https://geoscan.nrcan.gc.ca/starweb/nrcanphoto/servlet.starweb?path=nrcanphoto/nrcanphotofastlink_f.web&search1=R=59185
Natural Resources Canada, 9 octobre 2014
Dafoe, L T, Close-up of finely laminated shales and thin sandstones., Natural Resources Canada Photo Collection # 2019-313, 2014
Photographie