The standard textbook for studying language contact, as far as I know, was Language Contact, Creolization, and Genetic Linguistics, by Sarah Grey Thomason & Terrence Kaufman, UCP (1991, c1988). The reader will surely recognize many of this text’s proposals of language contacts in my books.
Here are some relevant excerpts from the Introduction/Summary of chapter 1 (emphasis mine, some stylistic changes for clarity):
The starting point for our theory of linguistic interference is this: it is the sociolinguistic history of the speakers, and not the structure of their language, that is the primary determinant of the linguistic outcome
… Read the rest “Basic framework of language contact-induced change”
Recent paper (behind paywall) Marmot incisors and bear tooth pendants in Volosovo hunter-gatherer burials. New radiocarbon and stable isotope data from the Sakhtysh complex, Upper-Volga region, by Macānea, Nordqvist, and Kostyleva, J. Archaeol. Sci. (2019) 26:101908.
Interesting excerpts (emphasis mine):
The Sakhtysh micro-region is located in the Volga-Oka interfluve, along the headwaters of the Koyka River in the Ivanovo Region, central European Russia (Fig. 1). The area has evidence of human habitation from the Early Mesolithic to the Iron Age, and includes altogether 11 long-term and seasonal settlements (Sakhtysh I–II, IIa, III–IV, VII–XI, XIV) and four artefact scatters (sites
… Read the rest “Volosovo hunter-gatherers started to disappear earlier than previously believed”
The final paper on Indo-Iranian peoples, by Narasimhan and Patterson (see preprint), is soon to be published, according to the first author’s Twitter account.
One of the interesting details of the development of Bronze Age Iberian ethnolinguistic landscape was the making of Proto-Iberian and Proto-Basque communities, which we already knew were going to show R1b-P312 lineages, a haplogroup clearly associated during the Bell Beaker period with expanding North-West Indo-Europeans:
From the Bronze Age (~2200–900 BCE), we increase the available dataset from 7 to 60 individuals and show how ancestry from the Pontic-Caspian steppe (Steppe ancestry) appeared throughout Iberia
… Read the rest “Aquitanians and Iberians of haplogroup R1b are exactly like Indo-Iranians and Balto-Slavs of haplogroup R1a”