biography
| sex:
| male
|
| lived:
| (1837–1923)
|
| biography:
| Geologist, born in Owego, New York, USA. He expanded his childhood interest in geology by studies and travels in Europe (1854–60). He investigated Arizona's silver mines (1860), then embarked on frequently hazardous geological expeditions to E Asia (1861–5). He taught mining at Harvard (1866–73) while concurrently exploring L Superior mineral deposits (1866–77). After directing various geological surveys (1879–90), he investigated the geology and archaeology of C Asia (1903–4). He made major contributions to the fields of coal and mineral mining, glaciology, and rock disintegration. |
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