Virtual Heritage: a Model of Participatory Knowledge Construction Toward Biogeocultural Heritage Conservation
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Chilean Notes, 1962-1963
CHILEAN NOTES ' CHILEAN NOTES, 1962-1963 BY EVELIO ECHEVARRfA C. (Three illustrations: nos. 2I-23) HE mountaineering seasons of I 962 and I 963 have seen an increase in expeditionary activity beyond the well-trodden Central Andes of Chile. This activity is expected to increase in the next years, particularly in Bolivia and Patagonia. In the Central Andes, \vhere most of the mountaineering is concen trated, the following first ascents were reported for the summer months of I962: San Augusto, I2,o6o ft., by M. Acufia, R. Biehl; Champafiat, I3,I90 ft., by A. Diaz, A. Figueroa, G. and P. de Pablo; Camanchaca (no height given), by G. Fuchloger, R. Lamilla, C. Sepulveda; Los Equivo cados, I3,616 ft., by A. Ducci, E. Eglington; Puente Alto, I4,764 ft., by F. Roulies, H. Vasquez; unnamed, I4,935 ft., by R. Biehl, E. Hill, IVI. V ergara; and another unnamed peak, I 5,402 ft., by M. Acufia, R. Biehl. Besides the first ascent of the unofficially named peak U niversidad de Humboldt by the East German Expedition, previously reported by Mr. T. Crombie, there should be added to the credit of the same party the second ascent of Cerro Bello, I7,o6o ft. (K. Nickel, F. Rudolph, M. Zielinsky, and the Chilean J. Arevalo ), and also an attempt on the un climbed North-west face of Marmolejo, 20,0I3 ft., frustrated by adverse weather and technical conditions of the ice. In the same area two new routes were opened: Yeguas Heladas, I5,7I5 ft., direct by the southern glacier, by G. -
Sr–Pb Isotopes Signature of Lascar Volcano (Chile): Insight Into Contamination of Arc Magmas Ascending Through a Thick Continental Crust N
Sr–Pb isotopes signature of Lascar volcano (Chile): Insight into contamination of arc magmas ascending through a thick continental crust N. Sainlot, I. Vlastélic, F. Nauret, S. Moune, F. Aguilera To cite this version: N. Sainlot, I. Vlastélic, F. Nauret, S. Moune, F. Aguilera. Sr–Pb isotopes signature of Lascar volcano (Chile): Insight into contamination of arc magmas ascending through a thick continental crust. Journal of South American Earth Sciences, Elsevier, 2020, 101, pp.102599. 10.1016/j.jsames.2020.102599. hal-03004128 HAL Id: hal-03004128 https://hal.uca.fr/hal-03004128 Submitted on 13 Nov 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Copyright Manuscript File Sr-Pb isotopes signature of Lascar volcano (Chile): Insight into contamination of arc magmas ascending through a thick continental crust 1N. Sainlot, 1I. Vlastélic, 1F. Nauret, 1,2 S. Moune, 3,4,5 F. Aguilera 1 Université Clermont Auvergne, CNRS, IRD, OPGC, Laboratoire Magmas et Volcans, F-63000 Clermont-Ferrand, France 2 Observatoire volcanologique et sismologique de la Guadeloupe, Institut de Physique du Globe, Sorbonne Paris-Cité, CNRS UMR 7154, Université Paris Diderot, Paris, France 3 Núcleo de Investigación en Riesgo Volcánico - Ckelar Volcanes, Universidad Católica del Norte, Avenida Angamos 0610, Antofagasta, Chile 4 Departamento de Ciencias Geológicas, Universidad Católica del Norte, Avenida Angamos 0610, Antofagasta, Chile 5 Centro de Investigación para la Gestión Integrada del Riesgo de Desastres (CIGIDEN), Av. -
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. -
Seasonal Patterns of Atmospheric Mercury in Tropical South America As Inferred by a Continuous Total Gaseous Mercury Record at Chacaltaya Station (5240 M) in Bolivia
