Joseline Tapia

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Verified

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• PhD
• Professor (Associate) at Universidad Católica del Norte (Chile)

La contaminación por arsénico (As) ha recibido mucha atención globalmente debido a los efectos adversos que este metaloide produce en la salud humana. El norte de Chile tiene una larga historia de polución por As. Evidencias de ello son la presencia de este metaloide en el pelo de las momias de la cultura Chinchorro y las tasas actuales de cáncer d...

Cerro Overo maar (COM), located in the Central volcanic zone (CVZ) of the Andes, has an andesitic basaltic composition (∼55 wt% SiO2), which is uncommon in the magmas of the CVZ. Its morphology results from a phreatomagmatic eruption in one of the driest deserts in the world. A magnetotelluric study generated a three-dimensional resistivity model t...

Rivers play a crucial role in landscape evolution and human development, especially in arid zones, where hydrological resources are scarce and in high demand. The Atacama Desert is one of the world’s oldest and driest non-polar deserts, and aquatic systems therein have been historically subjected to anthropogenic pressure mainly associated with nat...

Ignimbrites are volcanic deposits, generally of felsic composition, which are widespread in the Andean Central Volcanic Zone (ACVZ). Massive ignimbrites displaying some of the highest concentrations of arsenic (As) have been found in the ACVZ and in the Altiplano-Puna plateau, a tectono-geomorphological feature linked to the ACVZ. To explore the el...

This study examines the trace element chemistry of fumarolic deposits and fumarolic plumes at Lastarria volcano, located in northern Chile. Fumarolic deposits were manually collected, while fumarolic plumes were sampled using the filter pack technique; after sample preparation, both sample types were analyzed by ICP-MS. The research focuses on chal...

Glosario de términos utilizados en estudios de geología ambiental principalmente en Chile.

Geogenic groundwater contaminants (GGCs) affect drinking-water availability and safety, with up to 60% of groundwater sources in some regions contaminated by more than recommended concentrations. As a result, an estimated 300-500 million people are at risk of severe health impacts and premature mortality. In this Review, we discuss the sources, occ...

In northern Chile, economic activities related to mining and thermoelectric energy have existed in the city of Tocopilla since the early 1900s and metal concentrations in soils have likely been altered by historic anthropogenic activities. To assess the concentrations of Cu, Zn, Pb, Ni, Co, and Cr in urban soils of Tocopilla, a total of 70 superfic...

Soil ecosystems are important reservoirs of biodiversity, as they are the most diverse habitat on Earth. Microbial biodiversity plays key roles in many ecosystem services, including the support to biogeochemical cycles. However, despite great advances in the understanding of the role of soil microbiota in providing benefits to nature and humankind,...

Diversas actividades industriales desarrolladas a lo largo de Chile, han dado lugar a lo que se conoce como zonas de sacrificio ambiental. Algunas zonas de sacrificio corresponden a Tocopilla, Mejillones en el norte del país, Huasco en el centro-norte, Ventanas en la zona central y Coronel en el centro-sur del país. Para comprender el comportamient...

Introducción La Laguna Inka Coya se localiza en la Precordillera de la Región de Antofagasta a aproximadamente 2520 m s.n.m. Tiene una superficie de 500 m2 y una profundidad máxima de 19 m. Entre sus principales características cabe destacar que es una laguna holomíctica, oligotrófica y alcalina [1]. La Laguna Inka Coya corresponde a una formación...

Chile se localiza en el borde sur-occidental de Sudamérica y presenta una gran distribución latitudinal. Debido a esta gran extensión, el país presenta: (i) diversos afloramientos geológicos, los que se relacionan en gran medida con los productos volcánicos emitidos por la Cordillera de Los Andes, (ii) diversidad metalogénica y los residuos de la e...

Volcanic rocks are a common, worldwide source of geogenic arsenic (As) that can affect water quality detrimentally. Nonetheless, variations of As concentration within different types of volcanic rocks and questions related to the original source of As in magma are not yet fully understood. We compiled published As data from the abundant Cenozoic vo...

Microbial community structures are shaped by geochemical factors and their interactions with the lithosphere, hydrosphere, and atmosphere through the processes of chemical mobilisation and mineralisation. High-altitude wetlands and salt flats in the central Andes are characterised by pronounced physicochemical gradients and extreme climatic conditi...

Globally, arsenic (As) contamination is widespread in hydrological systems and the link between As enrichment and regional tectonic and climatic factors is still not well understood in orogenic environments. This work provides new insights on the relationship between As, tectonics, and climate by assessing the hydrogeochemistry of Chile, an active...

Purpose The Altiplano-Puna is a distinctive plateau and pristine environment to study geochemical, ecological, and climatic phenomena. It is the second highest plateau on Earth after Tibet and contains the largest endorheic system of South America. Nevertheless, water is a vital resource in the region, and surface water and groundwater are essentia...

