 | | Book (edition) | | The pioneers of Jersey mineralogy, Fathers Teilhard de Chardin and Pelletier, have pointed out (25) how...College, Les Fontaines, Chantilly, Seine-et-Oise, France. Specimens have been obtained from nearly all the...localities, were first found by Fathers Teilhard de Chardin and Pelletier, and this book cannot but follow...Societe, first in the supplementary (ist of Teilhard de Chardin and Pelletier (26) and subsequently in the...and annotated copy of the first paper by Teilhard de Chardin and Pelletier (25). lts original main object |  | | Journal (article/letter/editorial) | | metamorphosed polymict volcaniclastic breccia (PVB) and lamprophyre. The breccia occurs as thick, 60–110 m conformable...along strike for more than 4 km, whereas younger lamprophyre occurs as 0.5–3 m dykes. Magmatic predecessors...Michipicoten Greenstone Belt; Diamonds; Calc-alkaline lamprophyre; Volcaniclastic; Debris flow 1. Introduction...mkopylova@eos.ubc.ca (M. Kopylova). 1 Present address: De Beers Canada Exploration, 1 William Morgan Drive...are black. Sources for the U–Pb ages are: (1) Lamprophyre dykes at outcrops 58 and 145 (Stott et al., 2002); |  | | Journal (article/letter/editorial) | | titanaugite-ilmenite gabbro and lamprophyre. The margin of the intrusion is defined by a ring dyke of alkali gabbro...are cut by a swarm of hornblendebiotite-rich lamprophyre dykes. Thermal metamorphism has converted the...titanaugite-ilmenite gabbro and lamprophyre ring dykes, marginal alkali gabbro and lamprophyre dyke swarm. An initial...Valleys, and also with an extensive lamprophyre-alkali dolerite dyke swarm cutting both intrusions and...titanaugite-ilmenite gabbro and lamprophyre ring dykes; marginal alkali gabbro ring dyke; lamprophyre dyke swarm. PETROLOGY |  | | Journal (article/letter/editorial) | | albitedolerites, which, at one locality is cut by a lamprophyre dyke belonging to a suite of minettes and kersantites... Roach 1957, 1966 for definition). However, the dyke in Fermain Bay cuts across diorite sheets considered...sheets of Roach 1966). Recently, an albite-dolerite dyke has been found cutting the St Peter Port Gabbro...the numerous metadolerite intrusions of the Vazon dyke swarm described by Lees and Roach (1987). They often...to the contacts is seen, e.g. the more southerly dyke at Mont Chinchon slip, Perelle Bay. The albite-dolerites |  | | Journal (article/letter/editorial) | | information: http://www.tandfonline.com/loi/taje20 Lamprophyre dyke suites from western Tasmania, their radiometric...McClenaghan , D. B. Seymour & I. M. Villa (1994) Lamprophyre dyke suites from western Tasmania, their radiometric...Journal of Earth Sciences (1994) 41, 47-54 Lamprophyre dyke suites from western Tasmania, their radiometric...radiometric age determinations from minettes in lamprophyre dyke suites from western Tasmania give Late Devonian...geochronology, lamprophyre, Point Hibbs, Tasmania, thrust faulting. INTRODUCTION Scattered lamprophyre dyke suites |  | | Journal (article/letter/editorial) | | Mason Geoscience , Greenhill, SA, 5140, Australia c De Grey Mining Ltd , Suite 4, 100 Hay Street, Subiaco...Mason Geoscience, Greenhill, SA 5140, Australia. 3 De Grey Mining Ltd, Suite 4, 100 Hay Street, Subiaco...by numerous plutons and dykes of monzonite, lamprophyre and syenite and is cut by a swarm of post-intrusion...that are intruded by monzonite porphyry and lamprophyre dykes. The hangingwall of the central mineralised...of monzonite porphyry, syenite porphyry and lamprophyre. The eastern intrusive complex is characterised |  | | Journal (article/letter/editorial) | | crustal component. Key words: geochemistry, lamprophyre, mineralogy, minette, Proterozoic, shoshonite...shoshonite, Tennant Creek. INTRODUCTION Potassic igneous dyke suites with calc-alkaline (shoshonitic) geochemical...rocks. One such suite of phlogopite-bearing lamprophyre dykes intrudes the mineralised Warramunga Group...obtained from dykes inter- sected during exploration drilling have a close spatial association with major Au-Bi-Cu...showing the location of drillsites from which lamprophyre samples were obtained and the location of major |  | Giri, Rohit Kumar, Pankaj, Praveer, Pandit, Dinesh, Sahoo, Samarendra, Chakrabarti, Ramananda, Chalapathi Rao, N V (2019) Pyroxenite dykes with petrological and geochemical affinities to the Alaskan-type ultramafics at the northwestern margin of the Cuddapah basin, Dharwar craton, southern India: Tectonomagmatic implications. Journal of Earth System Science, 128 (5). doi:10.1007/s12040-019-1153-2 | Journal (article/letter/editorial) | | Mantle Petrology Laboratory, Department of Geology, Centre of Advanced Study, Institute of Science, Banaras...Banaras Hindu University, Varanasi 221 005, India. 2 Centre for Earth Sciences, Indian Institute of Science...accepted 6 December 2018 Two previously reported lamprophyre dykes from the Kalwakurthy area, at the northwestern...reinterpret the recently reported ‘Kalwakurthy lamprophyre’ (from the Polkampalli and Potepalli areas) dykes...Abbreviations: MUD, Mudigubba lamprophyre; UK, Udiripikonda lamprophyre; WKF, Wajrakarur kimberlite field; |  | Guarino, Vincenza, Azzone, Rogério Guitarrari, Brotzu, Pietro, de Barros Gomes, Celso, Melluso, Leone, Morbidelli, Lucio, Ruberti, Excelso, Tassinari, Colombo Celso Gaeta, Brilli, Mauro (2012) Magmatism and fenitization in the Cretaceous potassium-alkaline-carbonatitic complex of Ipanema São Paulo State, Brazil. Mineralogy and Petrology, 104 (1) 43-61 doi:10.1007/s00710-011-0168-4 | Journal (article/letter/editorial) | | Rogério Guitarrari Azzone & Pietro Brotzu & Celso de Barros Gomes & Leone Melluso & Lucio Morbidelli &...: C. de Barros Gomes : E. Ruberti : C. C. G. Tassinari Instituto de Geociências, Universidade de São Paulo...Brazil. The chemical differences between the lamprophyre, glimmerites, carbonatites, apatitites and magnetitites...(AX, Alto Xingu; SV, São Vicente; BJ, Bom Jardim de Goiás; PG, Ponta Grossa; RG, Rio Grande; PP, Ponta...intrusive bodies occurring as pipes, plugs, and dyke swarms (Ruberti et al. 2005). The rock associations |  | Boskabadi, Ahmad, Pitcairn, Iain K., Stern, Robert J., Azer, Mokhles K., Broman, Curt, Mohamed, Fathy H., Majka, Jaroslaw (2013) Carbonatite crystallization and alteration in the Tarr carbonatite–albitite complex, Sinai Peninsula, Egypt. Precambrian Research, 239. 24-41 doi:10.1016/j.precamres.2013.09.001 | Journal (article/letter/editorial) | | TX, USA c Geology Department, National Research Centre, Cairo, Egypt d Geology Department, Faculty of...surrounding the albitite intrusion with associated actinolite, chlorite, sericite and epidote. Geochemical...breccia zones surrounding the albitites as small dyke-like bodies commonly <1 m but up to 10 m wide in...the dolomite in places. Olivine dolerite and lamprophyre dykes also occur mainly within or near the breccia...regional metamorphism. The carbonatites occur as dyke-like bodies, veins and as cement in breccia zones |  | Hrouda, František, Faryad, Shah, Kubínová, Šárka, Verner, Kryštof, Chlupáčová, Marta (2019) Simultaneous Free Flow and Forcefully Driven Movement of Magma in Lamprophyre Dykes as Indicated by Magnetic Anisotropy: Case Study from the Central Bohemian Dyke Swarm, Czech Republic. Geosciences, 9 (3) 104 doi:10.3390/geosciences9030104 | Journal (article/letter/editorial) | | Flow and Forcefully Driven Movement of Magma in Lamprophyre Dykes as Indicated by Magnetic Anisotropy: Case...Case Study from the Central Bohemian Dyke Swarm, Czech Republic František Hrouda *, Shah W. Faryad, Šárka...2019 Abstract: A