2017-03-10 10:58:56.0 [tstevens] update Definition (Elements that constitute less than 0.1 wt. % of a rock as determined in a chemical analysis.); update Definition (Philpotts, Anthony R.(1990) Principles of Igneous and Metamorphic Petrology, 498 pp., Prentice Hall, New Jersey, USA.);
2013-03-07 08:39:08.0 [tbs1979] Move Concepts add broader relation (TRACE ELEMENTS [c3c898d7-14db-4536-bd86-f8f222167195,64121] - ELEMENTS [da22144c-634d-4007-aba9-e636a9f2fa3f,83143]); delete broader relation (null);
Elements that constitute less than 0.1 wt. % of a rock as determined in a chemical analysis.
TRACE ELEMENTS
ELEMENTS