Article
Geosciences, Multidisciplinary
Semih Gursu, Serhat Koksal, Andreas Moeller, George D. Kamenov, M. Cemal Goncuoglu, Kevin Hefferan, Paul A. Mueller, Huseyin Kozlu
Summary: The detrital U-Pb age peaks and Lu-Hf systematics of peri-Gondwanan units in southern Turkey suggest their derivation from Neoproterozoic igneous suites in the Sinai Peninsula, Israel, and the Eastern Desert. These sediments were likely derived from sedimentary recycling processes in a continental back-arc tectonic setting. The provenance of the sediments correlates with nearby regions such as the Nubian Shield and Saharan Metacraton.
Article
Geosciences, Multidisciplinary
Jose A. Garcia, Munazzam A. Mahar, Philip C. Goodell, Castulo Molina, Jason W. Ricketts
Summary: In this study, whole-rock geochemistry, LA-ICP-MS zircon U-Pb ages, and Hf isotopic compositions were used to characterize subsurface lithologies in the northwestern corner of Mesa Central, Mexico. The results identified five distinct magmatic events with varying sources, suggesting changes in magma genesis over time.
Article
Geochemistry & Geophysics
Cristina Accotto, Antonio Azor, David Martinez Poyatos, Antonio Pedrera, Francisco Gonzalez Lodeiro
Summary: The Ossa-Morena Zone is a Gondwana-related terrane composed mainly of Cambrian rocks. U-Pb dating of zircon grains from 15 samples revealed the absence of a significant Stenian-early Tonian population in the Cambrian Ossa-Morena rocks, in contrast to the results from middle Ordovician-Lower Devonian rocks in the same area. This suggests a change in the paleogeographic/paleotectonic evolution of the Ossa-Morena Zone during the late Ediacaran-early Ordovician period, possibly involving an eastward displacement and a reorganization of drainage systems.
Article
Geochemistry & Geophysics
Peter D. Clift, Chris Mark, Anwar Alizai, Hawas Khan, M. Qasim Jan
Summary: This study used detrital zircon and rutile U-Pb dating to estimate sediment flux in the Nanga Parbat-Haramosh Massif (NPHM) of the Western Himalayan syntaxis. The results show that the sediment contribution from NPHM to the Indus River is relatively small compared to the total zircons reaching the Arabian Sea. The sediment productivity of NPHM is high but lower than the Namche Barwa-Gyala Peri Massif in the Eastern Himalayan syntaxis. The regional exhumation rates in NPHM are lower than previously estimated.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geology
L. A. Solari, J. J. Aranda-Gomez, A. Moreno-Arredondo, R. Maldonado
Summary: Cerro El Toro is a Pliocene scoria cone located in the Mesa Central region of Mexico. It has been found to have undergone a pulse of ultra-high temperature metamorphism, which is supported by the analysis of zircon crystals. These crystals indicate the presence of Cenozoic metasediments in the lower crust, possibly resulting from subduction of the Farallon plate and tectonic erosion. The similarity of xenolith zircon ages with modern sediments from the Central Mexico Pacific coast suggests a possible sediment source in a coastal stretch near Zihuatanejo.
INTERNATIONAL GEOLOGY REVIEW
(2023)
Article
Geology
Arlin B. Fonseca-Martinez, Alexander Iriondo, Scott E. K. Bennett, Fred W. McDowell, Carlos Ortega-Obregon
Summary: This study presents U-Pb zircon ages and Lu-Hf zircon isotope data for Cretaceous-Paleocene plutonic rocks in northwestern Mexico. The results show slower migration rates of the continental arc and the importance of Hf isotope characteristics in constraining the pre-Cretaceous basement configuration.
INTERNATIONAL GEOLOGY REVIEW
(2023)
Article
Geology
Marta Roige, David Gomez-Gras, Daniel F. Stockli, Antonio Teixell, Salvador Boya, Miquel Poyatos-More
Summary: This study investigates the provenance evolution of the clastic deposits in the Jaca basin in the southern Pyrenees from the mid Eocene to early Miocene. It reveals a shift in the source area from the Variscan to Cadomian signature. The integration of detrital zircon U/Pb data with sandstone petrography improves the resolution of the source-area shifts and the understanding of sediment recycling during foreland evolution.
