1. 
   Autointrusion
   The injection of magma into fissures of its earlier crystallized rock.
   Found op http://www.quartznall.co.uk/azhealthguide.htm
   
   
2. 
   autointrusion
   autointrusion In geology, a process wherein the residual liquid of a differentiating magma is drawn into rifts formed in the crystal mesh at a late stage by deformation of unspecified origin.
   Found op http://www.wordinfo.info/words/index/info/view_unit/2193/
   
   

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