1879 - 1961
Esper Signius Larsen
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Esper Signius Larsen is a member of the following lists: University of California, Berkeley alumni, 1961 deaths and People from Astoria, Oregon.
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Details
| Birthday |
14th March, 1879
|
| Died |
8th March, 1961
|
| Zodiac Sign |
Pisces
|
Esper Signius Larsen, Jr. (14 March 1879 – 8 March 1961) was an American geologist and petrologist who contributed to techniques for age estimation using the lead-uranium ratio or Larsen method and the petrological study of non-opaque minerals using optical microscopy techniques. He served as a professor of petrology at Harvard University from 1923 to 1949. The mineral Esperite (earlier called Calcium Larsenite) was named after him.
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