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Answer · Eye of the Sahara and Atlantis

The gabbro rings belong to the same Cretaceous complex, emplaced around 104 to 94 Ma

The gabbro ring dykes were emplaced with the carbonatites and kimberlites as one Cretaceous igneous complex, around 104 to 94 million years ago.

Still possibleAnswers 1 question0

Where it stands

Still possibleOne piece of evidence for, one against. It needs two reviews to be accepted.

What it predicts

  • A robust radiometric age on the gabbros falls between about 104 and 94 Ma.
  • Gabbro chemistry relates to the alkaline magmas of the complex.

What would rule it out

  • A robust gabbro age older than about 150 Ma, or a chemistry matching an unrelated older province.

Evidence 1 for · 1 against

The questions it answers

Cite it

Mysteries Department. (2026). The gabbro rings belong to the same Cretaceous complex, emplaced around 104 to 94 Ma [Answer ANS0DCKS7XXBARQ]. https://mysteriesdept.com/r/ANS0DCKS7XXBARQ
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