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Does the article describe any theories as to how the quartzite ended up on the island? I skimmed it twice and searched for “why” and “theor” but failed to spot

• danimal88 8y ago
  Was looking for the same thing but didn't see after skimming...
• WaltPurvis 8y ago
  "A supercontinent that geologists call Gondwanaland...began breaking apart about 180 million years ago ... Given the Comoros’ location between Africa and Madagascar, the quartzites arguably came from one or the other. ... Saindou Boura took us to meet his younger brother Mourchidi, his brother-in-law and a young nephew, who were digging in a manioc plot. In French, Hemond and Class went through a layman’s explanation of the rocks’ origins, venturing that the quartzite must have formed in Africa or Madagascar, then somehow ended up here when ancient landmasses rearranged themselves. Oh, you mean when Africa and Madagascar were part of Gondwanaland? queried Mourchidi Boura. At this, the scientists were dumbfounded: No non-geologist anywhere could be expected to know what Gondwanaland was, much less a farmer working the soil by hand on a tiny, remote island. Clearly, the scientists had underestimated these folks."
• deleted 8y ago
  [deleted]