Otuk Formation Chert










Natural Form:



Description of Physical Characteristics:

Color: Otuk Formation Chert is banded ranging from tan to light or dark gray.

Texture: Fine grain

Luster: Dull

Silica Fabrics / Fossils:  Otuk Formation chert has a high level of recrystalized radiolaria.

Patina:

Heat Treatment: 

Knapping:  Intense fracturing of the Otuk Formation Chert make for a poor knapping. 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:

Otuk Formation Chert is associated with the Otuk Formation of the north central foothills of the Brooks range.  The primary source is the foothills of the Endicott Mountains from the Anaktuvuk River west to the Kuna River area.

 

Projectile point made from this material:


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References: (See Reference Page, Entry Number):

Similar Material:
Commonly made projectile point from this material:
Mesa,  Sluiceaway
Archaeological Context:

It is not thought to have been used in archaeological context due to intense fracturing of the chert.