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Area Changes of Glaciers on Active Volcanoes in Latin America Between 1986 and 2015 Observed from Multi-Temporal Satellite Imagery
Journal of Glaciology (2019), Page 1 of 15 doi: 10.1017/jog.2019.30 © The Author(s) 2019. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons. org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited. Area changes of glaciers on active volcanoes in Latin America between 1986 and 2015 observed from multi-temporal satellite imagery JOHANNES REINTHALER,1,2 FRANK PAUL,1 HUGO DELGADO GRANADOS,3 ANDRÉS RIVERA,2,4 CHRISTIAN HUGGEL1 1Department of Geography, University of Zurich, Zurich, Switzerland 2Centro de Estudios Científicos, Valdivia, Chile 3Instituto de Geofisica, Universidad Nacional Autónoma de México, Mexico City, Mexico 4Departamento de Geografía, Universidad de Chile, Chile Correspondence: Johannes Reinthaler <[email protected]> ABSTRACT. Glaciers on active volcanoes are subject to changes in both climate fluctuations and vol- canic activity. Whereas many studies analysed changes on individual volcanoes, this study presents for the first time a comparison of glacier changes on active volcanoes on a continental scale. Glacier areas were mapped for 59 volcanoes across Latin America around 1986, 1999 and 2015 using a semi- automated band ratio method combined with manual editing using satellite images from Landsat 4/5/ 7/8 and Sentinel-2. Area changes were compared with the Smithsonian volcano database to analyse pos- sible glacier–volcano interactions. Over the full period, the mapped area changed from 1399.3 ± 80 km2 − to 1016.1 ± 34 km2 (−383.2 km2)or−27.4% (−0.92% a 1) in relative terms. -
To Late-Holocene Explosive Rhyolitic Eruptions from Chaitén Volcano, Chile
Andean Geology 40 (2): 216-226. May, 2013 Andean Geology doi: 10.5027/andgeoV40n2-a02 formerly Revista Geológica de Chile www.andeangeology.cl Evidence of mid- to late-Holocene explosive rhyolitic eruptions from Chaitén Volcano, Chile Sebastian F.L. Watt1, 2, David M. Pyle1, Tamsin A. Mather1 1 Department of Earth Sciences, University of Oxford, South Parks Road, Oxford OX1 3AN, U.K. [email protected]; [email protected]; [email protected] 2 National Oceanography Centre, Southampton, University of Southampton Waterfront Campus, European Way, Southampton SO14 3ZH, U.K. ABSTRACT. The 2008 eruption of Chaitén Volcano was widely cited as the first activity at the volcano for over 9000 years. However, we have identified evidence from proximal pyroclastic deposits for three additional explosive eruptions of Chaitén within the past 5000 years. Chaitén has therefore produced at least five explosive eruptions in the Holocene, making it among the most active volcanoes, in terms of explosive output, in the southern part of the Andean Southern Volcanic Zone. All of the five identified Holocene explosive eruptions produced homogeneous high-silica rhyolite, with near identical compositions. Based on our pyroclastic sequence, we suggest that the largest-volume Holocene eruption of Chaitén occurred at ~4.95 ka, and we correlate this with the Mic2 deposit, which was previously thought to originate from the nearby Michinmahuida Volcano. Keywords: Chaitén Volcano, Andean southern volcanic zone, Holocene tephra stratigraphy, Rhyolite, Explosive volcanism. RESUMEN. Evidencia de erupciones riolíticas del Holoceno medio a tardío del volcán Chaitén, Chile. La erupción del volcán Chaitén en el año 2008 ha sido mencionada ampliamente como la primera actividad de este en los últimos 9 mil años. -
Lawrence Berkeley National Laboratory Recent Work
