|Figure One. The artifact inspiring the SHADOWS ON THE TRAIL QUADRILOGY. |
Side B of 4.1 inch long discoidal biface made from Alibates Chert. The original
"down" position for this artifact.
Figure Two. The artifact inspiring the SHADOWS ON THE TRAIL
When I found this prehistoric tool, I stared at it for some time, wondering about the ancient people who made it. How did this stone tool end up all the way to a prehistoric campsite in northern Colorado, five hundred miles to the north of the prehistoric rock quarry? Who actually made it? What was he or she like? What happened on its journey from Texas to northern Colorado? Since it was impossible for me to ask the person who made it, I wrote my own version of the journey in the SHADOWS ON THE TRAIL QUADRILOGY.
Figure Three. The Exciting Conclusion. CLICK to ORDER.
What happened to the stone tool between the time it was lost around plus 10,700 years ago and the time I recovered it in 2010? Obviously, it spent some time buried, otherwise, someone else or a cow or horse hoof would have found it and shattered it into ten thousand pieces. But, what is that white stuff covering the top of it in Figure one?
|Figure Four. Side A of 6.5 inch long ultrathin knife form, made |
from obsidian. Side A shows little pedogenic carbonate.
Pedogenic carbonation occurs when rainwater and carbon dioxide in the atmosphere mix to form diluted carbonic acid in the soil. This weak acidic water dissolves minerals in the soil, yielding water-soluble calcium carbonate, bicarbonate, and other salts capable of precipitating onto other rocks and minerals if the ground water conditions are suitable. See Figures Four and Five.
Figure Five. Side B of 6.5 inch long ultrathin knife form
showing extensive pedogenic carbonate. This indicates the
original down position of the artifact.
|My newest book in the prehistoric adventure series CROW and the CAVE and |
the original book where it all began, SHADOWS on the TRAIL.
Where It All Began - CLICK TO ORDER