Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Historic Sanctuary of Machu Picchu' has mentioned 'Obsidian' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| For example, Bingham found unmodified obsidian nodules at the entrance gateway. | WIKI |
| In the 1970s, Burger and Asaro determined that these obsidian samples were from the Titicaca or Chivay obsidian source, and that the samples from Machu Picchu showed long-distance transport of this obsidian type in pre-Hispanic Peru. | WIKI |