Lawrence Berkeley National Laboratory Recent Work Title Assessment of high enthalpy geothermal resources and promising areas of Chile Permalink https://escholarship.org/uc/item/9s55q609 Authors Aravena, D Muñoz, M Morata, D et al. Publication Date 2016 DOI 10.1016/j.geothermics.2015.09.001 Peer reviewed eScholarship.org Powered by the California Digital Library University of California Assessment of high enthalpy geothermal resources and promising areas of Chile Author links open overlay panel DiegoAravena ab MauricioMuñoz ab DiegoMorata ab AlfredoLahsen ab Miguel ÁngelParada ab PatrickDobson c Show more https://doi.org/10.1016/j.geothermics.2015.09.001 Get rights and content Highlights • We ranked geothermal prospects into measured, Indicated and Inferred resources. • We assess a comparative power potential in high-enthalpy geothermal areas. • Total Indicated and Inferred resource reaches 659 ± 439 MWe divided among 9 areas. • Data from eight additional prospects suggest they are highly favorable targets. • 57 geothermal areas are proposed as likely future development targets. Abstract This work aims to assess geothermal power potential in identified high enthalpy geothermal areas in the Chilean Andes, based on reservoir temperature and volume. In addition, we present a set of highly favorable geothermal areas, but without enough data in order to quantify the resource. Information regarding geothermal systems was gathered and ranked to assess Indicated or Inferred resources, depending on the degree of confidence that a resource may exist as indicated by the geoscientific information available to review. Resources were estimated through the USGS Heat in Place method. A Monte Carlo approach is used to quantify variability in boundary conditions. -
Report on Cartography in the Republic of Chile 2011 - 2015
REPORT ON CARTOGRAPHY IN CHILE: 2011 - 2015 ARMY OF CHILE MILITARY GEOGRAPHIC INSTITUTE OF CHILE REPORT ON CARTOGRAPHY IN THE REPUBLIC OF CHILE 2011 - 2015 PRESENTED BY THE CHILEAN NATIONAL COMMITTEE OF THE INTERNATIONAL CARTOGRAPHIC ASSOCIATION AT THE SIXTEENTH GENERAL ASSEMBLY OF THE INTERNATIONAL CARTOGRAPHIC ASSOCIATION AUGUST 2015 1 REPORT ON CARTOGRAPHY IN CHILE: 2011 - 2015 CONTENTS Page Contents 2 1: CHILEAN NATIONAL COMMITTEE OF THE ICA 3 1.1. Introduction 3 1.2. Chilean ICA National Committee during 2011 - 2015 5 1.3. Chile and the International Cartographic Conferences of the ICA 6 2: MULTI-INSTITUTIONAL ACTIVITIES 6 2.1 National Spatial Data Infrastructure of Chile 6 2.2. Pan-American Institute for Geography and History – PAIGH 8 2.3. SSOT: Chilean Satellite 9 3: STATE AND PUBLIC INSTITUTIONS 10 3.1. Military Geographic Institute - IGM 10 3.2. Hydrographic and Oceanographic Service of the Chilean Navy – SHOA 12 3.3. Aero-Photogrammetric Service of the Air Force – SAF 14 3.4. Agriculture Ministry and Dependent Agencies 15 3.5. National Geological and Mining Service – SERNAGEOMIN 18 3.6. Other Government Ministries and Specialized Agencies 19 3.7. Regional and Local Government Bodies 21 4: ACADEMIC, EDUCATIONAL AND TRAINING SECTOR 21 4.1 Metropolitan Technological University – UTEM 21 4.2 Universities with Geosciences Courses 23 4.3 Military Polytechnic Academy 25 5: THE PRIVATE SECTOR 26 6: ACKNOWLEDGEMENTS AND ACRONYMS 28 ANNEX 1. List of SERNAGEOMIN Maps 29 ANNEX 2. Report from CENGEO (University of Talca) 37 2 REPORT ON CARTOGRAPHY IN CHILE: 2011 - 2015 PART ONE: CHILEAN NATIONAL COMMITTEE OF THE ICA 1.1: Introduction 1.1.1. -
Area Changes of Glaciers on Active Volcanoes in Latin America Between 1986 and 2015 Observed from Multi-Temporal Satellite Imagery
Journal of Glaciology (2019), 65(252) 542–556 doi: 10.1017/jog.2019.30 © The Author(s) 2019. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons. org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited. Area changes of glaciers on active volcanoes in Latin America between 1986 and 2015 observed from multi-temporal satellite imagery JOHANNES REINTHALER,1,2 FRANK PAUL,1 HUGO DELGADO GRANADOS,3 ANDRÉS RIVERA,2,4 CHRISTIAN HUGGEL1 1Department of Geography, University of Zurich, Zurich, Switzerland 2Centro de Estudios Científicos, Valdivia, Chile 3Instituto de Geofisica, Universidad Nacional Autónoma de México, Mexico City, Mexico 4Departamento de Geografía, Universidad de Chile, Chile Correspondence: Johannes Reinthaler <[email protected]> ABSTRACT. Glaciers on active volcanoes are subject to changes in both climate fluctuations and vol- canic activity. Whereas many studies analysed changes on individual volcanoes, this study presents for the first time a comparison of glacier changes on active volcanoes on a continental scale. Glacier areas were mapped for 59 volcanoes across Latin America around 1986, 1999 and 2015 using a semi- automated band ratio method combined with manual editing using satellite images from Landsat 4/5/ 7/8 and Sentinel-2. Area changes were compared with the Smithsonian volcano database to analyse pos- sible glacier–volcano interactions. Over the full period, the mapped area changed from 1399.3 ± 80 km2 − to 1016.1 ± 34 km2 (−383.2 km2)or−27.4% (−0.92% a 1) in relative terms. -
