University Place

Zircons Are Forever

Special | 59m 49s | Video has closed captioning.

John Valley, Professor, Department of Geoscience, UW-Madison, joins “University Place Presents” host Norman Gilliland to discuss his discovery of the oldest material ever found on earth: a 4.4 billion-year-old zircon mineral found in the Jack Hills of Western Australia.

Aired: 05/21/14

Rating: TV-G

Problems Playing Video? | Closed Captioning

University Place is a local public television program presented by PBS Wisconsin.

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