| Geology |
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| • | Adam
Sedgwick, was one of a group of scientist |
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| that
defined the geological time periods that we |
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| are
familiar with today. His work in
collaboration |
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| with Roderick
Impey Murchison, carried out in |
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| England,
Scotland and Wales, described the upper |
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| Cambrian
(Latin for Wales) and the lower Silurian |
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| (named
for a Celtic tribe). Sedgwick shared
a |
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| mutual respect
for Charles Darwin. |
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