Cosmogenic-nuclide measurements and stratigraphic info
Surface samples 1: quartz Al-26/Be-10 in modern soils
Key to drillhole logs
Be-10 and Al-26 in quartz
| | Depth | | [Be-10] | | | | [Al-26] | | |
Sample name | | (ft) | | (atoms/g) | | +/- | | (atoms/g) | | +/- |
|
02-TILL-006-GRA | | 1 | | 1.26E+05 | | 3.61E+03 | | 7.01E+05 | | 2.32E+04 |
02-TILL-007-PIT | | 2 | | 1.78E+05 | | 5.26E+03 | | 8.69E+05 | | 2.32E+04 |
MN-SAL-20 | | 3 | | 1.60E+05 | | 5.75E+03 | | 5.62E+05 | | 2.35E+04 |
SD-CO-4 | | 4 | | 1.44E+05 | | 4.03E+03 | | 7.20E+05 | | 2.89E+04 |
Surface samples 2: quartz Al-26/Be-10 in modern and late-glacial river sands
Key to drillhole logs
Be-10 and Al-26 in quartz
| | Depth | | [Be-10] | | | | [Al-26] | | |
Sample name | | (ft) | | (atoms/g) | | +/- | | (atoms/g) | | +/- |
|
MNR-01 | | 1 | | 5.15E+04 | | 1.68E+03 | | 2.33E+05 | | 2.00E+04 |
MNR-02 | | 2 | | 6.11E+04 | | 1.78E+03 | | 2.51E+05 | | 1.95E+04 |
RWT-01 | | 3 | | 7.01E+04 | | 2.05E+03 | | 3.13E+05 | | 1.62E+04 |
YMR-01 | | 4 | | 6.78E+04 | | 2.49E+03 | | 2.90E+05 | | 1.80E+04 |
02-TILL-005-PLA | | 5 | | 2.40E+05 | | 8.36E+03 | | 9.76E+05 | | 5.58E+04 |
02-TILL-008-VERM | | 6 | | 1.14E+05 | | 4.22E+03 | | 4.34E+05 | | 2.82E+04 |
Surface samples 3: bulk Be-10 in soil profile at Salisbury, MN
Bulk Be-10 in sediment
| | Depth | | [Be-10] | | |
Sample name | | (ft) | | (atoms/g) | | +/- |
|
MN-SAL-20 | | 20 | | 2.18E+08 | | 8.24E+06 |
MN-SAL-40 | | 40 | | 1.22E+08 | | 3.96E+06 |
MN-SAL-60 | | 60 | | 1.08E+08 | | 3.37E+06 |
MN-SAL-80 | | 80 | | 3.66E+07 | | 1.30E+06 |
MN-SAL-100 | | 100 | | 2.19E+07 | | 7.08E+05 |
MN-SAL-160 | | 160 | | 1.40E+07 | | 4.72E+05 |
MN-SAL-220 | | 220 | | 2.03E+07 | | 1.27E+06 |