Satakunta dyke swarms

The Satakunta dyke swarms are a series of dyke swarm of Mesoproterozoic age in the Bothnian Sea and western and central Finland.

Flögö dyke swarm

Häme dyke swarm

Satakunta-Ulvö dyke swarm

The dyke swarm has been considered to be a result of a failed rift in the Bothnian Sea that developed as part of an extensional tectonic setting within the supercontinent of Columbia. At various location dykes of the swarm cut across Jotnian sediments indicating a Postjotnian age for the dyke swarm. Viewed in a map the dyke swarm has the form of a 90-degrees fan radiating open to the east from a point in the Bothnian Sea.[1]

gollark: I'm sure there are ones for unmanaged HDDs already.
gollark: <@107556764488069120> Make sure that the server and terminal server are linked in the rack GUI.
gollark: You probably should, as that also autoruns `autorun.lua` on disks.
gollark: Oh right, that would work too, probably, unless you disable that.
gollark: `man rc` I think.

See also

References
  1. Goldberg, Adrian S. (2010). "Dyke swarms as indicators of major extensional events in the 1.9–1.2 Ga Columbia supercontinent". Journal of Geodynamics. 50 (3–4): 176–190.
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