Atmos. Chem. Phys., 21, 3447–3472, 2021 https://doi.org/10.5194/acp-21-3447-2021 © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License. Seasonal patterns of atmospheric mercury in tropical South America as inferred by a continuous total gaseous mercury record at Chacaltaya station (5240 m) in Bolivia Alkuin Maximilian Koenig1, Olivier Magand1, Paolo Laj1, Marcos Andrade2,7, Isabel Moreno2, Fernando Velarde2, Grover Salvatierra2, René Gutierrez2, Luis Blacutt2, Diego Aliaga3, Thomas Reichler4, Karine Sellegri5, Olivier Laurent6, Michel Ramonet6, and Aurélien Dommergue1 1Institut des Géosciences de l’Environnement, Université Grenoble Alpes, CNRS, IRD, Grenoble INP, Grenoble, France 2Laboratorio de Física de la Atmósfera, Instituto de Investigaciones Físicas, Universidad Mayor de San Andrés, La Paz, Bolivia 3Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki, 00014, Finland 4Department of Atmospheric Sciences, University of Utah, Salt Lake City, UT 84112, USA 5Université Clermont Auvergne, CNRS, Laboratoire de Météorologie Physique, UMR 6016, Clermont-Ferrand, France 6Laboratoire des Sciences du Climat et de l’Environnement, LSCE-IPSL (CEA-CNRS-UVSQ), Université Paris-Saclay, Gif-sur-Yvette, France 7Department of Atmospheric and Oceanic Sciences, University of Maryland, College Park, MD 20742, USA Correspondence: Alkuin Maximilian Koenig ([email protected]) Received: 22 September 2020 – Discussion started: 28 October 2020 Revised: 20 January 2021 – Accepted: 21 January 2021 – Published: 5 March 2021 Abstract. High-quality atmospheric mercury (Hg) data are concentrations were linked to either westerly Altiplanic air rare for South America, especially for its tropical region. As a masses or those originating from the lowlands to the south- consequence, mercury dynamics are still highly uncertain in east of CHC. -
Evolution of Ice-Dammed Proglacial Lakes in Última Esperanza, Chile: Implications from the Late-Glacial R1 Eruption of Reclús Volcano, Andean Austral Volcanic Zone
Andean Geology 38 (1): 82-97. January, 2011 Andean Geology formerly Revista Geológica de Chile www.scielo.cl/andgeol.htm Evolution of ice-dammed proglacial lakes in Última Esperanza, Chile: implications from the late-glacial R1 eruption of Reclús volcano, Andean Austral Volcanic Zone Charles R. Stern1, Patricio I. Moreno2, Rodrigo Villa-Martínez3, Esteban A. Sagredo2, 4, Alfredo Prieto5, Rafael Labarca6* 1 Department of Geological Sciences, University of Colorado, Boulder, CO 80309-0399, USA. [email protected] 2 Depto. de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile. [email protected] 3 Centro de Estudios del Cuaternario (CEQUA), Av. Bulnes 01890, Punta Arenas, Chile. [email protected] 4 Department of Geology, University of Cincinnati, Cincinnati, OH 45221, USA. [email protected] 5 Centro de Estudios del Hombre Austral, Instituto de la Patagonia, Universidad de Magallanes, Casilla 113-D, Punta Arenas, Chile. [email protected] 6 Programa de Doctorado Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPBA), Argentina. [email protected] * Permanent address: Juan Moya 910, Ñuñoa, Santiago, Chile. ABsTracT. Newly described outcrops, excavations and sediment cores from the region of Última Esperanza, Magalla- nes, contain tephra derived from the large late-glacial explosive R1 eruption of the Reclús volcano in the Andean Austral Volcanic Zone. New radiocarbon dates associated to these deposits refine previous estimates of the age, to 14.9 cal kyrs BP (12,670±240 14C yrs BP), and volume, to >5 km3, of this tephra. The geographic and stratigraphic distribution of R1 also place constraints on the evolution of the ice-dammed proglacial lake that existed east of the cordillera in this area between the termination of the Last Glacial Maximum (LGM) and the Holocene. -
Processes Culminating in the 2015 Phreatic Explosion at Lascar Volcano, Chile, Evidenced by Multiparametric Data
Nat. Hazards Earth Syst. Sci., 20, 377–397, 2020 https://doi.org/10.5194/nhess-20-377-2020 © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License. Processes culminating in the 2015 phreatic explosion at Lascar volcano, Chile, evidenced by multiparametric data Ayleen Gaete1, Thomas R. Walter1, Stefan Bredemeyer1,2, Martin Zimmer1, Christian Kujawa1, Luis Franco Marin3, Juan San Martin4, and Claudia Bucarey Parra3 1GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany 2GEOMAR Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany 3Observatorio Volcanológico de Los Andes del Sur (OVDAS), Servicio Nacional de Geología y Minería (SERNAGEOMIN), Temuco, Chile 4Physics Science Department, Universidad