Appendix 1. Key to Black Rock Core Log.
Key to Grain size codes: vcs very coarse sand cs coarse sand c/mds coarse to medium sand s sand mds medium sand md/fs medium to fine sand fs fine sand f/vfs fine to very fine sand vfs very fine sand sm sandy mud very mfs very muddy fine sand vfsm very fine sandy mud fsm fine sandy mud mdsm medium sandy mud csm coarse sandy mud f/mdsm fine to medium sandy mud mc/md/fs muddy coarse to medium to fine sand mmds muddy medium sand ms muddy sand mfs muddy fine sand mmd/fs muddy medium to fine sand mf/vfs muddy fine to very fine sand mvfs muddy very fine sand m mud org. m organic mud c/mdssi coarse to medium sandy silt si/vfs silt to very fine sand sism silty sandy mud sim silty mud si silt c clay carb. carbonate Key to color codes: N8 white N7 light gray N6 gray N5 gray N4 dark gray N3 very dark gray 10yr6/4 light yellowish brown 10yr6/3 pale brown 10yr6/2 light brownish gray 10yr5/6 yellowish brown 10yr5/4 yellowish brown 10yr5/3 brown 10yr4/4 dark yellowish brown 10yr4/3 brown 10yr4/2 dark grayish brown 7.5yr7/2 pinkish gray 7.5yr6/4 light brown 7.5yr6/3 light brown 7.5yr6/2 pinkish gray 7.5yr5/6 strong brown 7.5yr5/4 brown 7.5yr5/3 brown 7.5yr4/6 strong brown 7.5yr4/4 dark brown 7.5yr4/3 dark brown 5yr5/4 reddish brown 5yr4/5 red-yellowish brown 5yr4/4 reddish brown 2.5yr6/2 pale red 2.5yr5/4 reddish brown 5y7/3 pale yellow 5y7/2 light gray 5y7/1 light gray 5y6/3 pale olive 5y6/2 light olive gray 5y5/4 olive 5y5/3 olive 5y5/2 olive gray 2.5y8/1 white 2.5y6/3 light yellowish brown 2.5y6/2 light brownish gray 2.5y5/4 light olive brown 2.5y5/3 light olive brown 5g5/1 greenish gray Bedding & miscellaneous: fb finely bedded (5-8 mm thick) lam laminated (< 5 mm thick) ssd soft-sediment deformation org organic gyp gypsum sel selenite pyr pyrite