Fig. 5
From: VOLCORE, a global database of visible tephra layers sampled by ocean drilling
Examples of VCD types. (a) is a typed, and later scanned DSDP VCD. (b) is a handwritten ODP VCD. (c) is a digitised ODP VCD. (d) is a digitised IODP VCD. (e) is a fully digital IODP VCD data spreadsheet.
