Alkaline Magmatism of the Earth and related strategic metal deposits

158 Pages·2015·20.78 MB·English

Alkaline Magmatism of the Earth
and related strategic metal deposits

Proceedings of XXXII
International Conference

7-14 August 2015
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VERNADSKY INSTITUTE OF GEOCHEMISTRY AND ANALYTICAL CHEMISTRY OF
RUSSIAN ACADEMY OF SCIENCES (GEOKHI RAS)

GEOLOGICAL INSTITUTE OF KOLA SCIENCE CENTRE OF RUSSIAN ACADEMY OF
SCIENCE (GI KSC RAS)

CRITICAL METALS WORKSHOP. INTERNATIONAL NON-COMMERCIAL
ORGANIZATION

With financial support of RSF, RFBR RAS and IAGOD

Alkaline Magmatism of the Earth and Related
Strategic Metal Deposits

Proceedings of XXXII International Conference

7-14 August 2015

Apatity
3
УДК 552.3:[553.49+553.81]
ББК 26.3

Editor-in-chief
Academician L.N. Kogarko
Reviewers:
Ph.D. V.N. Ermolaeva
Ph.D. N.V. Sorokhtina
Ph.D. V.A. Zaitsev

All papers are presented in author's edition.

Alkaline Magmatism of the Earth and Related Strategic Metal Deposits. Proceedings of
XXXII International Conference. Apatity 7-14 August 2015, /Editor-in-chief L.N. Kogarko. –
M.: GEOKHI RAS, 2015. 158 pp. - ISBN 978-5-905049-10-1

The present volume was prepared for the XXXII international conference Alkaline
Magmatism of the Earth and Related Strategic Metal Deposits. It contains short papers
representing the frontier of geological, geochemical, petrologic, mineralogical and isotopic
research on alkaline rocks, carbonatites and their associated deposits of critical (strategic)
metals. The contributions assembled here address key problems of igneous petrology and
metallogeny, including lithospheric and sublitospheric mantle processes, evolution of magmas
from their mantle sources to highly differentiated systems, and behavior of critical metals in
igneous and supergene environments. Some of the contributions discuss current issues facing
critical metal exploration and extraction technology.

Supported by Russian Science Foundation, Russian Foundation for Basic Research and
IAGOD

ISBN 978-5-905049-10-1 © Vernadsky Institute of Geochemistry and Analytical Chemistry
of Russian Academy of Sciences (GEOKHI RAS), 2015

The cover picture of "Pink mountains" (Khibiny, oil on canvas, 1989) was painted by artist
Belkov I.V.
Belkov Igor Vladimirovich was doctor of geology-mineralogy sciences, director of the
Geological Institute KFAN the USSR from 1961 to 1985. He was greatest scientist in the field
of geology, geochronology, petrology, mineralogy and metallogeny of granites and genesis of
metamorphic rocks. Together with Batyeva I. D., he discovered the Sakharyok and Kulyok
alkaline massifs in the Kola Peninsula.
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Content

