Amies, A.C. <br/><br/>
An Intrusion of Porphyrite near Waihao Forks, South Canterbury 

 - 271 - 279 
 - Proceedings of the Ninth National Conference on Clays and Clay Minerals, Lafayette, Indiana, October 5-8, 1960 .
<br/><br/><label>Index Terms--Genre/Form: </label>--Conferences - Meetings