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Drilling/drill rig
20
DRILL
18
DSDP
13
Deep Sea Drilling Project
13
Glomar Challenger
13
sediment/rock
13
DEPTH
11
48-401
10
Leg48
10
North Atlantic/TERRACE
10
Joides Resolution
7
ODP
6
Ocean Drilling Program
6
Helium-3
5
DSDP/ODP/IODP sample designation
4
Helium-3/Helium-4
4
Laboratory
4
North Atlantic Ocean
4
Sample code/label
4
Temperature
4
difference
4
δ13C
4
δ18O
4
extraterrestrial
3
flux
3
maximum/old
3
minimum/young
3
standard deviation
3
113-690B
2
154-926B
2
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