morphological vs tectonic

morphological

adj
  • Of, or pertaining to, morphology. 

tectonic

adj
  • Of or relating to construction or to architecture 

  • Structural 

  • Of, relating to, or caused by large-scale movements of the Earth's (or a similar planet's) lithosphere 

  • momentous, utter, vast 

How often have the words morphological and tectonic occurred in a corpus of books? (source: Google Ngram Viewer )