Erupción Delvolcán Chaitén Primer Informe Técnico, 03 De Mayo De 2008 Ovdas-Sernageomin
ERUPCIÓN DELVOLCÁN CHAITÉN PRIMER INFORME TÉCNICO, 03 DE MAYO DE 2008 OVDAS-SERNAGEOMIN 1. ANTECEDENTES GENERALES A partir de las 20:56 hrs. del 30.04.08 se inició una seguidilla de sismos de magnitud importante, lo cual fue comunicado a SERNAGEOMIN por el Sr. Guillermo Núñez, Director Regional de ONEMI de Región de Los Lagos, alrededor de las 24:00 hrs. del mismo día. Dichos sismos fueron percibidos por la población de las ciudades de Chaitén, Futaleufú y Palena. La sucesión de sismos ya indicada fue coronada por el inicio de una violenta y repentina erupción volcánica aproximadamente a las 23:38 hrs. del 01.05.08, la cual, por las condiciones de oscuridad, fue inicialmente atribuida al volcán Michinmahuida. Sin embargo, en la mañana del día 02.05.08, fue confirmada, mediante sobrevuelo, la erupción del volcán Chaitén. En efecto, a las 02.35 hrs. del 02.05.08, el Sr. Núñez, informó a SERNAGEOMIN de la caída de cenizas volcánicas en los alrededores de la ciudad de Chaitén, indicando que provendría desde el volcán Michinmahuida, ubicado inmediatamente al noreste de la misma ciudad. Ante tal situación, la autoridad regional decretó Alerta Roja administrativa, e inició todas las acciones de prevención pertinentes a dicha alerta, iniciando la evacuación de personas que vivían en sectores aledaños más afectados por la caída de ceniza. Por su parte, SERNAGEOMIN estableció Alerta Volcánica Roja y activó la preparación de equipamiento para monitoreo sísmico y la movilización de personal desde OVDAS, en Temuco, hacia Chaitén, lo cual se concretó la mañana del 03.02.08. -
Geochemistry and Tectonics of the Chilean 80Uthern Andes Basaltic Quaternary Volcanism (37-46°8)
Geochemistry and tectonics of the Chilean 80uthern Andes basaltic Quaternary volcanism (37-46°8) Leopoldo López-Escobar José Cembrano Departamento de Geologla, Universidad de Chile, Casilla 13518, Santiago 21 , Chile Hugo Moreno ABSTRACT Between latitudes 37° and 46°S 01 the Andes, the Nazca-South America Plate convergen ce Is currently slightly oblique, Postglacial volcanism has been continuous and intense, being expressed as numerous composite stratovolcanoes (SV) and hundreds 01 minoreruptive centers (MEC). The overall trend 01 the volcanic are is NNE (- N100E), and its main structural leature is Ihe 1,000 km long, also NNE-trending, Uquiñe-Olqui lault zone (lOFZ). Some MEC are spatially associated wilh the main NNE-trending lineaments 01 the lOFZ; others, such as Ihe Carrán-los Venados volcanic group (40.3°S), lorm N50-700E clusters, oblique to the overall trend 01 the volcanic are. Between 37° a,d 41.5°S, Central Southem Volcanic Zone (CSVZ), the SV lorm either N50-600W or N50-700E alignments. Between 41.5° and 46°S, South Southem Volcanic Zone (SSVZ), Ihe distribution 01 SV is similar. The alignment 01 parasitic vents, MEC and SV suggests that the direction O'H .. in Ihe CSVZ and SSVZ is roughly N50-700E, which may rellect a transpressional tectonic regime, 01 m resulting lrom a combination 01 dextral strike-slip and shortening across the are. Most young extensional NE-trending volcanic chains (late Pleistocene-Holocene), including SV ± MEC contain mainly basal tic rocks. This is consistent with a short residen ce time 01 magmas in the crust. Older volcanic complexes (Eariy Pleistocene) and volcanic edil ices controlled by NW-trending contractional Iractures and laults present not only basaltic rocks, but also medium andesites, dacites and even rhyolites. -
Redalyc.Late Holocene History of Chaitén Volcano: New Evidence For
