PRIMARY ROCKS
\pɹˈa͡ɪməɹi ɹˈɒks], \pɹˈaɪməɹi ɹˈɒks], \p_ɹ_ˈaɪ_m_ə_ɹ_i ɹ_ˈɒ_k_s]\
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[L.] In the early days of Geol., = non-fossiliferous, opposed to Secondary or fossiliferous. Now the Palaeozoic are = Primary, being the first met with in the ascending scale. The actual primitive rocks are not supposed to exist now, having been all worn away or altered.
By Henry Percy Smith
Word of the day
Procollagen Proline Dioxygenase
- mixed-function oxygenase that catalyzes hydroxylation prolyl-glycyl-containing-peptide, usually in protocollagen, hydroxyprolylglycyl-peptide. The enzyme utilizes molecular oxygen with a concomitant oxidative decarboxylation of 2-oxoglutarate to succinate. EC 1.14.11.2.