A5019388571- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- earthquake and tectonic studies
- Geological and Tectonic Studies in Latin America
- Geological and Geophysical Studies Worldwide
- Geology and Paleoclimatology Research
- High-pressure geophysics and materials
- Geochemistry and Elemental Analysis
- Radioactive element chemistry and processing
- Archaeological and Geological Studies
- Mineralogy and Gemology Studies
- Geological and Geophysical Studies
- Hepatitis B Virus Studies
- Geomagnetism and Paleomagnetism Studies
- Groundwater and Isotope Geochemistry
- Botany and Geology in Latin America and Caribbean
- Archaeological and Historical Studies
- Hepatitis C virus research
- Heavy metals in environment
- Hydrocarbon exploration and reservoir analysis
- Seismic Waves and Analysis
- Hydraulic Fracturing and Reservoir Analysis
- Photographic and Visual Arts
- Architecture and Art History Studies
- Surface and Thin Film Phenomena
Hôpital Tenon
2020
Sorbonne Université
2020
University of Chile
2003-2013
Universidad Católica del Norte
1975-1986
University of Atacama
1986
The results of research in the use Au grain morphological and compositional properties applied primary ore exploration are presented here. Two different independent topics discussed: (1) characteristics grains from active stream sediments for as a distance-to-source indicator; (2) signature various deposit types discrimination tool source type present erosion level determination. purpose this study is to improve integrate these two approaches an Andean covered areas. morphology over 1500...
Research Article| May 01, 2009 Formation of cristobalite nanofibers during explosive volcanic eruptions Martin Reich; Reich * 11Departamento de Geología, Universidad Chile, Plaza Ercilla 803, Santiago, Chile *E-mail: mreich@ing.uchile.cl. Search for other works by this author on: GSW Google Scholar Alejandro Zúñiga; Zúñiga 22Departamento Ingeniería Mecánica, Avenida Beauchef 850, Torre Central, Álvaro Amigo; Amigo 33Department Earth Sciences, University Bristol, Wills Memorial Building,...
The Murgul ore deposit belongs to the East Pontic metallogenetic province and is related a subvolcanic formation of an Upper Cretaceous island-arc volcanism. linked 250-m-thick felsic pyroclastic member Senonian age.The consists (1) widespread disseminated with varying Cu contents ranging from 0.2 0.7 percent, (2) stockworklike average between 1.0 2.5 (3) small lodes 5.0 10.0 percent.The mineralization spatially associated intense two-stage alteration host rock: initial stage phyllic...
ABSTRACT Supergene enrichment played a critical role in making northern Chile the most productive copper province of world. This occurred over long period from 45 to 9 Ma semi-arid climate. Subsequently, many deposits were covered by thick alluvial gravels, such that exploration is now focused on buried beneath these gravels. Well-defined saline+metal anomalies are present at gravel surface above deposits. Work, starting 1999, characterized and ascribed their origin pumping mineralized...
Edades y geoquimica de las rocas volcanicas del trasarco Mesozoico-Eoceno en la region Aysen los Andes patagonicos, Chile. Diez ocho nuevas edades radiometricas (catorce 40Ar-39Ar, cuatro K-Ar) junto con ya publicadas confirman existencia tres eventos volcanicos (previamente definidos por relaciones estratigraficas) Patagonia chilena (Region Aysen) durante el intervalo Mesozoico-Eoceno: Jurasico Medio-Cretacico temprano (160-130 Ma), Cretacico (114-75 Ma) Eoceno (55-46 Ma). Sobre base...
Abstract Quartz‐hosted melt inclusions from latite dykes of the Eocene El Salvador copper porphyry system in northern Chile display wide ranges both boron concentration (15–155 p.p.m. B) and isotope composition (δ 11 B −7 to +12‰; n = 10), likely reflecting slab‐derived fluid input seawater‐altered oceanic crust. In contrast, major Miocene tin‐silver tin systems Bolivian back‐arc region (Cerro Rico de Potosi, Chorolque, Llallagua) have distinctly different inclusion compositions with δ −11.4...
Although iodine is rare in crustal settings, previous studies have documented its occurrence the supergene zones of base and precious metal ore deposits arid environments. In this report, we present a novel application iodine-129 (129I) isotope tracer to iodine-rich samples from world’s largest Cu profile at Chuquicamata deposit northern Chile, where anomalous concentrations element been reported. All marshite (CuI) soil above Mansa Mina 129I/I ratios (~190�560 × 10�15) that are...
Abstract The Bransfield Strait, located between the South Shetland Islands and north-western end of Antarctic Peninsula, is a back-arc basin transitional rifting spreading. We compiled geomorphological structural map Basin combining published data interpretation bathymetric images. Several analogue experiments reproducing interaction Scotia, Antarctic, Phoenix plates were carried out. fault configuration observed in was well reproduced by one these models. results suggest establishment...