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Story summary
- Researchers in Brazil identified the first tektite field in South America, the sixth globally, with no crater identified.
- Tektites are rare glass-like objects formed when meteorite impacts melt silica-rich rocks.
- The field spans more than 900 kilometers and isotopic dating places the tektites at 6.3 million years old.
- Geologist Álvaro Crósta notes the discovery could indicate tektites are more common than believed.
