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Journal Article
Journal: GSA Bulletin
Published: 09 January 2025
GSA Bulletin (2025)
...Charles Lewis; Shanaka de Silva; Alejandro Cisneros de Leon; Dale Burns; Mattias Villarroel Volcanological and temporal development of the Chaxas Complex on the western edge of the Altiplano-Puna Volcanic Complex of northern Chile is reported here in full for the first time. The Chaxas Complex...
Journal Article
Published: 30 December 2024
American Mineralogist (2024)
...-rich variety of chrysocolla) and pseudomalachite [Cu 5 (PO 4 ) 2 (OH) 4 ] from two distinct supergene copper deposits from Atacama Desert of northern Chile. These minerals are the most common copper minerals found in the supergene deposits associated with copper porphyries from Atacama Desert. However...
Journal Article
Journal: Economic Geology
Published: 01 September 2024
Economic Geology (2024) 119 (6): 1289–1328.
... in the prolific middle Eocene to early Oligocene porphyry Cu belt of northern Chile ( Fig. 1A ). The Encuentro mine is currently producing copper from oxide ore and has a sulfide-dominated resource of 1,117 million metric tonnes (Mt) grading 0.44% Cu, 0.17 ppm Au, and 150 ppm Mo ( Antofagasta PLC, 2018 ). We...
FIGURES | View All (23)
Journal Article
Published: 24 March 2023
Bulletin of the Seismological Society of America (2023) 113 (3): 1013–1024.
...Sylvain Michel; Romain Jolivet; Jorge Jara; Chris Rollins ABSTRACT The northern Chile region of the Nazca subduction zone ruptured in an M w ∼ 8.5 – 9.0 earthquake in 1877, which induced a tsunami. The various magnitude estimates of this event are based on the evaluation of historical records...
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Journal Article
Published: 12 September 2022
Seismological Research Letters (2023) 94 (1): 100–112.
...Carlos Herrera; John F. Cassidy; Stan E. Dosso; Jan Dettmer; Efraín Rivera; Sergio Ruiz; Hannes Vasyura‐Bathke Abstract On 10 September, 2008, an M w 5.7 earthquake occurred under the Central Valley of northern Chile near the town of Pica at a depth of ∼33 km within the continental crust...
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Journal Article
Published: 10 August 2022
Seismological Research Letters (2022) 93 (6): 3337–3347.
... early warning system (EEWS) for northern Chile. From a seismological point of view, this area is considered to be one of the largest seismic gaps in Chile, where an M w ∼ 9.0 earthquake is expected in a region with a population of more than 1.4 million people. From an economical perspective, this region...
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Journal Article
Journal: Economic Geology
Published: 01 August 2022
Economic Geology (2022) 117 (5): 1043–1071.
... pluton exhumation rates along an ~730-km segment of the middle Eocene-early Oligocene metallogenic belt in northern Chile (17.8°–24.2°S). By combining zircon U-Pb geochronology with Al-in-hornblende geobarometry, we pinpoint the time and depth at which each pluton was emplaced and use the age...
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Journal Article
Journal: Economic Geology
Published: 01 June 2022
Economic Geology (2022) 117 (4): 943–960.
... are part of a “granitophile” signature analogous to that reported from IOCG systems elsewhere, notably in the Gawler craton, South Australia. Apart from some older IOCGs north of Taltal, the IOCG deposits in Northern Chile are considered to have been formed between ~125 and 110 Ma. Younger published dates...
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Journal Article
Published: 31 March 2022
Geochemistry: Exploration, Environment, Analysis (2022) 22 (2): geochem2021-056.
...C. W. F. Rissmann; M. I. Leybourne; C. Benn; J. A. Kidder; L. K. Pearson Abstract Groundwaters recovered from the Salar de Punta Negra and Monturaqui basins in the Atacama Desert of northern Chile exhibit distinctly different isotopic, major, trace, and porphyry copper elemental compositions...
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Journal Article
Journal: Economic Geology
Published: 01 January 2022
Economic Geology (2022) 117 (1): 25–55.
