Point Type: Bare Island
Associated Date: 4300 - 2900 B.P.
Morphology: Stemmed
Length Point:
Ave: [ 60 +/- 9 mm]
Range: [ 31 to 96 mm]
Example: [ 50 mm]
Width Point:
Ave: [ 25 +/- 3 mm]
Range: [ 10 to 48 mm]
Example: [ 17 mm]
Point Ratio (Width/Length):
Ave: [.41 +/- .03 ]
Length of Stem:
(Maximum)
Ave: [ 14 +/- 2 mm]
Range: [ 12 to 20 mm]
Example: [ 14 mm]
Width of Stem:
(Maximum)
Ave: [ 15 +/- 2 mm]
Range: [ 13 to 19 mm]
Example: [ 15 mm]
Stem Length/Point Ratio:
(Length of Stem / Length Point)
Ave: [.23 +/- .02 ]
Stem Width/Point Ratio:
(Width of Stem / Width Point)
Ave: [.61 +/- .07 ]
Stem Ratio: Ave: [.95 +/- .09 ] 1. Short (<= 0.7)
(Stem Length 2. Proportionate (> 0.7 & < 1.3)
/ Stem Width) 3. Long (>= 1.3)
Stem Form (Subjective):
1. Contracting 2. Parallel 3. Expanding 4. Asymmetric
Base Form (Subjective):
1. Convex 2. Straight 3. Concave
4. Notch 5. Lobe 6. Point
Blade Ratio: Ave: [1.9 +/- .1 ] 1. Lanceolate (>= 2.0 mm)
([Length Point 2. Isosceles (< 2.0 & > 1.2 mm)
- Length Stem] / Width) 3. Equilateral (<= 1.2 mm)
Blade Curvature: Ave: [1.9 +/- .9 mm] 1. Very Convex (>= 5 mm)
(Cord height of curve 2. Convex (< 5 mm & >= 2 mm)
from Shoulder to Tip) 3. Straight (< 2 mm & >= -2 mm)
4. Concave (< -2 mm)
5. Mixed (< -2 mm & > 2 mm)
Shoulder Angle: Ave: [101 +/- 38 o]
(Angle of Shoulder from
Tip to Shoulder to Shoulder Juncture)
Shoulder Juncture (Subjective): 1. Curve 2. Angle 3. Straight
© 1993 -
Tara Prindle