Determining the geochemical variability of fine-grained basalt sources/quarries for facilitating prehistoric interaction studies in Polynesia

Weisler, Marshall, Bolhar, Robert, Charleux, Michel, Faith, J. Tyler, Feng, Yue-Xing and St. Pierre, Emma (2016) Determining the geochemical variability of fine-grained basalt sources/quarries for facilitating prehistoric interaction studies in Polynesia. Archaeology in Oceania, 51 2: 158-167. doi:10.1002/arco.5088


Author Weisler, Marshall
Bolhar, Robert
Charleux, Michel
Faith, J. Tyler
Feng, Yue-Xing
St. Pierre, Emma
Title Determining the geochemical variability of fine-grained basalt sources/quarries for facilitating prehistoric interaction studies in Polynesia
Journal name Archaeology in Oceania
ISSN 1834-4453
0003-8121
Publication date 2016-03-09
Year available 2016
Sub-type Article (original research)
DOI 10.1002/arco.5088
Open Access Status Not Open Access
Volume 51
Issue 2
Start page 158
End page 167
Total pages 10
Place of publication Richmond, VIC, Australia
Publisher Wiley-Blackwell Publishing Asia
Collection year 2017
Language eng
Abstract Polynesian adze sourcing studies that rely on geochemical analyses to assign distant artefacts to a source or quarry have been undertaken for more than three decades. Understanding intra-source geochemical variability is essential for robust artefact source assignments, yet these data are not available for most quarries. We provide a seven-step protocol for sampling source rocks and associated artefacts at quarries and, using the large Eiao quarry (Marquesas Islands) as a case study, demonstrate the efficacy of the protocol. A "sampling to redundancy" statistical procedure documents that ∼7-11 samples are required to capture the variability of 10 oxides, 49 trace elements and seven isotope ratios. We advocate using the broadest array of fully quantitative geochemical values to characterise quarries and sources that will facilitate current and future sourcing studies. In the biological sense, this is analogous to the formal description of a holotype. Quarry samples should also be collected and curated to enable research when new protocols are established and more precise and accurate geochemical techniques develop.
Keyword Basalt quarries
Geochemistry
Petrography
Polynesia
Prehistoric interaction
Sampling to redundancy
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Earth Sciences Papers
School of Social Science Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 1 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 1 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 22 Mar 2016, 01:10:23 EST by System User on behalf of Learning and Research Services (UQ Library)