INAA of pre-contact basalt quarries on the Samoan Island of Tutuila: a preliminary baseline for an artifact-centered provenance study

Sāmoan artefact provenance reveals limited artefact transfer within and beyond the archipelago

“…Recent investigations (Johnson et al . ; Winterhoff et al . ) have been able to show that geochemical variation across the major volcanic provinces of Tutuila, and also within particular valleys, can be distinguished.…”

“…; Johnson et al . ; Moore & Kennedy ; Winterhoff et al . ) and admittedly common‐sense distance assessments to identify non‐local artefacts.…”

Diet and seasonality in the Lower Pecos: evaluating coprolite data sets with cluster analysis

“…The number of clusters was determined with reference to a scree plot of the agglomeration coefficients as well as the dendrogram produced in SPSS. These clusters were then assessed with Canonical Discriminant Analysis in SPSS-PC, commonly used for a similar purpose in Instrumental Neutron Activation Analysis data sets (Baxter, 1994;Glascock, 1992;Johnson et al, 2007). This approach serves three purposes; (1) it evaluates the assigned group membership of each specimen; (2) it identifies the important variables in defining clusters; and (3) it provides a visual representation of cluster association.…”

Investigating the production and distribution of plain ware pottery in the Samoan archipelago with laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS)

“…Specifically, Johnson et al (2007) found that basalt rock samples collected from known prehistoric quarries on Tutuila differentiated by quarry using Instrumental Neutron Activation Analysis (INNA). LA-ICP-MS is a microprobe technique determined to be more appropriate than INNA for this study for three reasons.…”