Sharon R. Allen Is a Physical Volcanologist Who Has Worked On
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1350-5 Geologist
POSITION DESCRIPTION 1. Position Number 2. Explanation (show any positions replaced) 3. Reason for Submission New Redescription Reestablishment Standardized PD Other 4. Service 5. Subject to Identical Addition (IA) Action HQ Field Yes (multiple use) No (single incumbent) 6. Position Specifications 7. Financial Statement Required 10. Position Sensitivity and Risk Designation Subject to Random Drug Testing Yes No Executive Personnel-OGE-278 Non-Sensitive Employment and Financial Interest-OGE-450 Non-Sensitive: Low-Risk Subject to Medical Standards/Surveillance Yes No None required Public Trust Telework Suitable Yes No 8. Miscellaneous 9. Full Performance Level Non-Sensitive: Moderate-Risk Fire Position Yes No Functional Code: -- Pay Plan: Non-Sensitive: High-Risk Law Enforcement Position Yes No BUS: - - Grade: National Security 11. Position is 12. Position Status Noncritical-Sensitive: Moderate-Risk Competitive SES Noncritical-Sensitive: High-Risk 2-Supervisory Excepted (specify in remarks) SL/ST Critical-Sensitive: High-Risk 4-Supervisor (CSRA) 13. Duty Station Special Sensitive: High-Risk 5-Management Official 6-Leader: Type I 14. Employing Office Location 15. Fair Labor Standards Act Exempt Nonexempt 7-Leader: Type II 16. Cybersecurity Code 17. Competitive Area Code: 8-Non-Supervisory #1: #2: - - #3: - - Competitive Level Code: 18. Classified/Graded by Official Title of Position Pay Plan Occupational Code Grade Initial Date a. Department, Bureau, or Office b. Second Level Review -- -- 19. Organizational Title of Position (if different from, or in addition to, official title) 20. Name of Employee (if vacant, specify) 21. Department, Agency, or Establishment c. Third Subdivision U.S. Department of the Interior a. Bureau/First Subdivision d. -
A Pictorial Summary of the Life and Work of George Patrick Leonard Walker
A pictorial summary of the life and work of George Patrick Leonard Walker SCOTT K. ROWLAND1* & R. S. J. SPARKS2 1Department of Geology and Geophysics, University of Hawaii at Manoa, 1680 East–West Road, Honolulu, Hawaii, USA 2Department of Earth Sciences, University of Bristol, Bristol BS8 1RJ, UK *Corresponding author (e-mail: [email protected]) Abstract: George Patrick Leonard Walker was one of the fathers of modern volcanology. He worked in many parts of the world and contributed to the understanding of a huge range of volca- nological processes. He was a field geologist at heart, and one of his greatest skills was the ability to quantify volcanological ideas – not with obscure statistical treatments or complex numerical models, but with clear graphical relationships supported by tremendous amounts of carefully col- lected field data. Here we present some glimpses of his life and work in photographs and diagrams. George Walker was born on 2 March 1926 in Iceland, as well as to India, Italy, the Azores and London. In 1939, when he was 13, the family Africa, among other locations. In 1978 George moved to Northern Ireland. In 1948 and 1949, moved to the University of Auckland and in 1982 respectively, George received his Bachelors and he moved to the University of Hawaii. Over the Masters degrees from Queen’s University, Belfast. span of his career he visited almost every volcanic In 1956 he completed his PhD at the University of region in the world, including Australia, the Azores, Leeds with a dissertation on secondary minerals in the Canary Islands, Chile, China, Costa Rica, igneous rocks of Northern Iceland. -
GEOLOGY What Can I Do with This Major?
