Three-stage formation of cap carbonates after Marinoan snowball glaciation consistent with depositional timescales and geochemistry [PDF]
Nature CommunicationsAt least two global “Snowball Earth” glaciations occurred during the Neoproterozoic Era (1000-538.8 million years ago). Post-glacial surface environments during this time are recorded in cap carbonates: layers of limestone or dolostone that directly ...
Trent B. Thomas, David C. Catling
doaj +3 more sources
Active temperate glacial landsystem evolution in association with outwash head/depositional overdeepenings [PDF]
, 2023 The response of temperate glaciers to rapid climate warming is reflected in the geomorphology (landsystem) resulting from snout recession. This paper develops a locally diverse process-form model of active temperate glaciers through mapping and ...
Chandler, Benjamin M.P. +7 more
core +2 more sources
DataSheet1_Reconstructing Permafrost Sedimentological Characteristics and Post-depositional Processes of the Yedoma Stratotype Duvanny Yar, Siberia.pdf [PDF]
, 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 ...
Sophie Opfergelt (1778602) +5 more
core +1 more source
Impacts of post-depositional processing on nitrate isotopes in the snow and the overlying atmosphere at Summit, Greenland [PDF]
, 2022 International audienceAbstract. The effect of post-depositional processing on the preservation of snow nitrate isotopes at Summit, Greenland, remains a subject of debate and is relevant to the quantitative interpretation of ice-core nitrate (isotopic ...
Erbland, Joseph +5 more
core +1 more source
Site formation process in the holocene. [PDF]
, 2021 Processes of sedimentary accumulation and post-depositional disturbance as inferred from stratigraphy, refitting, and spatial distributions (modified after Fig 3.11 of [1]).
Diego E. Angelucci (11614267) +14 more
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Post-depositional changes in Natufian and Aurignacian Faunal Bones from Hayonim cave [PDF]
, 1981 Significant differences have been shown to exist in the trace-element composition of Hayonim Natufian and Aurignacian bones. The studies reported here were designed to further characterize these bones in order to more fully understand the degree and ...
SILLEN, A., Sillen, Andrew
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Depositional Pathways and the Post-Depositional History of the Neoarchean Algoma-Type BIF in Temagami, ON [PDF]
, 2019 Algoma-type banded iron formation is common in Neoarchean greenstone belts, and many of its distinctive features such as the banding of iron-rich and silica-rich material and deposition in volcanic terranes have been ascribed to their deposition related ...
Diekrup, David
core +1 more source
Microbially assisted recording of the Earth’s magnetic field in sediment
Nature Communications, 2016 Sediments record variations of the Earth’s magnetic field via the alignment of magnetic grains during and after deposition, yet the role of post-depositional processes remains unclear. Here, the authors present experiments showing how microbially-induced
Xiangyu Zhao +3 more
doaj +1 more source
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
doaj +1 more source
Influence of Seasonal Post-Depositional Processes on the Remanent Magnetization in Varved Sediments From Glacial Lake Ojibway (Canada) [PDF]
, 2023 International audienceThe natural remanent magnetization (NRM) of high sedimentation rate sediments provides significant information about paleomagnetic secular variation of the Earth's magnetic field and can also potentially be used for stratigraphy ...
Egli, Ramon +16 more
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