CHILE : Field Trip March, 9 - 14, 2009
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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. -
Explora Atacama І Hikes
ATACAMA explorations explora Atacama І Hikes T2 Reserva Tatio T4 Cornisas Nights of acclimatization Nights of acclimatization needed: 2 needed: 0 Type: Half day Type: Half day Duration: 1h Duration: 2h 30 min Distance: 2,3 km / 1,4 mi Distance: 6,7 kms / 4,2 mi Max. Altitude: 4.321 m.a.s.l / Max. Altitude: 2.710 m.a.s.l / HIKES 14.176 f.a.s.l 8.891 f.a.s.l Description: This exploration Description: Departing by van, we offers a different way of visiting head toward the Catarpe Valley Our hikes have been designed according the Tatio geysers, a geothermal by an old road. From there, we to different interests and levels of skill. field with over 80 boiling water hike along the ledges of La Sal They vary in length and difficulty so we sources. In this trip there are Mountains, with panoramic views always recommend travelers to talk to their excellent opportunities of studying of the oasis, the Atacama salt flat, guides before choosing an exploration. the highlands fauna, which includes and The, La Sal, and Domeyko Every evening, guides brief travelers vicuñas, flamingos and foxes, Mountains, three mountain ranges on the different explorations, so that among others. We walk through the that shape the region’s geography. they can choose one that best fit their reserve with views of The Mountains By the end of the exploration we interests. Exploration times do not consider and steaming hot water sources. descend through Marte Valley’s sand transportation. Return to the hotel by van. -
Indigenous Environmental Rights, Participation and Lithium Mining In
Indigenous Environmental Rights, Participation and Lithium Mining in Argentina and Bolivia: A Socio-Legal Analysis Helle Abelvik-Lawson A thesis submitted for the degree of PhD School of Law and Human Rights Centre and Interdisciplinary Studies Centre University of Essex Date of submission: May 2019 For my family, on Earth and in Heaven. i ACKNOWLEDGEMENTS First and foremost, I must thank my incredible husband-to-be Dauji Thomas, truly one of the world’s most amazing individuals, and without whom absolutely none of this would have been possible. Thank you for being there for me, and your understanding, through the hard times and the good. I am in fact wholly indebted to all my family, particularly my amazing Mama for showing me how to keep going even when the going is tough, and of course my stepdad Dean. Thanks also to Guy for giving me a wonderful place to study in the stunning Essex countryside. To my brother Frase, and Dix and Cos: I am so glad to have you all in my life. I am deeply grateful for the support of my dedicated, and encouraging and insightful supervisors, Professor Karen Hulme and Dr Jane Hindley, who went beyond the call of duty to help me achieve my aims. At Essex and elsewhere, I am incredibly fortunate to count a number of academics and experts in the field as mentors and friends, who continually pique my curiosities and inspire me to continue working in human rights. Dr Damien Short, Professor Colin Samson, Dr Corinne Lennox, Dr Julian Burger – thank you for showing me how it’s done. -
Hoyas Hidrográficas De Chile: Segunda Región