Andean Geology ISSN: 0718-7092 [email protected] Servicio Nacional de Geología y Minería Chile Lara, Luis E.; Moreno, Rodrigo; Amigo, Álvaro; Hoblitt, Richard P; Pierson, Thomas C. Late Holocene history of Chaitén Volcano: New evidence for a 17th century eruption Andean Geology, vol. 40, núm. 2, mayo, 2013, pp. 249-261 Servicio Nacional de Geología y Minería Santiago, Chile Available in: http://www.redalyc.org/articulo.oa?id=173927491004 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Andean Geology 40 (2): 249-261. May, 2013 Andean Geology doi: 10.5027/andgeoV40n2-a04 formerly Revista Geológica de Chile www.andeangeology.cl Late Holocene history of Chaitén Volcano: New evidence for a 17th century eruption Luis E. Lara1, Rodrigo Moreno2, Álvaro Amigo1, Richard P. Hoblitt3, Thomas C. Pierson3 1 Servicio Nacional de Geología y Minería, Programa de Riesgo Volcánico, Avda. Santa María 0104, Santiago, Chile. [email protected]; [email protected] 2 Facultad de Artes Liberales, Departamento de Historia, Universidad Adolfo Ibáñez, Av. Padre Hurtado 750, Viña del Mar, Chile. [email protected] 3 United States Geological Survey, Cascades Volcano Observatory, 1300 SE Cardinal Court, Vancouver, WA 98683, USA. [email protected]; [email protected] ABSTRACT. Prior to May 2008, it was thought that the last eruption of Chaitén Volcano occurred more than 5,000 years ago, a rather long quiescent period for a volcano in such an active arc segment. -
Glacier Inventory and Recent Glacier Variations in the Andes of Chile, South America
Annals of Glaciology 58(75pt2) 2017 doi: 10.1017/aog.2017.28 166 © The Author(s) 2017. This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is unaltered and is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use or in order to create a derivative work. Glacier inventory and recent glacier variations in the Andes of Chile, South America Gonzalo BARCAZA,1 Samuel U. NUSSBAUMER,2,3 Guillermo TAPIA,1 Javier VALDÉS,1 Juan-Luis GARCÍA,4 Yohan VIDELA,5 Amapola ALBORNOZ,6 Víctor ARIAS7 1Dirección General de Aguas, Ministerio de Obras Públicas, Santiago, Chile. E-mail: [email protected] 2Department of Geography, University of Zurich, Zurich, Switzerland 3Department of Geosciences, University of Fribourg, Fribourg, Switzerland 4Institute of Geography, Pontificia Universidad Católica de Chile, Santiago, Chile 5Centre for Hydrology, University of Saskatchewan, Saskatoon, Canada 6Department of Geology, University of Concepción, Concepción, Chile 7Department of Geology, University of Chile, Santiago, Chile ABSTRACT. The first satellite-derived inventory of glaciers and rock glaciers in Chile, created from Landsat TM/ETM+ images spanning between 2000 and 2003 using a semi-automated procedure, is pre- sented in a single standardized format. Large glacierized areas in the Altiplano, Palena Province and the periphery of the Patagonian icefields are inventoried. The Chilean glacierized area is 23 708 ± 1185 km2, including ∼3200 km2 of both debris-covered glaciers and rock glaciers. -
Mapa Peligros Volcánicos Patagonia Verde
Conos de Parque Nacional A Puerto Varas 1353 74º 73º Cayutué Vicente Pérez Rosales 72º Volcán Conos V-69 Puerto Varas 2003 Calbuco Cabeza de vaca Volcán Cuernos 1823 Reserva Nacional del Diablo 5 Alerce Ralún 1944 Llanquihue 1639 1763 Cono Rio Leones 1826 La Viguería Cono Lago Vidal Gormaz Los Muermos 815 4 Rollizos 3 2 1720 1039 1494 V-69 6 1740 1747 Lago Chapo 1897 5 1841 1835 3 Puerto Montt 2044 748 2131 Río Cochamó 2012 Cochamó Paso 1 Río Manso 1458 Cono El León 7 1452 Pocoihuén 5 1470 1825 1882 1548 1 1652 5 Parque Nacional 7 1870 4 Alerce Andino V-69 1455 1638 Río Maullín Metri Río Chaica 1457 1658 Río Lenca Maullín Seno de Reloncaví 1318 Los 1719 Puelo 8 Canelos Caleta Yates La Arena 12 11 Tagua Tagua 2171 A Río Frío Valle 2 Lago El Frío V-69 2187 Caleta Fiordo de Reloncaví 6 Puelche Volcán 1743 1217 M Calbuco Yate 1806 Pargua B 9 1761 Río Puelo Contao 1966 La Poza M Chacao Lago Lago Río Traidor Volcán Cabrera Volcán General Pinto Apagado o Hornopirén Concha 5 Hualaihué 22 8 2186 Ancud Llanada 9 13 Aulén 1210 1572 1969 Grande 7 14 23 1954 2033 Parque Nacional Puerto Rolecha 10 Hornopirén 2128 Urrutia Lago Azul 15 2342 24 1955 16 1160 Isla Grande de Chiloé 21 Hornopirén2144 2334 2196 17 1161 Primer Lleguiman 2194 18 19 Corral 10 Lago Las Rocas 42º 20 Caleta Punta Hualaihué Manzano 2149 Río Ventisquero 1826 7 1385 2004 Segundo 2040 5 2309 Corral 2148 1358 Lago Inferior Llancahué 2030 Paso Cholgo 1914 Río Puelo Quemchi Zonas con alto peligro de ser afectadas por lahares y lavas, durante 11 B erupciones originales en el edificio principal y/o en áreas de los cráteres 26 adventicios. -
