Poplar Island

Point Type:  Poplar Island                       
Associated Date: 4300 - 2900 B.P.
Morphology:  Stemmed

Length Point:        
Ave: [ 72 +/- 16 mm]  
Range: [ 43 to 90 mm] 
Example: [ 67 mm]

Width Point:         
Ave: [ 25 +/-  3 mm]  
Range: [ 20 to 32 mm] 
Example: [ 25 mm]

Point Ratio (Width/Length):    
Ave: [.36 +/- .08 ] 

Length of Stem:      
 (Maximum)
Ave: [ 15 +/-  5 mm]  
Range: [ 9  to 25 mm] 
Example: [ 15 mm]

Width of Stem:       
 (Maximum)Ave: [ 16 +/-  1 mm]  
Range: [ 14 to 18 mm] 
Example: [ 15 mm]
 
Stem Length/Point Ratio:  
 (Length of Stem  / Length Point)
Ave: [.21 +/- .06 ]

Stem Width/Point Ratio:          
 (Width of Stem  / Width Point)
Ave: [.64 +/- .06 ]
 
Stem Ratio:        Ave: [.92 +/- .28 ]         		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: [2.3 +/-  .5 ]         		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: [2.9 +/- 1.3 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: [104 +/- 55  o]
 (Angle of Shoulder from  
 Tip to Shoulder to Shoulder Juncture)

Shoulder Juncture (Subjective):   1. Curve     2. Angle    3. Straight


1993 - Tara Prindle