HOYAS HIDROGRÁFICAS DE CHILE: SEGUNDA REGIÓN REALIZADO POR: HANS NIEMEYER F. HOVA DEL RlO LOA La hoya hidrográfica del río Loa~ con una superf! cie tota~'de 33 570 km2 , se desarrolla en el tercio norte de la IIa R~ gión de Chile, entre latitudes extremas 20Q52' y 22Q57' L.S. ylongit~ des 68QOO' y 7oQ02' L.o. El río Loa nace en la falda norte del Vn. Mi ño~ en los Ojos del Hiño, casi en los límites entre la la y IIa Regio nes de Chile, en 21Q15' L.S. y 70Q L.O~ Su longitud total se acerca a 440 km. A pesar de su extensa hoya, los recursos h!dricos provienen de la cuenca alta que comprende alrededor del 20% de la su~ perficie total. Con curso aproximadamente norte-sur~ el Loa reco rre casi 150 km en un profundo cañón de altura variable, desde su nací miento hasta el oasis de Chiu ~hiu, pueblo que se levanta en su margen izquierda. En este trayecto recibe sus dos tributarios más importantes que le caen del este: el río San Pedro o Inacaliri y el río Salado. En Chiu Chiu dobla su curso sensiblemente hacia el oeste para alcanzar en un recorrido de 115 km el punto denominado Chacance. En él se le reúne por la derecha el río San Salvador. En Chacance,el Loa toma franca di= recci6n sur-norte hasta fertilizar el oasis de Quillagua, despu~s de una trayectoria de 80 km. A partir de Quillagua el Loa describe un gran arco y luego desemboca en el Pacífico~ en Caleta Huel~n, despu~8 de trasponer el macizo costero en un tajo profundo~ de más de 500 m de al tura. -
Application of PIXE to the Characterization of Vitreous Dacites from Archaeolgical Sites in the Atacama Region in Northern Chile
Available online at www.sciencedirect.com NIM B Beam Interactions with Materials & Atoms Nuclear Instruments and Methods in Physics Research B 264 (2007) 333–339 www.elsevier.com/locate/nimb Application of PIXE to the characterization of vitreous dacites from archaeolgical sites in the Atacama region in northern Chile J.R. Morales a, S. Cancino a, P. Miranda a,*, M.I. Dinator a, A. Seelenfreund b a Departamento de Fı´sica, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Nun˜oa, Santiago 1, Chile b Universidad Academia de Humanismo Cristiano, Condell 343, Providencia, Santiago, Chile Received 13 April 2007; received in revised form 17 August 2007 Available online 11 September 2007 Abstract Geochemical characterization studies using PIXE were carried out on 21 vitreous dacite artifacts from early formative archaeological sites in the Atacama region, in northern Chile, and on 13 samples taken from two potential volcanic sources located within the region. Performing statistical analyses it was possible to obtain elemental concentration patterns for the archaeological samples of this material and match some of these artifacts with the geological source samples. Ó 2007 Elsevier B.V. All rights reserved. PACS: 39.10.+j; 29.17.+w; 29.30.Kv Keywords: PIXE; Archaeology; Vitreous dacite; Atacama region; Chile 1. Introduction performed more systematically beginning in the early 1990s. Studies have been centered on obsidian analysis In northern Chile, since the work of Aldunate et al. and using mainly instrumental neutron activation analysis, others [1–4], the upper Salado river Basin, the main tribu- (INAA) or energy dispersive X-ray fluorescence, tary of the Loa River in the Atacama region, has been con- (EDXRF). -
Convergent Margin Magmatism in the Central Andes and Its Near Antipodes in Western Indonesia: Spatiotemporal and Geochemical Considerations
AN ABSTRACT OF THE DISSERTATION OF Morgan J. Salisbury for the degree of Doctor of Philosophy in Geology presented on June 3, 2011. Title: Convergent Margin Magmatism in the Central Andes and its Near Antipodes in Western Indonesia: Spatiotemporal and Geochemical Considerations Abstract approved: ________________________________________________________________________ Adam J.R. Kent This dissertation combines volcanological research of three convergent continental margins. Chapters 1 and 5 are general introductions and conclusions, respectively. Chapter 2 examines the spatiotemporal development of the Altiplano-Puna volcanic complex in the Lípez region of southwest Bolivia, a locus of a major Neogene ignimbrite flare- up, yet the least studied portion of the Altiplano-Puna volcanic complex of the Central Andes. New mapping and laser-fusion 40Ar/39Ar dating of sanidine and biotite from 56 locations, coupled with paleomagnetic data, refine the timing and volumes of ignimbrite emplacement in Bolivia and northern Chile to reveal that monotonous intermediate volcanism was prodigious and episodic throughout the complex. 