Results 11 to 20 of about 241 (219)
Isotopic effects of nitrate photochemistry in snow: a field study at Dome C, Antarctica [PDF]
Atmospheric Chemistry and Physics, 2015 Stable isotope ratios of nitrate preserved in deep ice cores are expected to provide unique and valuable information regarding paleoatmospheric processes.
T. A. Berhanu +6 more
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Late Holocene multisource material input into the Aegean Sea: depositional and post-depositional processes [PDF]
Oceanologica Acta, 2003 The upper ~50 cm sediments in the deep-sea Aegean Sea were generally deposited through hemipelagic rain as indicated by paucity of terrigenous sand-sized particles, abundance of clay-sized materials and lack of turbiditic beds. However, quartz sand-sized grains, black debris, higher C org content and C/N ratio attest to a significant river-borne supply
Giresse, P +2 more
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Energy Geoscience, 2021 Carbonates undergo a variety of physical, mineralogical, chemical changes during depositional and post-depositional stages that are of interest to exploration geologists and sedimentologists.
Poon Xin Hui +4 more
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Indonesian Journal on Geoscience, 2018 DOI: 10.17014/ijog.5.2.179-197A geochemical study was carried out to determine the geochemical characteristics of limestone in Wonosari-Punung Formation, and to suggest its depositional conditions and the source of rare earth elements.
Didik Dwi Atmoko +2 more
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Nitrogen isotopes in bulk marine sediment: linking seafloor observations with subseafloor records [PDF]
Biogeosciences, 2013 The stable isotopes of nitrogen offer a unique perspective on changes in the nitrogen cycle, past and present. However, the presence of multiple forms of nitrogen in marine sediments can complicate the interpretation of bulk nitrogen isotope measurements.
J.-E. Tesdal +2 more
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Air mass origin and local impacts on Antarctic snow isotopic composition: an observation and modelling study [PDF]
The CryosphereWater stable isotopes (δ18O and δD) from ice cores are widely used to reconstruct past temperature variations through their well-established relationship with local air temperature, commonly referred to as “isotopic paleothermometer”.
A. Petteni +12 more
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Polish Polar Research, 2016 AbstractTextural properties and microstructures are commonly used properties in the analysis of Pleistocene and older glacial deposits. However, contemporary glacial deposits are seldom studied, particularly in the context of post-depositional changes.
Skolasińska Katarzyna +2 more
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Trampling Experiments – A Contribution to the Pseudo-Retouch Issue
EXARC Journal, 2020 Stone tools can, apart from human-made retouch, exhibit traces of damage due to post depositional processes. As a result of post depositional factors, whether animal, human or natural in origin, this damage can sometimes be interpreted as human-made ...
Katarina Šprem +2 more
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Nature Communications, 2023 Peatland vegetation takes up mercury (Hg) from the atmosphere, typically contributing to net production and export of neurotoxic methyl-Hg to downstream ecosystems. Chemical reduction processes can slow down methyl-Hg production by releasing Hg from peat
Chuxian Li +11 more
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Storm‐flood‐dominated delta succession in the Pleistocene Taiwan Strait
The Depositional Record, 2023 Storm‐flood‐dominated deltas are sedimentary systems in which a complex interplay of hydrodynamic processes occurs during storms (e.g. tropical cyclones) due to the coeval action of continental and oceanic processes.
Romain Vaucher +5 more
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