Esper

Esper Signius Larsen

Esper
#147,312
Most Influential Person Across History

American mineralogist

Esper Signius Larsen's Academic­Influence.com Rankings

Esper Signius Larsen
Earth Sciences
#1937
Historical Rank
Mineralogy
#131
Historical Rank
earth-sciences Degrees
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  • Earth Sciences

Why Is Esper Signius Larsen Influential?

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According to Wikipedia, Esper Signius Larsen, Jr. 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 was named after him.

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