Guatemala Health Videos This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

• News
• Research
• Blogs
• Podcasts
• Video
• Funding
• Alerts
• Clinical Trials
• Forums

Obsidian blade provides valuable clues to past trade networks
This obsidian (volcanic glass) blade from the ancient Mayan port site Vista Alegre provides valuable clues to past trade networks. Based on its chemical composition, researchers traced the source of the obsidian to the highlands of Guatemala. Other obsidian materials at Vista Alegre came from as ...This is an NSF Multimedia Gallery item. (Source: NSF Multimedia Gallery)
Source: NSF Multimedia Gallery - January 4, 2023 Category: Science Source Type: video