A5032842501- Geology and Paleoclimatology Research
- Geochemistry and Elemental Analysis
- Aeolian processes and effects
- Geological formations and processes
- Geological and Geochemical Analysis
- Geological and Tectonic Studies in Latin America
- Paleontology and Stratigraphy of Fossils
- Groundwater and Isotope Geochemistry
- Methane Hydrates and Related Phenomena
- Chemical and Environmental Engineering Research
- Archaeology and Natural History
- Water Quality and Pollution Assessment
- Heavy metals in environment
- Isotope Analysis in Ecology
- Astro and Planetary Science
- Geomagnetism and Paleomagnetism Studies
- Hydrocarbon exploration and reservoir analysis
- Coral and Marine Ecosystems Studies
- Marine Biology and Ecology Research
- Clay minerals and soil interactions
- Soil erosion and sediment transport
- Planetary Science and Exploration
- Hydrology and Sediment Transport Processes
- Coastal and Marine Dynamics
- Oceanographic and Atmospheric Processes
Universidad Nacional Autónoma de México
2015-2025
Universidad Autónoma de la Ciudad de México
2025
Institut de Ciències del Mar
2018-2025
Victoria University of Wellington
2001
Abstract The provenance of sands from the Manzanillo (MN) and El Carrizal (CAR) beach areas along Mexican Pacific coast (southern Mexico) was investigated based on their modal composition, mineralogy geochemical data. average quartz, feldspar lithic fragment (QFL) ratios revealed that proportion quartz is higher in CAR than MN sands. In comparison with MN, are enriched SiO 2 content /Al O 3 ratio indicating sediment recycling greatest for variation K O/Al Na O/K between specified a...
The weathering conditions, provenance, and tectonic setting of sands from the San Nicolás (SN) Carlos (SC) beaches along Gulf California, Mexico, have been studied using mineralogy, major element, trace element data. compositional similarity among 4 independent groups (each beach area consists 2 grain-size groups, i.e. medium- fine-grained sands) was tested statistically by application analysis variance at 99% confidence level to avoid misinterpretation. X-ray diffraction SEM-EDS data...
Abstract Collected from the southwestern Gulf of Mexico (GoM), marine piston Core RC10‐265 was used to reconstruct surface water masses, circulation and paleotemperature shifts at orbital scales over last ∼180 ka. The chronology constructed based on radiocarbon ages, planktonic foraminifera biostratigraphy stable oxygen isotopes (δ 18 O). ocean conditions were reconstructed assemblages. Applying a Q‐mode Factor Analysis, two scenarios characterized through seven species. (a) subtropical...
To unveil the relationship between reconstructed paleoclimatic and paleoceanographic changes based on geochemical proxies, we analyzed marine sediment Core RC10-265PC retrieved from Gulf of Mexico (GoM). The core spans interval Marine Isotope Stage (MIS)-6 to MIS-1 at a glacial interglacial scale resolution. We studied in biogenic constituents as proxies primary productivity those continental terrigenous contributions source micronutrients. were identified described by determining carbon...
A sedimentological, petrographic, and geochemical study of beach, dune, river sands was carried out along the northwestern Gulf Mexico. The main goal this work is to show how beach dune are controlled texturally, compositionally, chemically by nearby rivers for each location using a particle size analyser, polarized microscope, X-ray fluorescence ICP mass spectrometer obtain following: grain-size values from one (Carrizal River) similar in range their counterpart but not (Barra del Tordo)....
Different parent rocks, climate, and relief control the provenance of beach sands on coast Mexico. This is first paper to address problem in south‐eastern Mexico considering a homogeneous climate relative similarity parental rocks but different relief. Two coastal areas are confined this study: (a) Western Gulf Tehuantepec (WGT) (b) Eastern (EGT). The WGT probably controlled by denudation orthogneisses, Eocene–Miocene basaltic–andesites–dacites–rhyolites from Volcanic Belt Sierra Madre del...
Dune sands in southeastern Mexico are compositionally and geomorphologically controlled by fluvial input, eastward longshore currents, the intense winds traveling through Isthmus of Tehuantepec. Tehuano mainly responsible for remarkable dune sand entrapment circumscribed to exposure volcano‐sedimentary outcrops. Compositionally, dunes potentially influenced granite denudation, rocks, metamorphic units, Quaternary sediments besides alluvium. Mono‐ polycrystalline subangular angular quartz,...
A heavy mineral (HM) study and light rare earth elements (LREE HREE) analysis were performed in coastal inland dune sands, El Vizcaino Desert, Central Baja California Peninsula, Mexico. Our shows high abundances of hornblende apatite the suggesting a dominance granodiorites/intermediate plutonic rocks marine authigenic phosphorite sands. There is relationship between unstable minerals like hornblende, pyroxenes, sphene, (HREE) that suggests are potential carriers HREE fields. However, there...
A roundness analysis of quartz grains (n=54) from dunes San Luis Río Colorado (SLRC), El Pinacate (EP), Golfo de Santa Clara (GSC) and Puerto Peñasco (PP), Sonora, Mexico, was carried out in order to determine the provenance their relationship different types (monocrystalline with straight/undulose extinction, inclusions polycrystalline plutonic origin extinction).Aeolian transport wind selectiveness produces fine-grained moderately well sorted sands SLRC EP dune whereas medium sand sizes...