@article {11113,
	title = {Geochemical Fingerprinting of Dacite Tool Stone from the Punchaw Lake Village Site (FiRs-1), Nechako Plateau, British Columbia: Implications for Exchange and Transport},
	volume = {40},
	year = {2016},
	pages = {095-125},
	abstract = {<p>A comprehensive (forty seven elements) geochemical data set for eighteen artifacts strategically selected after macroscopic examination of approximately six thousand lithic artifacts from the Punchaw Lake Village Site (FiRs-1) on the Nechako Plateau, in the north-central interior of British Columbia (B.C.), shows that dacite was the dominant lithology used in stone tool manufacture. The macroscopic descriptions, plus exploratory statistics utilizing all geochemical data, reveal at least three geochemical artifact groups (A, B, and D). Differences between groups are consistent with derivation from three Paleogene caldera complexes in the central interior. Comparisons with tool stone (dacite) from the southern interior of B.C. show that, although there is little geochemical overlap, the compositional variation at Punchaw Lake is similar to what is seen for all of the southern interior. Geochemical group A artifacts from Punchaw Lake (eight artifacts, 41 percent) resemble, but do not overlap with, available geochemical data for Cache Creek/Arrowstone Hills dacite (approximately 300\&nbsp;km south) in the south-central interior, suggesting derivation from a geologic site/caldera between Punchaw Lake and Cache Creek, but a Cache Creek origin cannot be ruled out. Geochemical group A artifacts have textural traits leading to superior \&ldquo;workability\&rdquo; (e.g.,\&nbsp;finer-grained) compared to the two, less-abundant, geochemical groups (B and D). Group A dominance implies that \&ldquo;workability\&rdquo; was as important as proximity to a geological source in determining the abundance of dacite types at Punchaw Lake. Two group B samples (11 percent of artifacts) are very similar to dacite artifacts from Smith Creek and Princeton River in the southern interior suggesting five hundred kilometers of transport. Previous work on obsidian and valuable artifacts at Punchaw Lake supports exchange/transport for great distances, but dacite tool stone may be largely of local/regional (central interior) derivation. Hypothesis testing requires data for dacite artifacts from Quaternary, glacial outwash fields, associated with Paleogene caldera complexes in the central interior.</p>},
	author = {W. S. Lorenz Br{\"u}chert and John D. Greenough}
}
