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Iceland Can Be Considered Volcanologist “Heaven”
Iceland can be considered volcanologist “heaven” 1) Sub-aerial continuation of the Mid-Atlantic Ridge 2) Intersection of a mantle plume with a spreading ocean ridge 3) Volcanism associated with tectonic rifting 4) Sub-glacial volcanism 5) Tertiary flood (plateau) basalts 6) Bi-modal volcanism 7) Submarine volcanism 8) 18 historically active volcanoes 9) Eruptions roughly every 5 years 1. The North Atlantic opened about 54 Ma separating Greenland from Europe. 2. Spreading was initially along the now extinct Agir ridge (AER). 3. The Icelandic plume was under Greenland at that time. 4. The Greenland – Faeroe ridge represents the plume track during the history of the NE Atlantic. Kolbeinsey ridge (KR) 5. During the last 20 Ma the Reykjanes Ridge (RR) Icelandic rift zones have migrated eastward, stepwise, maintaining their position near the plume 6. The plume center is thought to be beneath Vatnajökull 1 North Rift Zone – currently active East Rift Zone – currently active West Rift Zone – last erupted about 1000-1300 AD [Also eastern (Oræfajökull) and western (Snæfellsnese) flank zones] Rift zones comprise en-echelon basaltic fissure swarms 5-15 km wide and up to 200 km long. Over time these fissures swarms develop a volcanic center, eventually maturing into a central volcano with a caldera and silicic Tertiary volcanics > 3.1 Ma volcanism Late Tertiary to Early Quaternary 3.1 – 0.7 Ma Neo-volcanic zone <0.7 - present Schematic representation of Iceland’s mantle plume. The crust is about 35 – 40 km thick Iceland’s mantle plume has been tomographically imaged down to 400 km. Some claim even deeper, through the transition zone, and down to the core – mantle boundary. -
Baula Esjan Hekla Katla Askja
GEFÐU STARFSFÓLKINU DAGAMUN Þótt árshátíðir og ýmis annar gleðskapur hafi fallið niður hjá fyrirtækjum og stofnunum er auðvelt að gefa starfsfólkinu glaðning og gera því glaðan dag. Við útbúum óskaskrín sérmerkt þínu fyrirtæki og með kveðju til starfsfólksins. Hafðu samband í síma 577 5600 eða [email protected]. Suðurlandsbraut 30 | 577 5600 | [email protected] | oskaskrin.is Askja VERÐ 5.900 KR. Handhafi Óskaskrínsins velur eina af eftirfarandi upplifunum DEKUR VEITINGAHÚS AFÞREYING SNYRTISTOFAN VERÐI ÞINN VILJI FJÖLSKYLDU- OG HÚSDÝRAGARÐURINN HEILSA OG ÚTLIT WHALES OF ICELAND HREYFING PODCASTSTÖÐIN BEAUTY LOUNGE BY SHE SÓLIR JÓGASTÚDÍÓ SNYRTISTOFA ÁGÚSTU - Vestmannaeyjar SKAUTAHÖLL AKUREYRAR HIÐ NÝJA LÍF - Akureyri BIKE CAVE BREWDOG REYKJAVÍK GRILLHÚSIÐ HAMBORGARAFABRIKKAN KEF RESTAURANT - Keflavík KRISP - Selfoss HVER RESTAURANT - Hveragerði HAMBORGARAFABRIKKAN - Akureyri Baula VERÐ 8.900 KR. Handhafi Óskaskrínsins velur eina af eftirfarandi upplifunum DEKUR VEITINGAHÚS ÚTIVIST OG AFÞREYING VON MATHÚS SÓLIR JÓGA HEIM Í STOFU KRYDD DIVE.IS NAUTHÓLL HELLA HORSE RENTAL - Hella THE COOCOO’S NEST LANGHÚS HORSE TOURS - Fljótum HREYFING BREWDOG 1238 BARÁTTAN UM ÍSLAND - Sauðárkróki HELENA FAGRA HVER - Hveragerði ICEBERG BOAT TOURS - Öræfi SNYRTISTOFAN DIMMALIMM KRISP - Selfoss SNYRTISTOFAN FEGURÐ STRIKIÐ - Akureyri GISTING FYRIR TVO TRIMFORM GEISLINN STRANDAGALDUR - Hólmavík GRÍMUR HÓTEL - Höfuðborgarsvæðið HEILSA OG ÚTLIT HÓTEL BLANDA - Blönduós BEAUTY LOUNGE BY SHE SNYRTIMIÐSTÖÐIN VERÐI ÞINN VILJI - SNYRTISTOFA SNYRTISTOFA ÁGÚSTU - VESTMANNAEYJAR -
Oaklands School Geography Department - Iceland Trip 2019
Oaklands School Geography Department - Iceland Trip 2019 Skogafoss Waterfall Name: __________________________________ Tutor Group: _____________________________ 1 Part A: Where is Iceland? Iceland is an island formerly belonging to Denmark. It has been a Republic since 1944 and is found in the middle of the North Atlantic Ocean. We will fly to Keflavik and stay near Hvolsvollur in the SW of the island. The map above is an enlargement of the box drawn on the map of Iceland below left. Map area on next Clearly, we are only visiting a small section of page the island, but in this small area you will be blown away by what you will see. Perhaps your visit to the island will prompt you to come back to explore further in the future? 