Gap Nickel Mine

KNOPF,E.B.,AND JONAS,A.J.,1929,GEOLOGY OF MCCALLS FERRY-QUARDISTRICT USGS BULLITIN 790.KEMP,JF 1895,THE NICKEL MINE AT LANCASTER GAP,LANCASTER COUNAND THE PYRRHOTITE DEPOSITS AT ANTHONY'S NOSE ON THE HUDSON:INST.OF MINING ENGINEERS,TRANS.24BARLOW,A.E.,1901,GEOLOGICAL SURVEY OF CANADA,ANNUAL REPORT,VPP.174-176.FRAZER,P,JR.1880,THE GEOLOGY OF LANCASTER CO.PA.GEOL SURVEYCAMPBELL,W.,AND KNIGHT,C.W.,1907,ON THE MICROSTRUCTURES OF NIFEROUS PYRRHOTITES: ECON.GEOL. 2,PP.350-366MOYD,L S 1942, EVIDENCE OF SULPHIDE-SILICATE IMMISCIBILITY ANICKEL MINE,LANCASTER COUNTY,PENNSYLVANIA:AMER MINERALOGIST,PP.389-393PHEMISTER,T C,1924 A NOTE ON THE LANCASTER GAP MINE,LANCASTETY,PENNA.:JOURNAL OF GEOLOGY VOL.32,PP 498-510SPEER,J.A.AND MARTIN,E C,1974,VIOLARITE FROM THE GAP NICKELTHE MINERALOGICAL RECORD,VOL5,NO.5 PP.209-210SOCOLOW,A A,1974,GEOLOGIC INTERPRETATION OF AEROMAGNETIC MAPSOUTHEASTERN PENNA.,PA.GEOL.SURVEY,4TH SERIES, IC 77.ROSE A W,1970,ATLAS OF PENNSYLVANIA'S MINERAL RESOURCES,PARTMETAL MINES AND OCCURRENCES IN PENNSYLVANIA,PA.GEOL SUR 4THSPERSONAL COMMUNICATION-ROBERT SMITH,PA GEOL SURVEY,1974ENGINEERING AND MINING JOURNAL,DECEMBER,1969,"CANADIAN DATAGRAPHS TO SPEED MINE FEASIBILITY STUDIES".US BUMINES WAR MINERALS REPORT REGIONAL FILE NO E-369