SEDIMENTARY GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Minghong Peng, Deqin Ma, Jingchun Tian, Xiang Zhang, Jian Li
Summary: The changes in the geological environment during the Middle-Late Ordovician transition are studied through geochemical evidence. It is found that the Saergan Formation in NW China exhibited enrichment in major and trace elements compared to post-Archaean Australian Shale, suggesting an active continental margin tectonic environment. The Middle-Late Ordovician was a transitional period with semiarid climate and hypersaline anoxic marine conditions.
JOURNAL OF ASIAN EARTH SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Peng Gao, Limei Tang, Ling Chen
Summary: This study investigates the Ross Orogenic Belt in the Transantarctic Mountains of Antarctica. By analyzing the geochemical and geochronological data of the North Victoria Land Granite Harbour Intrusive complex, the impact of early Paleozoic magmatism on continental crust growth through accretionary orogenesis is revealed. The syenite shows characteristics of island-arc granite and was emplaced at approximately 471.8-477.3 Ma, resulting from the partial melting of the lithospheric mantle enriched with subduction slab fluids and subcontinental lithosphere. A tectonic-magmatic model involving alternating phases of extension and contraction in the overriding plate is proposed. The study concludes that the (post-orogenic) magmatism occurred during extension in the overriding plate at around 478-471 Ma.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Geology
Erica Rubino, Andrew Leier, Elizabeth J. Cassel, S. Bruce Archibald, Zachary Foster-Baril, David L. Barbeau
Summary: The Lower Eocene strata in the southern Canadian Cordillera hinterland were deposited in multiple compartmentalized basins in alluvial fan, fluvial, lacustrine, and paludal environments. Detrital zircons with ages around 50 Ma are interpreted to be derived from volcanic activity, while another population with ages between 145 and 200 Ma indicates different sediment sources and paleodrainages within the southern Canadian Cordillera.
SEDIMENTARY GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Muhammad Qasim, Kamran Tabassum, Lin Ding, Javed Iqbal Tanoli, Muhammad Awais, Upendra Baral
Summary: This study provides insights into the provenance of the Late Cretaceous Pab Formation in the Sulaiman fold-thrust belt, Pakistan, through sandstone petrography and U-Pb detrital zircon geochronology. The findings suggest that sediments during the Late Cretaceous time were mainly derived from the southern and central sources of the Indian Craton, possibly due to thermal doming of the Indian Plate over a mantle hotspot.
GEOLOGICAL JOURNAL
(2022)
Article
Geosciences, Multidisciplinary
Hugo K. H. Olierook, Christopher L. Kirkland, Milo Barham, Matthew L. Daggitt, Julie Hollis, Michael Hartnady
Summary: The study presents a technique to rapidly extract meaningful core model ages from core-rim mixtures, along with a Python-based program for easy application of this approach. The efficacy of the technique is demonstrated on a detrital sample from East Greenland, recovering dates of detrital cores from core-rim mixtures. Caution is advised against using this technique without checking the appropriateness of the underlying assumptions, and chemical means are provided for evaluating the assumptions.
Article
Geosciences, Multidisciplinary
Fengyu Sun, Gaoshe Cao
Summary: The origin of bauxite in the bauxite and clay deposits of Western Henan has attracted attention. X-ray diffraction and detrital zircon U-Pb dating analysis revealed that the bauxite mainly originated from the North Qinling Orogenic Belt's Caledonian intermediate-acidic granitic rocks, with possible contributions from metamorphic rocks within the same orogenic belt.
GEOLOGICAL JOURNAL
(2022)
Article
Geography, Physical
Ce Wang, David A. Foster, Ming Su, Yaping Lei, Letian Zeng, Heqi Cui
Summary: The sedimentary evolution in the northern South China Sea during the Holocene is influenced by climate change, sea level rise, and changes in surface circulation. The study reveals that the sediments in the head of the Shenhu submarine canyons primarily come from the Pearl River system and the drainage systems in Taiwan, with no representation from Hainan and Luzon. The study also highlights the reworking of ancient continental crust and the accretion of Cathaysia and Yangtze blocks during the evolution of the South China Craton.