...Stephanie Lohmeier; Bernd Lehmann; Albrecht Schneider; Andrew Hodgkin; Raymond Burgess Abstract The El Volcán gold project (8.9 Moz Au @ 0.71 g/t Au) is located in the Maricunga gold belt in northern Chile, on the flank of the large Cenozoic Copiapó Volcanic Complex. Precious metal mineralization...
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Journal Article
Published: 26 February 2021
Journal of the Geological Society (2021) 178 (3): jgs2020-142.
... fault system (AFS), one of the best and most accessible examples of an exhumed major intra-arc fault system, runs for c. 1000 km through the Coastal Cordillera in northern Chile ( Fig. 1 ). The AFS is a sinistral strike-slip, trench-linked structure that formed as a result of slip partitioning during...
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Journal Article
Journal: Economic Geology
Published: 30 November 2020
Economic Geology (2021) 116 (1): 1–28.
... Ma) metallogenetic belt. The map also shows belts of other ages that have been recognized in the area (see Camus, 2003 ). Inset shows location of study area within northern Chile and South America. The Chuquicamata deposit has been exploited for over 100 years. The pit is 6 km long, 4 km wide...
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Journal Article
Published: 01 October 2020
Italian Journal of Geosciences (2020) 139 (3): 359–373.
... volcanic zones (NVZ, CVZ, SVZ and AVZ, respectively) of the Andean Range with (b) the location of the main active volcanoes and hydrothermal systems in CVZ. Geothermal exploration in the northern Chilean sector of CVZ started in the 1960s, in response to the increasing demand of Chile...
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Journal Article
Journal: Economic Geology
Published: 01 June 2020
Economic Geology (2020) 115 (4): 749–770.
...Michael J. Baker; Jamie J. Wilkinson; Clara C. Wilkinson; David R. Cooke; Tim Ireland Abstract The Collahuasi district of northern Chile hosts several late Eocene-early Oligocene world-class porphyry Cu-Mo deposits, including Rosario, Ujina, and Quebrada Blanca deposits, and associated high...
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Journal Article
Published: 24 May 2019
Geochemistry: Exploration, Environment, Analysis (2019) 19 (4): 487–500.
... the Atacama and Domeyko fault systems within the southern extent of the Central Depression of northern Chile ( Bissig & Riquelme 2010 ). The porphyry is part of the Late Cretaceous porphyry copper belt ( Maksaev et al . 2010 ), including the Inca de Oro mine located 25 km NNE of the Atlántida deposit...
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Journal Article
Published: 24 May 2019
Geochemistry: Exploration, Environment, Analysis (2019) 19 (4): 474–486.
... with other techniques such as alteration mapping and geophysical techniques. Fig. 1. Map of northern Chile showing that large areas of the country are covered by gravels. Outcrop in grey and alluvial/colluvial cover in white. Black circles indicate study areas: 1, Atlántida; 2, Papas; 3, Mastodonte; 4...
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Series: Society of Economic Geologists Guidebook Series
Published: 01 January 2019
EISBN: 978-1-629494-97-5
... Over the course of a week, participants of this student field trip visited several epithermal and porphyry precious metal deposits in the Maricunga belt and copper-silver IOCG and manto deposits in northern Chile, with visits to active open-pit and underground operations, including Punta del...
Series: Society of Economic Geologists Guidebook Series
Published: 01 January 2019
DOI: 10.5382/GB.60
EISBN: 978-1-629494-97-5
Journal Article
Journal: GSA Bulletin
Published: 12 September 2018
GSA Bulletin (2019) 131 (1-2): 155–174.
... situation of natural resources. In this study, we developed a sediment-thickness distribution model for the Pampa del Tamarugal basin (between 20°20′S and 21°30′S, northern Chile), from surface geological information, available wells, and interpretation and depth conversion of 14 seismic-reflection profiles...
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Journal Article
Published: 10 August 2018
Journal of the Geological Society (2018) 175 (6): 883–902.
.... The approximate location of the studied sections and the position of the Neuquén Basin are shown (figure modified from Jensen et al. 1976 ; Vicente 2005 ; Naipauer et al. 2015 ). ( c ) Geological map of the studied area (after SERNAGEOMIN 2003 ) and location of the studied sections in northern Chile...
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