Arsenic (As) and antimony (Sb) are potentially hazardous metalloids and their presence in the environment is often related to mineral deposits, mines, and thermal springs. Despite their similar chemical properties, the distribution and behavior of As and Sb in nature has been shown to differ. In order to contribute to a better understanding of As a...

Despite the significant differences in regional geology and climate as a function of latitude in Chile, environmental regulations for arsenic (As) concentrations in water are based on a constant international value (WHO) and do not consider potentially high (natural) background values. Furthermore, there are no sediment and soil reference guideline...

• High elevation lakes are extreme ecosystems and serve as sentinels of various global changes. • An expedition to Volcán Llullaillaco in 1996 discovered an unstudied high‐elevation lake (6,170 m a.s.l.) that probably was formed as a result of the past eruptive events or climatic processes such as glacial retreat in the lake basin. • This article d...

The compilation of water, sediment, rock, and condensed gas data of arsenic (As) in the Altiplano-Puna of Chile reveals a link between its natural enrichment and volcanic activity, high crustal thicknesses, and regional structures. Two zones were studied which encompass the Altiplano-Puna and western lowlands of Chile: the Northern Zone (including...

Essential mineral nutrients are key elements for the development and production of grapevines. Under natural conditions most nutrients have a lithogenic origin, however, in agroecosystems their contents and distribution can be greatly altered by anthropogenic additions. To assess the origin and contribution of lithogenic and anthropogenic nutrient...

Essential mineral nutrients are key elements for the development and production of grapevines. Under natural conditions most nutrients have a lithogenic origin, however, in agroecosystems their contents and distribution can be greatly altered by anthropogenic additions. To assess the origin and contribution of lithogenic and anthropogenic nutrient...

Today (year 2020), the globally recognized problem of arsenic (As) contamination of water resources and other environments at toxic levels has been reported in all of the 20 Latin American countries. The present review indicates that As is prevalent in 200 areas across these countries. Arsenic is naturally released into the environment and mobilize...

Guallatiri (18°25’S, 69°05’W; 6073 m a.s.l.) is a giant and active stratovolcano located in northern Chile, near the Chile-Bolivia border. On the top and SW flank, it presents hundreds of fumarolic emissions. The summit area hosts a permanent glaciar cap that feeds the hydrothermal system of the volcano as well as cold/thermal springs emerging at t...

Due to water scarcity and naturally elevated As in waters of northern Chile, this study was undertaken to better understand the distribution and origin of As in surface water and sediments. Geologic, metallogenic, and climatic factors which might affect the geochemical distribution of As were also considered. The natural variability of As concentra...

In South America, the second highest plateau on Earth referred to as the “Altiplano-Puna”, which encompasses areas of Argentina, Bolivia, Chile, and Perú, exhibits high arsenic (As) concentrations in water that could be affecting 3 million inhabitants.

Mining in the Bolivian Altiplano is important and has historically provided much of the world’s Ag, Sn, and Sb. This study aims to better understand the effects of important recent increases in Bolivian mining on the deposition of metals and metalloids in sediment near Oruro, Bolivia’s fifth largest city, with special attention to natural and anthr...

Geothermal fluids and volcanic emissions are important sources of arsenic (As), resulting in elevated concentrations of As in ground-, surface-water and soil, which may adversely affect the environment. Arsenic originating from geothermal features and volcanic activities is common in Latin America forming a serious threat to the livelihoods of mill...

To assess environmental conditions along the coast of northern Chile, 457 sediment samples were collected between 22° S and 28° S in order to evaluate the Cu, Zn, Pb, Ni, V, Cd, As and Al content as well as its corresponding relationship to nearby anthropogenic activities. In general, the results of most metals showed that bays without industrial a...

Chile is located in the Southern Cone of South America; it has a high diversity of landscapes which have been considered by naturalists and scientists as an irreplaceable patrimony of nature. This country has more than 4000 kilometers of latitudinal extension, with deserts, agricultural valleys, large mineral deposits, ancient forests, relict and e...

From a geological standpoint, Chile hosts the largest copper resources in the world and is also the world’s largest producer of copper. In some cases, naturally high arsenic concentrations in Chile are associated with copper-rich deposits which have been mined for centuries. Naturally, copper in Chile is present mainly in the form of sulfides, oxid...

We address the question of whether all large‐magnitude earthquakes produce an erosion peak in the subaerial components of fluvial catchments. We evaluate the sediment flux response to the Maule earthquake in the Chilean Andes (Mw 8.8) using daily suspended sediment records from 31 river gauges. The catchments cover drainage areas of 350 to around 1...

Elevated concentrations of arsenic in water supplies represent a worldwide health concern. In at least 14 countries of South America, high levels have been detected relative to international standards and guidelines. Within these countries, the high plateau referred to as the “Altiplano-Puna”, encompassing areas of Argentina, Bolivia, Chile, and Pe...

A lo largo de la historia, la participación de las mujeres en la elaboración de ciencia no se ha desarrollado en la misma proporción o con el mismo reconocimiento que los hombres (Pérez, 2003). Luego de varias revoluciones sociales, la situación se ha visibilizado; sin embargo no deja de ser evidente la brecha de género que existe en la sociedad ac...

