chasm vs schism

chasm

noun
  • A deep, steep-sided rift, gap or fissure; a gorge or abyss. 

  • A large difference of opinion. 

schism

noun
  • A split or separation within a group or organization, typically caused by discord. 

  • a split within Christianity whereby a group no longer recognizes the Bishop of Rome as the head of the Church, but shares essentially the same beliefs with the Church of Rome. In other words, a political split without the introduction of heresy. 

  • A formal division or split within a religious body. 

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