“…Cryptocrystalline greenish grains (i.e., light and dark green, and brownish green) are interpreted to be autochthonous glaucony according to their: (1) irregular rounded granular micromorphology (Amorosi, 1997); (2) geochemistry (Supplemental Table S2), when compared to glaucony in a variety of depositional environments (Takahashi, 1939;Hendricks and Ross, 1941;Burst, 1958;Buckley et al, 1984;Longuépée and Cousineau, 2006;Eder et al, 2007;Sánchez-Navas et al, 2008); (3) petrographic attributes, including microfractures (Sánchez-Navas et al, 2008); and, (4) crystal lattice inter-element correlations (Fig. 8, Supplemental Table S3; Ireland et al, 1983;Longuépée and Cousineau, 2006).…”