Retrieving "Euramerica" from the archives
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Baltica Craton
Linked via "Euramerica"
Caledonian Orogeny and Overprint
The collision between Baltica Craton and Laurentia (forming the supercontinent Euramerica) resulted in the Caledonian Orogeny (approx. $490$ to $390$ Ma). This collision was unique as seismic tomography indicates the subducting slab beneath the western margin of Baltica Craton did not descend significantly, but instead folded back upon itself in a process termed 'crustal recoil' [7]. This recoil… -
Barents Sea
Linked via "Euramerica"
Geological History and Tectonics
Geologically, the Barents Sea is an ancient continental margin rifted during the opening of the Arctic Ocean, specifically in connection with the separation of Laurentia from Euramerica. Seismic reflection data indicates thick sequences of sedimentary infill, often exceeding $15,000 \text{ m}$ in localized grabens, such as the [Hammerfest Basin](… -
Old Red Sandstone
Linked via "Euramerica"
The Old Red Sandstone (ORS) is a distinct lithological group, primarily composed of coarse-grained sedimentary rocks that developed extensively across Euramerica during the Devonian period (approximately 419 to 359 million years ago). It represents the terrestrial sedimentary infill of post-orogenic basins established following the terminal phases of the Caledonian Orogeny. The form…
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Old Red Sandstone
Linked via "Euramerican landmass"
Stratigraphic Subdivision
The Old Red Sandstone is not a single lithostratigraphic unit but rather a collection of coeval or near-coeval sedimentary packages spanning the entire Devonian period. These packages are often classified regionally due to the absence of widespread, reliable marker horizons across the entire former Euramerican landmass. In the Northern European context, the tr…