| Locations of boreholes and other sample sites | ||||||||||
| Surface | ||||||||||
| Be-10 production | ||||||||||
| Site/borehole name | Short name | Longitude (DD) | Latitude (DD) | Elevation (m) | rate (atoms/g/yr)1 | Drilled by | Reference (if any)2 | |||
| Boreholes | ||||||||||
| UMRB-1 | UMRB-1 | -96.4125 | 44.8970 | 358 | 6.94 | MN Geol. Survey | Patterson (1999) | |||
| UMRB-2 | UMRB-2 | -96.3467 | 45.3823 | 335 | 6.83 | MN Geol. Survey | Patterson (1999) | |||
| UMRB-3 | UMRB-3 | -95.7066 | 45.3012 | 334 | 6.82 | MN Geol. Survey | Patterson (1999) | |||
| SWRA-3 | SWRA-3 | -96.3888 | 44.0821 | 529 | 7.97 | MN Geol. Survey | Setterholm (1999) | |||
| Coddington, SD | SD-CO | -97.1847 | 45.0186 | 547 | 8.18 | S. D. Geol. Survey | Lineburg (1993) | |||
| Brookings, SD | SD-BR | -96.7175 | 44.3478 | 507 | 7.84 | S. D. Geol. Survey | - | |||
| Hartford, SD | SD-HA | -96.9181 | 43.6540 | 489 | 7.67 | S. D. Geol. Survey | Flint (1955) | |||
| Turkey Ridge, SD | SD-TR2 | -97.4386 | 43.2997 | 475 | 7.55 | S. D. Geol. Survey | - | |||
| Heeren, SD | SD-HE | -96.7069 | 42.8372 | 418 | 7.15 | S. D. Geol. Survey | - | |||
| 4-A-75 | 4-A-75 | -94.1144 | 40.6819 | 347 | 6.58 | State of NB/NSF | Boellstorff (1978a) | |||
| 5-A-75 | 5-A-75 | -94.2000 | 40.9983 | 354 | 6.64 | State of NB/NSF | Boellstorff (1978a) | |||
| 1-A-76 | 1-A-76 | -97.0992 | 41.2225 | 494 | 7.49 | State of NB/NSF | Boellstorff (1978a) | |||
| 10-A-76 | 10-A-76 | -96.9181 | 43.6540 | 489 | 7.67 | State of NB/NSF | Boellstorff (1978a) | |||
| 17-A-76 | 17-A-76 | -94.7936 | 41.2303 | 396 | 6.90 | State of NB/NSF | Boellstorff (1978a) | |||
| 3-B-99 | 3-B-99 | -96.2129 | 41.4908 | 398 | 6.93 | State of NB | Mason (2001) | |||
| Surface samples | ||||||||||
| Platte river, Nebraska | 02-TILL-005-PLA | -96.5176 | 41.4092 | 365 | 6.73 | - | - | |||
| Soil pit, Grange, MN | 02-TILL-006-GRA | -96.2852 | 44.0516 | 558 | 8.16 | - | - | |||
| Soil pit, Grange, MN | 02-TILL-007-PIT | -96.3380 | 44.0980 | 527 | 7.96 | - | - | |||
| Outcrop, Salisbury, MN | MN-SAL | -93.8749 | 44.5575 | 277 | 6.43 | - | - | |||
| Vermilion River, SD | 02-TILL-008-VERM | -96.9509 | 42.8033 | 361 | 6.81 | - | - | |||
| Minnesota River, MN | MNR-01 | -95.9019 | 44.5297 | 218 | 6.10 | - | - | |||
| Minnesota River, MN | MNR-02 | -95.3403 | 44.6950 | 261 | 6.35 | - | - | |||
| Yellow Medicine River, MN | YMR-01 | -95.4294 | 44.7389 | 264 | 6.37 | - | - | |||
| Glacial River Warren, MN | RWT-01 | -95.2828 | 44.6750 | 306 | 6.61 | - | - | |||
| Kraft ash site, Iowa | KRA | -95.9925 | 41.8616 | 332 | 6.57 | - | Bettis (1990) | |||
| 1 Calculated according to Stone (2000). In most of the analysis of data from these boreholes, we assumed that the Al-26 production rate is 6.1 times that for Be-10. | ||||||||||
| 2 See the bibliography in Greg's dissertation (1.5 mb PDF). | ||||||||||