GLOBAL AND PLANETARY CHANGE
(2023)
Article
Geosciences, Multidisciplinary
Marie Pierre Dabard, Alfredo Loi, Pamela Pavanetto, Mattia Alessio Meloni, Natalia Hauser, Massimo Matteini, Antonio Funedda
Summary: This study investigates the sedimentary source areas of the Armorican Massif using U-Pb LA-MC-ICP-MS geochronology on detrital zircons, whole-rock Sm-Nd, and zircon Lu-Hf isotope analysis. It reveals changes in sediment flux characteristics post-Cadomian orogenesis and differences in paleogeographic locations during the Lower Ordovician. The results suggest geological continuity between the Armorican Massif and neighboring massifs, and highlight the importance of accurate sediment provenance analysis for reconstructing paleogeographic affinities.
Article
Environmental Sciences
Christian B. Vega-Millan, Ana G. Devora-Figueroa, Jefferey L. Burgess, Paloma Beamer, Melissa Furlong, R. Clark Lantz, Diana Meza-Figueroa, Mary Kay O'Rourke, Leticia Garcia-Rico, Edna R. Meza-Escalante, Jose J. Balderas-Cortes, Maria M. Meza-Montenegro
Summary: This study found that the alteration of serum CC16 and MMP-9 levels in children may be associated with the toxic effects of arsenic exposure through drinking water. Increased levels of arsenic exposure were significantly correlated with decreased serum CC16 levels, increased serum MMP-9 levels, and increased risk of respiratory infections among children.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Geology
Alicia Sarmiento-Villagrana, Ricardo Vega-Granillo, Oscar Talavera-Mendoza, Joaquin Ruiz, Sergio Adrian Salgado-Souto
Summary: The Xolapa Complex in southern Mexico is connected to the Chortis Block of Central America and has experienced multiple geological events over different time periods. The structural data suggest a relationship between this connection and tectonic movements, revealing a complex history of crustal melting and deformation.
INTERNATIONAL GEOLOGY REVIEW
(2022)
Article
Environmental Sciences
Diana Meza-Figueroa, Martin Pedroza-Montero, Marcelino Barboza-Flores, Sofia Navarro-Espinoza, Rodolfo Ruiz-Torres, Agustin Robles-Morua, Francisco Romero, Benedetto Schiavo, Belem Gonzalez-Grijalva, Monica Acosta-Elias, Abraham Mendoza-Cordova
Summary: This study reveals the existence of inhalable zirconia in urban dust, likely due to the CeO2-ZrO2 phase separation in catalytic converters. The Ce-Zr content in road dust exceeds geogenic levels, showing a significant correlation with anthropic sources.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Multidisciplinary
Francisco Pedroza-Montero, Karla Santacruz-Gomez, Monica Acosta-Elias, Erika Silva-Campa, Diana Meza-Figueroa, Diego Soto-Puebla, Beatriz Castaneda, Efrain Urrutia-Banuelos, Osiris Alvarez-Bajo, Sofia Navarro-Espinoza, Raul Riera, Martin Pedroza-Montero
Summary: Fluorescent nanodiamonds have shown potential as nanothermometers due to their temperature-dependent fluorescence spectra, with the model predicting temperature based on zero phonon lines of NV0 and NV- color centers. These nanodiamonds, of sizes 35nm, 70nm, and 100nm, demonstrated a linear relationship of fluorescence intensity with temperature, with sensitivities ranging from 4.14% to 6.994% degrees C-1. The non-cytotoxic interaction with HeLa cells also suggests their potential use in measuring temperatures in nano and microcellular aqueous environments.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Ernesto Hernandez-Mendiola, Francisco Martin-Romero, Diana Meza-Figueroa, Berenice Hernandez-Cruz, L. Gerardo Martinez-Jardines, Violeta Espino-Ortega
Summary: The MD SA-ET area in Baja California Sur, Mexico has a history of intermittent mining activities for over 200 years. Studies have shown that waste from these activities has led to the dispersion of Pb, Cd, Zn, and As in soils, sediments, and groundwater. This study focuses on the environmental and human health risks in an arid environment where the population is exposed to abandoned mining waste. The findings suggest that while the total concentrations of As and Pb in urban soils and stream sediments are high, their geoavailability is low, indicating a low environmental risk. However, the bioaccessibility of As and Pb in these areas is high, posing potential risks to the residents.
