 | | Journal (article/letter/editorial) | | minerals Article Yoko–Dovyren Layered Massif: Composition, Mineralization, Overburden and Dump Rock... Russian Academy of Sciences, 670047 Ulan-Ude, Russia Baikal Institute of Nature Management, Siberian... Russian Academy of Sciences, 670047 Ulan-Ude, Russia; lkhud@binm.ru Correspondence: evg-kislov@ya.ru...various minerals. The Yoko–Dovyren intrusive in the North Baikal Region, Russia, is considered an example...dumps. The construction materials production is main industry using this rocks. Therefore, the purpose |  | | Journal (article/letter/editorial) | | .....77 2. The Witwatersrand Beds 3. The Black Reef and Klipriversberg Amygdaloid ......... 4. The Dolomite...obtained by leisurely work on a large scale; still, the main geological boundaries have been drawn with as near...Magaliesberg fi)rms the natural northern boundary of the district under description. The sedimentary strata of which...(See P1. VI.) 1 The most important streams in the district under consideration are the Blesbok Sprult, Klip...section of a specimen from Uitkyk, in the Heidelberg district, discloses a quartz-felsite, composed of rounded |  | | Journal (issue) | | Vertical Force Magnetic Survey of the Coalisland District, Co. Tyrone, Northern Ireland, by \V. Bullerwell...Gravimeter Survey of the Ston East,)n-H arptree District, East Somerset, by W, Bullenvell, B.Sc., Ph.D...a Lower Carboniferous Coral from the Clitheroe District, Lancashire, by Stanley Smith, M.A., D .Sc. VL-1...diameter B. Small concentric ' algal' growths in reef-limestone. Cutting on colliery railway, Cold Hesledon...PLATE VIII. Micro-organisms from Middle Permian Reef-Limestones of Co. Durham PLATJ<; V. 74 74 75 75 |  | | Book | | family. The working deposits in South Africa and Russia are by far the largest for the PGM. The nickel...perfect circular, 8-km diameter Kondyor Massif intrusion in Russia. Platinum is often found in mining of...alluvial deposits in Colombia and the Ural Mountains, Russia. B O X 1 . 2 T R A N S I T I O N M E TA L S An...the large copper–nickel deposits near Noril’sk in Russia, and the Sudbury Basin in Canada. Iron meteorites...structure of the igneous complex at the Sudbury Mining District, Canada, was formed as the result of a meteorite |  | | Journal (article/letter/editorial) | | associated. It seems to me that, after all, thisis in the main a petrological question, which can be easily settled...of the Bird Reef Series, and (2) the slates which occur in the footwall of the Main Reef itself, in both...alternating belts between the outcrop of the Main Reef at Johannesburg and the granite north of the Houghton...other parts of the country (e.g. in the Heidelberg district), for although such beds belong no doubt to the...lath-shaped crystals or microlites of felspar, or augite granules, or indeed of any of the usual characteristics |  | | Journal (article/letter/editorial) | | the main reef; the isolated phosphate-bearing island, Angaur, lies to the south. Within the main barrier...barrier and fringing reef the islands can be divided into two major types: (1) the northern volcanic islands...into two categories. The first consists of cemented reef and lagoonal deposits that have been uplifted to...by cliffs. The second category includes the low reef and platform islands; these are composed of calcareous...andesites, and dacites are plagioclase feldspars, augite, hypersthene, hornblende, magnetite, and, in a |  | | Book | | a new chapter on the geology of the Melbourne district. In addition to the acknowledgements recorded...f21Ci1'1g O. P, Singleton Geology of the Melbourne district A. H. M. VandenBerg, with contributions by M....Geology of the Geelong district D- SPSIICSI'-J0neS Geology of the Bacchus Marsh district O. P. Singleton Stratigraphy...petrology of the Macedon district O. P. Singleton Geomorphology of the Western District volcanic plains. lakesand...the continued existence of Bass Strait and the highlands of Victoria. Rocks of known Cambrian age outcrop |  | | Book | | the Lake Superior Type.179 MONSEUR, G. , PEL, J. : Reef Environment and Stratiform Ore Deposits (Essay of...Therefore, the question can be asked, whether the main stage of concentration did not occur before the...and climatic conditions were, among others, the main factors used to explain the large mineralogical...the rules of lo¬ calization of these deposits. The main process is the fixation of heavy chalcophile metals...not of impor¬ tance, be it an epeirogenic horst, a reef bioherm or a diapiric upraise of the bottom, provided |  | | Report (issue) | | ___________________________________ _ Sudbury district _______________________ ~ Discovery and present...lacers-------------------------------Tulameen district __________________ _ Other placers ______________________...ores ____________ _ Placers of the Witwatersrand district __ History and production _____________ _ General...