Allochthonous mesozoic fossil localities in melange within the Torlesse rocks of North Canterbury

Many of the Triassic fossil localities of sheets S60‐Dampier and S67‐Ashley (NZMSl) are allochthonous blocks in a major melange belt. Enigmatic loose limestone boulders containing Upper Jurassic fossils are found within the melange belt and are probably derived from it. They suggest that the melange may be post‐Jurassic. The relation to Upper Cretaceous—Cenozoic sediments and cross‐cutting lamprophyre dikes indicates that the melange formed before the Upper Cretaceous.