de la Frontera, Casilla 54-D, Temuco, Chile Correspondence: Ayleen Gaete ([email protected]) Received: 13 June 2019 – Discussion started: 25 June 2019 Accepted: 5 December 2019 – Published: 4 February 2020 Abstract. Small steam-driven volcanic explosions are com- marole on the southern rim of the Lascar crater revealed a mon at volcanoes worldwide but are rarely documented or pronounced change in the trend of the relationship between monitored; therefore, these events still put residents and the CO2 mixing ratio and the gas outlet temperature; we tourists at risk every year. Steam-driven explosions also oc- speculate that this change was associated with the prior pre- cur frequently (once every 2–5 years on average) at Lascar cipitation event. An increased thermal anomaly inside the ac- volcano, Chile, where they are often spontaneous and lack tive crater as observed in Sentinel-2 images and drone over- any identifiable precursor activity. -
Persistent Uplift of the Lazufre Volcanic Complex (Central 10.1002/2014GC005370 Andes): New Insights from PCAIM Inversion of Insar Time
PUBLICATIONS Geochemistry, Geophysics, Geosystems RESEARCH ARTICLE Persistent uplift of the Lazufre volcanic complex (Central 10.1002/2014GC005370 Andes): New insights from PCAIM inversion of InSAR time Key Points: series and GPS data InSAR and GPS analysis using PCAIM D. Remy1, J. L. Froger2, H. Perfettini3, S. Bonvalot1, G. Gabalda1, F. Albino2,4, V. Cayol2, 5,6 1 Correspondence to: D. Legrand , and M. De Saint Blanquat D. Remy, 1 2 [email protected] GET/UMR 5563 (UPS, CNRS, IRD, CNES), Observatoire Midi-Pyren ees, Universite P. Sabatier, Toulouse, France, LMV/UMR 6524 (UBP-CNRS-IRD), Observatoire de Physique du Globe de Clermont-Ferrand, Universite B. Pascal, Clermont-Ferrand, France, 3ISTERRE/UMR 5275 (UJF, CNRS, IRD), Observatoire des Sciences de l’Univers de Grenoble, Universite Joseph Fou- Citation: 4 Remy, D., J. L. Froger, H. Perfettini, rier, Grenoble, France, Now at Department of Earth Sciences, Cartography & Remote Sensing Unit, Royal Museum for S. Bonvalot, G. Gabalda, F. Albino, Central Africa, Tervuren, Belgium, 5Departamento de Geofısica, Universidad de Chile, Santiago, Chile, 6Now at Instituto de V. Cayol, D. Legrand, and M. Saint Geofisica, Universidad Nacional Autonoma de Mexico, Coyoacan, Mexico Blanquat (2014), Persistent uplift of the Lazufre volcanic complex (Central Andes): New insights from PCAIM inversion of InSAR time series and GPS Abstract We reanalyzed the surface displacements observed at the Lazufre volcanic complex in the data, Geochem. Geophys. Geosyst., 15, Southern Andean Central Volcanic Zone using GPS measurements made between 2006 and 2008 and a doi:10.1002/2014GC005370. large InSAR data set. We performed a detailed spatiotemporal analysis of the displacements using a princi- pal component analysis inversion method (PCAIM). -
Indirect Tephra Volume Estimations Using Theorical Models for Some Chilean Historical Volcanic Eruptions with Sustained Columns J.E
Indirect tephra volume estimations using theorical models for some Chilean historical volcanic eruptions with sustained columns J.E. Romero*1,2 , J.G. Viramonte 3 & R. A. Scasso 4 (1) Universidad de Atacama, Departamento de Geología. Copayapu 485, Copiapó. (2) Proyecto Archivo Nacional de Volcanes, www.archivonacionaldevolcanes.cl (3) INENCO – GEONORTE Universidad Nacional de Salta-CONICET, Av. Bolivia 5150–4400, Salta , Argentina (4)IGeBA-CONICET, Universidad de Buenos Aires, Departamento de Ciencias Geológicas, Int. Guiraldes 2160, C1428EHA, Ciudad Universitaria, Pab. II, Buenos Aires, Argentina. * Presenting Author’s email: [email protected] Introduction During explosive volcanic eruptions, diverse pyroclastic products are discharged from an eruptive column. Those columns are divided into three zones; 1) a basal gas thrust one, 2) medial convective and 3) a top umbrella region (Sparks, 1986) as is indicated in figure 1a. In this last one, where the column is dispersed laterally and radially forming a dispersion cloud or volcanic plume, the column