CHROMITES FROM LATE VENDIAN K-ALKALI VOLCANICS IN THE OLENEK UPLIFT (NORTHEASTERN SIBERIAN
CRATON)
AFANASIEV V.P., NIKOLENKO E.I., EGOROVA E.O. ............................................................................................ 11
PALEOZOIC MAGMATISM OF THE FENNOSCANDIAN SHIELD: FROM THOLEIITES TO CARBONATITES AND AGPAITIC
SYENITES
ARZAMASTSEV A.A. ........................................................................................................................................... 12
TYPES OF CARBONATITE AND RELATIVE ASSOCIATED SILICATE ROCKS GROUPS – BY RE-ANALYSISIS OF THE
DATABASE WOOLLEY AND KJARSGAARD
ASAVIN A.M. ...................................................................................................................................................... 14
NEOARHAEAN ALKALINE MAGMATISM OF FENNOSCANDIAN SHIELD OF ARCTIC REGION IS AN OLDEST PLUME IN
THE HISTORY OF THE EARTH?
BAYANOVA T.B., CHSHASHIN V.V., KUDRYASHOV N.M., ELIZAROV D.V., SEROV P.A. ................................... 18
EFFECTS OF SODIUM ON FERRIC/FERROUS RATIO IN SILICATE MELTS: AN EXPERIMENTAL STUDY
BORISOV А.А...................................................................................................................................................... 19
ABOUT METASOMATIC NATURE KHIBINY APATITE-NEPHELINE DEPOSITS
BORUTZKY B.YE. ............................................................................................................................................... 21
HREE-ENRICHMENT IN LATE-STAGE APATITE FROM CARBONATITES; COMPARISON OF APATITE FROM THE
SONGWE, TUNDULU AND KANGANKUNDE CARBONATITES, MALAWI
BROOM-FENDLEY S.L.*, WALL F.*, GUNN A.G.**, BRADY A.E.***................................................................. 23
PRIMORDIAL AND RADIOGENIC NOBLE GASES IN FLUID INCLUSIONS IN SEBLYAVR MASSIVE CARBONATITES AND
PYROXENITES
BUIKIN A.I.*,**, HOPP J.**, SOROKHTINA N.V.*, TRIELOFF M.**,***, KOGARKO L.N.* .................................. 26
TOWARDS THE ISSUE ABOUT THE SOURCE OF CARBONIC MATTER IN PALEOZOIC ULTRABASIC DYKES WITHIN
SPITSBERGEN ARCHIPELAGO
BURNAEVA M.YU. .............................................................................................................................................. 28
GEOCHEMISTRY OF THE BASANITE DYKE SWARMS, SOUTH ANATOLIA (KAHRAMANMARAŞ/TURKEY)
CANSU Z., ÖZTÜRK H. ........................................................................................................................................ 30
PRECAMBRIAN CARBONATITIC MAGMATISM IN MANITOBA (CENTRAL CANADA): AN OVERVIEW
CHAKHMOURADIAN A.R.*, COUËSLAN C.G.**, MUMIN A.H.***, BÖHM C.O.**, MARTINS T.**, REGUIR E.P.*,
MCFARLANE C.****, DEMÉNY A.*****, SAL’NIKOVA E.B.******, SIMONETTI A.*******, LEPEKHINA
E.N.********, KRESSALL R.D.*, REIMER E.*, KAMENOV G.D.********* .......................................................... 32
THE NEW DEMAND PARADIGM: ENVIRONMENTALLY PROGRESSIVE RARE EARTHS – MOUNTAIN PASS MINE,
CALIFORNIA, USA
CORDIER D., LANDRETH J., SIMS J. ..................................................................................................................... 34
CRITICAL FACTORS IN THE RARE EARTH MARKET
COX C. ................................................................................................................................................................ 34
RARE EARTH ELEMENTS IN CHAROITE ROCKS, MURUN COMPLEX
DOKUCHITS E.YU., VLADYKIN N.V. ................................................................................................................... 35
ROLE OF TECTONICS DURING FORMATION OF ALKALINE ROCK ASSOCIATIONS OF SOUTH-WESTERN PART OF
RUSSIAN PLATFORM
DONSKOY A.N., DONSKOY N.A., LEGKAYA L.I. ................................................................................................ 37
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CRYSTAL CHEMISTRY AND GENESIS OF ORGANIC MINERALS: THE INTERACTION BETWEEN ORGANIC MOLECULES
AND HEAVY METALS IN HYDROTHERMAL ENVIRONMENTS
ECHIGO T.,* KIMATA M.** ................................................................................................................................ 38
LEACHING OF RARE-EARTH AND RADIOACTIVE ELEMENTS FROM LOVOZERITE LUJAVRITE (LOVOZERO ALKALINE
