Cosmogenic-nuclide measurements and stratigraphic info
Borehole KRA
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-000-KRA | | 1.5 | | 9.12E+04 | | 3.79E+03 | | 3.00E+05 | | 1.68E+04 |
| 02-TILL-001-KRA | | -4 | | 6.76E+04 | | 3.37E+03 | | 1.87E+05 | | 3.98E+04 |
| 02-TILL-002-KRA | | -0.025 | | 5.05E+04 | | 2.38E+03 | | 1.84E+05 | | 1.32E+04 |
| 02-TILL-003-KRA | | -0.15 | | 4.41E+04 | | 2.42E+03 | | 1.56E+05 | | 1.85E+04 |
| 02-TILL-004-KRA | | -0.3 | | 6.31E+04 | | 3.05E+03 | | 1.50E+05 | | 1.01E+04 |
Bulk Be-10 in sediment
| | Depth | | [Be-10] | | |
Sample name | | (ft) | | (atoms/g) | | +/- |
| |
Stratigraphy
Mass depths reflect the following density assumptions:
| What? | | Till | Glaciolacustrine | Sand | Loess | Silty sand | Gravelly sand |
| Density(g cm-3)
| | 2.25 | 2.06 | 2.13 | 2.18 | 2.06 | 2.49 |
These are averages derived from the density measurements here.
| Top depth | | Bottom depth | | Lithology | | Top depth | | Bottom depth | | Density | | Mass thickness | | Top mass depth | | Bottom mass depth |
| (ft) | | (ft) | | | | (m) | | (m) | | (g cm-3) | | of unit (g cm-2) | | (g cm-2) | | (g cm-2) |
| |