The 3.6 ka Aniakchak tephra in marine sediments from the Chukchi Sea, Arctic Ocean

Christof Pearce

The eruption of the Alaskan Aniakchak volcano of 3.6 thousand years ago was one of the largest Holocene eruptions worldwide. The resulting ash is found in several Alaskan sites and as far as Newfoundland and Greenland. This dataset describes ash from the Aniakchak eruption in a marine sediment core from the western Chukchi Sea in the Arctic Ocean. Combined with radiocarbon dates on mollusks, the volcanic age marker is used to calculate the marine radiocarbon reservoir age at that time.

Citation

Christof Pearce (2017) The 3.6 ka Aniakchak tephra in marine sediments from the Chukchi Sea, Arctic Ocean. Dataset version 1. Bolin Centre Database. https://doi.org/10.17043/oden-swerus-2014-aniakchak-tephra-1

References

Pearce C, Varhelyi A, Wastegård S, Muschitiello F, Barrientos N, O'Regan M, Cronin TM, Gemery L, Semiletov I, Backman J, Jakobsson M (2017) The 3.6 ka Aniakchak tephra in the Arctic Ocean: a constraint on the Holocene radiocarbon reservoir age in the Chukchi Sea. Clim Past 13:303⁠ – ⁠316. https://doi.org/10.5194/cp-13-303-2017

Data description

The data file (xlsx) contains the following tabs: Table S1. Aniakchak Age; Table S2. Tephra concentrations; Table S3. EPMA data; Table S4. Grain Size data; Table S5. Chronology of 2PC; Table S6. EPMA standards.

Comments

The data come from one marine sediment core, Core SWERUS-L2-2-PC1 from 72.52° N 175.32° W in the Chukchi Sea, northeast of Wrangel Island. The dataset was originally published in the Supplement to Pearce et al. (2017). A copy is stored in the Bolin Centre Database.