43-101 Technical Report Gilda Project Atacama Desert
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Telepresence-Enabled Exploration of The
! ! ! ! 2014 WORKSHOP TELEPRESENCE-ENABLED EXPLORATION OF THE !EASTERN PACIFIC OCEAN WHITE PAPER SUBMISSIONS ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! TABLE OF CONTENTS ! ! NORTHERN PACIFIC! Deep Hawaiian Slopes 7 Amy Baco-Taylor (Florida State University) USS Stickleback (SS-415) 9 Alexis Catsambis (Naval History and Heritage Command's Underwater Archaeology Branch) Sunken Battlefield of Midway 10 Alexis Catsambis (Naval History and Heritage Command's Underwater Archaeology Branch) Systematic Mapping of the California Continental Borderland from the Northern Channel Islands to Ensenada, Mexico 11 Jason Chaytor (USGS) Southern California Borderland 16 Marie-Helene Cormier (University of Rhode Island) Expanded Exploration of Approaches to Pearl Harbor and Seabed Impacts Off Oahu, Hawaii 20 James Delgado (NOAA ONMS Maritime Heritage Program) Gulf of the Farallones NMS Shipwrecks and Submerged Prehistoric Landscape 22 James Delgado (NOAA ONMS Maritime Heritage Program) USS Independence 24 James Delgado (NOAA ONMS Maritime Heritage Program) Battle of Midway Survey and Characterization of USS Yorktown 26 James Delgado (NOAA ONMS Maritime Heritage Program) Deep Oases: Seamounts and Food-Falls (Monterey Bay National Marine Sanctuary) 28 Andrew DeVogelaere (Monterey Bay National Marine Sanctuary) Lost Shipping Containers in the Deep: Trash, Time Capsules, Artificial Reefs, or Stepping Stones for Invasive Species? 31 Andrew DeVogelaere (Monterey Bay National Marine Sanctuary) Channel Islands Early Sites and Unmapped Wrecks 33 Lynn Dodd (University of Southern -
Mining and the Inca Road in the Prehistoric Atacama Desert, Chile
MINING AND THE INCA ROAD IN THE PREHISTORIC ATACAMA DESERT, CHILE by Francisco Javier Garrido Escobar Lic., Universidad de Chile, 2004 Submitted to the Graduate Faculty of the Kenneth P. Dietrich School of Arts and Sciences in partial fulfillment of the requirements for the degree of Doctor of Philosophy University of Pittsburgh 2015 UNIVERSITY OF PITTSBURGH DIETRICH SCHOOL OF ARTS AND SCIENCES This dissertation was presented by Francisco Javier Garrido Escobar It was defended on April 27, 2015 and approved by Elizabeth Arkush, Associate Professor, Department of Anthropology Robert D. Drennan, PhD, Distinguished Professor, Anthropology Bryan Hanks, Associate Professor, Department of Anthropology James B. Richardson III, Phd, Professor, Anthropology Mark B. Abbott, PhD, Associate Professor, Geology Dissertation Advisor: Marc P. Bermann, PhD, Associate Professor, Anthropology ii Copyright © by Francisco Javier Garrido Escobar 2015 iii MINING AND THE INCA ROAD IN THE PREHISTORIC ATACAMA DESERT, CHILE Francisco Javier Garrido Escobar, PhD. University of Pittsburgh, 2015 Traditionally, treatments of the Inca Empire have sought to document its deep economic and political impact on local populations in the Andes. There has been less study of how subject groups might have independently negotiated opportunistic economic responses to the Inca Empire. This research explores this issue through the investigation of the relationship between the Inca Road and a recently discovered, non-Inca system of mining camps, isolated deep in the Atacama Desert, northern Chile. Study of the development of these camps, and of their relationship with the Road aimed at addressing whether the Atacama Inca Road, served as a linear exchange nexus, or only as a highway servicing Inca imperial needs. -
The Early Andean Subduction System As an Analogue to Island Arcs: Evidence from Across-Arc Geochemical Variations in Northern Ch
