| Reference | {Deposit:: ACKERMAN, J.M., 1992, MAIN PASS - FRASCH SULFUR MINE AND OIL AND GAS DEVELOPMENT, IN WESSEL, G.R., AND WIMBERLY, B.H., EDS., NATIVE SULFUR--DEVELOPMENTS IN GEOLOGY AND EXPLORATION: LITTLETON, COLO., SOCIETY OF MINING ENGINEERS, P. 73-80.}{Deposit:: INDUSTRIAL MINERALS, 1990, ANNUAL REPORT HIGHLIGHTS: NO. 272, P. 20-21.}{Deposit:: HARBEN, P.W., AND BATES, R.L., 1984, GEOLOGY OF THE NONMETALLICS: NEW YORK, METAL BULLETIN INC., 392 P.}{Deposit:: INDUSTRIAL MINERALS, 1989, WORLD OF MINERALS: NO. 257, P. 21.}{Deposit:: EDWARDS, A.F., AND OTHERS, 1992, THE GEOLOGY OF MAIN PASS SULPHUR AND OIL DEPOSIT: SOCIETY OF MINING ENGINEERS PREPRINT 92-254, 14 P.}{Deposit:: INDUSTRIAL MINERALS, 1994, FREEPORT CLOSES CAMINADA AS MAIN PASS REACHES CAPACITY, IN WORLD OF MINERALS: NO. 317, P. 19-20.}{Production:: INDUSTRIAL MINERALS, 1994.} |