GEOLOGY What can I do with this major? AREAS EMPLOYERS STRATEGIES Some employment areas follow. Many geolo- gists specialize at the graduate level. ENERGY (Oil, Coal, Gas, Other Energy Sources) Stratigraphy Petroleum industry including oil and gas explora- Geologists working in the area of energy use vari- Sedimentology tion, production, storage and waste disposal ous methods to determine where energy sources are Structural Geology facilities accumulated. They may pursue work tasks including Geophysics Coal industry including mining exploration, grade exploration, well site operations and mudlogging. Geochemistry assessment and waste disposal Seek knowledge in engineering to aid communication, Economic Geology Federal government agencies: as geologists often work closely with engineers. Geomorphology National Labs Coursework in geophysics is also advantageous Paleontology Department of Energy for this field. Fossil Energy Bureau of Land Management Gain experience with computer modeling and Global Hydrogeology Geologic Survey Positioning System (GPS). Both are used to State government locate deposits. Consulting firms Many geologists in this area of expertise work with oil Well services and drilling companies and gas and may work in the geographic areas Oil field machinery and supply companies where deposits are found including offshore sites and in overseas oil-producing countries. This industry is subject to fluctuations, so be prepared to work on a contract basis. Develop excellent writing skills to publish reports and to solicit grants from government, industry and private foundations. Obtain leadership experience through campus organi- zations and work experiences for project man- agement positions. (Geology, Page 2) AREAS EMPLOYERS STRATEGIES ENVIRONMENTAL GEOLOGY Sedimentology Federal government agencies: Geologists in this category may focus on studying, Hydrogeology National Labs protecting and reclaiming the environment. -
Plumbing System Dynamics at Kolumbo Submarine Volcano, Greece, Prior to the 1650 CE Explosive Eruption
Goldschmidt2019 Abstract Plumbing system dynamics at Kolumbo submarine volcano, Greece, prior to the 1650 CE explosive eruption F. MASTROIANNI1,2,*, I. FANTOZZI2, C.M. PETRONE3, G.E. VOUGIOUKALAKIS4, E. BRASCHI5, L. FRANCALANCI2 1DST, University of Pisa, Via S. Maria 53, Pisa, IT (*correspondence: [email protected]) 2DST, University of Florence, Via G. LaPira, 4, Florence, IT 3The Natural History Museum, CromWell Road, London, UK 4HSGME, S. Lui 1, Olympic Village, Athens, GR 5CNR-IGG, Via G. LaPira, 4, Florence, IT Kolumbo is the largest of tWenty submarine volcanic cones tectonically aligned in the transtentional Anydros basin, NE of Santorini, representing one of the most seismically active Zones in the South Aegean Volcanic Arc. Kolumbo explosively erupted in 1650 CE, causing the death of 70 people on Santorini. Explorative cruises employing ROVs shoWed the presence of a high temperature (220°C) hydrothermal field With CO2-rich discharges and accumulation of acidic Water at the bottom of the crater (505m bsl) [1], increasing the haZard of this active system. A possible magma chamber Was recognized beloW the crater at depth 9-6 km by seismic data [2], Which is separated from the storage system of Santorini, as suggested also for the mantle source by geochemical data [3]. We present neW petrographic, geochemical and isotopic data (on Whole-rock, minerals and glasses) of samples collected during the cruises. Most samples represent the juvenile products of the 1650 CE activity, characterizing the different magmas interacting before the eruption. They consist of White rhyolitic pumices With grey and black bands, also including centimetric to millimetric, basaltic-andesitic enclaves. -
A Different Ocean Acidification Hazard—The Kolumbo Submarine Volcano
A different ocean acidifi cation hazard—The Kolumbo submarine volcano example Peter G. Brewer Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, California 95039, USA Detailed knowledge of the geochemistry of CO2, the signature mol- column with its large capacity for dissolution. If transport overcomes this ecule of the 21st century, is a modern day requirement for almost all geo- aqueous chemical sink—the bubble streams typically dissolve within ~10 chemists. Concerns over CO2 driven contemporary climate change, its m rise—the gas will be exposed to the atmosphere at the wind-swept open relationship to past climates in Earth history, skills required for geologic ocean surface. CO2 sequestration, and the rapid emergence of ocean acidifi cation as an There is also the matter of