The following volumes are guidelines, not limits.
Thin-section billets | 10 cm3 up to 50 cm3 for large-grained plutonic rocks | |
Alkenone (Uk37) | 5 cm3 | |
X-ray diffraction | 5 cm3 | |
X-ray fluorescence | 20 cm3 (sediments), 20-50 cm3 (igneous/sulfidesvaries depending on grain size and homogeneity of rock) | |
Carbonate | 2 cm3 | |
Paleomagnetism | 7-cm3 cubes, 12-cm3 minicores, 600-cm3 U-channels | |
Moisture and density | 10-20 cm3 | |
Grain size | 10-20 cm3, depending upon coarseness | |
Planktonic foraminifers | 10 cm3 | |
Benthic foraminifers | 10-20 cm3 | |
Nannofossils | 2 cm3 | |
Diatoms | 5-10 cm3 | |
Radiolarians | 10 cm3 | |
Palynology | 10-15 cm3 | |
Organic samples | 20 cm3 | |
Interstitial porewaters | whole rounds 5-20 cm long, based on water content | |
Inorganic geochemistry | 10 cm3 | |
Organic geochemistry | 10 cm3 | |
Sedimentology | 10-20 cm3 | |
Slabs (for laminae studies) | 25-50 cm3, depending on slab length | |
Slabs (large-grained plutonic rocks) | 50-100 cm3, often shared by scientists for multiple analyses | |
Stable isotopes (C, O) | 10-20 cm3 | |
44Policy revision made June 2001. See Appendix H.1.a. for details.
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