MASSIF, KOLA PENINSULA)
ERMOLAEVA V.N.*, MIKHAILOVA A.V.**, KOGARKO L.N.** ........................................................................... 40
MANTLE CARBONATITES OR CRUSTAL METACARBONATES? CHALLENGE FROM CARBONATE-DYKES IN THE IVREA-
VERBANO ZONE (NW ITALY / S SWITZERLAND)
GALLI A., GRASSI D.N., GIANOLA O.A., RICKLI J. ............................................................................................. 42
NATURAL DIAMONDS IN SPACE AND TIME
GARANIN V.K.*,**, GARANIN K.V.** ............................................................................................................... 43
KIMBERLITE EMPLACEMENT TEMPERATURES: INSIGHTS FROM INTERACTION BETWEEN CARBONATE-EVAPORITE
XENOLITHS AND KIMBERLITES OF VARIOUS VOLCANIC FACIES
GAUDET M.A.*, KOPYLOVA M.G.*, KOSTROVITSKY S.I.**, POLOZOV A.G.*** ............................................... 45
EUROPEAN REE RESOURCES: ALKALINE MAGMATISM AND BEYOND
GOODENOUGH K.M.*, DEADY É.A**, SHAW R.A.**, AND THE EURARE WP1 TEAM...................................... 46
PETROGENESIS OF EL-KAHFA RING COMPLEX EASTERN DESERT, EGYPT
HEGAZY H.A. ..................................................................................................................................................... 47
THE GEMSTONE (DIAMOND AND SAPPHIRE) POTENTIAL OF LAMPROPHYRES IN THE NORTH ATLANTIC CRATON –
EXAMPLES FROM NORTHWEST SCOTLAND
HUGHES J.W.*, FAITHFULL J.** ......................................................................................................................... 47
GEOLOGY AND MINERALISATION OF THE JURASSIC (165 MA) QEQERTAASAQ CARBONATITE COMPLEX, WEST
GREENLAND
HUGHES J.W.*,**, GOODENOUGH K.M.***, FINCH A.A.* ................................................................................. 49
THE FIRST RESULTS OF THE MELT INCLUSION STUDY OF PHONOLITE DYKES FROM KOVDOR MASSIF (KOLA
PENINSULA)
ISAKOVA A.T.*, ARZAMASTSEV A.A.**, ROKOSOVA E.YU.* ............................................................................ 51
DEEP CARBON CONNECTION TO LONG-TERM ENRICHMENT OF RARE EARTH ELEMENTS IN THE EARTH’S CRUST
JONES A.P. .......................................................................................................................................................... 53
NEW MODELS FOR KIMBERLITE PARENTAL MELTS: COMPOSITION, TEMPERATURE, ASCENT AND EMPLACEMENT
KAMENETSKY V.S.*, GOLOVIN A.V.**, MAAS R.***, YAXLEY G.M.****, KAMENETSKY M.B.* .................... 54
METASOMATIC PROCESSES IN PERIDOTITE XENOLITHS, GRIB PIPE, ARKHANGELSK PROVINCE, RUSSIA
KARGIN A.V., SAZONOVA L.V., NOSOVA A.A., KOVALCHUK E.V., MINEVRINA E.A. ....................................... 55
GEOCHEMICAL MODELS OF SUPERLARGE DEPOSITS OF STRATEGICAL METALS IN ALKALINE ROCKS (EASTERN
FENNOSCANDIA)
KOGARKO L.N. ................................................................................................................................................... 58
USE OF RHA LANGUAGE FOR ORDERING ROCKS ON THEIR MINERAL COMPOSITION
KRASNOVA N.I.*, BURNAEVA M.YU.** ............................................................................................................. 61
MINERALS AND SOURCES OF RARE-EARTH ELEMENTS IN KARELIA
KULESHEVICH L.V., DMITRIEVA А.V. ................................................................................................................ 63
MONZOGABBRO "UBOROK"OF THE SOUTH-EAST OF BELARUS (VORONEZH CRYSTALLINE MASSIF)
KUZMENKOVA O.*, RYBORAK M.**, TOLKACHIKOVA A.*, TARAN L.*, AL’BEKOV A.**, LEVY M.* ............... 64
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EVOLUTION OF CARBONATITES AND ASSOCIATED RARE-EARTH MINERALIZATION IN THE LUGIIN GOL COMPLEX,
MONGOLIA
KYNICKY J.*, CHAKHMOURADIAN A.R.**, SMITH M.P.***, XU CH.****, GALIOVA V.M.*****,******,
BRTNICKY M.* ....................................................................................................................................................... 66
RARE METALS – THE FIRST STEP TO RICHEST ORE COMPLEX OF MASSIF TOMTOR
LAPIN A.V.*, TOLSTOV A.V.** .......................................................................................................................... 67
ON THE PROBLEM OF Y-MINERALIZATION OF COMPLEX NB-TR-SC TOMTOR DEPOSIT ORES
