单词 tectonism 释义 tectonism Geol.|tktnz()m|[f. tectonic a. + ism.]= diastrophism.1949F. J. Pettijohn Sedimentary Rocks vi. 193 The feldspar content [in sands] is primarily an index of crystal [read crustal] instability or tectonism.1960Bull. Amer. Asso...