EINE AMMONITEN-FAUNA AUS DEN SPITI-SCHIEFERN VON MUKTINATH IN NEPAL. (UNE FAUNE D'AMMONITES DES SCHISTES DE SPITI DE MUKTINATH AU NEPAL).HELMSTAEDT H.1969; ZITTELIANA; DEU; 1969(9), NUM. 0001, P. 63 A 88Miscellaneous

MINERAL LINEATION AND "TECTONIC TRANSPORT" IN COLDBROOK ROCKS,BEAVER HARBOUR,NEW BRUNSWICK.(ABSTRACT).HELMSTAEDT H.1967; CANAD. MINERALOGIST; CAN; 1967, VOL. 9, NUM. 002Miscellaneous

A STRUCTURAL ANALYSIS OF BEAVER HARBOUR AREA, CHARLOTTE COUNTY, NEW BRUNSWICK.HELMSTAEDT H.1969; DISSERT. ABSTR. INTERNATION., B; USA; 1969(8), VOL. 30, NUM. 0002Miscellaneous

TYPE A-TYPE C ECLOGITE TRANSITION IN A XENOLITH FROM MOSES ROCK DIATREME-FURTHER EVIDENCE FOR THE PRESENCE OF METAMORPHOSED OPHIOLITES BENEATH THE COLORADO PLATEAUHELMSTAEDT H.sdINTERNATIONAL KIMBERLITE CONFERENCE. 2/1977/SANTA FE NM; USA; DA. S.D.; 3 P.; BIBL. 15 REF.Conference Paper

METAGABBRONORITE FROM DSDP HOLE 334: AN EXAMPLE OF HIGH-TEMPERATURE DEFORMATION AND RECRYSTALLIZATION NEAR THE MID-ATLANTIC RIDGE.HELMSTAEDT H; ALLEN JM.1977; CANADA J. EARTH SCI.; CANADA; DA. 1977; VOL. 14; NO 4 PART. 2; PP. 886-898; ABS. FR.; BIBL. 23 REF.; 9 ILL.Article

POSTMAGMATIC TEXTURES AND FABRICS OF GABBROS AND PERIDOTITES FROM DSDP SITE 334.HELMSTAEDT H.1977; IN: INITIAL REP. DEEP SEA DRILLING PROJ. RIO DE JANEIRO, BRAZIL TO DUBLIN, IRELAND; 1974; WASHINGTON; U.S. GOV. PRINT. OFF.; DA. 1977; VOL. 37; PP. 757-762; BIBL. 5 REF.; 6 ILL.Book Chapter

STRUCTURAL GEOLOGY OF PORTAGE LAKES AREA, BATHURST-NEWCASTLE DISTRICT, NEW BRUNSWICK.HELMSTAEDT H.1971; GEOL. SURV. CANADA, PAPER; CAN; 1971, NUM. 0070-0028, P. 1 A 52Miscellaneous

STRUCTURAL EVOLUTION OF ROCKS OF THE BATHURST-NEWCASTLE DISTRICT, NEW BRUNSWICK (21 O/7).HELMSTAEDT H.1970; GEOL. SURV. CANADA, PAPER; CAN; 1970, NUM. 00A , P. 8 A 9Miscellaneous

SUPERPOSED CRENULATION CLEAVAGES RESULTING FROM PROGRESSIVE DEFORMATIONHELMSTAEDT H; DIXON JM.1980; TECTONOPHYSICS; NLD; DA. 1980; VOL. 66; NO 1-3; PP. 115-126; BIBL. 21 REF.; 7 ILL.Article

A PYROXENE-RICH GARNET-PERIDOTITE INCLUSION IN AN ULTRAMAFIC BRECCIA DIKE AT MOSES ROCK, SOUTHEASTERN UTAH.GAVASCI AT; HELMSTAEDT H.1969; J. GEOPHYS. RES.; USA; 1969(12), VOL. 74, NUM. 0027, P. 6691 A 6695Miscellaneous

DEFORMATIONAL HISTORY OF THE CARIBOU STRATA-BOUND DEPOSITS, BATHURST, NEW BRUNSWICK, CANADA. DISCUSSION AND REPLYHELMSTAEDT H; DAVIS GH.1973; ECON. GEOL.; U.S.A. ; 1973, VOL. 68, NUM. 0004, P. 571 A 577Serial Issue

PRE-CARBONIFEROUS STRUCTURAL HISTORY OF S.E. CAPE BRETON ISLAND, NOVA SCOTIA.HELMSTAEDT H; TELLA S.1973; MARIT. SEDIMENTS; CANADA; DA. 1973; VOL. 9; NO 3; PP. 88-99; BIBL. 1 P. 1/2; 10 ILL.Article

ZONED EPIDOTE NODULES FROM SEDIMENTARY ROCKS OF THE EASTPORT FORMATION, SOUTHWEST NEW-BRUNSWICK.PERCIVAL JA; HELMSTAEDT H.1978; CANAD. J. EARTH. SCI.; CAN; DA. 1978; VOL. 15; NO 7; PP. 1194-1200; ABS. FRE; BIBL. 11 REF.; 6 ILL.Article

