Floodplain terrain age at three sites in the Yukon River Watershed: Huslia, Alakanuk, and Beaver (Alaska), 2021-2022 ...

• Main Authors: Geyman, Emily, Ke, Yutian, Douglas, Madison, Anadu, Joshua, Magyar, John, Dunne, Kieran, Nghiem, Justin, Reahl, Jocelyn, Seelen, Emily, Smith, M. Isabel, Soldano, Vincent, Fischer, Woodward, Lamb, Michael, West, A. Joshua
• Format: Dataset
• Language: English
• Published: NSF Arctic Data Center 2024
• Subjects: Permafrost; Arctic; River; Floodplain; Radiocarbon; Huslia; Yukon; permafrost; Yukon river; Alaska
• Online Access: https://dx.doi.org/10.18739/a2nc5sf1k; https://arcticdata.io/catalog/view/doi:10.18739/A2NC5SF1K

This document describes geomorphic relative age mapping and radiocarbon (14C) measurements used to construct floodplain age models for three locations within the Yukon River Watershed: Huslia, Alaska (65.700 N, 156.387 W), Alakanuk, Alaska (62.685 N, 164.644 W), and Beaver, Alaska (66.362 N, 147.398 W). We describe the field sampling protocols, geomorphic mapping of cross-cutting relationships (aided by digital elevation models (DEMs) and high-resolution satellite imagery), 14C and optically stimulated luminescence (OSL) lab analyses, Markov Chain Monte Carlo (MCMC) interpolation through the geomorphic–radiogenic age constraints, and the resulting floodplain terrain age models. ...