2 Part B: History of Iceland Iceland is only about 20 million years old! It was formed by a series of volcanic eruptions at the Mid- Atlantic ridge. In fact the plume of magma called the Iceland ‘Hot Spot’ is responsible for its continued existence and almost continuous volcanic activity. Exact dates for first human occupancy is uncertain, but the accepted date is 874 for the first permanent settlers from Scandinavia. They settled near Reykjavik (which means ‘smokey cove’ – due to the Geothermal heat). Settlers continued to come from Norway, Scotland and Ireland. The first parliament was held at Thingvellir (pictured right), where chieftains met and agreed laws and rules for the country. The country converted to Christianity in the 11th Century, but pagan worship was tolerated if it was in secret. Civil war followed and the end result was that Iceland accepted Norwegian sovereignty and were ruled by the Norwegian kings. -
Naming the Extrasolar Planets
Naming the extrasolar planets W. Lyra Max Planck Institute for Astronomy, K¨onigstuhl 17, 69177, Heidelberg, Germany [email protected] Abstract and OGLE-TR-182 b, which does not help educators convey the message that these planets are quite similar to Jupiter. Extrasolar planets are not named and are referred to only In stark contrast, the sentence“planet Apollo is a gas giant by their assigned scientific designation. The reason given like Jupiter” is heavily - yet invisibly - coated with Coper- by the IAU to not name the planets is that it is consid- nicanism. ered impractical as planets are expected to be common. I One reason given by the IAU for not considering naming advance some reasons as to why this logic is flawed, and sug- the extrasolar planets is that it is a task deemed impractical. gest names for the 403 extrasolar planet candidates known One source is quoted as having said “if planets are found to as of Oct 2009. The names follow a scheme of association occur very frequently in the Universe, a system of individual with the constellation that the host star pertains to, and names for planets might well rapidly be found equally im- therefore are mostly drawn from Roman-Greek mythology. practicable as it is for stars, as planet discoveries progress.” Other mythologies may also be used given that a suitable 1. This leads to a second argument. It is indeed impractical association is established. to name all stars. But some stars are named nonetheless. In fact, all other classes of astronomical bodies are named. -
Vlearning Our Solar System
VLearning A VLearning Special Intellectual output Our Solar System The Moon Lesson Plan Thanks to Anica Trickovic NOT FOR SALE Constellation A Guide to Guide Small Bodies This website was produced by funding from the European Commission's Horizon 2020 Programme under grant agreement nº 638653 IThanks to E Twinning Scientix and Space Awareness/ LEARNING OUTCOMES Connection The Solar System, consists of the Sun as its central star, eight planets and During this activity, students play a game and learn the properties of different their moons plus dwarf planets. planets and their relative position in the Solar System. There are countless small bodies. (further information about these can be from the Visnjan Observatory, contact “Podrute” ). Small bodies can be anything from LEARNING OBJECTIVES something the size of a pebbles to the size of a dwarf planet like Pluto) and comets. • Students will be able to describe what the Solar System is. Planets, small bodies, asteroids, dwarf planets and comets all orbit the sun • Students will be able to describe the properties of different planets and The Earth is a very special planet because it is our home! The Earth is located classify them into rocky and gassy. about 150 million kilometres from the Sun, giving a temperature that is exactly right for liquid water to be present on the surface, This is called being located • Students will be able to name the planets and place them in order. in the “Goldilocks zone” and earth is the only planet which can have liquid water present on the surface. This proved crucial for the development of life! The Solar System is part of the Milky Way. -
