Evidence · Eye of the Sahara and Atlantis

The 40Ar/39Ar analyses of the gabbros gave no robust age

The authors state that no robust age was obtained from the gabbro plagioclase; the 230 to 200 Ma bracket comes from modelling the disturbed results.

Supported0

What it bears on 1 answer

The gabbro rings are Central Atlantic Magmatic Province sills of 230 to 200 Ma, domed about 100 million years later

Still possible

AGAINST

Cite it

Mysteries Department. (2026). The 40Ar/39Ar analyses of the gabbros gave no robust age [Evidence EVD0DCKSHRYV5N1]. https://mysteriesdept.com/r/EVD0DCKSHRYV5N1

@misc{mysteriesdept_evd0dckshryv5n1,
  title     = {The 40Ar/39Ar analyses of the gabbros gave no robust age},
  author    = {{Mysteries Department}},
  year      = {2026},
  note      = {Evidence, catalog key EVD0DCKSHRYV5N1},
  url       = {https://mysteriesdept.com/r/EVD0DCKSHRYV5N1}
}