La región del Altiplano-Puna es una superficie de 5•10 5 km 2 localizada en el NW de Argentina, SW de Bolivia, NE de Chile y SE de Perú. Este plateau se extiende por 1800 km NS y 350-400 km EW a 3800 m s.n.m. (Allmendinger, 1986). El Altiplano corresponde a una superficie plana al norte de los 22°S; la Puna se localiza al sur de esa latitud y tiene...

El clima, geología, población y actividades antrópicas de Chile son muy variables de norte a sur. En el norte de Chile el clima es desértico, en tanto en el extremo sur se presenta tundra y clima polar (Köppen-Geiger, 1961, 2017). La población se distribuye mayormente en el centro del país y en el norte predomina la minería, en el centro agricultur...

Primer número de la revista Geohuellas: el medioambiente a través de la geología

The Atacama Desert, the driest of its kind on Earth, hosts a number of unique geological and geochemical features that make it unlike any other environment on the planet. Considering its location on the western border of South America, between 17 and 28 °S, its climate has been characterized as arid to hyperarid for at least the past 10 million yea...

Chile is the leading producer of copper worldwide and its richest mineral deposits are found in the Antofagasta Region of northern Chile. Mining activities have significantly increased income and employment in the region; however, there has been little assessment of the resulting environmental impacts to residents. The port of Antofagasta, located...

Tables as shown in the manuscript. Tables related to the Antofagasta dust, including: Dust sites, Methodologies, Statistics, Geoaccumulation index, Enrichment factor, Hazard index, Bioaccesibility and City dust.

Raw data. This table contains data of Antofagasta dust, rocks and weathering products of rocks of Antofagasta, and bioaccesibility of Antofagasta dust.

In Chile, the subject of geology has historically been significant mostly due to the presence of world-class mineral deposits and highly profitable mines. Considering variable trends in mining, academic institutions with geology programs in Chile were analyzed to provide an evaluation of their current state and projected development across the coun...

Long-established and widespread mining activities in the Northern Atacama Region of Chile have historically impacted the environment. Most notably, the Potrerillos and El Salvador mines, until 1976, were responsible for dumping over 150 ∙ 106 tons of tailings into the El Salado River, discharging directly into the bay of Chañaral on the coast. Wate...

The Northern Atacama Region hashistoricallybeen affected by mining activities since the beginning of the 20th century. In this area there are 4 hydrologic systems, 3 of which arein the Andes (Pedernales, Maricunga, Laguna Verde) and 1of which is onthe coast (El Salado).In particular, El Salado River has been impacted bymine tailing contamination fo...

The Los Pelambres porphyry copper deposit is located 190 km north of Santiago, Chile. A paleomagnetic and mineralogical study was conducted at this deposit to determine the effects of hydrothermal alteration on the magnetic properties and minerals of rocks within the deposit when compared to the surrounding country rock. In the Los Pelambres deposi...

Resumen. El norte de la Región de Atacama se localiza en una zona geológicamente rica en depósitos minerales de diverso tipo. Los depósitos de tipo pórfido cuprífero han sido los más explotados de este sector, donde Potrerillos (1926-1959) y posteriormente el Salvador (1959-hoy) corresponden a las minas históricamente explotadas. La actividad de am...

Este trabajo resume los resultados de un estudio que ha seguido el desarrollo del programa de geología en Chile desde el año 2012. En este estudio se comparan aranceles, matrículas, vacantes, convocados, puntajes, malla curricular, alumnos, académicos e infraestructura. Como conclusiones generales se determinó que las matrículas anuales tienen un i...

Este estudio presenta una compilación sobre la información geoquímica de suelos y sedimentos de 14 estudios realizados en Chile. Éstos se han enfocado en caracterizar las fuentes de contaminación (o enriquecimiento), para así estimar su carácter natural y/o antropogénico. Para este catastro se tomaron 3 elementos cobre, cinc y arsénico, los que han...

A combination of mineralogical (SEM–EDS, EMPA) and geochemical (redox dynamics, selective extractions) approaches was applied to mining- and smelting-impacted sediments from Lake Uru Uru and from the Cala Cala Lagoon, a non-impacted reference site, in the Bolivian Altiplano. The purpose was to assess the factors controlling the post-depositional re...

Oruro, located in the Bolivian Altiplano, has been subjected to intense mining and smelting activities since Colonial times (17th Century), yet the current geochemical composition of sediments and trace element behavior is practically unknown. A collection of 91 sediment samples retrieved from five sedimentary cores from Lake Uru Uru (Altiplano) an...

Oruro is located on the Bolivian Altiplano at 230 km south of La Paz. The main hydrological system in the Altiplano is endorheic and is constituted by Lake Titicaca-Desaguadero River-Lake Poopó-Coipasa Salar (TDPS) sub-basins. This area presents a dry (DS) and a wet season (WS). Despite the existence of a WS, precipitation is scarce, nevertheless,...