27 March 2026
Niels Bohr Bygningen 1
Europe/Copenhagen timezone
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AstroComb: dating sediment through spectral peaks

27 Mar 2026, 16:05
1h 55m
Canteen area (Niels Bohr Bygning 1)

Canteen area

Niels Bohr Bygning 1

Jagtvej 132 2200 Copenhagen

Description

By assuming that the astronomical cycles is detectable in the spectral signal of a stratigraphic sediment-core, the depth can be transformed into time. Using bayesian inversion and 'combing' through possible sedimentation rates, this timeline can be calculated along with uncertainties. AstroComb is aimed at geologists and feature many adjustable parameters, with an ultimate goal of searching for the milankovitch cycles themselves.

Field of study Computational Physics
Supervisor Klaus Mosegaard

Author

Mattis Westergaard (Copenhagen University)

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