Title of Thesis: ABSTRACT CLASSIFYING BIAS
ABSTRACT Title of Thesis: CLASSIFYING BIAS IN LARGE MULTILINGUAL CORPORA VIA CROWDSOURCING AND TOPIC MODELING Team BIASES: Brianna Caljean, Katherine Calvert, Ashley Chang, Elliot Frank, Rosana Garay Jáuregui, Geoffrey Palo, Ryan Rinker, Gareth Weakly, Nicolette Wolfrey, William Zhang Thesis Directed By: Dr. David Zajic, Ph.D. Our project extends previous algorithmic approaches to finding bias in large text corpora. We used multilingual topic modeling to examine language-specific bias in the English, Spanish, and Russian versions of Wikipedia. In particular, we placed Spanish articles discussing the Cold War on a Russian-English viewpoint spectrum based on similarity in topic distribution. We then crowdsourced human annotations of Spanish Wikipedia articles for comparison to the topic model. Our hypothesis was that human annotators and topic modeling algorithms would provide correlated results for bias. However, that was not the case. Our annotators indicated that humans were more perceptive of sentiment in article text than topic distribution, which suggests that our classifier provides a different perspective on a text’s bias. CLASSIFYING BIAS IN LARGE MULTILINGUAL CORPORA VIA CROWDSOURCING AND TOPIC MODELING by Team BIASES: Brianna Caljean, Katherine Calvert, Ashley Chang, Elliot Frank, Rosana Garay Jáuregui, Geoffrey Palo, Ryan Rinker, Gareth Weakly, Nicolette Wolfrey, William Zhang Thesis submitted in partial fulfillment of the requirements of the Gemstone Honors Program, University of Maryland, 2018 Advisory Committee: Dr. David Zajic, Chair Dr. Brian Butler Dr. Marine Carpuat Dr. Melanie Kill Dr. Philip Resnik Mr. Ed Summers © Copyright by Team BIASES: Brianna Caljean, Katherine Calvert, Ashley Chang, Elliot Frank, Rosana Garay Jáuregui, Geoffrey Palo, Ryan Rinker, Gareth Weakly, Nicolette Wolfrey, William Zhang 2018 Acknowledgements We would like to express our sincerest gratitude to our mentor, Dr. -
Signature of Deep Mantle Melting in South Iceland Olivine
Contributions to Mineralogy and Petrology (2019) 174:43 https://doi.org/10.1007/s00410-019-1580-8 ORIGINAL PAPER Signature of deep mantle melting in South Iceland olivine Paavo Nikkola1,2 · Guðmundur H. Guðfnnsson2 · Enikő Bali2,3 · O. Tapani Rämö1 · Tobias Fusswinkel4 · Thorvaldur Thordarson2,3 Received: 1 December 2018 / Accepted: 26 April 2019 / Published online: 13 May 2019 © The Author(s) 2019 Abstract We present new high-precision major and trace element data on olivine macrocrysts from various volcano-tectonic settings in Iceland and use these data as a proxy for mantle mode and melting conditions. Within individual sampling sites examined (seven lavas and one tephra) olivine-dominated fractional crystallization, magma mixing and difusive re-equilibration control observed variability in olivine composition. High-pressure fractional crystallization of clinopyroxene may have lowered Ca and increased Fe/Mn in one olivine population and subsolidus difusion of Ni and Fe–Mg afected the mantle-derived Ni/Fo ratio in some compositionally zoned olivine macrocrysts. Interestingly, magmas erupted at the southern tip of the Eastern Volcanic Zone (SEVZ), South Iceland, have olivines with elevated Ni and low Mn and Ca contents compared to olivines from elsewhere in Iceland, and some of the SEVZ olivines have relatively low Sc and V and high Cr, Ti, Zn, Cu and Li in comparison to depleted Iceland rift tholeiite. In these olivines, the high Ni and low Mn indicate relatively deep melting (Pfnal > 1.4 GPa, ~ 45 km), Sc, Ti and V are compatible with low-degree melts of lherzolite mantle, and elevated Zn may suggest modal (low-olivine) or geochemical (high Zn) enrichment in the source. -
1 Jeff Ballou