---------------N oril'sk district ____________ -----_---- _____ _ Petsamo district ___________________________...Placers-------------------------------Goodnews Bay district _____________ _ ~ining and production _________ |  | | Report (volume) | | Plan of Ribblesdale's shaft, Do. of Champion reef new Mysore Mine. vertical shaft. „ 3. Plan...section, 120-stamp 5. mill, Mysore Mine. Champion Reef new Ditto mill (120-head). 6. Proposed arrangement...Mysore Gold Mines; „ 8. Champion Reef Gold Mines; „ Champion Reef Mine. underground plan, showing ore-...longitudinal section, showing ore- chutes. Champion Reef Mine „ 12 Plan and section of folded portion...folded portion of lode. of lode in „ 14. Champion Reef „ 15. Emptying tailings-pits by cooly labour |  | | Report (issue) | | number of type species from the Noril'sk Complex in Russia. Twenty (20) valid type species so far remain unique...kimberlite pipe, Farm Dorst Fontein K 77, Kimberley district, Northern Cape Province (Parry and Wright, 1925)...in the Wessels mine, Farm Wessels 227, Hotazel district, Northern Cape Province (Von Bezing et al., 1991...Cnydas West, Gordonia district, Northern Cape Province and from Karelia, Russia (Hugo, 1961; Zhirov et...the Pietrosu Valley and in hornfels of the Baul Massif, near Poiana, Rumania(Pavelescu and Pavelescu, |  | | Book (volume) | | ' This Kupferschiefer is cases. lean in this district, carrying only 1.4% of copper, and no silver,...fissures known as 'rucken' in the Mansfeld copper district also contain occasional nickelite, together with... known examples of this type is the cobalt district of Schneeberg, in Saxony, a mountainous region...hornfels and andelusite-mica rocks, as well as striped augite-hornblende schist. In addition to this the Eibenstock...present. Besides quartz-cobalt veins the Schneeberg district contains quite a 3 variety of vein types, which |  | | Book (edition) | | soil ... ..... . . Cleavage fragments of Augite 52. Calcite fragments 53. Fluorite . (fluorspar)...classification of of very wide application, and in main capable of extension to the great majority of sediments...barriers of lagoons originate in Such coral-reef. 1 sand or many different ways ; some- times...Consein rivers material must rebrought by quently main in the lake, and the concentration of the dis- ...they are well developed in Wales, in the Lake District, and in Scotland. Similar deposits also occur |  | | Book | | the rock name (e.g. schist) was pre-fixed by the main mineral assemblage in order of relative abundance...crystal boundaries and between interstitial and main-body liquids. Wager and I believed that early rock...Sill indicates that, although plagioclase/augite and augite/orthopyroxene ratios are relatively constant...boundary layer with less differentiated magma from the main reservoir could also result in a hybrid magma oversaturated...convection and steady cooling. In the Khibina alkaline massif of the Kola Peninsula, massive feldspathic urtites |  | | Book | | by younger tectonic and metamorphic events. The main part of the Archaean complex consists of quartzo-feldspathic...less deformed rock. Isotopic dates suggest that the main phase of Nagssugtogidian deformation and metamorphism...categories. Troctolitic gabbros, and syenogabbros and augite syenites occur within both oversaturated and undersaturated...trending mountain chain was formed in which the main direction of tectonic transport was northwards towards...North Greenland, while a conspicuous’ east-west reef belt characterises the Silurian. To the north the | | | Book | | by younger tectonic and metamorphic events. The main part of the Archaean complex consists of quartzo-feldspathic...deformed rock. Isotopic dates suggest that the main phase of Nagssugtogidian deformation and metamorphism...categories. Troctolitic gabbros, and syenogabbros and augite syenites occur within both oversaturated and undersaturated...trending mountain chain was formed in which the main direction of tectonic transport was northwards towards...western North Greenland, while a conspicuous east-west reef belt characterises the Silurian. To the north |  | | Journal (article/letter/editorial) | | with ophitictexture. The essential minerals are augite and plagioclasefeldspar (Ab27An03). Small amountsof...fuchsitealterationoccurredslightly later than the main period of carbonatization. Gold valuesare lower...posit and the "grey ore" bodiesof the Mother Lode district, whichhavebeenclassified by Lindgren2 as mesothermal...Canada; (2) in the southernhalf of the Mother Lode district of California; and (3) in Western Australia. The...area stretchingeast from Lake Kamiskotia in the district of Cochrane as far as the Kinojevis River in |  | Yudovskaya, M. A., Kinnaird, J. A., Udachina, L. V., Distler, V. V., Kuz’min, D. V. (2014) Role