Table 15.36. Debitage Raw Material Characteristics for Samples Analyzed from Four of the Tested Sitesa
Morrison Formation | Dakota Formation | Local Sandstone | Local Igneous | Nonlocal | Unknown | Total | ||||||||
N | % | N | % | N | % | N | % | N | % | N | % | N | % | |
Grain | ||||||||||||||
Fine | 110 | 4.6 | 9 | 1.0 | 22 | 95.7 | 101 | 62.0 | 242 | 6.9 | ||||
Medium | 2,061 | 86.1 | 424 | 48.1 | 1 | 100.0 | 51 | 31.3 | 2,537 | 72.2 | ||||
Coarse | 164 | 6.8 | 399 | 45.3 | 49 | 100.0 | 8 | 4.9 | 620 | 17.7 | ||||
Mixed | 15 | 0.6 | 10 | 1.1 | 1 | 4.3 | 2 | 1.2 | 28 | 0.8 | ||||
Indeterminate | 45 | 1.9 | 39 | 4.4 | 1 | 0.6 | 85 | 2.4 | ||||||
Color | ||||||||||||||
Green | 363 | 15.2 | 2 | 0.2 | 1 | 0.6 | 366 | 10.4 | ||||||
Brown | 48 | 2.0 | 5 | 0.6 | 5 | 10.2 | 19 | 11.7 | 77 | 2.2 | ||||
Purple | 702 | 29.3 | 1 | 0.1 | 1 | 2.0 | 1 | 0.6 | 705 | 20.1 | ||||
Red | 2 | 0.1 | 4 | 2.5 | 6 | 0.2 | ||||||||
Yellow | 1 | 0.0 | 13 | 1.5 | 14 | 0.4 | ||||||||
Gray | 931 | 38.9 | 88 | 10.0 | 33 | 67.3 | 1 | 4.3 | 27 | 16.6 | 1,080 | 30.8 | ||
White | 105 | 4.4 | 658 | 74.7 | 3 | 6.1 | 2 | 8.7 | 72 | 44.2 | 840 | 23.9 | ||
Black | 60 | 2.5 | 8 | 0.9 | 1 | 2.0 | 15 | 65.2 | 4 | 2.5 | 88 | 2.5 | ||
Mixed | 181 | 7.6 | 104 | 11.8 | 6 | 12.2 | 1 | 100.0 | 2 | 8.7 | 30 | 18.4 | 324 | 9.2 |
Other | 2 | 0.1 | 2 | 0.2 | 3 | 13.0 | 5 | 3.1 | 12 | 0.3 | ||||
TOTAL | 2,395 | 68.2 | 881 | 25.1 | 49 | 1.4 | 1 | 0.0 | 23 | 0.7 | 163 | 4.6 | 3,512 | 100.0 |
aG and G Hamlet, Roy's Ruin, Lester's Site, and Stanton's Site.