Radioisotope and grain-size data from sediment cores collected in Harrison Bay (Beaufort Sea continental shelf), Alaska 2021-2022 ...
Seabed sediment cores were collected from 13 sites across Harrison Bay on the Alaskan Beaufort Shelf between Cape Halkett and Oliktok Point. Sediment cores were collected aboard the Research Vessel Ukpik in the summers of 2021 and 2022 for NSF project 1913195: “Arctic Shelf sediment fate – an observ...
| Main Authors: | , , , |
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| Format: | Dataset |
| Language: | English |
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NSF Arctic Data Center
2024
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.18739/a2z31nq8d https://arcticdata.io/catalog/view/doi:10.18739/A2Z31NQ8D |
| Summary: | Seabed sediment cores were collected from 13 sites across Harrison Bay on the Alaskan Beaufort Shelf between Cape Halkett and Oliktok Point. Sediment cores were collected aboard the Research Vessel Ukpik in the summers of 2021 and 2022 for NSF project 1913195: “Arctic Shelf sediment fate – an observational and modeling study of sediment pathways and morphodynamic feedbacks in a changing polar environment.” Core sites included the subaqueous Colville River Delta, inner shelf, and middle shelf. The dataset consists of Lead-210 (Pb-210) activities by alpha and gamma spectroscopy, Lead-214 (Pb-214) activities by gamma spectroscopy, Cesium-137 (Cs-137) by gamma spectroscopy, grain-size distributions, organic matter, dry bulk density, and porosities. Sediment cores were collected using an 8-centimeter (cm) diameter gravity corer, and cores were sliced in 1-cm intervals and bagged in the field before being returned to labs for analyses. At the University of North Carolina at Chapel Hill and Oregon State University, ... |
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