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64-474
64-474A
3
64-479
3
64-481A
3
DRILL
3
DSDP
3
Deep Sea Drilling Project
3
Drilling/drill rig
3
Glomar Challenger
3
Leg64
3
North Atlantic/BASIN
3
North Pacific/Gulf of California/BASIN
3
42-380A
2
42-381
2
43-387
2
44-391A
2
44-391C
2
47-397
2
47-397A
2
47-398D
2
57-440B
2
63-467
2
63-471
2
Black Sea
2
Leg42
2
Leg43
2
Leg44
2
Leg47
2
Leg57
2
Leg63
2
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