DOCSLIB.ORG

The Iceland Palaeomagnetism Database (ICEPMAG V1.0)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
The Iceland Palaeomagnetism Database (ICEPMAG V1.0) The Iceland Palaeomagnetism Database (ICEPMAG v1.0) Justin A. D. Tonti-Filippini FacultyFaculty of of Earth Earth Sciences Sciences UniversityUniversity of of Iceland Iceland 20182018 THE ICELAND PALAEOMAGNETISM DATABASE (ICEPMAG V1.0) Justin A. D. Tonti-Filippini 60 ECTS thesis submitted in partial fulfilment of a Magister Scientiarum degree in Geophysics Supervisor Maxwell Christopher Brown Faculty Coordinator Páll Einarsson Faculty of Earth Sciences School of Engineering and Natural Sciences University of Iceland Reykjavík, October 2018 The Iceland Palaeomagnetism Database (ICEPMAG v1.0) 60 ECTS thesis submitted in partial fulfilment of a M.Sc. degree in Geophysics Copyright © 2018 Justin A. D. Tonti-Filippini All rights reserved Faculty of Earth Sciences School of Engineering and Natural Sciences University of Iceland Sturlugata 7 101, Reykjavík, Reykjavík Iceland Telephone: 525 4000 Bibliographic information: Justin A. D. Tonti-Filippini, 2018, The Iceland Palaeomagnetism Database (ICEPMAG v1.0), M.Sc. thesis, Faculty of Earth Sciences, University of Iceland. Printing: Háskólaprent, Fálkagata 2, 107 Reykjavík Reykjavík, Iceland, October 2018 For Mary and Nicholas Abstract Iceland’s lavas preserve a unique record of Earth’s magnetic field for the past sixteen million years, and were used by early pioneers of palaeomagnetism to test several concepts which became crucial to modern geoscience. Iceland represents one of very few high latitude (>60◦) locations where long sequences of lavas suitable for palaeo- magnetic research are accessible. Since the early 1950s, research in Iceland has produced a large collection of palaeomagnetic data which has not previously been collected into a comprehensive database. ICEPMAG (http://icepmag.org/) com- piles palaeomagnetic data published in journal articles, academic theses and other databases from over 9,200 sampling sites in Iceland - one of the world’s largest col- lections of palaeomagnetic data from a single location. ICEPMAG was constructed utilising the principles and structure of GEOMAGIA50, and maintains the vocab- ulary of MagIC to allow easy transfer to the global palaeomagnetic database. The ICEPMAG database can be searched through a publicly available website which provides a range of customisable constraints, including rock and sample/specimen types, age constraints, dating methods, palaeointensity methods, geographic con- straints (by region, location and between specified coordinates), authors and years of publication, as well as statistical constraints such as directional polarity, α95 and precision parameter κ. Query results are presented in a results table, with options to produce interactive maps of site locations, VGP plots and downloadable spread- sheets. All the entries in ICEPMAG contain palaeointensity or palaeodirectional data: 8649 contain direction only, 218 intensity only, and 337 both direction and intensity. ICEPMAG will contribute an additional 50 studies and 6,570 sites to the global MagIC database. v Contents List of Figures ix List of Tables xi Abbreviations xiii Acknowledgements xv 1. Introduction1 2. Background5 2.1. Overview of palaeomagnetism . .5 2.1.1. Early history (pre 18th century) . .5 2.1.2. The birth of palaeomagnetism (18th to 20th century) . .6 2.2. Palaeomagnetism in Iceland . .8 2.2.1. Early developments (1920s to 1960s) . .8 2.2.2. Palaeodirectional work (1964 to 2018) . 12 2.2.3. Palaeointensity studies . 16 2.3. Existing palaeomagnetic databases . 17 2.3.1. Magnetic Information Consortium (MagIC) . 18 2.3.2. GEOMAGIA50 Paleomagnetic Database . 18 2.3.3. IAGA Global Paleomagnetic Database (GPMDB) . 18 2.3.4. Absolute Palaeointensity (PINT) Database . 19 2.3.5. PALEOMAGIA (Paleomagnetic Information Archive) . 19 3. Methodology and framework 21 3.1. Construction of the database . 21 3.1.1. Building the source library . 21 3.1.2. Designing the database structure . 23 3.1.3. Adding data to ICEPMAG . 24 3.1.4. Programming the server and website . 26 3.2. Practical experience . 28 4. Data types and experimental methods 29 4.1. Study/contribution details . 29 4.2. Geographic information . 29 vii Contents 4.3. Geological information . 31 4.4. Dating methods . 32 4.5. Sampling information . 33 4.6. Laboratory measurements . 