reaches an Ht region due its momentum (Fig.1a). There has been defined two types of eruptive columns in relation with the time between single explosions. If the time between explosions exceeds the time of ascension of a column until its Ht height, the column is thermal, and in the opposite case, if the ascension time is smaller than the separation between explosions, this column is sustained (Sparks, 1986; Carey and Bursik, 2000). A good agreement has been found in the prediction of column heights and field observations for the case of columns which extends higher than the tropopause (Settle, 1978; Wilson et al, 1978; Sparks and Wilson, 1982; Sparks, 1986). -
Tectonic Evolution of the Andes of Ecuador, Peru, Bolivia and Northern
CORDANI, LJ.G./ MILANI, E.J. I THOMAZ flLHO. A.ICAMPOS. D.A. TECTON IeEVOLUTION OF SOUTH AMERICA. P. 481·559 j RIO DE JANEIRO, 2000 TECTONIC EVOLUTION OF THE ANDES OF ECUADOR, PERU, BOLIVIA E. Jaillard, G. Herail, T. Monfret, E. Dfaz-Martfnez, P. Baby, A, Lavenu, and J.F. Dumont This chapterwasprepared underthe co-ordination chainisvery narrow. Thehighest average altitudeisreached ofE.[aillard. Together withG.Herail andT. Monfret,hewrote between 15°5 and 23°S, where the Altiplano ofBolivia and the Introduction. Enrique Dfaz-Martinez prepared the southernPerureaches anearly 4000 mofaverage elevation, section on the Pre-Andean evolution ofthe Central Andes. andcorresponds tothewidest partofthechain. TheAndean Again Iaillard, onthe Pre-orogenic evolution ofthe North Chain is usually highly asymmetric, witha steep western Central Andes. E.[aillard, P. Baby, G. Herail.A, Lavenu, and slope. and a large and complex eastern side. In Peru,the J.E Dumont wrote the texton theorogenic evolution of the distance between the trench and the hydrographic divide North-Central Andes, And, finally, [aillard dosed the variesfrom 240 to }OO km.whereas. the distancebetween manuscript with theconclusions. thehydrographic divide and the200m contourlineranges between 280 km(5°N) and about1000 kIn (Lima Transect, 8·S - 12°5). In northern Chile and Argentina (23·5),these distances become 300 krn and 500 km, respectively. Tn INTRODUCTION: southern Peru,as littleas 240 km separates the Coropuna THE PRESENT-DAY NORTH-CENTRAL Volcano (6425 m) from the Chile-Peru Trench (- 6865 m). This, together with the western location of the Andes ANDES (jON - 23°5) _ relative to theSouth American Con tinent,explains whythe riversflowing toward the Pacific Ocean do not exceed 300 TheAndean Chain isthemajormorphological feature of kmlong, whereas thoseflowing to theAtlantic Ocean reach theSouth American Continent. -
Refining the Late Quaternary Tephrochronology for Southern
Quaternary Science Reviews 218 (2019) 137e156 Contents lists available at ScienceDirect Quaternary Science Reviews journal homepage: www.elsevier.com/locate/quascirev Refining the Late Quaternary tephrochronology for southern South America using the Laguna Potrok Aike sedimentary record * Rebecca E. Smith a, , Victoria C. Smith a, Karen Fontijn b, c, A. Catalina Gebhardt d, Stefan Wastegård e, Bernd Zolitschka f, Christian Ohlendorf f, Charles Stern g, Christoph Mayr h, i a Research Laboratory for Archaeology and the History of Art, 1 South Parks Road, University of Oxford, OX1 3TG, UK b Department of Earth Sciences, University of Oxford, OX1 3AN, UK c Department of Geosciences, Environment and Society, Universite Libre de Bruxelles, Belgium d Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Alten Hafen 26, D-27568, Bremerhaven, Germany e Department of Physical Geography, Stockholm University, SE-10691 Stockholm, Sweden f University of Bremen, Institute of Geography, Geomorphology and Polar Research (GEOPOLAR), Celsiusstr. 2, D-28359, Bremen, Germany g Department of Geological Sciences, University of Colorado, Boulder, CO, 80309-0399, USA h Institute of Geography, Friedrich-Alexander-Universitat€ Erlangen-Nürnberg, Wetterkreuz 15, 91058 Erlangen, Germany i Department of Earth and Environmental Sciences & GeoBio-Center, Ludwig-Maximilians-Universitat€ München, Richard-Wagner-Str. 10, 80333 München, Germany article info abstract Article history: This paper presents a detailed record of volcanism extending back to ~80 kyr BP for southern South Received 12 March 2019 America using the sediments of Laguna Potrok Aike (ICDP expedition 5022; Potrok Aike Maar Lake Received in revised form Sediment Archive Drilling Project - PASADO). Our analysis of tephra includes the morphology of glass, the 29 May 2019 mineral componentry, the abundance of glass-shards, lithics and minerals, and the composition of glass- Accepted 2 June 2019 shards in relation to the stratigraphy. -