Petrography and Geochemistry of Quaternary Rocks from the Southern Volcanic Zone of the Andes Between 41 °30' and 46°00'S, Chile
Petrography and geochemistry of Quaternary rocks from the Southern Volcanic Zone of the Andes between 41 °30' and 46°00'S, Chile Leopoldo López-Escobar Departamenlo de Geologla, Universidad de Chile, Casilla 13518, Corre:> 21, Santiago, Chile Rolf Kilian Mineraloglsch-Pelrographisches Inslnul, Universlliil Tübinge" Wilhemslrasse 56, 0-7400 Tübingen 1, Germany Pamela D_ Kempton NERC isolope Geosciences Laboralory, Keyworth, Noningham, NG12 5GG, Unned Klngdom Michio Tagiri Departmenl 01 Earth Sciences, Ibaraki Universny, Mno 310, Japan ABSTRAeT Rocks from thirteen stratovolcanoes, belonging to the Quaternaryfrontofthe Southern Volcanic Zone :SVZ) of the Andes (41 "30'S-46"00'S) are mainly low- to medium-K basalts and basal tic andesites. Andesites and dacites are less abundant, and rhyolites are found only at Chaitén volcano. Pleistocene volcanic rocks range in composition from basalt to dacite, but Holocene volcanic rocks are predominantly basalts and basaltic andesites. In general, stratovolcano-basalts from the 41 "30'-46"00'S regio n of the SVZ are geochemically similar to stratovolcano-basalts from the 37"00'-41 "30'S region, but exhibit a wider ranga of Pb-isotope ratio s which is close to that ofvolcanic rocks from the 33-37°S region. In detail, two types of basalts, depleted (type-1) and enriched (type-2) in incompatible elements, are distinguished in this -egion of the SVZ. Compared to type-1 basalts, type-2 basalts have a lower degree of olivine zoning and higher FeO(l)/MgO, LalYb, and 87Sr/ 8"Sr ratios. In type-2 basalts, olivine rarely coexists with augite. Plagioclase phenocrysts in both type of basalts exhibit strong normal zoning, from Anu3 (cores) to Ans8 (rims).ln spite of being located in an area of presumably thin continental crust, the Chaitén rhyolites are geochemically similarto rhyolites from fu rther north (33-37"S) where the continental crust is thick, but are notably enriched in radiogenic Pb, particularly in 206Pb. -
Descriptive Stats Craterdiam 1162Records
This electronic thesis or dissertation has been downloaded from Explore Bristol Research, http://research-information.bristol.ac.uk Author: Ituarte, Lia S Title: Exploring differential erosion patterns using volcanic edifices as a proxy in South America General rights Access to the thesis is subject to the Creative Commons Attribution - NonCommercial-No Derivatives 4.0 International Public License. A copy of this may be found at https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode This license sets out your rights and the restrictions that apply to your access to the thesis so it is important you read this before proceeding. Take down policy Some pages of this thesis may have been removed for copyright restrictions prior to having it been deposited in Explore Bristol Research. However, if you have discovered material within the thesis that you consider to be unlawful e.g. breaches of copyright (either yours or that of a third party) or any other law, including but not limited to those relating to patent, trademark, confidentiality, data protection, obscenity, defamation, libel, then please contact [email protected] and include the following information in your message: •Your contact details •Bibliographic details for the item, including a URL •An outline nature of the complaint Your claim will be investigated and, where appropriate, the item in question will be removed from public view as soon as possible. ID Sample.ID Unit.sampled Unit.filter IAVCEI.ID Volcano.ID.Number Volcano.Name 130 -99 NP Volcano and eruption