40Ar/39Ar age determinations of 13 ignimbrites from northern Chile previously dated by the K-Ar method improve the overall temporal resolution of Altiplano-Puna volcanic complex development. Together with new and updated volume estimates, the new age determinations demonstrate a distinct onset of Altiplano-Puna volcanic complex ignimbrite volcanism with modest output rates beginning ~11 Ma, an episodic middle phase with the highest eruption rates between 8 and 3 Ma, followed by a general decline in volcanic output. The cyclic nature of individual caldera complexes and the spatiotemporal pattern of the volcanic field as a whole are consistent with both incremental construction of plutons as well as a composite Cordilleran batholith. -
South American Archæology; an Introduction to the Archæology Of
••••1 '( !f;i '". ")..<•/«'*'-< »/. ' " l|il'i " l iPi i>i UnwHHft lm 1 "l l W ll(8 . a» m CORNELL , UNIVElt'^'rY^ LIBRARY BOUGHT WITH THE INCOME OF THE SAGE ENDOWMENT FUND GIVEN IN 1891 ' BY HENRY WILLIAMS SAGE Date Due w 'm:T^^m^ nBssrrrmii ^m' Cornell University Library F 2229.J89 South American archaeology; »" i"'™,"!'"?''" 3 1924 020 446 989 Cornell University Library The original of tiiis book is in tine Cornell University Library. There are no known copyright restrictions in the United States on the use of the text. http://www.archive.org/details/cu31924020446989 SOUTH AMERICAN ARCHiE O LOGY TLATE I SOUTH AMERICAN ARCHAEOLOGY AN INTRODUCTION TO THE ARCHE- OLOGY OF THE SOUTH AMERICAN CONTINENT WITH SPECIAL REFERENCE TO THE EA^LY HISTORY OF PERU. BY THOMAS A^|OYCE, MA. WITH NUMEROUS ILLUSTRATIONS AND A MAP NEW YORK: G. P. PUTNAM'S SONS MDCCCCXII F A^>in.r4> PREFACE IT is not without great diffidence that I have ven- tured to compile the following chapters on the archaeology of South America. The subject is one of great magnitude, and the literature dealing with it is vast. Besides this, there exist so many gaps in our knowledge, gaps which can only be filled by years of patient excavation, that the formation of theories is still a precarious task. At the same time it is useful to pass in review the work which has already been completed, with the object both of pointing out the missing links in the chain of evidence, and of stimulat- ing further research by calling attention to the results already achieved. -
Trajectories of Violence: the Border Experiences of Peruvian Women Between Tacna (Peru) and Arica (Chile)*
Simbiótica, Vitória, v.7, n.3 (jul.-dez./2020) ISSN 2316-1620 Trajectories of violence: the border experiences of peruvian women between Tacna (Peru) and Arica (Chile)* Trayectorias de la violencia: Las experiencias fronterizas de mujeres peruanas entre Tacna (Perú) y Arica (Chile) Trajetórias de violência: as experiências fronteiriças de mulheres peruanas entre Tacna (Peru) e Arica (Chile) Recebido em 16-08-2019 Modificado em 06-11-2019 Aceito para publicação em 21-11-2019 https://doi.org/10.47456/simbitica.v7i3.33707 373 Menara Lube Guizardi ORCID: 0000-0003-2670-9360 Doutora em Antropologia Social. Pesquisadora Pós-doutoral do Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina) e pesquisadora associada da Universidad de Tarapacá (Chile). E-mail: [email protected] Eleonora López Contreras ORCID: 0000-0003-0820-7391 Mestre em Sociologia. Doutoranda do Programa de Pós-graduação em Sociologia da Pontificia Universidad Católica de Chile. E-mail: [email protected] Felipe Valdebenito ORCID: 0000-0002-3250-8808 Graduado em Antropologia. Doutorando do Programa de Pós-graduação em antropologia da Universidad Católica del Norte (Chile) em cotutela com a Universidade de Sorbonne (Francia). E-mail: [email protected] Esteban Nazal ORCID: 0000-0001-7172-7221 Mestre em sociologia. Professor do Departamento de Antropologia da Universidad Alberto Hurtado (Chile). E- mail: [email protected] * The authors thank the Chilean National Commission of Scientific and Technological Research which funded the study that gave rise to this paper through Project FONDECYT 11121177: “Gender conflict, labour insertion and migratory itineraries of Peruvian women in Chile: a comparative analysis between the regions of Arica- Parinacota, Tarapacá and Valparaiso”. -