PLUTONS: Investigating the Relationship Between Pluton Growth and Volcanism in the Central Andes
Research Paper THEMED ISSUE: PLUTONS: Investigating the Relationship between Pluton Growth and Volcanism in the Central Andes GEOSPHERE Synthesis: PLUTONS: Investigating the relationship between pluton growth and volcanism in the Central Andes GEOSPHERE; v. 14, no. 3 M.E. Pritchard1,2, S.L. de Silva3, G. Michelfelder4, G. Zandt5, S.R. McNutt6, J. Gottsmann2, M.E. West7, J. Blundy2, D.H. Christensen7, N.J. Finnegan8, 9 2 10 11 7 12 2 13 2 6 doi:10.1130/GES01578.1 E. Minaya , R.S.J. Sparks , M. Sunagua , M.J. Unsworth , C. Alvizuri , M.J. Comeau , R. del Potro , D. Díaz , M. Diez , A. Farrell , S.T. Henderson1,14, J.A. Jay15, T. Lopez7, D. Legrand16, J.A. Naranjo17, H. McFarlin6, D. Muir18, J.P. Perkins19, Z. Spica20, A. Wilder21, and K.M. Ward22 1 10 figures; 3 tables Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853, USA 2School of Earth Sciences, University of Bristol, BS8 1RJ, United Kingdom 3College of Earth, Ocean, and Atmospheric Science, Oregon State University, Corvallis, Oregon 97331, USA CORRESPONDENCE: pritchard@ cornell .edu 4Department of Geography, Geology and Planning, Missouri State University, 901 S. National Ave, Springfield, Missouri 65897, USA 5Department of Geosciences, The University of Arizona, 1040 E. 4th Street, Tucson, Arizona 85721-0001, USA CITATION: Pritchard, M.E., de Silva, S.L., Michel‑ 6School of Geosciences, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, USA felder, G., Zandt, G., McNutt, S.R., Gottsmann, 7Geophysical Institute, University -
Holocene Peat and Lake Sediment Tephra Record from the Southernmost Chilean Andes (53-55°S)
Holocene peat and lake sediment tephra record from the southernmost Chilean Andes (53-55°S) Rolf Kilian Department of Geology, FB VI, University Trier, 54286 Trier, Germany [email protected] Miriam Hohner Department of Geology, University of Freiburg, Albertstr. 23B, 79140 Freiburg, Germany Harald Biester Institute of Environmental Geochemistry, University of Heidelberg, INF 236, 69120 Heidelberg, Germany Hans J. Wallrabe-Adams Marum, University of Bremen, Klagenfurter Straße, D-28359 Bremen, Germany Charles R. Stern Department of Geological Sciences, University of Colorado, Boulder, Colorado 80309-0399 U.S.A. ABSTRACT Peat and lake sediment cores from Peninsula Muñoz Gamero in the southernmost Main Andean Cordillera, and also Seno Skyring fjord and Peninsula Brunswick in the Andean foothills, have been investigated to refine the local Holocene tephrochronology. New 14C ages, together with calculated peat growth and sedimentation rates, provide age constraints. The thickest (5-15 cm) tephra layer in the cores resulted from an eruption of the Mount Burney volcano at approximately 4254±120 cal. years BP. Isopach maps for this eruption indicate deposition of approximately 2.5–3 km3 of tephra, mainly in the forested Andean area southeast of the volcano. Mount Burney had another large Plinian eruption between 9009±17 and 9175±111 cal. years BP, and also four smaller eruptions during the Holocene. Tephra from large explosive eruptions of the Reclus (>15384±578 cal. years BP), Hudson (between 7707±185 and 7795±131 cal. years BP) and Aguilera (<3596±230 cal. years BP) volcanoes also occur in some of the cores as indicated by the characteristic compositions of their tephra glass, which differ both from each other and also from that of tephra derived from Mount Burney.