The Early Andean subduction system as an analogue to island arcs: evidence from across-arc geochemical variations in northern Chile Pablo Rossel, Veronica Oliveros, Mihai N. Ducea, Reynaldo Charrier, Stéphane Scaillet, Leonardo Retamal, Oscar Figueroa To cite this version: Pablo Rossel, Veronica Oliveros, Mihai N. Ducea, Reynaldo Charrier, Stéphane Scaillet, et al.. The Early Andean subduction system as an analogue to island arcs: evidence from across-arc geochemical variations in northern Chile. Lithos, Elsevier, 2013, 179, pp.211-230. 10.1016/j.lithos.2013.08.014. insu-00857256 HAL Id: insu-00857256 https://hal-insu.archives-ouvertes.fr/insu-00857256 Submitted on 4 Sep 2013 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. !" The Early Andean subduction system as an analogue to island arcs: #" evidence from across-arc geochemical variations in northern Chile. $" %" Pablo Rossela, Verónica Oliverosa*, Mihai N. Duceab,e , Reynaldo Charrier c,d, Stéphane &" Scailletf, Leonardo Retamalg, Oscar Figueroaa. '" (" aDepartamento Ciencias de la Tierra, Universidad de Concepción, Casilla 160-C, Concepción, Chile. )" bDepartment of Geosciences, University of Arizona, Tucson, AZ 85721, USA *" cEscuela Ciencias de la Tierra, Universidad Andres Bello, Campus República, Santiago. -
Geometry of the Inverted Cretaceous Chañarcillo Basin Based on 2-D Gravity and field Data – an Approach to the Structure of the Western Central Andes of Northern Chile
Solid Earth, 6, 1259–1276, 2015 www.solid-earth.net/6/1259/2015/ doi:10.5194/se-6-1259-2015 © Author(s) 2015. CC Attribution 3.0 License. Geometry of the inverted Cretaceous Chañarcillo Basin based on 2-D gravity and field data – an approach to the structure of the western Central Andes of northern Chile F. Martínez1, A. Maksymowicz2, H. Ochoa1, and D. Díaz2 1Department of Geology, FCFM, University of Chile, Plaza Ercilla 803, Santiago, Chile 2Department of Geophysics, FCFM, University of Chile, Blanco Encalada 2002, Santiago, Chile Correspondence to: F. Martínez ([email protected]) Received: 14 July 2015 – Published in Solid Earth Discuss.: 17 August 2015 Revised: 6 November 2015 – Accepted: 16 November 2015 – Published: 3 December 2015 Abstract. This paper discusses an integrated approach that Aguirre-Urreta (1993) in the southern Central Andes. Its ori- provides new ideas about the structural geometry of the gin is related to the negative rollback subduction geodynamic NNE-striking, Cretaceous Chañarcillo Basin located along setting established along the western margin of South Amer- the eastern Coastal Cordillera in the western Central Andes ica over-riding plate during the Late Jurassic–Early Creta- of northern Chile (27–28◦ S). The results obtained from the ceous time, which was coeval with the Mesozoic break-up integration of two transverse (E–W) gravity profiles with pre- of the Pangea–Gondwana supercontinent. This tectonic sce- vious geological information show that the architecture of nario caused extension in the upper continental crust and this basin is defined by a large NNE–SSE-trending and east- contributed to the development of a NE–NW-trending mag- vergent anticline (“Tierra Amarilla Anticlinorium”), which matic arc with back-arc extensional basins on the eastern is related to the positive reactivation of a former Cretaceous side (Coira et al., 1982; Mpodozis and Ramos, 1990; Vira- normal fault (Elisa de Bordos Master Fault). -
Geochemical Baselines Based on Stream Waters: Applications to Environmental Studies
Geochemical baselines based on stream waters: applications to environmental studies, Central Chile as a case study A thesis submitted to Imperial College London for the degree of Doctor of Philosophy in the Faculty of Natural Sciences By Carmina Olivia Jorquera Zuniga July 2013 Centre for Environmental Policy Imperial College London GEOCHEMICAL BASELINES BASED ON STREAM WATERS CARMINA JORQUERA DECLARATION OF OWN WORK I declare that this thesis ‘Geochemical baselines based on stream waters: applications to environmental studies, Central Chile as a case study’ is entirely my own work and has not been submitted previously for any other degree. Any material that could be understood as the work of others, it is fully cited and referenced. Name of student (Please print): Carmina Jorquera Name of supervisor: Nikolaos Voulvoulis Name of co-supervisor: Jane Plant Name of external Anglo American Advisor: Christopher Oates COPYRIGHT DECLARATION The copyright of this