34 4.7. Magnetisation and susceptibility . 35 4.8. Direction calculations . 36 4.9. VGP calculations . 39 4.10. Palaeointensity methods . 40 4.10.1. ‘Thellier’ type methods . 41 4.10.2. ‘Shaw’ methods . 42 4.10.3. Microwave methods . 42 4.10.4. Other methods . 42 4.11. Dipole moments (VDM and VADM) . 43 5. Online implementation and functionality 45 5.1. ICEPMAG website . 45 5.1.1. Home page . 46 5.1.2. Study page . 46 5.1.3. Query form . 46 5.1.4. Results page . 51 5.1.5. Location map . 54 5.1.6. VGP plot . 55 5.1.7. Data download . 56 6. Overview of ICEPMAG data 57 6.1. Geographic distributions . 57 6.2. Temporal distributions . 60 6.3. Palaeointensity results . 61 6.4. Other distributions . 63 7. Conclusion 67 7.1. Summary . 67 7.2. Path forward . 69 7.2.1. MagIC uploads . 69 7.2.2. Updates and error checking . 69 References 71 A. Appendix 83 viii List of Figures 1.1. A well-exposed sequence of lavas in Lundarháls, western Iceland. .2 1.2. Geological map of Iceland - bedrock classified by age, with regions and major towns and roads . .3 3.1. Overview for methodology for the construction of the ICEPMAG database 22 3.2. Workflow for population of master and relational tables from source library 25 3.3. SQL relational table for regions of Iceland with corresponding integer IDs 26 3.4. Workflow from compilation of the ICEPMAG database to output of website . 27 3.5. Example of PHP scripting to generate SQL statement for region/s se- lected on query page . 28 4.1. Regions of Iceland . 31 4.2. Example of palaeomagnetic sampling with a portable drill in Lundarháls, western Iceland, photo taken by J. Tonti-Filippini, 22nd June 2018. 33 4.3. Oriented palaeomagnetic sample drilled from an Icelandic lava, photo taken by J. Tonti-Filippini, 6th July 2018. 35 4.4. Orientation of a palaeomagnetic core in Lundarháls, western Iceland, photo taken by J. Tonti-Filippini, 20th June 2018. 37 5.1. Home page of the ICEPMAG website (screenshot) . 45 5.2. Example of study page containing details of the papers included in ICEP- MAG (searched authors for ‘Brown’) . 46 5.3. Query form - outputs (screenshot) . 47 5.4. Query form - include result options (screenshot) . 47 5.5. Query form - geographic constraints (screenshot) . 48 5.6. Query form - age constraints (screenshot) . 48 5.7. Query form - publication constraints (screenshot) . 49 5.8. Query form - rock, sample and specimen types (screenshot) . 49 5.9. Query form - palaeointensity and dating methods (screenshot) . 50 5.10. Query form - site statistics and polarity (screenshot) . 50 5.11. Results page - an example of query parameters (screenshot) . 51 5.12. Results page - an example of basic search query results (screenshot) . 52 5.13. Results page - an example of additional results columns from a detailed search (screenshot) . 52 5.14. Results page - an example table of references returned by a query (screen- shot) . 52 ix List of Figures 5.15. Results page - an example of the region and location tables returned by a query (screenshot) . 53 5.16. Results page - an example of palaeointensity and dating method tables (screenshot) . 53 5.17. Results page - an example of the additional relational tables returned from a detailed query (screenshot) . 54 5.18. Results page - an example of a location map produced from a query (screenshot) . 55 5.19. Results page - an example of a VGP plot produced from a query (all VGP calculations from the Westfjords region) . 56 5.20. Results page - an example of the link to a downloadable spreadsheet (screenshot) . 56 6.1. Map of ICEPMAG site locations (all results) . 58 6.2. Histogram of all ICEPMAG sites by latitude and longitude . 58 6.3. Histogram of sites by geographic region . 59 6.4. Histogram of sites by reference ID (see Table A.2) . 59 6.5. Histogram - sites by age (all results) . 60 6.6. Histogram - sites by age (Holocene only) . 61 6.7. Histogram - sites by palaeointensity method . 61 6.8. Geographic distribution of all palaeointensity results . 62 6.9. Histogram - all palaeointensity results by latitude and longitude . 63 6.10. Histogram - palaeointensity sites by age (all results) . 63 6.11. Histogram - number of studies by reference year (5 year intervals) . 64 6.12. Histogram - number of sites published by reference year . 64 6.13. Histogram - number of samples collected per site (all results <12) . 65 6.14. Histogram - sites by α95 value . 65 6.15. Histogram - sites by precision parameter κ (<4000) . 