ENVIRONMENTAL EARTH SCIENCES
(2022)
Article
Engineering, Environmental
Cynthia Faye Isley, Kara L. Fry, Xiaochi Liu, Gabriel Michael Filippelli, Jane A. Entwistle, Adam P. Martin, Melanie Kah, Diana Meza-Figueroa, John T. Shukle, Khadija Jabeen, Abimbola O. Famuyiwa, Liqin Wu, Neda Sharifi-Soltani, Israel N. Y. Doyi, Ariadne Argyraki, Kin Fai Ho, Chenyin Dong, Peggy Gunkel-Grillon, C. Marjorie Aelion, Mark Patrick Taylor
Summary: This study evaluated the concentrations of trace metals in indoor dust from homes in 35 countries and identified the main sources of these metals along with associated household characteristics. The findings suggest that factors such as home age, peeling paint, and garden access are important considerations for managing potential risks posed by indoor house dust, with chromium concentrations in indoor dust having the greatest health risk impact.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Geochemistry & Geophysics
Aide Tafoya-Hernandez, Oscar Talavera-Mendoza, Sergio Adrian Salgado-Souto, Joaquin Ruiz, Elias Hernandez-Castro, Jose Luis Rosas-Acevedo, Sergio Garcia-Ibanez, Jose Luis Aguirre-Noyola, Analine Berenice Vazquez-Bahena
Summary: The study evaluated the impact of tailings from the Huitzuco mining region in southern Mexico on urban soils and shallow groundwater. It found that tailings may not be the sole source of Hg, Sb, and other potentially toxic elements, and that neighboring rocks play a significant role in their concentrations.
APPLIED GEOCHEMISTRY
(2022)
Article
Geosciences, Multidisciplinary
Fredderick Arroyo-Diaz, Sergio Adrian Salgado-Souto, Rafael Del Rio-Salas, Oscar Talavera-Mendoza, Alejandro Ramirez-Guzman, Joaquin Ruiz, Alicia Sarmiento-Villagrana, Maria Guzman-Martinez
Summary: The concentration of potentially toxic elements (PTE) and the isotope compositions of spring water in a historical mining region in southern Mexico were analyzed. The study found that the concentration of PTE in the spring water was below the recommended values for human consumption, but some elements may have adverse health effects. The composition of the spring water was found to be genetically linked to the rocks and influenced by sulfide mineralization. This type of research is crucial for assessing the PTE contents and sources of spring water used for human consumption in developing countries.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2022)
Article
Engineering, Environmental
Benedetto Schiavo, Diana Meza-Figueroa, Efrain Vizuete-Jaramillo, Agustin Robles-Morua, Aracely Angulo-Molina, Pablo A. Reyes-Castro, Claudio Inguaggiato, Belem Gonzalez-Grijalva, Martin Pedroza-Montero
Summary: This research examines the connection between metals associated with oxidative stress (OS) in urban dust and public health. The study also investigates the impact of seasonal variations on the dust's oxidative potential (OP) and the occurrence of diseases affected by OS. The findings highlight the importance of studying dust as an environmental factor that may potentially increase oxidative stress.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Green & Sustainable Science & Technology
Efrain Vizuete-Jaramillo, Diana Meza-Figueroa, Pablo A. Reyes-Castro, Agustin Robles-Morua
Summary: The Getis-Ord G(i)* statistic clustering technique was used to create a hot spot exposure map of potentially toxic elements (PTEs) in urban dust samples in a semiarid city in northwest Mexico. The results of the sensitivity analysis showed that flood zones and pervious and impervious zones were the most influential variables. This study provides an effective tool for assessing environmental vulnerability in the region.
Article
Chemistry, Applied
Grecia Pavlovich-Cristopulos, Benedetto Schiavo, Francisco M. Romero, Ernesto Hernandez-Mendiola, Aracely Angulo-Molina, Diana Meza-Figueroa
Summary: This research characterized eleven commercial products advertised as clinoptilolite for human consumption, revealing the presence of toxic metals and essential elements. Some of the samples did not contain clinoptilolite but other minerals. Additionally, ingestion of these products may pose non-carcinogenic and cancer risks to consumers.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Green & Sustainable Science & Technology
Benedetto Schiavo, Ofelia Morton-Bermea, Thania Elizabeth Arredondo-Palacios, Diana Meza-Figueroa, Agustin Robles-Morua, Rocio Garcia-Martinez, Daisy Valera-Fernandez, Claudio Inguaggiato, Belem Gonzalez-Grijalva
Summary: This study analyzes the variation of gaseous pollutants during the pre-lockdown, lockdown, and unlock period in Monterrey using ground-based measurements. The results show a drastic decrease in measured contaminants during the lockdown period, except for O-3 which increased. Using satellite data, a NO2 reduction during lockdown was also observed. The findings suggest a link between air pollutants and economic activity, and can be utilized for future strategies to improve urban air quality.