NATIONAL PRESS CLUB LUNCHEON WITH ADMIRAL PAUL ZUKUNFT SUBJECT: ZUKUNFT WILL DISCUSS CHALLENGES FACING THE SERVICE, INCLUDING CYBER SECURITY, EXPANSION OF THE PANAMA CANAL AND MANAGING LIMITED RESOURCES IN A WORLD THAT FACES A GROWING NUMBER OF THREATS. MODERATOR: JEFF BALLOU, VICE-CHAIR OF THE NATIONAL PRESS CLUB BOARD OF GOVERNORS LOCATION: THE NPC BALLROOM, WASHINGTON, D.C. TIME: 12:30 P.M. EDT DATE: MONDAY, JULY 5, 2015 (C) COPYRIGHT 2008, NATIONAL PRESS CLUB, 529 14TH STREET, WASHINGTON, DC - 20045, USA. ALL RIGHTS RESERVED. ANY REPRODUCTION, REDISTRIBUTION OR RETRANSMISSION IS EXPRESSLY PROHIBITED. UNAUTHORIZED REPRODUCTION, REDISTRIBUTION OR RETRANSMISSION CONSTITUTES A MISAPPROPRIATION UNDER APPLICABLE UNFAIR COMPETITION LAW, AND THE NATIONAL PRESS CLUB RESERVES THE RIGHT TO PURSUE ALL REMEDIES AVAILABLE TO IT IN RESPECT TO SUCH MISAPPROPRIATION. FOR INFORMATION ON BECOMING A MEMBER OF THE NATIONAL PRESS CLUB, PLEASE CALL 202-662-7505. JEFF BALLOU: (Sounds gavel.) Welcome to the National Press Club. My name is Jeff Ballou I am news editor for Al Jazeera Media Networks English Language Channel, and I'm Vice-Chair of the National Press Club’s Board of Governors. Our guest today is U.S. Coast Guard Admiral and Commandant Paul Zukunft. First, I’d like to introduce our head table guests. I’d ask each of you to stand briefly as your name is announced. From the audience’s right, Natalie DeBlasio, Run Haven, and a member of the National Press Club Speakers Committee. Max Lederer, publisher, Stars and Stripes. Lieutenant Commander Natalia Best, United States Coast Guard. Jen Judson, Defense Reporter at Politico and Co-Chair of the National Press Club Young Members Committee. -
Impact Melt Emplacement on Mercury
Western University Scholarship@Western Electronic Thesis and Dissertation Repository 7-24-2018 2:00 PM Impact Melt Emplacement on Mercury Jeffrey Daniels The University of Western Ontario Supervisor Neish, Catherine D. The University of Western Ontario Graduate Program in Geology A thesis submitted in partial fulfillment of the equirr ements for the degree in Master of Science © Jeffrey Daniels 2018 Follow this and additional works at: https://ir.lib.uwo.ca/etd Part of the Geology Commons, Physical Processes Commons, and the The Sun and the Solar System Commons Recommended Citation Daniels, Jeffrey, "Impact Melt Emplacement on Mercury" (2018). Electronic Thesis and Dissertation Repository. 5657. https://ir.lib.uwo.ca/etd/5657 This Dissertation/Thesis is brought to you for free and open access by Scholarship@Western. It has been accepted for inclusion in Electronic Thesis and Dissertation Repository by an authorized administrator of Scholarship@Western. For more information, please contact [email protected]. Abstract Impact cratering is an abrupt, spectacular process that occurs on any world with a solid surface. On Earth, these craters are easily eroded or destroyed through endogenic processes. The Moon and Mercury, however, lack a significant atmosphere, meaning craters on these worlds remain intact longer, geologically. In this thesis, remote-sensing techniques were used to investigate impact melt emplacement about Mercury’s fresh, complex craters. For complex lunar craters, impact melt is preferentially ejected from the lowest rim elevation, implying topographic control. On Venus, impact melt is preferentially ejected downrange from the impact site, implying impactor-direction control. Mercury, despite its heavily-cratered surface, trends more like Venus than like the Moon. -
COURSE NOTES V0
Sheep in the Land of Fire and Ice Sauðfé í landi elds og ísa COURSE NOTES v0 Sheep in the land of Fire and Ice COURSE NOTES v0 Contents PART 1. COURSE INTRODUCTION SECTION 1.1 SHEEP IN THE LAND OF FIRE AND ICE About this course Meet the experts Navigating the course PART 2. SHEEP GRAZING IN THE NORTH SECTION 2.1 SHEEP GRAZING IN THE NORTH Grazing in Nordic regions Studying herbivory in the North – the need for coordinated research efforts SECTION 2.2 SHEEP GRAZING IN ICELAND Environmental conditions in Iceland How do these conditions influence the impacts of grazing? SECTION 2.3 SHEEP GRAZING CAN LEAD TO SOIL EROSION PART 3. HISTORICAL PERSPECTIVE OF SHEEP GRAZING IN ICELAND SECTION 3.1 ICELAND BEFORE SHEEP What Iceland could have looked like before human settlement SECTION 3.2 MODELLING THE ECOSYSTEM State and transition models SECTION 3.3 THEN, SHEEP ARRIVED Sheep over time: from landnám to our days SECTION 3.4 EFFORTS