| 释义 |
sodipotassic, a. Geol.|ˌsəʊdɪpəˈtæsɪk|
Also sodo- |ˌsəʊdəʊ-|.
[Blend of sodic and potassic adjs.]
Containing both sodium and potassium in appreciable quantities.
In quot. 1902 used to denote a specified compositional range in the classification scheme of Cross, Iddings, Pirsson, and Washington.
1902Jrnl. Geol. X. 596 The minerals of the sodalite group are only present in the sodic or sodipotassic Sub⁓rangs of Classes I, II and III. 1927S. J. Shand Eruptive Rocks ix. 163 A typical example of the Quincy granite gave quartz 33, sodipotassic felspar 55, and ægirine and riebeckite 10 per cent. 1974T. G. Sahama in H. Sørensen Alkaline Rocks 98/1 The rocks are mainly potassic to perpotassic, but sodopotassic to sodic varieties are known among the jumillites and fortunites. |