scale. The estimated 400 metric tons environmental threat are all prime subject matter for the literate geoscien- of dissolved CO2 in the Kolumbo crater is far less than the 100,000 – tist today. In this issue of Geology, Carey et al. (2013, p. 1035) describe 300,000 tons believed to have been released in the Lake Nyos event. Of a new, interesting, and quite powerful natural example of the intersection course, we could be at an early stage of the CO2 buildup, and over time, of these concerns in describing the build-up of a large body of acidic, far larger quantities could accumulate. Carey et al. show that the local dense CO2 rich sea water in the shallow crater of the Kolumbo volcano source is an extensive hydrothermal vent fi eld, releasing almost pure close to the Mediterranean island of Santorini. -
Mars Field Geology, Biology, and Paleontology Workshop, Summary
MARS FIELD GEOLOGY, BIOLOGY, AND PALEONTOLOGY WORKSHOP: SUMMARY AND RECOMMENDATIONS November 18–19, 1998 Space Center Houston, Houston, Texas LPI Contribution No. 968 MARS FIELD GEOLOGY, BIOLOGY, AND PALEONTOLOGY WORKSHOP: SUMMARY AND RECOMMENDATIONS November 18–19, 1998 Space Center Houston Edited by Nancy Ann Budden Lunar and Planetary Institute Sponsored by Lunar and Planetary Institute National Aeronautics and Space Administration Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058-1113 LPI Contribution No. 968 Compiled in 1999 by LUNAR AND PLANETARY INSTITUTE The Institute is operated by the Universities Space Research Association under Contract No. NASW-4574 with the National Aeronautcis and Space Administration. Material in this volume may be copied without restraint for library, abstract service, education, or personal research purposes; however, republication of any paper or portion thereof requires the written permission of the authors as well as the appropriate acknowledgment of this publication. This volume may be cited as Budden N. A., ed. (1999) Mars Field Geology, Biology, and Paleontology Workshop: Summary and Recommendations. LPI Contribution No. 968, Lunar and Planetary Institute, Houston. 80 pp. This volume is distributed by ORDER DEPARTMENT Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058-1113 Phone: 281-486-2172 Fax: 281-486-2186 E-mail: [email protected] Mail order requestors will be invoiced for the cost of shipping and handling. _________________ Cover: Mars test suit subject and field geologist Dean Eppler overlooking Meteor Crater, Arizona, in Mark III Mars EVA suit. PREFACE In November 1998 the Lunar and Planetary Institute, under the sponsorship of the NASA/HEDS (Human Exploration and Development of Space) Enterprise, held a workshop to explore the objectives, desired capabilities, and operational requirements for the first human exploration of Mars. -
Exploring Submarine Arc Volcanoes Steven Carey University of Rhode Island, [email protected]
University of Rhode Island DigitalCommons@URI Graduate School of Oceanography Faculty Graduate School of Oceanography Publications 2007 Exploring Submarine Arc Volcanoes Steven Carey University of Rhode Island, [email protected] Haraldur Sigurdsson University of Rhode Island Follow this and additional works at: https://digitalcommons.uri.edu/gsofacpubs Terms of Use All rights reserved under copyright. Citation/Publisher Attribution Carey, S., and H. Sigurdsson. 2007. Exploring submarine arc volcanoes. Oceanography 20(4):80–89, https://doi.org/10.5670/ oceanog.2007.08. Available at: https://doi.org/10.5670/oceanog.2007.08 This Article is brought to you for free and open access by the Graduate School of Oceanography at DigitalCommons@URI. It has been accepted for inclusion in Graduate School of Oceanography Faculty Publications by an authorized administrator of DigitalCommons@URI. For more information, please contact [email protected]. This article has This been published in or collective redistirbution of any portion of this article by photocopy machine, reposting, or other means is permitted only with the approval of The approval portionthe ofwith any permitted articleonly photocopy by is of machine, reposting, this means or collective or other redistirbution SP ec I A L Iss U E On Ocean E X P L O R ATIO N Oceanography , Volume 20, Number 4, a quarterly journal of The 20, Number 4, a quarterly , Volume O ceanography Society. Copyright 2007 by The 2007 by Copyright Society. ceanography Exploring O ceanography Society. All rights All reserved. Society. ceanography O Submarine Arc Volcanoes or Th e [email protected] Send Society. ceanography to: correspondence all B Y S T even C A R E Y an D H A R A LDUR SIGURD ss O N Three quarters of Earth’s volcanic activ- although a significant part of arc volca- tion of tsunamis (Latter, 1981). -
