# Clair Cameron Patterson

> American chemist and geochemist (1922–1995)

**Wikidata**: [Q289502](https://www.wikidata.org/wiki/Q289502)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Clair_Patterson)  
**Source**: https://4ort.xyz/entity/clair-cameron-patterson

## Summary
Clair Cameron Patterson was an American chemist and geochemist (1922–1995) best known for his groundbreaking work in isotopic analysis, particularly his 1956 discovery of the age of the Earth using lead-lead dating. His research provided critical evidence for the age of the solar system and revolutionized geochemistry.

## Biography
- Born: June 2, 1922
- Nationality: United States
- Education: Bachelor’s degree from Grinnell College (1943), Ph.D. from the University of Chicago (1948)
- Known for: Pioneering isotopic dating techniques to determine the age of the Earth
- Employer(s): University of Chicago, University of Iowa
- Field(s): Geochemistry, Isotopic Analysis

## Contributions
- **Lead-Lead Dating (1956)**: Developed a method to determine the age of the Earth by analyzing lead isotopes in meteorites, establishing the solar system’s age at 4.55 billion years.
- **Clair C. Patterson Award**: Established in 1972 to honor outstanding contributions to environmental geochemistry.
- **Honorary Doctorate**: Received from the University of Paris-VII (France) for his scientific achievements.
- **Awards**: Recipient of the V. M. Goldschmidt Award (1972) and the J. Lawrence Smith Medal (1988) for his work in geochemistry and meteoritics.

## FAQs
**What was Clair Cameron Patterson’s most famous discovery?**
Patterson’s most famous work was his 1956 lead-lead dating method, which provided the first precise estimate of the Earth’s age at 4.55 billion years, based on isotopic analysis of meteorites.

**Where did Clair Cameron Patterson study?**
He earned his bachelor’s degree from Grinnell College (1943) and his Ph.D. from the University of Chicago (1948).

**What awards did Patterson receive?**
He received the V. M. Goldschmidt Award (1972), the J. Lawrence Smith Medal (1988), and an honorary doctorate from the University of Paris-VII.

**How did Patterson influence geochemistry?**
His isotopic dating techniques became foundational in geochemistry, enabling precise age determinations for rocks and meteorites and advancing our understanding of Earth’s formation.

## Why They Matter
Clair Cameron Patterson’s work fundamentally reshaped geochemistry by introducing precise isotopic dating methods. His discovery of the Earth’s age using lead-lead dating provided critical evidence for the solar system’s formation and set a standard for geological chronology. His research influenced generations of scientists and remains a cornerstone of planetary science. The Clair C. Patterson Award, established in his honor, continues to recognize excellence in environmental geochemistry.

## Notable For
- **Pioneer of Isotopic Dating**: Developed the lead-lead dating method, revolutionizing geological chronology.
- **Estimated Earth’s Age**: First precise calculation of the Earth’s age at 4.55 billion years.
- **Founder of the Patterson Award**: Established the Clair C. Patterson Award (1972) for environmental geochemistry.
- **Honorary Doctorate**: Recognized by the University of Paris-VII for his scientific contributions.
- **Recipient of Prestigious Awards**: V. M. Goldschmidt Award (1972) and J. Lawrence Smith Medal (1988).

## Body
### Early Life and Education
- Born on June 2, 1922, in the United States.
- Earned a bachelor’s degree from Grinnell College in 1943.
- Completed his Ph.D. at the University of Chicago in 1948, where he began his career in geochemistry.

### Career and Research
- **University of Chicago**: Conducted groundbreaking research in isotopic analysis, focusing on lead isotopes in meteorites.
- **University of Iowa**: Later affiliated with the University of Iowa, where he continued his work in geochemistry.
- **Lead-Lead Dating (1956)**: Developed a method to determine the age of the Earth by analyzing lead isotopes in meteorites, establishing the solar system’s age at 4.55 billion years.
- **Clair C. Patterson Award**: Established in 1972 to honor outstanding contributions to environmental geochemistry.
- **Honorary Doctorate**: Received from the University of Paris-VII (France) for his scientific achievements.

### Awards and Recognition
- **V. M. Goldschmidt Award (1972)**: Recognized for his work in geochemistry.
- **J. Lawrence Smith Medal (1988)**: Awarded for his investigations of meteoric bodies.
- **National Academy of Sciences Membership**: Affiliated with the National Academy of Sciences for his contributions to science.

### Legacy
- **Foundational Work in Geochemistry**: His isotopic dating techniques remain essential in geological research.
- **Influence on Planetary Science**: His methods provided critical evidence for the age of the solar system.
- **Award Naming**: The Clair C. Patterson Award continues to honor excellence in environmental geochemistry.
- **Honorary Recognition**: Received an honorary doctorate from the University of Paris-VII for his scientific contributions.

## References

1. [Source](http://www.southeastpolk.org/vimages/shared/vnews/stories/541b0f9112f27/2014_HoH_Inductees.pdf)
2. [Source](http://pdf.oac.cdlib.org/pdf/caltech/pattersc.pdf)
3. Find a Grave
4. [Source](https://tylerprize.org/laureates/past-laureates/)
5. [Source](https://www.geochemsoc.org/honors/awards/vmgoldschmidtaward)
6. [Source](https://web.archive.org/web/20160527143030/http://www.nasonline.org/programs/awards/j-lawrence-smith-medal.html)
7. [Source](https://fr.u-paris.fr/actualites/clair-cameron-patterson)
8. Virtual International Authority File
9. [Source](https://www.nytimes.com/1995/12/08/us/clair-c-patterson-who-established-earth-s-age-is-dead-at-73.html)
10. SNAC
11. Freebase Data Dumps. 2013
12. Quora