Upper Crustal Differentiation Processes and Their Role in 238U-230Th
Journal of South American Earth Sciences 102 (2020) 102672 Contents lists available at ScienceDirect Journal of South American Earth Sciences journal homepage: www.elsevier.com/locate/jsames Upper crustal differentiation processes and their role in 238U-230Th disequilibria at the San Pedro-Linzor volcanic chain (Central Andes) T ∗ Benigno Godoya, , Lucy McGeeb,1, Osvaldo González-Maurelc,d, Inés Rodrígueze, Petrus le Rouxd, Diego Morataa, Andrew Menziesf a Centro de Excelencia en Geotermia de los Andes (CEGA) y Departamento de Geología, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Plaza Ercilla 803, Santiago, Chile b Department of Earth and Planetary Sciences, Macquarie University, Sydney, NSW, 2109, Australia c Departamento de Ciencias Geológicas, Universidad Católica del Norte, Avda. Angamos, 0610, Antofagasta, Chile d Department of Geological Sciences, University of Cape Town, Rondebosch, 7700, South Africa e Departamento de Obras Civiles y Geología, Facultad de Ingeniería, Universidad Católica de Temuco, Rudecindo Ortega, 02950, Chile f Bruker Nano GmbH, Am Studio 2D, Berlin 12489, Germany ARTICLE INFO ABSTRACT Keywords: U-series data are combined with major and trace element constraints to construct a detailed view of the mag- U-series disequilibria matic system feeding the San Pedro-Linzor volcanic chain, aiding the understanding of how stratovolcanoes in San Pedro – Linzor volcanic chain extremely thick arc crust evolve. Lavas from the Quaternary San Pedro-Linzor volcanic chain (Central Andes) 238 U excess 238 230 238 have ( U/ Th) ranging from 1.015 to 1.072, with U excess even in the less evolved (~57 wt% SiO2) Subduction zone magmatism analyzed lavas. Contrary to well-established trends between fluid mobile elements and 238U excess, Amphibole fractionation 238 230 ( U/ Th)0 shows no systematic correlation with ratios indicative of fluid-driven melting (e.g. -
Redalyc.Arquitectura De Remeseros En San Pedro De Atacama
ARQ ISSN: 0716-0852 [email protected] Pontificia Universidad Católica de Chile Chile Vilches, Flora; Sanhueza, Lorena; Garrido, Cristina Arquitectura de remeseros en San Pedro de Atacama ARQ, núm. 88, diciembre, 2014, pp. 76-85 Pontificia Universidad Católica de Chile Santiago, Chile Disponible en: http://www.redalyc.org/articulo.oa?id=37535373014 Cómo citar el artículo Número completo Sistema de Información Científica Más información del artículo Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Página de la revista en redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto ARQUiteCTUra de reMESeroS EN SaN Pedro DE AtaCAMA Flora VilCHES PROFESORA, DEPARTAMENTO DE ANTROPOLOGÍA, UNIVERSIDAD DE CHILE, SANTIAGO, CHILE. LORENA SaNHUEZA PROFESORA, DEPARTAMENTO DE ANTROPOLOGÍA, UNIVERSIDAD DE CHILE, SANTIAGO, CHILE. CriStiNA Garrido ANTROPÓLOGA, UNIVERSIDAD AUSTRAL DE CHILE, VALDIVIA, CHILE. FIG 1 n la actualidad, el pueblo de San Pedro de Siárez, poco sabemos del rol que esta ha jugado en los Mapa de los oasis de San Pedro EAtacama, ubicado en el norte grande de Chile, variados procesos sociales que acontecieron en los de Atacama indicando conjuntos es uno de los centros turísticos más importantes del oasis de San Pedro de Atacama y cómo las poblacio- habitacionales y complejos remeseros. Fuente: Dibujo realizado por Paulina país. Parte de su éxito como destino nacional e inter- nes locales se fueron relacionando con dichos proce- Chávez. nacional es que posee un patrimonio arqueológico sos para convertirse en lo que son hoy en día. Map of the San Pedro de Atacama oasis prehispánico importante en la zona que es recono- En este artículo1 agregamos una visión arqueológi- indicating housing complexes and ranching cido y explotado como tal. -