East-African Rift System Geological Settings of Geothermal Resources and Their Prospects
Presented at Short Course III on Exploration for Geothermal Resources, organized by UNU-GTP and KenGen, at Lake Naivasha, Kenya, October 24 - November 17, 2008. GEOTHERMAL TRAINING PROGRAMME Kenya Electricity Generating Co., Ltd. EAST-AFRICAN RIFT SYSTEM GEOLOGICAL SETTINGS OF GEOTHERMAL RESOURCES AND THEIR PROSPECTS Kristján Saemundsson ISOR – Iceland GeoSurvey Grensásvegur 9 108 Reykjavík ICELAND [email protected] 1. INTRODUCTION The geothermal areas of the East-African Rift System are not all of the same type. Even though related to the Rift the geological settings are different. Some are volcanic, others are not. Parts of the rift zones are highly volcanic but large segments of them are sediment or lake filled grabens. Extreme cases are also found where rift-related fractures produce permeability in basement rocks. In retrospect it may be useful to point out the differences and likely resource characteristics. Below seven types are described, and in which countries they occur as the dominant type. Three of those types are genuine high-temperature geothermal resources. Two may be accessible only in the off flow zone of high-temperature geothermal fields. One is of the sedimentary basin type resource of low to medium temperature, and one other of the low-temperature type is related to fractured basement rock. 2. OFF RIFT VOLCANOES Eritrea (Alid), Yemen (Al Lisi): Volcanic HT-systems suitable for back pressure turbines Main resource at rather high ground (Eritrea) Off flow probably present, perhaps suitable for binary In case of off flow temperature inversion likely Research methods: Geology/volcanology, hydrology, geochemistry, TEM/MT, airborne magnetics, seismicity, gravity 3. -
Journal of Volcanology and Geothermal Research
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH An International Journal on the Geophysical, Geochemical, Petrological, Economic and Environmental Aspects of Volcanology and Geothermal Research AUTHOR INFORMATION PACK TABLE OF CONTENTS XXX . • Description p.1 • Audience p.1 • Impact Factor p.1 • Abstracting and Indexing p.2 • Editorial Board p.2 • Guide for Authors p.4 ISSN: 0377-0273 DESCRIPTION . An international research journal with focus on volcanic and geothermal processes and their impact on the environment and society. Submission of papers covering the following aspects of volcanology and geothermal research are encouraged: (1) Geological aspects of volcanic systems: volcano stratigraphy, structure and tectonic influence; eruptive history; evolution of volcanic landforms; eruption style and progress; dispersal patterns of lava and ash; analysis of real-time eruption observations. (2) Geochemical and petrological aspects of volcanic rocks: magma genesis and evolution; crystallization; volatile compositions, solubility, and degassing; volcanic petrography and textural analysis. (3) Hydrology, geochemistry and measurement of volcanic and hydrothermal fluids: volcanic gas emissions; fumaroles and springs; crater lakes; hydrothermal mineralization. (4) Geophysical aspects of volcanic systems: physical properties of volcanic rocks and magmas; heat flow studies; volcano seismology, geodesy and remote sensing. (5) Computational modeling and experimental simulation of magmatic and hydrothermal processes: eruption dynamics; magma transport and storage; plume dynamics and ash dispersal; lava flow dynamics; hydrothermal fluid flow; thermodynamics of aqueous fluids and melts. (6) Volcano hazard and risk research: hazard zonation methodology, development of forecasting tools; assessment techniques for vulnerability and impact. The journal does not accept geothermal research papers not related to volcanism. AUDIENCE . Volcanologists, petrologists, geochemists, geothermics. -
Educators Guide
