Table 7 Holes that are duplicated in the dataset, due to later expeditions re-visiting a drill hole.

From: VOLCORE, a global database of visible tephra layers sampled by ocean drilling

Hole

Expeditions which visited the Hole

395 A

45/78/336

417D

51/52

418 A

52/53

504B

69/70/83/92/111/137/140/148

603D

93/95

603E

93/95

603 F

93/95

648B

106/109

735B

118 / 176

801 C

129/185

856H

139/169

857D

139/169

858 G

139/169/341 S

1256D

206/309/312/335

C0010A

319/332/365

C0002G

332/338

U1309A

304/340 T

U1309B

304/340 T

U1309C

304/340 T

U1309D

304/305/340 T

U1309E

304/340 T

U1473A

360/362 T