StructureSmall Granite Pod Surrounded By Acteres Shale, Siltstone. Ne Trending Tert Fractures In Area. Tert Basalts Cap Mesas Locally Large Out Crop Extent Of 1.2 By Caxe Creek Quartz Monzonite Begins 1 1/2 Miles S. Of Mine, Granitic Intrusion Into Prec Sediments. Intrusive Outcrop Is 1/3 Mile In Length, E-W Elongated, And 1/6 Mile Wide. Mine Is At West End Of Intrusion