EDUCATORS GUIDE 02 | Supervolcanoes Volcanism is one of the most creative and destructive processes on our planet. It can build huge mountain ranges, create islands rising from the ocean, and produce some of the most fertile soil on the planet. It can also destroy forests, obliterate buildings, and cause mass extinctions on a global scale. To understand volcanoes one must first understand the theory of plate tectonics. Plate tectonics, while generally accepted by the geologic community, is a relatively new theory devised in the late 1960’s. Plate tectonics and seafloor spreading are what geologists use to interpret the features and movements of Earth’s surface. According to plate tectonics, Earth’s surface, or crust, is made up of a patchwork of about a dozen large plates and many smaller plates that move relative to one another at speeds ranging from less than one to ten centimeters per year. These plates can move away from each other, collide into each other, slide past each other, or even be forced beneath each other. These “subduction zones” are generally where the most earthquakes and volcanoes occur. Yellowstone Magma Plume (left) and Toba Eruption (cover page) from Supervolcanoes. 01 | Supervolcanoes National Next Generation Science Standards Content Standards - Middle School Content Standards - High School MS-ESS2-a. Use plate tectonic models to support the HS-ESS2-a explanation that, due to convection, matter Use Earth system models to support cycles between Earth’s surface and deep explanations of how Earth’s internal and mantle. surface processes operate concurrently at different spatial and temporal scales to MS-ESS2-e form landscapes and seafloor features. -
1350-13 Geologist
POSITION DESCRIPTION 1. Position Number 2. Explanation (show any positions replaced) 3. Reason for Submission New Redescription Reestablishment Standardized PD Other 4. Service 5. Subject to Identical Addition (IA) Action HQ Field Yes (multiple use) No (single incumbent) 6. Position Specifications 7. Financial Statement Required 10. Position Sensitivity and Risk Designation Subject to Random Drug Testing Yes No Executive Personnel-OGE-278 Non-Sensitive Employment and Financial Interest-OGE-450 Non-Sensitive: Low-Risk Subject to Medical Standards/Surveillance Yes No None required Public Trust Telework Suitable Yes No 8. Miscellaneous 9. Full Performance Level Non-Sensitive: Moderate-Risk Fire Position Yes No Functional Code: -- Pay Plan: Non-Sensitive: High-Risk Law Enforcement Position Yes No BUS: - - Grade: National Security 11. Position is 12. Position Status Noncritical-Sensitive: Moderate-Risk Competitive SES Noncritical-Sensitive: High-Risk 2-Supervisory Excepted (specify in remarks) SL/ST Critical-Sensitive: High-Risk 4-Supervisor (CSRA) 13. Duty Station Special Sensitive: High-Risk 5-Management Official 6-Leader: Type I 14. Employing Office Location 15. Fair Labor Standards Act Exempt Nonexempt 7-Leader: Type II 16. Cybersecurity Code 17. Competitive Area Code: 8-Non-Supervisory #1: #2: - - #3: - - Competitive Level Code: 18. Classified/Graded by Official Title of Position Pay Plan Occupational Code Grade Initial Date a. Department, Bureau, or Office b. Second Level Review -- -- 19. Organizational Title of Position (if different from, or in addition to, official title) 20. Name of Employee (if vacant, specify) 21. Department, Agency, or Establishment c. Third Subdivision U.S. Department of the Interior a. Bureau/First Subdivision d. -
GEOLOGY THEME STUDY Page 1
NATIONAL HISTORIC LANDMARKS Dr. Harry A. Butowsky GEOLOGY THEME STUDY Page 1 Geology National Historic Landmark Theme Study (Draft 1990) Introduction by Dr. Harry A. Butowsky Historian, History Division National Park Service, Washington, DC The Geology National Historic Landmark Theme Study represents the second phase of the National Park Service's thematic study of the history of American science. Phase one of this study, Astronomy and Astrophysics: A National Historic Landmark Theme Study was completed in l989. Subsequent phases of the science theme study will include the disciplines of biology, chemistry, mathematics, physics and other related sciences. The Science Theme Study is being completed by the National Historic Landmarks Survey of the National Park Service in compliance with the requirements of the Historic Sites Act of l935. The Historic Sites Act established "a national policy to preserve for public use historic sites, buildings and objects of national significance for the inspiration and benefit of the American people." Under the terms of the Act, the service is required to survey, study, protect, preserve, maintain, or operate nationally significant historic buildings, sites & objects. The National Historic Landmarks Survey of the National Park Service is charged with the responsibility of identifying America's nationally significant historic property. The survey meets this obligation through a comprehensive process involving thematic study of the facets of American History. In recent years, the survey has completed National Historic Landmark theme studies on topics as diverse as the American space program, World War II in the Pacific, the US Constitution, recreation in the United States and architecture in the National Parks.