GARNET PYROXENITES AND PARTICALLY MELTED ECLOGITES FROM THE SULLIVAN BUTTES LATITE XENOLITH SUITE, PRESCOTT, ARIZONASCHULZE DJ; HELMSTAEDT H.sdINTERNATIONAL KIMBERLITE CONFERENCE. 2/1977/SANTA FE NM; USA; DA. S.D.; 3 P.; 1 ILL.Conference Paper

PETROFABRIC STUDIES OF ECLOGITE, SPINEL-WEBSTERITE, AND SPINEL-LHERZOLITE XENOLITHS FROM KIMBERLITE-BEARING BRECCIA PIPES IN SOUTHEASTERN UTAH AND NORTHEASTERN ARIZONAHELMSTAEDT H; ANDERSON OL; GAVASCI AT et al.1972; J. GEOPHYS. RES.; U.S.A.; 1972, VOL. 77, NUM. 0023, P. 4350 A 4365Serial Issue

COPPER MINERALIZATION NEAR AN INTRA-RAPITAN UNCONFORMITY, NITE COPPER PROSPECT, MACKENZIE MOUNTAINS, NORTHWEST TERRITORIES, CANADAHELMSTAEDT H; EISBACHER GH; MCGREGOR JA et al.1979; CANAD. J. EARTH SCI.; CAN; DA. 1979; VOL. 16; NO 1; PP. 50-59; ABS. FRE; BIBL. 20 REF.; 9 ILL.Article

GEOCHEMISTRY OF VOLCANIC ROCKS FROM THE TETAGOUCHE GROUP BATHURST, NEW BRUNSWICK, CANADA. DISCUSSION. REPLYHELMSTAEDT H; WHITEHEAD RES; GOODFELLOW WD et al.1978; CANAD. J. EARTH SCI.; CAN; DA. 1978; VOL. 15; NO 10; PP. 1680-1683; BIBL. 25 REF.Article

PYROXENE-ILMENITE INTERGROWTHS IN GARNET PYROXENITE XENOLITHS FROM A NEW YORK KIMBERLITE AND ARIZONA LATITES.SCHULZE DJ; HELMSTAEDT H; CASSIE RM et al.1978; AMER. MINERALOGIST; U.S.A.; DA. 1978; VOL. 63; NO 3-4; PP. 258-265; BIBL. 30 REF.; 4 ILL.Article

ELASTIC PROPERTIES OF ECLOGITE XENOLITHS FROM DIATREMES OF THE EAST COLORADO PLATEAU AND THEIR IMPLICATION TO THE UPPER MANTLE STRUCTURE.KUMAZAWA M; HELMSTAEDT H; MASAKI K et al.1971; J. GEOPHYS. RES.; USA; 1971(2), VOL. 76, NUM. 0005, P. 1231 A 1247Miscellaneous

RELATIONS BETWEEN STRUCTURES AND GOLD MINERALIZATION IN CAMPBELL RED LAKE AND DICKENSON MINES, RED LAKE AREA, ONTARIO = RELATIONS ENTRE LA TECTONIQUE ET LES ACCUMULATIONS D'OR DANS LES MINES DE CAMPBELL RED LAKE ET DICKENSON, REGION DE RED LAKE, ONTARIORIGG DM; HELMSTAEDT H; PYE EG ED et al.1981; ONT. GEOL. SURV. MISC. PAP.; ISSN 0704-2752; CAN; DA. 1981; NO 97; PP. 111-127; 3 TAB. ; ILL.Conference Paper

Eclogite-facies ultramafic xenoliths from Colorado Plateau diatreme breccias : comparison with eclogites in crustal environments, evaluation of the subduction hypothesis, and implications for eclogite xenolithes from diamondiferous kimberlites = Enclaves ultrabasiques de faciès éclogite des brèches du diatrème du Plateau du Colorado : comparaison avec les éclogites de milieux crustaux : évaluation de l'hypothèse de la subduction et implications relatives aux enclaves d'éclogites des kimberlites diamantifèresHELMSTAEDT, H; SCHULZE, D.J.Eclogites and eclogites-facies rocks. 1988, pp 387-450Book Chapter

Deformation and intrusion in deeply buried rocks : Creep, high-angle ductile and brittle shear, and congruent shear arraysWILSON, B.C; HELMSTAEDT, H; DIXON, J.M et al.International conference on basement tectonics. 1992, pp 83-93Conference Proceedings

Zoned sodic amphibole: petrologic indicator of changing pressure and temperature during tectonism in the Bathurst Area, New Brunswick, Canada = Amphibole sodique zonée: indicateur pétrologique d'un changement de pression et de température pendant les phases tectoniques dans la région de Bathurst, Nouveau Brunswick, CanadaTRZCIENSKI, W. E. JR; CARMICHAEL, D. M; HELMSTAEDT, H et al.Contributions to mineralogy and petrology. 1984, Vol 85, Num 4, pp 311-320, issn 0010-7999Article

Geology and chemistry of the Early Proterozoic Purtuniq Ophiolite, Cape Smith Belt, Northern Quebec, CanadaSCOTT, D.J; ST ONGE, M.R; LUCAS, S.B et al.Ophiolite conference. 1991, pp 817-849Conference Paper