66 6.16. Histogram - sites by estimated bedding dip . 66 7.1. Error checking and update process for ICEPMAG . 70 x List of Tables 3.1. Relational table - Region IDs . 24 4.1. Master table - study details . 29 4.2. Master table - geographic information . 30 4.3. Master table - geological descriptions and data . 32 4.4. Master table - dating methods and data . 33 4.5. Master table - sampling information . 34 4.6. Master table - laboratory measurements . 34 4.7. Master table - magnetisation and susceptibility . 36 4.8. Master table - direction calculations . 38 4.9. Master table - VGP calculations . 40 4.10. Master table - palaeointensity . 43 4.11. Master table - dipole moments . 44 A.1. Master data fields/column names and relational tables . 84 A.2. Relational table - Reference IDs . 88 A.3. Relational table - Region IDs . 94 A.4. Relational table - location IDs . ..
Load more

Recommended publications
  • Itinerary Route: Reykjavik, Iceland to Reykjavik, Iceland
    ICELAND AND GREENLAND: WILD COASTS AND ICY SHORES Itinerary route: Reykjavik, Iceland to Reykjavik, Iceland 13 Days Expeditions in: Aug Call us at 1.800.397.3348 or call your Travel Agent. In Australia, call 1300.361.012 • www.expeditions.com DAY 1: Reykjavik, Iceland / Embark padding Special Offers Arrive in Reykjavík, the world’s northernmost capital, which lies only a fraction below the Arctic Circle and receives just four hours of sunlight in FREE BAR TAB AND CREW winter and 22 in summer. Check in to our group TIPS INCLUDED hotel in the morning and take time to rest and We will cover your bar tab and all tips for refresh before lunch. In the afternoon, take a the crew on all National Geographic panoramic drive through the city’s Old Town Resolution, National Geographic before embarking National Explorer, National Geographic Geographic Endurance. (B,L,D) Endurance, and National Geographic Orion voyages. DAY 2: Flatey Island padding Explore Iceland’s western frontier by Zodiac cruise, visiting Flatey Island, a trading post for many centuries. In the afternoon, sail past the wild and scenic coast of Iceland’s Westfjords region. (B,L,D) DAY 3: Arnafjörður and Dynjandi Waterfall padding In the early morning our ship will glide into beautiful Arnafjörður along the northwest coast of Iceland. For a more active experience, disembark early and hike several miles along the base of the fjord to visit spectacular Dynjandi Waterfall. Alternatively, join our expedition staff on the bow of the ship as we venture ever deeper into the fjord and then go ashore by Zodiac to walk up to the base of the waterfall.
    [Show full text]
  • Classification of Icelandic Watersheds and Rivers to Explain Life History Strategies of Atlantic Salmon
    AN ABSTRACT OF THE THESIS OF Siaurdur Gudjonsson for the degree of Doctor of Philosophy in Fisheries Science presented on May 17, 1990. Title: Classification of Icelandic Watersheds and Rivers to Explain Life History Strategies of Atlantic Salmon Abstract approved: 4 Redacted for Privacy Charles E. Warren A hierarchical classification system of Iceland's watersheds and rivers is presented. The classification is based on Iceland's substrate, climate, water, biota, and human cultural influences. The geological formations of Iceland are very different in character depending on their age and formation history. Three major types of formations occur: Tertiary, Plio-Pleistocene, and Pleistocene. These formations have different hydrological characters and different landscapes. There are also large differences in the climate within Iceland. Four major river types are found in Iceland: spring-fed rivers in Pleistocene areas, direct runoff rivers in Plio-Pleistocene areas, direct runoff rivers in Tertiary areas and wetland heath rivers in Tertiary areas. Eleven biogeoclimatic regions occur in Iceland, each having a different watershed type. The classification together with life history theory can explain the distributions, abundances, and life history strategies of Icelandic salmonids. Oceanic conditions must also be considered to explain the life history patterns of anadromous populations. When the freshwater and marine habitat is stable, the life history patterns of individuals in a population tend to be uniform, one life history form being most common. In an unstable environment many life history forms occur and the life span of one generation is long. The properties of the habitat can further explain which life history types are present.
