THE 38TH PARALLEL LINEAMENT AND ITS RELATIONSHIP TO ORE DEPOSITS.HEYL AV.1968; ECON. GEOL.; USA; 1968(2), VOL. 63, NUM. 0001Miscellaneous

THE UPPER MISSISSIPPI VALLEY BASE-METAL DISTRICT.HEYL AV.1968; ORE.DEPOSITS.OF.THE.UNITED.STATES.1933-1967.GRATON-SALES.AIME.NEW-YOR; 1968, VOL. 1, P. 431 A 459Miscellaneous

UPPER MISSISSIPPI VALLEY LEAD-ZINC DISTRICT.HEYL AV.sdIN: 19TH ANNU. INST. LAKE SUPERIOR GEOL. TECH. PROGRAM ABSTR.; MADISON, WIS.; 1973; S.L.; , P. 13 A 14Miscellaneous

SOME ASPECTS OF GENESIS OF STRATIFORM ZINC-LEAD-BARITE-FLUORITE DEPOSITS IN THE UNITED STATES.HEYL AV.1967; ECON. GEOL., MONOGR; USA; 1967, NUM. 0003, P. 20 A 32Miscellaneous

THE 38TH PARALLEL LINEAMENT AND ITS RELATIONSHIP TO ORE DEPOSITSHEYL AV.1972; ECON. GEOL.; U.S.A. ; 1972, VOL. 67, NUM. 0007, P. 879 A 894Serial Issue

SOME ASPECTS OF GENESIS OF STRATIFORM ZINC-LEAD-BARITE-FLUORITE DEPOSITS IN THE MISSISSIPPI VALLEY,UNITED STATES.HEYL AV.1967; TRANS. INST. MING METALLURGY, B; GBR; 1967(11), VOL. 76, NUM. 0732, P. 225 A 226Miscellaneous

SOME ASPECTS OF GENESIS OF ZINC - LEAD - BARITE - FLUORITE DEPOSITS IN THE MISSISSIPPI VALLEY, U.S.A.HEYL AV.1969; TRANS. INST. MIN. METALL., G.B; GBR; 1969(11), VOL. 78, NUM. 0756, P. 148 A 160Miscellaneous

MERCURY AND OTHER TRACE ELEMENTS IN SPHALERITE AND WALLROCKS FROM CENTRAL KENTUCKY, TENNESSEE AND APPALACHIAN ZINC DISTRICTS.JANICE L; HEYL AV.1968; GEOL. SURV. U.S.A., BULL.; USA; 1968, NUM. 1252-00F , P. 1 A 29Miscellaneous

FLUID INCLUSION HOMOGENIZATION TEMPERATURES THROUGHOUT THE SEQUENCE OF MINERAL DEPOSITION IN THE CAVE-IN-ROCK AREA, SOUTHERN ILLINOIS = LES TEMPERATURES D'HOMOGENEISATION DES INCLUSIONS FLUIDES A TRAVERS LA SEQUENCE DE MINERALISATIONS DANS LA REGION DE CAVE-IN-ROCK, SUD ILLINOISCUNNINGHAM CG; HEYL AV.1980; ECON. GEOL.; USA; DA. 1980; VOL. 75; NO 8; PP. 1226-1231; BIBL. 24 REF.; 1 TAB. ; ESQUISSE/ESQUISSE GEOL./TABL./ILL.Article

FLUORITE IN THE UNITED STATES (EXCLUSIVE OF HAWAII). SCALE 1:3168000.WORL RG; VAN ALSTINE RE; HEYL AV et al.1974; U. S. GEOL. SURV., MINER. INVEST. RESOURCES MAP; U.S.A.; DA. 1974; NO MR-60; PP. 1-13; H.T. 1; BIBL. 2 P. 1/2; 1 CART.Serial Issue

ISOTOPIC EVIDENCE FOR THE ORIGIN OF MISSISSIPPI VALLEY-TYPE MINERAL DEPOSITS: A REVIEWHEYL AV; LANDIS GP; ZARTMAN RE et al.1973; GEOL. SOC. AMER., ABSTR. PROGRAMS; USA; DA. 1973; VOL. 5; NO 7; PP. 668-669Article

ISOTOPIC EVIDENCE FOR THE ORIGIN OF MISSISSIPPI VALLEY-TYPE MINERAL DEPOSITS: A REVIEW.HEYL AV; LANDIS GP; ZARTMAN RE et al.1974; ECON. GEOL.; USA; (STABLE ISOT. APPL. PROBL. ORE DEPOSITS. SYMP.; DALLAS; 1973),1974, VOL. 69, NUM. 0006, P. 992 A 1006Miscellaneous

ENVIRONMENT OF ORE DEPOSITION AT THE MEX-TEX DEPOSITS,HANSONBURG DISTRICT,NEW MEXICO,FROM STUDIES OF FLUID INCLUSIONS.ROEDDER E; HEYL AV; CREEL JP et al.1968; ECON. GEOL.; USA; 1968(7), VOL. 63, NUM. 0004, P. 336 A 348Miscellaneous

ENVIRONMEMT OF ORE DEPOSITION AT THE MEX-TEX DEPOSITS,HANSONBURG DISTRICT,NEW MEXICO,FROM STUDIES OF FLUID INCLUSION.ROEDDER E; HEYL AV; CREEL JP et al.1967; ECON. GEOL.; USA; 1967(10), VOL. 62, NUM. 0006Miscellaneous

PALEOAQUIFER SYMPOSIUM.SNYDER FG; RIDGE JD; HEYL AV et al.1972; ECON. GEOL.; USA; 1972, VOL. 67, NUM. 0004, P. 528 A 533Miscellaneous

GEOLOGIC MAP OF THE ELLENBORO QUADRANGLE, GRANT COUNTY, WISCONSIN. 1/24000.WEST WS; WHITLOW JW; BROWN CE et al.1971; U.S. GEOL. SURV., GEOL. QUADRANGLE MAPS; USA; 1971, NUM. 0959Miscellaneous