composite lamprophyre dyke from the Central Bohemian Dyke Swarm (Czech Republic) shows...magnetic foliation and lineation parallel to the dyke plane) as well as those of forcefully driven magma...perpendicular to the dyke plane). The overall characteristics of the magnetic parameters across the dyke indicate |  | Sanislav, I. V., Brayshaw, M., Kolling, S. L., Dirks, P. H. G. M., Cook, Y. A., Blenkinsop, T. G. (2017) The structural history and mineralization controls of the world-class Geita Hill gold deposit, Geita Greenstone Belt, Tanzania. Mineralium Deposita, 52 (2) 257-279 doi:10.1007/s00126-016-0660-1 | Journal (article/letter/editorial) | | greenstone belt. Early, folded lamprophyre dykes, and later lamprophyre dykes, crosscutting the folded...sanislav@jcu.edu.au 1 Economic Geology Research Centre (EGRU) and Department of Earth and Oceans, James...diorite intrusions 2699 ± 3 Mab 2698 ± 14 Maa Lamprophyre 1 2686 ± 13 Maa fsp-porphyry 1 ? D3 D4 D5 ...2689 ± 11 Maa Plagioclase-phyric diorite dykes Lamprophyre 2 2644 ± 3 Mab Granitoids plutons 2620–2640...folds with weak S2 fabric -Sill and dykes of lamprophyre -Folded and foliated -Well-foliated dykes that |  | | Journal (article/letter/editorial) | | immiscible sulphide globules and that shoshonitic lamprophyre plutons may hold economic promise for the platinum-group...GEOLOGIC SETTING AND SAMPLING INFORMATION The Weekend dyke swarm consists of at least nine dykes exposed over...(405-390 Ma; Muecke et al., 1988). The Popes Harbour dyke cuts one Meguma gold deposit (Malcolm, 1912) but...(Kontak et al., 1990) demonstrate that, in general, dyke intrusion and the gold mineralization event (368...infiveof the dykes (particularly the Popes Harbour dyke) have been the subject of several recent investigations |  | | Journal (article/letter/editorial) | | Australia Pty Ltd, PO Box 10398, Kalgoorlie WA 6430 b Centre for Exploration Targeting, School of Earth and...Australia Pty Ltd, PO Box 10398, Kalgoorlie WA 6430. Centre for Exploration Targeting, School of Earth and...generation Magmatic 2 (M2) quartz–feldspar porphyry dyke, which preferentially intruded along the mafic–ultramafic...fracture network at the margins) in the M2 porphyry dyke indicate its emplacement into a brittle deformation...foliation planes that wrap around the M2 porphyry dyke during late D2NC deformation. Gold is in equilibrium |  | Vikent'eva, Olga V., Bortnikov, Nikolay S., Vikentyev, Ilya V., Groznova, Elena O., Lyubimtseva, Natalya G., Murzin, Valeriy V. (2017) The Berezovsk giant intrusion-related gold-quartz deposit, Urals, Russia: Evidence for multiple magmatic and metamorphic fluid reservoirs. Ore Geology Reviews, 91. 837-863 doi:10.1016/j.oregeorev.2017.08.018 | Journal (article/letter/editorial) | | structural drilling data, the economically important ores occur to a depth of 1-1.2 km in the centre and on...northern flank of the deposit. The Berezovsk granitoid dyke-hosted gold-quartz vein deposit was considered as...volcanic-sedimentary rock; albite, chlorite, epidote, quartz, actinolite and sericite are dominant minerals in these rocks...epidoteactinolite-chlorite, chlorite-sericite-quartz, epidote-actinolite-sericite-quartz, epidote- chlorite-sericite...north-east and east contacts; its roof occurs under the centre of the deposit at a depth of 2.5 to 3 km (Fig. |  | | Journal (article/letter/editorial) | | hory/Erzgebirge (KHE). They belong to a bimodal dyke suite of aplites, felsic porphyries, microgranites...earlier has not been confirmed. One altered mafic dyke is interpreted as original microdiorite. All lamprophyres...