    [Show full text]
  • Mannréttindaskrifstofa Íslands the Icelandic Human Rights Center
    MANNRÉTTINDASKRIFSTOFA ÍSLANDS THE ICELANDIC HUMAN RIGHTS CENTER NOTES ON ICELAND’S COMBINED SEVENTEENTH AND EIGHTEENTH PERIODIC REPORTS ON IMPLEMENTATION OF THE INTERNATIONAL CONVENTION ON THE ELIMINATION OF ALL FORMS OF RACIAL DISCRIMINATION JUNE 2005 The Icelandic Human Rights Center Laugavegi 7, 3 hæð – 101 Reykjavik - Iceland Símar/Phone + 354 552 27 20 – Fax + 354 552 27 21 Netfang/ E-mail [email protected] INTRODUCTION In light of the CERD Committee’s review of Iceland’s Combined Seventeenth and Eighteenth Periodic Reports on the Implementation of the International Convention on the Elimination of All Forms of Racial Discrimination, which will be considered at the 67rt Session in Geneva, on 10 and 11 August 2005, the Icelandic Human Rights Center has undertaken to provide the following insights regarding Iceland’s implementation of the Convention, in co-operation with Icelandic NGOs and human rights experts. Before delving into the issues, certain factors of vital concern to the Icelandic Human Rights Center itself will be introduced. An abstract from the Center’s Report of Activities 2004 may be found in Addendum I. The Imperilled Existence of the Icelandic Human Rights Center In its Fourteenth Periodic Report on the Implementation of the Convention, the Government of Iceland referred to the establishment in 1994 of the Icelandic Human Rights Office (now Human Rights Center). The Report stated: 25. Two organizations have been established in the past two years specifically dealing with human rights. Firstly, the Human Rights Office was established in Reykjavik in the spring of 1994, similar to those which have existed in the Scandinavian countries for some time.
    [Show full text]
  • Og Félagsvísindasvið Háskólinn Á Akureyri 2020
    Policing Rural and Remote Areas of Iceland: Challenges and Realities of Working Outside of the Urban Centres Birta Dögg Svansdóttir Michelsen Félagsvísindadeild Hug- og félagsvísindasvið Háskólinn á Akureyri 2020 < Policing Rural and Remote Areas of Iceland: Challenges and Realities of Working Outside of the Urban Centres Birta Dögg Svansdóttir Michelsen 12 eininga lokaverkefni sem er hluti af Bachelor of Arts-prófi í lögreglu- og löggæslufræði Leiðbeinandi Andrew Paul Hill Félagsvísindadeild Hug- og félagsvísindasvið Háskólinn á Akureyri Akureyri, Maí 2020 Titill: Policing Rural and Remote Areas of Iceland Stuttur titill: Challenges and Realities of Working Outside of the Urban Centres 12 eininga lokaverkefni sem er hluti af Bachelor of Arts-prófi í lögreglu- og löggæslufræði Höfundarréttur © 2020 Birta Dögg Svansdóttir Michelsen Öll réttindi áskilin Félagsvísindadeild Hug- og félagsvísindasvið Háskólinn á Akureyri Sólborg, Norðurslóð 2 600 Akureyri Sími: 460 8000 Skráningarupplýsingar: Birta Dögg Svansdóttir Michelsen, 2020, BA-verkefni, félagsvísindadeild, hug- og félagsvísindasvið, Háskólinn á Akureyri, 39 bls. Abstract With very few exceptions, factual and fictionalized the portrayals of the police and law enforcement are almost always situated in urban settings. Only ‘real’ police work occurs in the cities while policing in rural and remote areas is often depicted as less critical, or in some cases non-existent. In a similar fashion, much of the current academic literature has focused on police work in urban environments. It is only in the past five years that the academic focus has turned its attention to the experiences of police officers who live and work in rural and remote areas. To date, no such studies have yet examined the work of police officers in rural and remote areas of Iceland.
