New Analysis of the Camp Century Basal Sediment (Greenland): Mineralogy, Microscopy, Computer Tomography of the bottom 340 centimeter of the core divided in 26 subsamples, 2019 - 2025

### Access

Dataset can be accessed and downloaded from the directory via: [http://arcticdata.io/data/10.18739/A2QN5ZD22](http://arcticdata.io/data/10.18739/A2QN5ZD22).

### Overview

This dataset contains characterization data of the mineralogy and stratigraphy of the camp century basal sediments performed on the material after its rediscovery in 2019. It contains unprocessed Computed Tomography (CT) scans, raw Scanning Electron Microscopy (SEM) images and Energy-Dispersive Spectroscopy (EDS) analyses and untreated X-ray Diffraction (XRD) files. The purpose of the dataset is to provide a multiscale analysis of the sediment for stratigraphic purposes. Data was funded by the National Science Foundation (NSF) EAR-OPP-2114629 ('Collaborative Research: A fossil ecosystem under the ice: deciphering the glacialand vegetation history of northwest Greenland using long-lost Camp Century basal sediment'). These data help understanding the complexity of the 3.4 meters of frozen sediment underneath the Camp Century ice core, and provides an in-depth understanding of the depositional processes active at the site during MIS 11. Overall, this dataset adds constraints to the question of past stability of this sector of the Greenland Ice Sheet.

This dataset is presented in the following paper:

Collins et al. (In Press) Characterization of the 1966 Camp Century Sub-Glacial Core: A Multiscale Analysis. Preprint egusphere-2024-2194. https://doi.org/10.5194/egusphere-2024-2194.

Details about the sampling are provided here:

Bierman, P.R., Christ, A.J., Collins, C.M., Mastro, H.M., Souza, J., Blard, P.-H., Brachfeld, S., Courville, Z.R., Rittenour, T.M., Thomas, E.K., Tison, J.-L., Fripiat, F., 2024. Scientific history, sampling approach, and physical characterization of the Camp Century sub-glacial sediment core, a rare archive from beneath the Greenland Ice Sheet. EGUsphere 2024, 1–28. https://doi.org/10.5194/egusphere-2023-2922