A5008724304- Geology and Paleoclimatology Research
- Landslides and related hazards
- earthquake and tectonic studies
- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Methane Hydrates and Related Phenomena
- Geophysics and Gravity Measurements
- Geological Modeling and Analysis
- 3D Surveying and Cultural Heritage
- Hydrocarbon exploration and reservoir analysis
- Radiomics and Machine Learning in Medical Imaging
- Image Processing and 3D Reconstruction
- Geological formations and processes
- Marine Biology and Ecology Research
- Calcium Carbonate Crystallization and Inhibition
- Microbial Community Ecology and Physiology
- Paleontology and Stratigraphy of Fossils
- Geochemistry and Elemental Analysis
ETH Zurich
2021-2023
Universidad de Salamanca
2021
Geological Institute
2021
Continental margins play a fundamental role in the carbon cycle as primary oceanic locations of organic (OC) burial. However, gaps remain our understanding factors controlling distribution and preservation matter (OM) these heterogeneous dynamic systems. In particular, impact hydrodynamic processes on age, abundance, stable isotopic composition sedimentary OC is poorly constrained. Here, we characterize present bulk grain-size sediment fractions from seven continental margin settings. Our...
Continental margin sediments represent a major global sink of organic carbon (OC), and as such exert key control on Earth’s climate. Today, OC burial in marine mainly takes place under oxygen-rich water columns, where most is stabilized through intimate association with sediment grains biogenic minerals. In prior episodes past, when large parts the oceans were anoxic, mode sedimentary must have been very different, however. Present-day analogues indicate that surface accumulating low-oxygen...
Abstract. Alkenone signatures preserved in marine sedimentary records are considered one of the most robust paleothermometers available and often used as a proxy for paleoproductivity. However, important gaps remain regarding provenance fate alkenones, well their impact on derived environmental signals sediments. Here, we analyze abundance, distribution radiocarbon (14C) age alkenones bulk sediments corresponding grain-size fractions surficial from seven continental margin settings Pacific...
Abstract. Alluvial fan and terrace formation is traditionally interpreted as a fluvial system response to Quaternary climate oscillations under the backdrop of slow steady tectonic activity. However, several recent studies challenge this conventional wisdom, showing that such landforms can evolve rapidly geomorphic responds catastrophic stochastic events, like large-magnitude mass wasting. Here, we contribute topic through detailed field, geochronological, numerical modelling investigation...
Abstract. Alkenone signatures preserved in marine sedimentary records are considered one of the most robust paleothermometers available, and often used as a proxy for paleoproductivity. However, important gaps remain on provenance fate alkenones, their impact derived environmental signals sediments. Here, we analyze abundance, distribution, radiocarbon (14C) age alkenones bulk sediments corresponding grain-size fractions surficial from seven continental margin settings Pacific Atlantic...
<p>Since Ohkouchi et al. (2002) pioneering work, compound specific radiocarbon (<sup>14</sup>C) dating has been largely used to explore <sup>14</sup>C age discrepancies between co-deposited sedimentary components in a wide range of depositional settings. Older ages bulk organic carbon (OC) and alkenones relative planktonic foraminifera have mainly attributed lateral sediment transport processes by means matter (OM)-mineral...
Summary Organic matter (OM) in marine sediment is usually associated with mineral surfaces because it offers protection from degradation. As the amount of OM on a particle increases, so does its grain size, but density decreases. The reduced surface results high propensity for resuspension, therefore aggregate transport represents an efficient way to relocate offshore sites and depocentres continental slope. This process has significant effects reconstructing past environments as laterally...
Abstract. Alluvial fan and terrace formation is traditionally interpreted as related to Quaternary climate oscillations under the backdrop of slow steady tectonic activity. However, several recent studies challenge this conventional wisdom, showing that such landforms can evolve rapidly a geomorphic system responds catastrophic stochastic events, like large magnitude mass-wasting. Here, we contribute topic through detailed field geochronological investigation alluvial sequences in Klados...
different software programs are available.One of them is Dynamic Analysis 3D (DAN3D) presented by McDougall & Hungr (2004).In DAN3D, a frictional model defines material behaviour using the meshless