TO MITIGATE ENVIRONMENTAL DEGRADATION PART 4. THE PRESENT AND THE FUTURE OF SHEEP GRAZING IN ICELAND SECTION 4.1 SHEEP IN ICELAND TODAY Current grazing systems in Iceland SECTION 4.2 CURRENT EFFORTS IN ECOLOGICAL RESEARCH Grazing research SECTION 4.3 SUSTAINABLE SHEEP GRAZING? The future of sheep grazing PART 5. SUMMARY AND CONCLUSIONS SECTION 5.1 SUMMARY AND CONCLUSIONS USEFUL LINKS REFERENCES 2 Sheep in the land of Fire and Ice COURSE NOTES v0 Part 1. Course introduction Section 1.1 Sheep in the Land of Fire and Ice About this course Sheep in the Land of Fire and Ice is a short Massive Open Online Course (MOOC) about sheep grazing in Iceland. -
Icelandic Coast Guard Icelandicicelandicicelandic Coastcoastcoast Guardguardguard
Icelandic Coast Guard IcelandicIcelandicIcelandic CoastCoastCoast GuardGuardGuard CDRCDR GylfiGylfi GeirssonGeirsson Icelandic Coast Guard TheTheThe IcelandicIcelandicIcelandic IntegratedIntegratedIntegrated SystemSystemSystem •• OneOne JointJoint OperationOperation CentreCentre forfor –– CoastCoast GuardGuard OperationOperation •• MonitoringMonitoring ControlControl andand SurveillanceSurveillance (MCS)(MCS) –– GeneralGeneral PolicingPolicing inin thethe IcelandicIcelandic EEZEEZ –– VesselVessel MonitoringMonitoring SystemSystem (VMS)(VMS) –– FisheriesFisheries MonitoringMonitoring CentreCentre (FMC)(FMC) –– MaritimeMaritime TrafficTraffic ServiceService (MTS)(MTS) •• GlobalGlobal MaritimeMaritime DistressDistress andand SafetySafety SystemSystem •• SingleSingle PointPoint ofof ContactContact forfor allall MaritimeMaritime relatedrelated nonotificationstifications –– SchengenSchengen –– PortPort CallCall –– TransitTransit –– SearchSearch andand RescueRescue (SAR)(SAR) –– EmergencyEmergency responseresponse MCS – VMS – FMC – MTS – SAR All integrated into one single centre Icelandic Coast Guard TheTheThe AreaAreaArea ofofof OperationOperationOperation Icelandic Coast Guard TheThe IcelandicIcelandic EEZ.EEZ. AnAn areaarea ofof 754.000754.000 kmkm 22 TheThe NEAFCNEAFC RegulatoryRegulatory AreaArea onon thethe ReykjanesReykjanes ridgeridge CDR G. Geirsson Icelandic Coast Guard TheThe NEAFCNEAFC RegulatoryRegulatory AreaArea EastEast ofof IcelandIceland Icelandic Coast Guard TheThe Icelandic Icelandic SAR SAR area. area. 1,8 1,8 million million -
The Sound of Ruins: Sigur Rós' Heima and the Post
CURRENT ISSUE ARCHIVE ABOUT EDITORIAL BOARD ADVISORY BOARD CALL FOR PAPERS SUBMISSION GUIDELINES CONTACT Share This Article The Sound of Ruins: Sigur Rós’ Heima and the Post-Rock Elegy for Place ABOUT INTERFERENCE View As PDF By Lawson Fletcher Interference is a biannual online journal in association w ith the Graduate School of Creative Arts and Media (Gradcam). It is an open access forum on the role of sound in Abstract cultural practices, providing a trans- disciplinary platform for the presentation of research and practice in areas such as Amongst the ways in which it maps out the geographical imagination of place, music plays a unique acoustic ecology, sensory anthropology, role in the formation and reformation of spatial memories, connecting to and reviving alternative sonic arts, musicology, technology studies times and places latent within a particular environment. Post-rock epitomises this: understood as a and philosophy. The journal seeks to balance kind of negative space, the genre acts as an elegy for and symbolic reconstruction of the spatial its content betw een scholarly w riting, erasures of late capitalism. After outlining how post-rock’s accommodation of urban atmosphere accounts of creative practice, and an active into its sonic textures enables an ‘auditory drift’ that orients listeners to the city’s fragments, the engagement w ith current research topics in article’s first case study considers how formative Canadian post-rock acts develop this concrete audio culture. [ More ] practice into the musical staging of urban ruin. Turning to Sigur Rós, the article challenges the assumption that this Icelandic quartet’s music simply evokes the untouched natural beauty of their CALL FOR PAPERS homeland, through a critical reading of the 2007 tour documentary Heima.