A5091627893- Geology and Paleoclimatology Research
- Arctic and Antarctic ice dynamics
- Methane Hydrates and Related Phenomena
- Atmospheric and Environmental Gas Dynamics
- Cryospheric studies and observations
- Hydrocarbon exploration and reservoir analysis
- Isotope Analysis in Ecology
- Diatoms and Algae Research
- Marine Biology and Ecology Research
- Marine and environmental studies
- Geological formations and processes
- Marine and coastal ecosystems
- Polar Research and Ecology
- Offshore Engineering and Technologies
- Literary and Cultural Studies
- earthquake and tectonic studies
- Microbial Community Ecology and Physiology
- Environmental Science and Water Management
- Maritime Navigation and Safety
- Industrial Gas Emission Control
- Climate change and permafrost
- Evolution and Paleontology Studies
- Geological and Geophysical Studies
- Migration, Education, Indigenous Social Dynamics
- Pleistocene-Era Hominins and Archaeology
Center for Dynamic Research on High Latitude Marine Ecosystems
2018-2024
Austral University of Chile
2018-2023
University of Concepción
2009-2022
Abstract. In the last decades, changing climate conditions have had a severe impact on sea ice at western Antarctic Peninsula (WAP), an area rapidly transforming under global warming. To study development of spring and environmental in pre-satellite era we investigated three short marine sediment cores for their biomarker inventory with particular focus proxy IPSO25 micropaleontological proxies. The core sites are located Bransfield Strait shelf to deep basin areas characterized by complex...
Abstract. The reconstruction of past sea-ice distribution in the Southern Ocean is crucial for an improved understanding ice–ocean–atmosphere feedbacks and evaluation Earth system Antarctic ice sheet models. Peninsula (AP) has been experiencing a warming since start regular monitoring atmospheric temperature 1950s. associated decrease cover contrasts trend growing extent East Antarctica. To reveal long-term history at northern (NAP) under changing climate conditions, we examined marine...
Abstract. The aim of this project was to establish past variations in the main oceanographic and climatic features a transitional semiarid ecosystem on north-central Chilean coast. We analyzed recent sedimentary records retrieved from two bays, Guanaqueros Tongoy (30∘ S), for geochemical biological analyses, including following: sensitive redox trace elements, biogenic opal, total organic carbon (TOC), diatoms stable isotopes nitrogen. Three remarkable periods were established with different...
The coast of Chile has been exposed to marine submersion events from storm surges, tsunamis and flooding due heavy rains. We present evidence these using sedimentary records that cover the last 1000 years in Pachingo wetland. Two sediment cores were analyzed for granulometry, XRF, pollen, diatoms TOC. Three extreme produced by three pluvial during El Niño episodes identified. Geochronology was determined a conventional dating method 14C, 210Pbxs 137Cs). older event (E1) heavier, identified...
Abstract. This study aims at establishing past variations of the main oceanographic and climatic features in Central Chilean coast, using recent sedimentary records a transitional semi-arid ecosystem susceptible to environmental forcing conditions. Coquimbo (30° S) region is characterized by dry summers short rainfall periods during winter. The relatively wet-winter climate results from interactions between southern westerly winds South Pacific Anticyclone (SPA); summer, SPA moves southwards...
Abstract. In the last decades, changing climate conditions have had a severe impact on sea ice at Western Antarctic Peninsula (WAP), an area rapidly transforming under global warming. To study development of spring and environmental in pre-satellite era we investigated three short marine sediment cores for their biomarker inventory with particular focus proxy IPSO25 micropaleontological proxies. The core sites Bransfield Strait are located shelf to deep basin areas characterized by complex...
Here we are shown the ages estimated based on 210 Pb xs inventories (no supported) according CRS model (Appleby and Oldfield, 1978) main diatom species sedimentary records.
<p>Recent changes and variability in climate conditions leave a significant footprint on the distribution properties of sea ice, as it is sensitive to environmental variations. We investigate rapidly transforming region Western Antarctic Peninsula (WAP) focusing development ice pre-satellite era. For this study past cover we apply novel proxy IPSO<sub>25</sub> (Ice Proxy for Southern Ocean with 25 carbon atoms; Belt et al., 2016). Three sampling...
Supplementary figures S1: Excess 210 Pb activity from the sediment cores with depth in dpm (disintegration per minute) gram error bars (1 σ).5 S2: The resolution of ocean model AWI-ESM2.
Abstract. The reconstruction of past sea ice distribution in the Southern Ocean is crucial for an improved understanding ice-ocean-atmosphere feedbacks and evaluation Earth system Antarctic sheet models. Western Peninsula (WAP) experiencing rapid warming associated decrease cover contrasts trend growing extent eastern Antarctica. To reveal long-term history at WAP under changing climate conditions we examined a marine sediment core from basin Bransfield Strait covering last Deglacial...
<p>Our understanding of glacial isostatic rebound across Patagonia is highly limited, despite its importance to constrain past ice volume estimates and better comprehend relative sea-level variations. With this in mind, our research objective reconstruct the magnitude rate Late Glacial Holocene adjustment near center former Patagonian Ice Sheet. We focus on Larenas Bay (48°S; 1.26 km<sup>2</sup>), which connected Baker Channel through a...