LAPIN A.V.*, TOLSTOV A.V.**, KULIKOVA I.M.* ............................................................................................. 68
RARE BERYLLIUM SILICATES - MELIPHANITE AND LEUCOPHANITE - FROM NEPHELINE-FELDSPAR PEGMATITE,
SAKHARJOK MASSIF, KOLA PENINSULA
LYALINA L., ZOZULYA D., SELIVANOVA E., SAVCHENKO YE. ........................................................................... 70
THE RARE EARTH METALS RESOURCE POTENTIAL OF THE KOLA PENINSULA
MASLOBOEV V.A................................................................................................................................................ 71
USING NOBLE GAS ISOTOPE SIGNATURES TO UNVEIL THE ORIGIN OF CARBON FROM THE CAPE VERDE OCEANIC
CARBONATITES
MATA J.*, MOURÃO C.*, MOREIRA M.**, MARTINS S.* .................................................................................... 72
NATIVE LAMPROITIC MELTS AND THEIR EVOLUTION: A STUDY OF SUBGLACIAL GLASSES FROM GAUSSBERG
VOLCANO (WEST ANTARCTICA)
MIGDISOVA N.A., PORTNYAGIN M.V., SUSCHSHEVSKAYA N.M. ....................................................................... 73
COMPOSITIONAL VARIATION IN THE PYROXENES AND AMPHIBOLES OF THE ABU KHRUQ RING COMPLEX, EGYPT
MOGAHED M.M., RASHWAN A.A. ...................................................................................................................... 76
RB-SR, SM-ND, PB-PB, LU-HF ISOTOPE SYSTEMS AS A SIGNATURE OF SOURCES OF ALKALINE-CARBONATITE
MAGMATISM (BY THE EXAMPLE OF URALS AND TIMAN COMPLEXES, RUSSIA)
NEDOSEKOVA I.L. ............................................................................................................................................... 78
MAJOR, MINOR AND TRACE ELEMENT AND OXYGEN ISOTOPIC COMPOSITION OF OLIVINE FROM KIMBERLITES OF THE
ARKHANGELSK DIAMOND PROVINCE, RUSSIA
NOSOVA A.A.*, SAZONOVA L.V.**, KARGIN A.V.*, BORISOVSKY S.E.*, KHVOSTIKOV V.A.**, BURMIY J.P.*,
KONDRASHOV I.A.* ................................................................................................................................................ 80
MAGMATISM AND METALLOGENY OF THE WESTERN ANATOLIA, TURKEY, ASSOCIATED WITH SUBDUCTION
ROLLBACK AND TRENCH RETREAT: A COMPARISON WITH THE BASIN AND RANGE PROVINCE, USA - MEXICO
ÖZTÜRK H. ......................................................................................................................................................... 83
NEW DATA ABOUT THE GENESIS OF POTASSIC LAMPROPHYRE OF THE TOMTOR MASSIF BASED ON MELT INCLUSIONS
PANINA L.I., ROKOSOVA E.YU., ISAKOVA A.T., TOLSTOV A.V. ......................................................................... 84
THE CRYSTAL CHEMISTRY AND ORIGIN OF ALEXKHOMYAKOVITE, A NEW POTASSIC CHLOROCARBONATE FROM THE
KHIBINY ALKALINE COMPLEX, KOLA PENINSULA, RUSSIA
PEKOV I.V.*,**, ZUBKOVA N.V.*, LYKOVA I.S.*,***, TURCHKOVA A.G.*, YAPASKURT V.O.*, CHUKANOV
N.V.****, BELAKOVSKIY D.I.***, BRITVIN S.N.*****,******, PUSHCHAROVSKY D.YU.*.................................. 86
NEW DATA ON METALLOGENY OF RARE METALS OCCURENCES IN ROMANIA
POPESCU G.C., NEACŞU A., PETRESCU L. ........................................................................................................... 87
TEMPORAL VARIATIONS OF HYDROGEN EMISSION IN THE LOVOZERO RARE-METAL DEPOSIT (KOLA PENINSULA,
NW RUSSIA)
PUKHA V.V., NIVIN V.A. .................................................................................................................................... 90
PHOSCORITES-CARBONATITE RELATIONS IN THE KOVDOR COMPLEX
RASS I.T., KOVALCHUK E.V. .............................................................................................................................. 92
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THE ‘MALIGNITE-HORNBLENDE SYENITE-NEPHELINE SYENITE-QUARTZ SYENITE’ ASSOCIATION OF PURIMETLA
ALKALINE COMPLEX, PRAKASAM ALKALINE PROVINCE, ANDHRA PRADESH, INDIA
RATNAKAR J. ...................................................................................................................................................... 94
SR-ND ISOTOPE DATA FOR CARBONATITE AND RELATED UHP ROCKS FROM TROMSO NAPPE, NORTHERN
SCANDINAVIAN CALEDONIDES
