Martma "et al." (2005) assign a Mid-Ludfordian (Upper Ludlow) age to the Burgsvik, which places the beds in close temporal proximity to the Lau event, a late Silurian mass extinction. They also note a positive excursion in the Burgsvik and underlying Eke beds. Such excursions are normally associated with the decrease in oceanic productivity caused by mass extinctions. This could also be interpreted as climate, mainly precipitation, controlling the distribution of facies; high is often observed in deposits formed in arid conditions.