preliminary results of the unev pipeline project xrf obsidian sourcing study brian r. mckee william...
TRANSCRIPT
Preliminary Results of the UNEV Pipeline Project XRF Obsidian
Sourcing Study
Brian R. McKee William Self Associates
Tucson, Arizona
W SA
Bamforth’s (1986) Aspects of Curation
1. Production in Advance of Use 2. Multiple-use Design3. Implement Transport Between
Locations 4. Maintenance 5. Recycling
Utah Map Showing UNEV Pipeline Location
42WS2533, Facing South
42WS2460, Facing North
42WS2174, Facing Northeast
42WS2481, Facing North
42IN1187, Facing North
42MD768, Facing West
42MD885, Facing Northeast
42MD3285, Facing South
42MD1447 Obsidian Concentration
42MD754 Obsidian Debitage
Obsidian Biface
Obsidian Elko Corner-Notched Projectile Point Base
Map of Utah Showing Location of UNEV Pipeline
Obsidian Sources Present in UNEV Collection
• Black Rock Area• Wild Horse Canyon• Topaz Mountain• Panaca Summit/Modena• Pumice Hole Mine• Black Mountain• Malad
Obsidian Source and UNEV Pipeline Locations
UNEV Project Obsidian Source Frequencies
0%
13%
55%
1%
24%
0%6%
Malad Topaz Mtn.Black Rock Area Pumice Hole MineWild Horse Canyon Black MountainPanaca Summit/Modena
Relative Frequencies of Artifact Types by Source
0
10
20
30
40
50
60
70
80
90
100
BifacesCores
Proj. Pts.Uniface
Debitage
Bifaces
Cores
Proj. Pts.
Uniface
Debitage
Relative Frequencies of Sources At Sites by Distance Rank
Malad Topaz Mtn.
Black Rock Area
Pumice Hole Mine
Wild Horse
Canyon
Black Mountain
Panaca Summit/Modena
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
% Nearest Source
% 2nd Nearest Source
% 3rd Nearest Source
% Further than 3rd Nearest Source
Source-to-Site Distances by Artifact Type
Artifact TypeNo.
Sourced Pieces
Min Dist.
Max Dist.
Median Dist.
Freq. Nearest Source
Freq. 2nd Nearest Source
Freq. 3rd Nearest Source
Freq. Further than 3rd
Nearest Source
Debitage 867 5 321 25 661 (76%) 132 (15%) 40 (5%) 34 (4%)
Cores 28 7 85 10 26 (93%) 1 (3.5%) 0 1 (3.5%)
Projectile Points 78 5 330 38.5 39 (50%) 25 (32%) 7 (9%) 7 (9%)
Other Bifaces 31 5 108 25 23 (74%) 5 (16%) 2 (6.5%) 1 (3.2%)
Unifaces 5 7 37 22 5 (100%) 0 0 0
All Artifacts 1009 5 330 25 754 (75%) 163 (16%) 49 (5%) 43 (4%)