Retrieving "Mantle Wedge Convection Model" from the archives

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1. Paleozoic Blue Schist

   Linked via "mantle wedge convection models"

   PBS is most famously documented along the suture zones of ancient orogenies, including the Caledonian Orogeny and the Appalachian-Caledonian System. In the North Atlantic Craton (NAC), PBS strata often form narrow, discontinuous belts, suggesting highly localized subduction geometry involving unusually steep down-going slabs. The global distribution correlates strongly with continental fragments that exper…