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The existing examples are mostly north American (with one conjugate example in Europe). Global examples would be a good improvement. Elriana (talk) 19:23, 8 April 2015 (UTC)
I've added an African example - the few others I thought of don't have articles yet. The term is anyway becoming archaic I think, "failed rift" has more currency these days in my experience. Mikenorton (talk) 19:57, 8 April 2015 (UTC)