    [Show full text]
  • Expansion of Lophius Piscatorius Distribution in Iceland
    Master‘s Thesis Expansion of Lophius piscatorius Distribution in Iceland: Exploring the Ecological and Economic Viability for Establishing Sustainable Monkfish Fisheries in Northwestern Iceland Rikab Rajudeen Advisor: Bjarni Jónsson University of Akureyri Faculty of Business and Science University Centre of the Westfjords Master of Resource Management: Coastal and Marine Management Ísafjörður, May 2013 Supervisory Committee Advisor: Bjarni Jónsson, MSc. Reader: Scott Heppell, Ph.D. Program Director: Dagný Arnarsdóttir, MSc. Rikab Rajudeen Expansion of Lophius piscatorius Distribution in Iceland: Exploring the Ecological and Economic Viability for Establishing Sustainable Monkfish Fisheries in Northwestern Iceland 45 ECTS thesis submitted in partial fulfillment of a Master of Resource Management degree in Coastal and Marine Management at the University Centre of the Westfjords, Suðurgata 12, 400 Ísafjörður, Iceland Degree accredited by the University of Akureyri, Faculty of Business and Science, Borgir, 600 Akureyri, Iceland Copyright © 2013 Rikab Rajudeen All rights reserved Printing: Háskólaprent, Reykjavík, June 2013 ii Declaration I hereby confirm that I am the sole author of this thesis and it is a product of my own academic research. __________________________________________ Rikab Rajudeen iii Abstract Global climate change has had profound impacts on marine ecosystems by altering physical parameters such as: ocean temperature; salinity; and hydrographic features, which largely govern species richness and distribution of fish populations.
    [Show full text]
  • Conclusions of the 2020 Moving Iceland Forward Initiative
    Conclusions of the 2020 – Moving Iceland Forward initiative November 2010 Conclusions of the 2020 Moving Iceland Forward initiative Compiled by the Steering Committee of the 2020 – Moving Iceland Forward Initiative Introduction Dear recipient, This report presents the principal conclusions of the vast work that has been conducted throughout the country within the framework of the 2020 - Moving Iceland Forward initiative. More than a thousand people have contributed to this project, which involved inhabitants from all over the country, representatives from independent non-profit organisations, the economy and labour market, as well as personnel from ministries and institutions, municipal authorities, regional associations, members of parliament and ministers. The workshops that were run throughout the country focused on the development of employment and economic activity and tapping the opportunities that are to be found in each region as well as the country as a whole. These meetings and the volunteer work that so many people put into them are a reflection of one of Iceland’s greatest resources and one that that will certainly prove the most effective in pulling us safely out of the recession: the people themselves. The processes and accompanying proposals contain a clear vision of the future and effective methodologies for their implementation, as well as recommendations on the key tasks to be tackled immediately. The Iceland 2020 Policy Statement and proposals have been annexed to this document as a separate file. Nothing needs to be
    [Show full text]
  • Preparedness and Response Plan for Public Health Risks at International Airports
    Preparedness and Response Plan for Public Health Risks at International Airports 3rd Edition, 2018 English abstract Publisher: The Chief Epidemiologist for Iceland and the Department of Civil Protection of the National Commissioner of Police Contents Abbreviations ...................................................................................................................................................... 2 Introduction ........................................................................................................................................................ 3 Objectives of the Plan for international airports in Iceland ............................................................................... 3 International airports in Iceland ......................................................................................................................... 3 Phases of Disaster ............................................................................................................................................... 4 Early warning ...................................................................................................................................................... 4 Risk assessment and outbreak investigation ...................................................................................................... 5 Activation ............................................................................................................................................................ 6 Link to other response
    [Show full text]
