Tag: obsidian
By Corey Cookson
October 1, 2020
Top 10 Sites of 2019!
We are heading into the fall of 2020 and the season crunch is in full swing! We have been pretty busy, despite the challenges of COVID-19, and have found quite a few new and exciting sites. This makes us recall the sites of 2019! It was hard to make time to write up what we
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By Brian Leslie
April 15, 2020
No volcanoes in Alberta, so where does the Obsidian come from?
When working close to an obsidian source (i.e. volcanoes), archaeologist will regularely find obsidian tools and debitage. However, in the boreal forests of northern Alberta, obsidian is a rare find indeed. So to find any evidence of it at all is pretty significant. Volcanic glass, or obsidian, is one of the sharpest naturally occurring materials
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By Timothy Allan
March 19, 2020
Sourcing with pXRF (portable X-Ray Fluorescence)
“Sourcing” is the study of associating artifacts with their geologic origin in order to infer human transport of materials. This field of research has revealed networks of trade and exchange among indigenous peoples in pre-contact times. But how do researchers figure out the actual source? One method is with Portable X-Ray Fluorescence (pXRF) analysis. These
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By Corey Cookson
April 4, 2019
Where does the Obsidian we find come from?
Obsidian is a volcanic glass that was used by pre-European contact people all over North America. Known for its natural sharpness, ancient peoples sought the material for making tools for cutting and slicing. Additionally, it is easier to flintknap than the harder and more readily available materials local to Alberta. As many of our readers
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By Corey Cookson
April 24, 2018
Tree Time’s 2017 Top Five Sites
Now that all the reporting is done, we thought it was a good time to look back on some of the exciting sites we worked on from the past year. We usually find over 100 sites every year but these sites stand out either because we found interesting artifacts or the site is unique compared
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