Marquette Iron District

JAMES, H. L., 1955, ZONES REG. METAMORPHISM. IN N. MICH.; G. S. A. BULL., VOL. 66, P. 1455-1488.THE LAKE SUPERIOR IRON ASSOC., 1938, LAKE SUPERIOR IRON ORES.THE LAKE SUPERIOR IRON ASSOC., 1952, LAKE SUPERIOR IRON ORES.GRATON-SALES VOL. A. I. M. E., THE MARQUETTE DISTRICT: ORE DEPOSITS OF THE U. S., 1933-1967, P. 508-517CANNON, W.F., POWERS, S.L., AND WRIGHT, N.A., 1978, COMPUTER-AIDED ESTIMATES OF CONCENTRATING-GRADE IRON RESOURCES IN THE NEGAUNEE IRON-FORMATION, MARQUETTE DISTRICT, MICHIGAN: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1045, 21 P.D'ALIGNY, HENRY, 1864, REPORTS ON THE VALUE OF THE COMPANY'S LANDS LOCATED IN THE IRON REGION OF LAKE SUPERIOR, COUNTY OF MARQUETTE, STATE OF MICHIGAN: BOSTON, WRIGHT AND POTTER, PRINTERS, ST. MARY'S CANAL MINERAL LAND COMPANY, 54 P. (GIVES AN EARLY SUMMARY OF RESULTS OF EXPLORATION AND ACKNOWLEDGMENT OF THE 'INEXHAUSTIBLE' IRON RESOURCES OF THE RANGE.)IRON COMPANIES HAVE MADE EXTENSIVE STUDIES OF AREA . MOST ALL OF THIS DISTRICT MAPPED FROM 1940 - 1973 AT 1:24,000 SCALE. TOO MANY GEOLOGISTS TO MENTION INDIVIDUALLY1). GRATON-SALES, VOL. A.I.M.E., 1968, P. 508.CANNON AND OTHERS (1978).