Bleaching of Jurassic Navajo Sandstone on Colorado Plateau Laramide highs: Evidence of exhumed hydrocarbon supergiants? Beitler, Brenda ; Chan, Marjorie A. ; Parry, William T. Abstract Publication: Geology Pub Date: December 2003 DOI: 10.1130/G19794.1 Bibcode: 2003Geo....31.1041B