thesis rests with the author and is made available under a Creative Commons Attribution-Non Commercial-No Derivatives licence. Researchers are free to copy, distribute or transmit the thesis on the condition that they attribute it, that they do not use it for commercial purposes and that they do not alter, transform or build upon it. For any reuse or redistribution, researchers must make clear to others the licence terms of this work. i | P a g e GEOCHEMICAL BASELINES BASED ON STREAM WATERS CARMINA JORQUERA This thesis is dedicated to my beloved family. ii | P a g e GEOCHEMICAL BASELINES BASED ON STREAM WATERS CARMINA JORQUERA ABSTRACT Increasing environmental regulation has resulted in mining companies monitoring levels of toxic trace elements in the environment. -
Geology of the Josemaría Porphyry Copper-Gold Deposit, Argentina: Formation, Exhumation, and Burial in Two Million Years
BULLETIN OF THE SOCIETY OF ECONOMIC GEOLOGISTS Vol. 114 May No. 3 Geology of the Josemaría Porphyry Copper-Gold Deposit, Argentina: Formation, Exhumation, and Burial in Two Million Years Richard H. Sillitoe,1 Fionnuala A.M. Devine,2 Martin I. Sanguinetti,3 and Richard M. Friedman4 1 27 West Hill Park, Highgate Village, London N6 6ND, England 2 178-6th Street, Atlin, British Columbia, Canada V0W 1A0 3 NGEx Resources Inc., Gorriti 4855, CABA, Buenos Aires, Argentina 4 Pacific Centre for Isotopic and Geochemical Research, University of British Columbia, 6339 Stores Road, Vancouver, British Columbia, Canada V6T 1Z4 Abstract The Josemaría porphyry copper-gold deposit is located in the Frontal Cordillera of San Juan Province, Argen- tina, near the present-day northern limit of the Chilean-Pampean flat-slab segment of the central Andes, and midway between the Maricunga and El Indio metallogenic belts. The deposit is centered on small, multiphase dacite porphyry intrusions that were emplaced at the contact between rhyolitic volcanic and tonalitic plu- tonic rocks of Late Permian to Triassic age. The earlier, more intensely quartz ± magnetite-veined porphyry phases and contiguous wall rocks display a telescoped sequence of alteration-mineralization zones, from shallow advanced argillic (mainly quartz-pyrophyllite) and underlying sericitic to deeper chlorite-sericite and minor remnant potassic. All the alteration types are mineralized, but the highest copper and gold grades are present as a low-arsenic, high-sulfidation assemblage in the quartz-pyrophyllite and sericitic zones. The outermost parts of the copper-gold zone are overlapped by a pronounced molybdenum-bearing annulus. New U-Pb zircon ages show that the deposit was formed at ~25 to 24.5 Ma, partially unroofed during contin- ued NNE-striking, high-angle reverse faulting, and then unconformably overlain by red-bed conglomerate and sandstone capped by andesitic and dacitic tuff and lava. -
El Peñón NI 43-101
NI 43-101 TECHNICAL REPORT EL PEÑÓN GOLD-SILVER MINE ANTOFAGASTA REGION, CHILE Qualified Persons: Sergio Castro, Registered Member CMC Marco Velásquez Corrales, Registered Member CMC Henry Marsden, P.Geo. Carlos Iturralde, P.Eng. Royal Bank Plaza, North Tower 200 Bay Street, Suite 2200 Effective Date: December 31, 2020 Toronto, Ontario M5J 2J3 Signature Date: March 25, 2021 SIGNA TURE PA GE Yamana Gold Inc. NI 43-101 TECHNICAL REPORT Royal Bank Plaza, North Tower 200 Bay Street, Suite 2200 EL PEÑÓN GOLD-SILVER MINE Toronto, ON, Canada ANTOFAGASTA REGION, CHILE M5J 2J3 Effective Date: December 31, 2020 Signature Date: March 25, 2021 Authors: [Signature] [Signature] Sergio Castro Marco Velásquez Corrales, Registered Member CMC Registered Member CMC Technical Services Manager, El Peñón Chief Resource Geologist, El Peñón Yamana Gold Inc. Yamana Gold Inc. [Signature] [Signature] Henry Marsden, P.Geo. Carlos Iturralde, P.Eng. Senior Vice President, Exploration Director, Tailings, Health, Safety & Yamana Gold Inc. Sustainable Development Yamana Gold Inc. Reviewer [Signature] Sébastien Bernier, P.Geo. Senior Director, Geology & Mineral Resources, Yamana Gold Inc. Technical Report El Peñón Mine, Chile TABLE OF CONTENTS SIGNATURE PAGE ................................................................................................................................. I TABLE OF CONTENTS .......................................................................................................................... II CAUTIONARY NOTE REGARDING FORWARD-LOOKING -
