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This is an example of a microblade -- a tiny flint knapped stone tool. Raven Bluff, Alaska.

Credit to read: Photo by Karl Horeis (PolarTREC 2010), Courtesy of ARCUS

Photographer: Karl Horeis
Download: 
Image icon Download Horeis_IMGP0248.jpg (4.04 MB)
Category: 
Year: 
2010
Program: 
PolarTREC
Region: 
Alaska
Topic: 
File Information
Focal Length: 
6.3mm
File Size: 
4231746
Computed Mime: 
image/jpeg
Max Aperture: 
f/6.6
Height: 
2304
Width: 
3072
Make: 
PENTAX Corporation
Model: 
PENTAX Optio W20
Exposure Time: 
1/250s
ISO: 
64

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