RAVNA E.J.K.*, ZOZULYA D.R.**, KULLERUD K.*, ***, SEROV P.** ............................................................... 95
MAJOR AND TRACE ELEMENTS IN CALCITE AND DOLOMITE FROM CARBONATITES AND THE STORIES THEY TELL
REGUIR E.P., CHAKHMOURADIAN A.R. .............................................................................................................. 96
FORMATION CONDITIONS OF POTASSIUM MAFIC ROCKS FROM YLLYMAKH, RYABINOVY AND INAGLI MASSIFS,
CENTRAL ALDAN
ROKOSOVA E. YU., SOKOLOVA E.N. .................................................................................................................. 97
CARBONATITE MAGMAS IN LOWER MANTLE
RYABCHIKOV I.D. ............................................................................................................................................... 99
FINDINGS RELATED THE PROJECT OF TURKEY OPHIOLITE INVENTORY OF GEOLOGICAL SURVEY OF TURKEY
SARIFAKIOGLU E.*, TIMUR E.*, DILEK Y.** .................................................................................................... 101
NEW DISCOVERIES OF REE-MINERALIZATION IN THE ILIMAUSSAQ INTRUSION, SOUTH GREENLAND
SCHONWANDT H.K.V. ...................................................................................................................................... 105
SILICATE-SALT INCLUSIONS IN DIOPSIDE OF OLDOINYO LENGAI IJOLITES, TANZANIA
SEKISOVA V.S., SHARYGIN V.V. ...................................................................................................................... 105
MID-PALEOPROTEROZOIC TITANIFEROUS ELET’OZERSKY COMPLEX OF ULTRAMAFIC-MAFIC-ALKALINE ROCKS IN
NORTHERN KARELIA (RUSSIA) AS TRANSITIONAL CHAMBER OF FE-TI-ALKALI BASALTIC MAGMATIC SYSTEM
SHARKOV E.V.*, SHCHIPTSOV V.V.**, CHISTYAKOV A.V.*, BOGINA M.M.* ................................................. 107
SILICATE-CARBONATE LIQUID IMMISCIBILITY IN MELILITOLITE FROM PIAN DI CELLE VOLCANO (UMBRIA, ITALY)
SHARYGIN V.V. ................................................................................................................................................ 109
DELHAYELITE-GROUP MINERALS FROM SADIMAN NEPHELINITE (TANZANIA) AND SAGHRO PHONOLITE (SE
MOROCCO)
SHARYGIN V.V.*, ZAITSEV A.N.**, BERGER J.*** .......................................................................................... 111
ORE DEPOSITIONS IN CONNECTION WITH THE PHANEROZOIC ALKALINE MAGMATISM OF EAST AZOV REGION
(UKRAINIAN SHIELD)
SHEREMET E.M................................................................................................................................................. 113
ON THE ORIGIN OF HIGH POTASSIUM MAGMAS IN SUBDUCTION ZONES
SIMAKIN A.G.*, SALOVA T.P.* ........................................................................................................................ 114
REE MINERALOGY OF THE LOFDAL CARBONATITE, NAMIBIA
SITNIKOVA M.A.*, DOCABO V.N.**, WALL F.***, GRAUPNER T.*................................................................. 116
CHARACTERISATION OF ZIRCONOLITE FROM ALKALINE PEGMATITES OF THE LARVIK PLUTONIC COMPLEX, SOUTH
NORWAY
ŠKODA R., HAIFLER J., HÖNIG S. ...................................................................................................................... 117
SPECIFIC FEATURES OF EUDIALYTE DECOMPOSITION IN OXALIC ACID
SMIRNOVA T.N.*, PEKOV I.V.*,**, VARLAMOV D.A.***, KOVALSKAYA T.N.***, BYCHKOV A.Y.*, ............. 119
BYCHKOVA Y.V.****....................................................................................................................................... 119
THERMAL ANALYSIS OF CARBONACEOUS SHALES AS A WAY TO FORECASTING OF GOLD MINERALIZATION (AT THE
EXAMPLE OF BELORETSK METAMORPHIC DOME, SOUTHERN URALS)
SNACHEV A.V................................................................................................................................................... 121
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COMPOSITION AND THERMODYNAMIC PARAMETERS OF THE METASOMATIC AGENT BENEATH EAST ANTARCTICA
FROM RESULTS OF STUDY INCLUSIONS
SOLOVOVA I.P.*, KOGARKO L.N.** ................................................................................................................. 123
MAGNESITE MINERALIZATION OF THE SAFIANOVSKOE MASSIVE SULFIDE DEPOSIT (MIDDLE URAL, RUSSIA)
