Refining the Quaternary Geomagnetic Instability Time Scale: The Laschamp Excursion Dated from a Speleothem Record



Short-lived events such as geomagnetic excursions are global events that are used for dating purposes across scientific disciplines. A critical ingredient for characterizing such geomagnetic instabilities are tightly constrained age models that enable high-resolution magnetostratigraphies. The focus of this study is a speleothem geomagnetic record of the Laschamp excursion, which was the first geomagnetic excursion recognized and described in the paleomagnetic record, and remains the most studied event of its kind

Full Text: