On my blog I've posted the first of a series of higher-resolution analyses of the European admixture in Chinchorro DNA. Here's an excerpt from the post:
Higher-resolution K = 4 analysis of the European admixture in Chinchorro DNA
Below is a plot for a higher-resolution K = 4 admixture analysis that includes a Chinchorro mummy sample from Chile dated to 3972–3806 BC. This analysis uses a much larger number of transversion SNPs for all samples than my earlier admixture analyses. While most of my admixture analyses have used 1,067 transversion SNPs for the Chinchorro sample, and my previous high-resolution admixture analyses used 2,055 transversion SNPs for the sample, this analysis uses 26,982 transversion SNPs for the sample.
Higher-resolution K = 4 analysis of the European admixture in Chinchorro DNA