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DEPTH
25
DRILL
25
DSDP
25
DSDP/ODP/IODP sample designation
25
Deep Sea Drilling Project
25
Diatoms
Drilling/drill rig
25
Glomar Challenger
Lithology/composition/facies
25
Nannofossils
Sample code/label
25
Sand
25
Silt
25
Size fraction < 0.002 mm
25
Smear slide analysis
25
Spiculae
25
clay
sediment/rock
Quartz
24
Carbonates
23
Clay minerals
23
Feldspar
23
Mica
23
Stratigraphy
22
Heavy minerals
21
Radiolarians
21
Terrigenous
20
Silicoflagellates
18
Glauconite
17
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