A Record of Inversion Tectonics in Northern Chile Andean Geology, Vol
Andean Geology ISSN: 0718-7092 [email protected] Servicio Nacional de Geología y Minería Chile Martínez, Fernando; Arriagada, César; Mpodozis, Constantino; Peña, Matías The Lautaro Basin: A record of inversion tectonics in northern Chile Andean Geology, vol. 39, núm. 2, mayo, 2012, pp. 258-278 Servicio Nacional de Geología y Minería Santiago, Chile Available in: http://www.redalyc.org/articulo.oa?id=173922887004 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 39 (2): 258-278. May, 2012 Andean Geology formerly Revista Geológica de Chile www.andeangeology.cl The Lautaro Basin: A record of inversion tectonics in northern Chile Fernando Martínez1, César Arriagada1, Constantino Mpodozis2, Matías Peña1 1 Departamento de Geología-Centro de Excelencia en Geotermia de Los Andes (CEGA-FONDAP), Universidad de Chile, Plaza Ercilla 803, Correo 21, Santiago, Chile. [email protected]; [email protected]; [email protected] 2 Antofagasta Minerals, Apoquindo 4001, piso 18, Santiago, Chile. [email protected] ABSTRACT. The Triassic and Jurassic tectonic history of northern Chile has been dominated by extension, although clear evidence about the nature and geometry of the extensional basins and subsequent inversion structures has been adequately illustrated in only a few cases. In this contribution we present a structural study of the Lautaro Basin located at the western edge of the Frontal Cordillera in the Atacama region of northern Chile. The Lautaro Basin is a Jurassic half-graben, filled by at least 2,600 m of marine deposits of the Lautaro Formation and developed on top of, at least 2,000 m of Triassic volcanic successions of the La Ternera Formation, also accumulated during an earlier period of extensional deformation. -
Tectonic Setting of Cretaceous Porphyry Copper Deposits of Northern Chile (28°-30° S) and Its Relations with Magmatic Evolution and Metallogeny
Andean Geology 47 (3): 469-507. September, 2020 Andean Geology doi: 10.5027/andgeoV47n3-3035 www.andeangeology.cl Tectonic setting of Cretaceous porphyry copper deposits of northern Chile (28°-30° S) and its relations with magmatic evolution and metallogeny *Christian Creixell1, Javier Fuentes2, Hessel Bierma2, Esteban Salazar1 1 Servicio Nacional de Geología y Minería, Av. Santa María 0104, Providencia, Santiago, Chile. [email protected]; [email protected] 2 Private Consultans. Augusto Leguía Norte 115, Santiago, Chile. [email protected]; [email protected] * Corresponding author: [email protected] ABSTRACT. Cretaceous porphyry copper deposits of northern Chile (28º-29º30’ S) are genetically related with dacitic to dioritic porphyries and they represent a still poorly-explored target for Cu resources. The porphyries correspond to stocks distributed into two separated discontinuous NS trending belts of different age. The location of these porphyries is generally adjacent to orogen-parallel major fault systems that extend along the studied segment and also have a marked temporal relationship with deformation events registered along these structures. A first episode of Cu-bearing porphyry emplacement took place between 116 and 104 Ma (Mina Unión or Frontera, Cachiyuyo, Punta Colorada, Dos Amigos, Tricolor porphyries). These Early Cretaceous dacite to diorite porphyries are spatially associated with the eastern segments of the Atacama Fault System, which records sinistral transpression that started at 121 Ma producing ground uplift, consequent denudation and exhumation of the Early Cretaceous magmatic arc. This resulted in a change from marine to continental deposition with an angular unconformity in the site of the back-arc basin after of eastward migration of the deformation around 112-110 Ma.