavík DAY 2 - August 20th, 2010: - Exploring Hellisheiði power plant and CO2 sequestration site - Hiking Raufarhólshellir lava tube - Exploring Þingvellir National Park and camping there DAY 3 - August 21st, 2010: - Visiting Geysir and Gulfoss - Driving to Eyjafjallajokull and camping in Thosmork DAY 4 - August 22nd, 2010: - Long hike to Eyjafjallajökull - Driving to Skaftafell and camping DAY 5 - August 23rd, 2010: - Glacial hike on Öræfajökull - Short hike to Svartifoss - Camping in Skaftafell DAY 6 - August 24th, 2010: - Visit Jökulsarlón glacial lagoon - Explore glacial features of Skaftafell - Camping in Skaftafell DAY 7 - August 25th, 2010: - Driving through eastern Iceland (fjords) - Stop at Petra mineral museum - Arriving to Mývatn and camping there DAY 8 - August 26th, 2010: - Exploring Krafla caldera and Leirhujukur geothermal vents - Hiking in Dimmuborgir lava lake - Hiking up the Hverfjall tephra cone - Bathing in Mývatn Nature Baths - Camping by Mývatn DAY 9 - August 27th, 2010: 5 - Transfer to Reykjavík - driving through central Iceland - Stop in Akureyri - Stop at Goðafoss - Stop at Kjölur hot springs - Camping in Reykjavík DAY 10 - August 28th, 2010: - Exploring Reykjavík - Flying home in the afternoon Figure 1. Schematic route of the trip and major sites visited. 6 Introduction General information about Iceland Contributed by Nevin Singh Iceland is located in the Northern Atlantic Ocean, on the edge of the Arctic Circle, between latitudes 63⁰24’N and 66⁰33’N and between longitudes 13⁰30’W and 24⁰32’W.
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