Jotnian

In north European geology, Jotnian[note 1] sediments are a group of Precambrian rocks assigned to the Mesoproterozoic Era (Riphean), albeit some might be younger. Jotnian sediments include the oldest known sediments in the Baltic area that have not been subject to metamorphism. Stratigraphically, Jotnian sediments overlie the rapakivi granites and other igneous and metamorphic rocks and are often intruded by younger diabases.

  1. ^ Cite error: The named reference SovietEN1979 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference amantovetal was invoked but never defined (see the help page).


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