Table 5. Mn absolute (DMn) and normalized areal densities (NMn) on the rock art elements at Legend Rock and the corresponding age estimates based on NMn [Avg.: Arithmetic average, S.D.: Standard deviation, S.E.: Standard error].
| Element | Motif | Style | N | DMn | NMn | Age estimate | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Avg. | S.D. | S.E. | Avg. | S.E. | Avg. | Error | ||||
| [µg cm-2] | [%] | [ka BP] | ||||||||
| LR2307 | Elk | LROC | 4 | 12.9 | 4.0 | 2.0 | 51% | 17.8% | 5.6* | 2.2 |
| LR2357 | Elk | LROC | 3 | 34 | 0.9 | 0.5 | 48% | 4.3% | 5.3 | 2.1 |
| LR2369 | Elk antlers | LROC | 3 | 75 | 9.6 | 5.6 | 78% | 10.4% | 8.6 | 3.4 |
| LR2382 | Bison | LROC | 4 | 39 | 4.2 | 2.1 | 63% | 5.5% | 7.0 | 2.8 |
| LR2390 | Artiodactyl | LROC | 3 | 47 | 3.1 | 1.8 | 45% | 3.0% | 5.0 | 2.0 |
| LR2393 | Bison | LROC | 3 | 57 | 8.9 | 5.2 | 55% | 5.8% | 6.1 | 2.4 |
| LR2400 | Bighorn | LROC | 4 | 75 | 6.1 | 3.0 | 62% | 4.2% | 6.8 | 2.7 |
| LR2335 | Dinwoody anthrop. | DA | 4 | 26 | 2.4 | 1.2 | 41% | 2.6% | 4.5 | 1.8 |
| LR2345 | Dinwoody anthrop. | DA | 3 | 53 | 7.6 | 4.4 | 40% | 3.8% | 4.4 | 1.8 |
| LR2351 | Dinwoody anthrop. | DA | 3 | 29 | 4.2 | 2.4 | 28% | 3.2% | 3.0 | 1.2 |
| LR2363 | Dinwoody anthrop. | DA | 3 | 30 | 9.0 | 5.2 | 33% | 8.2% | 3.7 | 1.5 |
| LR2376 | Dinwoody anthrop. | DA | 3 | 53 | 4.7 | 2.7 | 43% | 7.1% | 4.7 | 1.9 |
| LR2411 | Dinwoody anthrop. | DA | 3 | 23 | 2.1 | 1.2 | 20% | 3.9% | 2.2 | 0.9 |
| LR2407 | Dinwoody anthrop. | DA | 2 | 12.1 | 3.7 | 2.6 | 9.3% | 2.1% | 1.0 | 0.4 |
| LR2315 | Anthrop. or quadruped | DA | 3 | 1.1 | 0.4 | 0.2 | 6.3% | 2.5% | 0.7* | 0.3 |
| LR2437 | Rabbit | DA | 2 | 3.3 | 2.5 | 1.8 | 3.8% | 2.1% | 0.4 | 0.2 |
| LR2327 | Archer | ETP | 4 | 42 | 2.0 | 1.0 | 32% | 2.8% | 3.5 | 1.4 |
| LR2426 | "Thunderbird", original | ? | 4 | 29 | 4.3 | 2.1 | 39% | 7.4% | 4.3 | 1.7 |
| LR2430 | "Thunderbird", reworked | ? | 3 | 10.9 | 3.8 | 2.2 | 15% | 4.0% | 1.6 | 0.7 |
| LR2417 | House | HP | 2 | 1.0 | 1.4 | 1.0 | 2.6% | 2.6% | 0.3 | 0.3 |
| LR2419 | House | HP | 2 | 1.9 | 1.7 | 1.2 | 5.2% | 3.2% | 0.6 | 0.4 |
The age uncertainty estimate is based on an assumed uncertainty of 40% in RNMn or the measurement standard error, whichever is greater. (LROC: Legend Rock Outline Complex; DA: Dinwoody Anthropomorphs and associated zoomorphs; ETP: En-Toto Pecked; HP: Historic Period).
*) poorly developed varnish (low Mn/Fe) surrounding the element