First Measurements of Gas Flux with a Low-Cost Smartphone Sensor-Based UV Camera on the Volcanoes of Northern Chile
remote sensing Article First Measurements of Gas Flux with a Low-Cost Smartphone Sensor-Based UV Camera on the Volcanoes of Northern Chile Felipe Aguilera 1,2,3,* , Susana Layana 1,3,4 , Felipe Rojas 1 , Pilar Arratia 1, Thomas C. Wilkes 5 , Cristóbal González 1,4 , Manuel Inostroza 1,4 , Andrew J.S. McGonigle 5 , Tom D. Pering 5 and Gabriel Ureta 1,3,4 1 Núcleo de Investigación en Riesgo Volcánico—Ckelar Volcanes, Universidad Católica del Norte, Avenida Angamos 0610, Antofagasta 1270709, Chile; [email protected] (S.L.); [email protected] (F.R.); [email protected] (P.A.); [email protected] (C.G.); [email protected] (M.I.); [email protected] (G.U.) 2 Departamento de Ciencias Geológicas, Universidad Católica del Norte, Avenida Angamos 0610, Antofagasta 1270709, Chile 3 Centro de Investigación para la Gestión Integrada del Riesgo de Desastres (CIGIDEN), Av. Vicuña Mackenna 4860, Santiago 7810000, Chile 4 Programa de Doctorado en Ciencias mención Geología, Universidad Católica del Norte, Avenida Angamos 0610, Antofagasta 1270709, Chile 5 Department of Geography, The University of Sheffield, Western Bank, Sheffield S10 2TN, UK; tcwilkes1@sheffield.ac.uk (T.C.W.); a.mcgonigle@sheffield.ac.uk (A.J.S.M.); t.pering@sheffield.ac.uk (T.D.P.) * Correspondence: [email protected] Received: 25 April 2020; Accepted: 29 June 2020; Published: 2 July 2020 Abstract: UV cameras have been used for over a decade in order to remotely sense SO2 emission rates from active volcanoes, and to thereby enhance our understanding of processes related to active and passive degassing. -
Geological Society of America Bulletin
Downloaded from gsabulletin.gsapubs.org on February 6, 2012 Geological Society of America Bulletin 40Ar/39Ar chronostratigraphy of Altiplano-Puna volcanic complex ignimbrites reveals the development of a major magmatic province Morgan J. Salisbury, Brian R. Jicha, Shanaka L. de Silva, Brad S. Singer, Néstor C. Jiménez and Michael H. Ort Geological Society of America Bulletin 2011;123, no. 5-6;821-840 doi: 10.1130/B30280.1 Email alerting services click www.gsapubs.org/cgi/alerts to receive free e-mail alerts when new articles cite this article Subscribe click www.gsapubs.org/subscriptions/ to subscribe to Geological Society of America Bulletin Permission request click http://www.geosociety.org/pubs/copyrt.htm#gsa to contact GSA Copyright not claimed on content prepared wholly by U.S. government employees within scope of their employment. Individual scientists are hereby granted permission, without fees or further requests to GSA, to use a single figure, a single table, and/or a brief paragraph of text in subsequent works and to make unlimited copies of items in GSA's journals for noncommercial use in classrooms to further education and science. This file may not be posted to any Web site, but authors may post the abstracts only of their articles on their own or their organization's Web site providing the posting includes a reference to the article's full citation. GSA provides this and other forums for the presentation of diverse opinions and positions by scientists worldwide, regardless of their race, citizenship, gender, religion, or political viewpoint. Opinions presented in this publication do not reflect official positions of the Society.