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microgeology
microgeology n.
Brit. 
/ˌmʌɪkrə(ʊ)dʒɪˈɒlədʒi/
, /ˌmʌɪkrə(ʊ)dʒɪˈɒlədʒi/U.S. /ˌmaɪkroʊdʒiˈɑlədʒi/
/ˌmaɪkroʊdʒiˈɑlədʒi/ΚΠ
1857 Amer. Jrnl. Sci. 74 434 Micro-geology of Ehrenberg.
1941 Bull. Amer. Assoc. Petroleum Geologists 25 1219 It is true..that Ehrenberg as early as 1854 employed the term ‘microgeology’ in essentially the same sense as we now use the word micropaleontology.
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