Results 1 to 10 of about 3,146 (170)
Frontiers in Earth Science, 2021 Cryogenic weathering is a key driver of periglacial sediment composition and properties. Selective mineral-grain weathering caused by freeze-thaw cycles in permafrost environments has the ability to dominate this process, leading to silt-rich grain-size ...
Denis Shmelev +5 more
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Post-Depositional Biodegradation Processes of Pollutants on Glacier Surfaces [PDF]
Condensed Matter, 2018 Glaciers are important fresh-water reservoirs for our planet. Although they are often located at high elevations or in remote areas, glacial ecosystems are not pristine, as many pollutants can undergo long-range atmospheric transport and be deposited on glacier surface, where they can be stored for long periods of time, and then be released into the ...
Pittino, F +6 more
openaire +3 more sources
Deep ice as a geochemical reactor: insights from iron speciation and mineralogy of dust in the Talos Dome ice core (East Antarctica) [PDF]
The Cryosphere, 2021 Thanks to its insolubility, mineral dust is considered a stable proxy in polar ice cores. With this study we show that the Talos Dome ice core (TALDICE, Ross Sea sector of East Antarctica) displays evident and progressive signs of post-depositional ...
G. Baccolo +15 more
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Seasonality of isotopic and chemical composition of snowpack in the vicinity of Jang Bogo Station, East Antarctica [PDF]
Polish Polar Research, 2021 Seasonal variations of the isotopic and chemical compositions of snowpits can provide useful tools for dating the age of the snowpit and examining the sources of aerosol.
Soon Do Hur +3 more
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A note on handaxe knapping products and their breakage taphonomy: an experimental view
Journal of Lithic Studies, 2015 The notion that broken artifacts provide a good indication of the taphonomic history of lithic assemblages is commonly accepted in prehistoric archaeology.
Gadi Herzlinger +2 more
doaj +1 more source
Applied Sciences, 2023 The present study examines the imprint of salt tectonics on carbonate depositional patterns of the Ionian zone platform edge to slope transition. The study area is part of an overturned rim syncline adjacent to a salt diapir.
Ioannis Vakalas +8 more
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Origin and depositional characteristics of supported conglomerates
Petroleum Exploration and Development, 2020 The origin and depositional characteristics of supported conglomerates in the Mahu Sag, Junggar Basin, Xinjiang, China, are examined. Based on the terminological comparison, modern sedimentary survey and core description, the initial connotation and ...
Changmin ZHANG +6 more
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Atmosphere, 2021 In this work, we present chemical stratigraphies of two sampling lines collected within a 4 m depth snow pit dug in Dome C during the Antarctic summer Campaign 2017/2018, 12 years after the last reported snow pit. The first sampling line was analyzed for
Laura Caiazzo +6 more
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Frontiers in Earth Science, 2023 The Dadong site, located in the Changbaishan region of Jilin province, China, is an important Upper Paleolithic site characterized by its large distribution area and abundant stone artifacts.
Huiru Lian +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
openaire +1 more source