New open access preprint (based on some old work ๐ ) looking at the "Stotfield Cherty Rock" (a Triassic silcrete/calcrete) which turns out to have been used in archaeological tool-making... It looks fabulous under 254nm UV light - so much going on in these rocks. ๐ค ๐คฉ More here:
https://eartharxiv.org/repository/view/9450/
#Geology #Archaeology #Lithics #Duricrust #Calcrete #Silcrete #Lossiemouth #MorayFirth #Sedimentary