| Structure: | Diabase Outcrops Throughout Area, Including W And N Of Sediments Where Mine Is Located. Martin Limestone Fault Block Is Surrounded By Troy Quartzite, Faults And Sediments Strike Ne., In The Mine Two Steeply Dipping Mineralized Faults That Crop Out Near The Crest Of Buffalo Hill Were Developed. The Main Fault Probably Is The East Branch; It Was Formed Before The Intursion Of Diabase, And The Block To The Southeast Was Relatively Depressed Faults Strike Ne, See Plate 1, Pp 342 For Details. |