SOROKA E.I., PRITCHIN M.R. ............................................................................................................................ 125
AU AND AG IN CARBONATITES OF THE GULI MASSIF (POLAR SIBERIA)
SOROKHTINA N.V., KOGARKO L.N. .................................................................................................................. 127
BA-DOMINANT FLUOROALUMINATES FROM THE KATUGIN RARE-METAL DEPOSIT (TRANSBAIKALIA, RUSSIA):
CHEMICAL AND RAMAN DATA
STARIKOVA A.E., SHARYGIN V.V. ................................................................................................................... 129
ADAKITES: COMPOSITIONS OF MELTS, RESIDUAL GLASSES AND ROCKS
TOLSTYKH M.L., NAUMOV V.B. ....................................................................................................................... 131
FORMATIONAL TYPIFICATION OF EARLY-HERCYNIAN VOLCANIC COMPLEXES IN ARCHANGELSK KIMBERLITE-
PICRITE PROVINCE
TRETYACHENKO V.V.*, GARANIN V.K.**,***, BOVKUN A.V.***, GARANIN K.V.*** ................................... 133
COMPOSITION OF MINERAL-FORMING ENVIRONMENT OF KULEMSHOR RARE METAL OCCURRENCE (SUBPOLAR
URALS)
UDORATINA O.V.*, VARLAMOV D.A.**, SHEVCHUK S.S.* .............................................................................. 136
TITANIUM BEHAVIOR IN THE KRYVBAS ROCKS (UKRAINE)
VELIKANOV Y.F., VELYKANOVA O.Y. ............................................................................................................. 137
ND AND SR ISOTOPIC COMPOSITION OF MINERALIZED CARBONATITES
VERPLANCK P.L.*, FARMER G.L.**, MARIANO A.N.***, VERPLANCK E.P** ................................................. 139
PETROLOGY, GEOCHEMISTRY AND COMPOSITION RARE-METAL ALKALINE ROCKS IN THE SOUTH GOBI DESERT,
MONGOLIA
VLADYKIN N.V., RADOMSKAJA T.A................................................................................................................. 140
RARE EARTH ELEMENTS IN HOT WATER
WILLIAMS-JONES A.E. ...................................................................................................................................... 141
REE AND TRACE ELEMENTS IN ROCKS OF THE CATANDA CARBONATITE MASSIF (W. ANGOLA)
WOLKOWICZ S., BOJAKOWSKA I., WOLKOWICZ K., JACKOWICZ E. .................................................................. 143
MAGNETITE-HOSTED MULTIPHASE INCLUSIONS IN PHOSCORITES AND CARBONATITES OF THE KOVDOR COMPLEX,
KOLA ALKALINE PROVINCE
ZAITSEV A.N.*, KAMENETSKY V.S.**, CHAKHMOURADIAN A.R.*** .............................................................. 144
SOME NOTES ABOUT LIP (LARGE IGNIEOS PROVINCES) TEMPORAL DISTRIBUTION IN EARTH HISTORY.
ZAITSEV V.A. ................................................................................................................................................... 145
TYPOMORPHIC FEATURES OF ALLANITE IN ROCKS OF THE TSAKHIRIN SITE OF THE KHALDZAN-BUREGTEG ALKALI-
GRANITE COMPLEX (WESTERN MONGOLIA)
ZENINA K.S., KONOVALENKO S.I. .................................................................................................................... 147
GEODYNAMIC RECONSTRUCTION OF THE PALAEOZOIC KOLA ALKALINE LARGE IGNEOUS PROVINCE
ZHIROV D.V. .................................................................................................................................................... 148
MAGNETOELASTIC EFFECTS IN THE MAGNETITE-СALСITУ ROCKS OF THE KOVDOR MASSIF
ZHIROVA A.M................................................................................................................................................... 150
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THE GEOCHEMICAL FEATURES OF MELILITE-BEARING ROCKS AND INITIAL MAGMAS OF CUPAELLO AND COLLE
FABBRI (CENTRAL ITALY)
ISAKOVA A.T. ................................................................................................................................................... 153
THE CHEMICAL COMPOSITION OF LAMPROPHYLLITE GROUP MINERALS AND CRYSTAL STRUCTURE OF A NEW
FLUORINE-RICH BARYTOLAMPROPHYLLITE FROM THE AGPAITIC DYKE, AREA " MOKHNATYE ROGA" (KOLA
PENINSULA)
FILINA M.I.1, AKSENOV S.M.2, SOROKHTINA N. V. 1, KOGARKO L.N. 1, KONONKOVA N.N. 1 .......................... 155

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