Trace element analysis of obsidian artifacts from the Andes
Excavations (Archaeology)Obsidian implementsObsidianCompositionAntiquitiesTrace elementsIndians of South America
"In this study, obsidian found at 94 archaeological sites in Peru and Bolivia was analyzed to determine its trace element composition"--P. 4.
Writing a summary for young readers…
For young readers
Book data: Open Library