  • Creating Institutions for Survival: Games Against Nature in Premodern Iceland
    Version 1 February, 1994 Creating Institutions for Survival: Games Against Nature in Premodern Iceland I. Introduction II. Risk and institutions for survival in poor agrarian economies i. general and specific risks ii. labor contracts and risk iii. tenancy contracts iv. unexplained institutional diversity III. The choice set and sources of risk in premodern Iceland IV. Institutions for survival i. coping with specific risk: kinship and communes ii. protecting the system: population control iii. protecting the system: restricting specialization iv. system failures: drifters and beggars v. land contracts and the insurance system vi. livestock contracts and the insurance system vii. coping with general risk: the storage of food V. Storage of fodder: Institutional failure? i. background ii. centralized or decentralized storage? iii. attenuated property rights in hay reserves and livestock VI. Conclusions i. the storage puzzle ii. the system as a whole Thrainn Eggertsson Workshop in Political Theory and Policy Analysis Indiana University 513 North Park Avenue Bloomington, Indiana 47408-3895 U.S.A. Telephone: (812)855-0441 Fax: (812)855-3150 Email: [email protected] Thrainn Eggertsson February 1994 CREATING INSTITUTIONS FOR SURVIVAL: GAMES AGAINST NATURE IN PREMODERN ICELAND I. Introduction We are concerned here with the creation of non-market institutions for reducing the cost of risk in poor agrarian societies that operate at low levels of technology without the benefits of insurance, credit and other intertemporal markets. 1 Institutions,
    [Show full text]
  • Iceland Volcano Unleashes Third Lava Stream 7 April 2021
    Iceland volcano unleashes third lava stream 7 April 2021 about halfway between the two sites of the earlier eruptions, gushing lava in small spurts and belching smoke. The new river of bright orange magma flowed down the slope to join an expanding field of lava at the base, now covering more than 33 hectares (81 acres), according to the last press briefing by the Icelandic Meteorological Office late Tuesday. The volcano is about 40 kilometres (25 miles) from the capital Reykjavik Lava is flowing from a third fissure that opened overnight in Iceland's nearly three-week-old volcanic eruption near the capital Reykjavik, officials said Wednesday. Tens of thousands of people have ventured to the site The spectacular eruption began on March 19 when a first fissure disgorged a steady stream of lava, flowing into the Geldingadalir valley of Mount The site had been closed to the public Monday Fagradalsfjall on Iceland's southwestern tip. because of the new activity, then reopened early Wednesday. The new split comes two days after two fissures opened around 700 metres (yards) from the initial Icelandic experts, who initially thought the eruption eruption, creating a long molten rivulet flowing into would be a short-lived affair, now think it could last a neighbouring valley. several weeks or more. The third lava stream, about a metre deep and 150 © 2021 AFP metres (490 feet) long, is a new draw for tens of thousands of gawkers taking advantage of the site's relatively easy access, just 40 kilometres (25 miles) from Reykjavik. It is about half a kilometre from the craters of the initial eruption.
    [Show full text]
  • Country Compendium
    Country Compendium A companion to the English Style Guide July 2021 Translation © European Union, 2011, 2021. The reproduction and reuse of this document is authorised, provided the sources and authors are acknowledged and the original meaning or message of the texts are not distorted. The right holders and authors shall not be liable for any consequences stemming from the reuse. CONTENTS Introduction ...............................................................................1 Austria ......................................................................................3 Geography ................................................................................................................... 3 Judicial bodies ............................................................................................................ 4 Legal instruments ........................................................................................................ 5 Government bodies and administrative divisions ....................................................... 6 Law gazettes, official gazettes and official journals ................................................... 6 Belgium .....................................................................................9 Geography ................................................................................................................... 9 Judicial bodies .......................................................................................................... 10 Legal instruments .....................................................................................................
