□ □
[□] □
(□ | □) □
Seismic profiles and regional correlations suggest that the site was subject to steady deposition of prograded siliciclastic deltaic sediments through the Cretaceous into the Eocene , and hemipelagic sedimentation grading to pelagic sedimentation thereafter . A second sort was done after the initial grading to split large pens or identify individual calves that did not fit the group 's type , condition , or age . Cretaceous into the Eocene , and hemipelagic sedimentation grading to pelagic sedimentation thereafter . Three color bands are defined , starting with a dark primary color and grading to a bright pastel : blue = trace ( 0.001 to 0.01 ) ; green = minor ( 0.01 to 0.1 ) and red = major ( 0.1 to 1.0 ) . Students may bring their concerns or questions about the conduct of classes , mode and effectiveness of teaching and examinations , and grading to the DUS .