of magmatic and fluid concentrating in formation of platinum mineralization in the Lower Zone and Platreef as follows from composition of phlogopite, cumulus silicates, and sulfide melt, the northern limb of Bushveld Complex. Geology of Ore Deposits, 56 (6) 451-478 doi:10.1134/s1075701514060063 | Journal (article/letter/editorial) | | Sciences, Staromonetnyi per. 35, Moscow, 119017 Russia b School of Geosciences, University of the Witwatersrand...Novosibirsk, 630090 Russia d Novosibirsk State University, ul. Pirogova 2, Novosibirsk, 630090 Russia Received March...units—reefs—throughout the section. The main reef can be correlated with the Merensky Reef. The objective of this study...Platreef near its unconformable contact with the Main Zone. It is shown that Ni partitioning between cumulus...metals between silicate and sulfide melts is the main orecontrolling factor. DOI: 10.1134/S1075701514060063 |  | | Report (edition) | | Spa .. .. 24 .. .. .. .. .. 8 Fig. 8. Main Cliff, Dobb’s Linn .. 35 Fig. 9. Map showing...may be divided into three distinct regions, the Highlands, the Midland Valley and the Southern Uplands....farther to the south-west, particularly in the district between Peebles and Moffat, many of the hill-tops...Uplands to the Solway Firth. The initiation of the main features of the present drainage system is of a...are locally highly cleaved. In the Ballantrae district the serpentine and other rocks, regarded as intrusions |  | | Book | | individual deposits or districts. (in brackets country, district, deposit reviewed): Adamek P. (Scandinavia), Adams...Intragranitic Vein Uranium Deposits: Limousin/La Crouzille District, France. . . . . . . . . . . . . . . . . . . ...Perigranitic Monometallic Vein Uranium Deposits: Pfibram District, CSFR .......................... 168 168 191...Vein Uranium Deposits: St. Joachimsthal/Jachymov District, CSFR .......... 5.3.4 Perigranitic Uranium Deposits...economic types of deposits. Chapter 4 forms the main part of the book and describes the principal recognition |  | | Book | | geological maps The importance of datum surfaces The main types of structure Dip and strike Shapes of outcrops...The Southern Uplands The Welsh basin, the Lake District and the south-eastern foreland Lower Palaeozoic...of millions of years and one of the geologist's main tasks is to piece together the complex history of...permanence of the continents and oceans: have the main ocean basins and continental rafts remained in the...minerals, together with a description of the six main groups- quartz, feldspars, micas, amphiboles, pyroxenes |  | | Book (edition) | | the geological features of the deposits form the main portion of the work, their close connection with...part in all the folding and faulting that the district may undergo ; and if in the mass form of a bed...reference to the original structure of of the district, the area. mining districts occupy disturbed...number as simple fracturing, are produced. Where a district has been subjected to shearing, the metalliferous...been the endeavour of the writers to present the main geological features of metalliferous regions as |  | | Book (edition) | | the geological features of the deposits form the main portion of the work, their close connection with...the folding and and if in the faulting that the district may undergo form of a bed, its outcrop will be...not conform to the outcrops of the rocks of the district, fracture, or with little some but will follow...as simple fracturing, are produced. Where a district has been subjected to shearing, the may have deposited...been the endeavour of the writers to present the main geological features of metalliferous regions as | | | Report (edition) | | section across the ' Score ' at Hartfell Spa 24 8. Main Cliff, Dobb's Linn 35 9. Map showing principal...be divided into three distinct regions, the Highlands, the Midland Valley and the Southern Uplands....farther to the south-west, particularly in the district between Peebles and Moffat, many of the hill-tops...Uplands to the Solway Firth . The initiation of the main features of the present drainage system is of a...are locally highly cleaved. In the Ballantrae district the serpentine and other rocks, regarded as intrusions |  | | Report (volume) | | quartz, and barite, or in open crush-breccias of reef rock. The veins seldom exceed 6 inches in thickness...lateral variation. In the southern part of the district hematite, pyrite, and chalcopyrite, accompanied...ECONOMIC GEOLOGY From the central part of the district northward, primary cinnabar increases in relation...other sulfldes until, at the northern end of the district, it is the only ore mineral. The total production...a NEVADA "" FIOURB 4, Sketch map showing the main topographic features of the Steens-Pueblo region |
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