    [Show full text]
  • Temporal Seismic Velocity Changes During the 2020 Rapid Inflation at Mt
    RESEARCH LETTER Temporal Seismic Velocity Changes During the 2020 10.1029/2020GL092265 Rapid Inflation at Mt. Þorbjörn-Svartsengi, Iceland, Key Points: Using Seismic Ambient Noise • Ambient noise-based temporal seismic wave velocity variations Yesim Cubuk-Sabuncu1 , Kristín Jónsdóttir1 , Corentin Caudron2 , provide insights into volcanic unrest Thomas Lecocq3 , Michelle Maree Parks1 , Halldór Geirsson4 , and Aurélien Mordret2 in the Reykjanes Peninsula • Seismic velocity drops to −1% during 1Icelandic Meteorological Office, Reykjavik, Iceland, 2University of Grenoble Alpes, University Savoie Mont Blanc, repeated magma intrusions 3 • The evolution of dv/v (%) correlates CNRS, IRD, University Gustave Eiffel, ISTerre, Grenoble, France, Royal Observatory of Belgium, Brussels, Belgium, 4 with deformation data University of Iceland, Reykjavik, Iceland Supporting Information: Abstract Repeated periods of inflation-deflation in the vicinity of Mt. Þorbjörn-Svartsengi, SW- Supporting Information may be found Iceland, were detected in January–July, 2020. We used seismic ambient noise and interferometry to in the online version of this article. characterize temporal variations of seismic velocities (dv/v, %). This is the first time in Iceland that dv/v variations are monitored in near real-time during volcanic unrest. The seismic station closest to Correspondence to: the inflation source center ( 1 km) showed the largest velocity drop ( 1%). Different frequency range Y. Cubuk-Sabuncu, [email protected] measurements, from 0.1 to 2 Hz,∼ show dv/v variations, which we interpret∼ in terms of varying depth sensitivity. The dv/v correlates with deformation measurements (GPS, InSAR), over the unrest period, Citation: indicating sensitivity to similar crustal processes. We interpret the velocity drop to be caused by crack Cubuk-Sabuncu, Y., Jónsdóttir, K., opening triggered by intrusive magmatic activity.
    [Show full text]
  • Appendix F – Schedule K
    Customs Automated Manifest Interface Requirements – Ocean ACE M1 Appendix F Schedule K This appendix provides a complete listing of foreign port codes in alphabetical order by country. Foreign Port Codes Code Ports by Country Albania 48100 All Other Albania Ports 48109 Durazzo 48109 Durres 48100 San Giovanni di Medua 48100 Shengjin 48100 Skele e Vlores 48100 Vallona 48100 Vlore 48100 Volore Algeria 72101 Alger 72101 Algiers 72100 All Other Algeria Ports 72123 Annaba 72105 Arzew 72105 Arziw 72107 Bejaia 72123 Beni Saf 72105 Bethioua 72123 Bona 72123 Bone 72100 Cherchell 72100 Collo 72100 Dellys 72100 Djidjelli 72101 El Djazair 72142 Ghazaouet 72142 Ghazawet 72100 Jijel 72100 Mers El Kebir 72100 Mestghanem 72100 Mostaganem 72142 Nemours 72179 Oran CAMIR V1.4 February 2017 Appendix F F-1 Customs Automated Manifest Interface Requirements – Ocean ACE M1 72189 Skikda 72100 Tenes 72179 Wahran American Samoa 95101 Pago Pago Harbor Angola 76299 All Other Angola Ports 76299 Ambriz 76299 Benguela 76231 Cabinda 76299 Cuio 76274 Lobito 76288 Lombo 76288 Lombo Terminal 76278 Luanda 76282 Malongo Oil Terminal 76279 Namibe 76299 Novo Redondo 76283 Palanca Terminal 76288 Port Lombo 76299 Porto Alexandre 76299 Porto Amboim 76281 Soyo Oil Terminal 76281 Soyo-Quinfuquena term. 76284 Takula 76284 Takula Terminal 76299 Tombua Anguilla 24821 Anguilla 24823 Sombrero Island Antigua 24831 Parham Harbour, Antigua 24831 St. John's, Antigua Argentina 35700 Acevedo 35700 All Other Argentina Ports 35710 Bagual 35701 Bahia Blanca 35705 Buenos Aires 35703 Caleta Cordova 35703 Caleta Olivares 35703 Caleta Olivia 35711 Campana 35702 Comodoro Rivadavia 35700 Concepcion del Uruguay 35700 Diamante 35700 Ibicuy CAMIR V1.4 February 2017 Appendix F F-2 Customs Automated Manifest Interface Requirements – Ocean ACE M1 35737 La Plata 35740 Madryn 35739 Mar del Plata 35741 Necochea 35779 Pto.
    [Show full text]