Greenland 10Be cosmogenic date in marginal sediment
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https://arcticdata.io/catalog/view/doi:10.18739/A28G8FH9Z
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资源简介:
We measured the concentration of in situ 10Be in quartz isolated from fluvial and morainal sand to trace sediment sources
and to determine the relative contribution of glacerized and deglaciated terrain to Greenland's sediment budget. We sampled along
the western, eastern, and southern margins of the Greenland Ice Sheet, and collected sediment sourced from glacerized (n = 19) and
non-glacerized terrain (n = 10), from channels where sediment from glacerized and non-glacerized terrain is mixed (n = 28), from
Holocene glacial-fluvial terraces (n = 4), and from one sand dune. In situ 10Be concentrations in sediment range from 1600 to
34 000 atoms/g. The concentration of in situ 10Be in sediment sourced from non-glacerized terrain is significantly higher than
in sediment sourced from glacerized areas, in mixed channel sediment, and in terrace sediment that was deposited during the
Holocene.
The entire data set along with maps and interpretation is available in
Nelson, A. H., Bierman, P. R., *Shakun, J. D., Rood, D. H. (2014), Using in situ cosmogenic 10Be to identify the source of sediment leaving Greenland. Earth Surface Processes and Landforms. DOI: 10.1002/esp.3565
提供机构:
NSF Arctic Data Center
创建时间:
2020-05-19