Article
Environmental Sciences
Benedetto Schiavo, Diana Meza-Figueroa, Ofelia Morton-Bermea, Efrain Vizuete-Jaramillo, Agustin Robles-Morua
Summary: This study investigated the seasonal variation in the spatial distribution of mercury (Hg) in dust in an arid area. Dust samples were collected from schools during the pre- and post-monsoon period and analyzed for Hg concentration. The results showed high contamination of Hg in the northern area of the city, which is characterized by brickyard activities. A bull's eye pattern of Hg was observed during the dry season and was attributed to emissions from kiln brick production. The study also highlighted potential health concerns to children and adults.
ATMOSPHERIC POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Benedetto Schiavo, Ofelia Morton-Bermea, Diana Meza-Figueroa, Monica Acosta-Elias, Belem Gonzalez-Grijalva, Maria Aurora Armienta-Hernandez, Claudio Inguaggiato, Daisy Valera-Fernandez
Summary: This study investigated the particle size distribution of ashfall from Popocatepetl volcano in Mexico and the behavior of ash nanoparticles in contact with lung fluids. The results showed that most of the ash particles were submicrometric in size and exhibited aggregation and disaggregation processes when in contact with lung fluids.
Article
Environmental Sciences
Jesus Arturo Bracamonte-Teran, Diana Meza-Figueroa, Leticia Garcia-Rico, Benedetto Schiavo, Maria Mercedes Meza-Montenegro, Ana Isabel Valenzuela-Quintanar
Summary: This study examines the transport of metal- and pesticide-polluted dust in one of the agricultural areas in Northwestern Mexico. The results show significant differences in the distribution of metals between active and abandoned fields. Principal component analysis identifies two potential sources of metal contamination related to traffic and agricultural activities. The presence of banned pesticides in dust deposited on roofs confirms the atmospheric transport from the agricultural area. The study also indicates that dust emitted from agricultural fields can reach neighboring states in Mexico and the USA.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Geosciences, Multidisciplinary
David Dominguez-Santos, Daniel Valderrama, Ahmet Utku Yazgan
Summary: This document presents a study comparing the spectra of large-magnitude seismic records in Chile between 2012 and 2022 with the design spectra of NCh433 and D. S 61. The aim is to determine if Chile's seismic-resistant regulations are updated to the existing reality and propose new design spectra that better represent the seismic activity in Chile during the last decade.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Prabhu Palanisamy, Vivek Sivakumar, Priya Velusamy, Logesh Natarajan
Summary: Shoreline changes in the southern coast of Rio de Janeiro, Brazil, were analyzed from 1986 to 2018. The study found that both natural and human factors significantly impact shoreline changes. The findings provided important insights into predicting future shoreline positions and identifying vulnerable regions. Additionally, human activities were found to influence shoreline change models, emphasizing the need for effective management strategies to protect ecosystems and communities.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Irina Salgado Bernal, Periyasamy Sivalingam, Armando Martinez Sardina, Michel Manduca Artiles, Maria E. Carballo Valdes, John Pote
Summary: This study investigated the presence of 15 toxic metals in surface sediment in a tropical river ecosystem in Cuba. The results showed that the sediments had higher concentrations of four metals compared to Cuban norms. Various contamination indices were calculated, and correlations analysis revealed the main sources of contamination. The study provides important information for the management of the river and emphasizes the need for metal pollution control and monitoring.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Camila Morgan, Eduardo Morgado, Miguel-Angel Parada, Raimundo Brahm, Francisca Mallea-Lillo
Summary: Lanin volcano is a composite volcano in the Andes, which has erupted lava flows with different compositions. The volcano's magma reservoir contains a crystal mush, and the pre-eruptive conditions include temperature, pressure, and oxygen fugacity. Fractional crystallisation has led to the evolution of the magma with different compositions.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Benjamin Idini, Sergio Ruiz, Jean-Paul Ampuero, Felipe Leyton, Efrain Rivera
Summary: This study investigates the role of wedge integrity on the frequency content of strong ground motion produced by subduction earthquakes in Northern Chile. The results show that the frequency characteristics of seismic waves vary with hypocentral distance, indicating lateral variations in anelastic attenuation due to the heterogeneous tectonic structure.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2024)