(melts and/or fluids). On a local scale, the lamprophyre dykes intersected by greisen veins provided geochemical...favoured the cassiterite deposition. The timing of lamprophyre dykes also indicates that the mantle metasomatism...Introduction Lamprophyres are a specific group of mafic dyke rocks with mafic hydrous silicates – dark micas |  | Hrouda, F., Verner, K., Kubínová, Š., Buriánek, D., Faryad, S. W., Chlupáčová, M., Holub, F. (2016) Magnetic fabric and emplacement of dykes of lamprophyres and related rocks of the Central Bohemian Dyke Swarm (Central European Variscides) Journal of GEOsciences, 61 (4) 335-354 | Journal (article/letter/editorial) | | lamprophyres and related rocks of the Central Bohemian Dyke Swarm (Central European Variscides) František HROUDA1...the magnetic foliation is roughly parallel to the dyke plane and the magnetic lineation is horizontal with...magnetic minerals were oriented parallel to the dyke plane and their longer dimensions were parallel...Keywords: anisotropy of magnetic susceptibility (AMS), dyke-swarm, emplacement, Bohemian Massif, Variscides...approximately parallel to the dyke plane and the magnetic lineation, also parallel to the dyke plane, can be vertical |  | | Journal (volume) | | ...................... ..... ............. .. 14 De scription of the areas studied ............ ............................................... 31 Lamprophyre ........................... ........ ................................ ..... ........... 34 Lamprophyre ...... .. .... .............. ... ...... ................................... .. ...... .48 Lamprophyre ...... ................... .......... ..... ......... ....... ... .... .. ....... .... 131 Lamprophyre magmatism .. .. .... ........ ............ . |  | Štemprok, M., Seifert, T., Holub, F. V., Chlupáčová, M., Dolejš, D., Novák, J. K., Pivec, E., Lang, M. (2008) Petrology and geochemistry of Variscan dykes from the Jáchymov (Joachimsthal) ore district, Czech Republic. Journal of GEOsciences, 53 (1) 65-104 | Journal (article/letter/editorial) | | Republic Corresponding author Mafic and silicic dyke rocks, which occur in the Ag-U ore district of Jáchymov...fractionation of biotite. The Th/U ratios in all dyke rocks correspond to chondritic and crustal values...crust (~ 5 ‰ CDT). Bulk magnetic susceptibility of dyke rocks shows a general decrease from mafic to silicic...scale by fluids of diverse origin. Keywords: lamprophyre, granite porphyry, uranium mineralization, magma...1988; Rock 1991). The genetic relationship between dyke rocks and the origin of ore-bearing fluids has been |  | Pandey, Ashutosh, Chalapathi Rao, N.V., Chakrabarti, Ramananda, Pankaj, Praveer, Pandit, Dinesh, Pandey, Rohit, Sahoo, Samarendra (2018) Post-collisional calc-alkaline lamprophyres from the Kadiri greenstone belt: Evidence for the Neoarchean convergence-related evolution of the Eastern Dharwar Craton and its schist belts. Lithos, 320. 105-117 doi:10.1016/j.lithos.2018.09.005 | Journal (article/letter/editorial) | | Laboratory, Department of Geology, Centre of Advanced Study, Banaras Hindu Centre for Earth Sciences, Indian...mineralogical and geochemical study of three lamprophyre dykes with calc-alkaline to shoshonitic T affinities...al., 2000). Five distinct Paleoproterozoic mafic dyke swarms, Paleo-Mesoproterozoic crescent shaped Cuddapah...schist belt. PT 2.3. Lamprophyre magmatism in EDC Numerous Mesoproterozoic lamprophyre dykes are clustered...Mudigubba and a rare occurrence of a shoshonitic lamprophyre at Udiripikonda, within the Wajrakarur Kimberlite |  | | Journal (article/letter/editorial) | | Petrology 9 Springer-Verlag1992 Origin of Archean lamprophyre dykes, Superior Province, Canada: rare earth...Abstract. Hornblende- and clinopyroxene-phyric lamprophyre dykes exposed in the Roaring River Complex, Superior...Offprint requests to: R.A. Stern Introduction Lamprophyre dykes and related gabbro-pyroxenite bodies are...generating tonalitic-trondhjemitic magmas. As the lamprophyre-gabbro-pyroxenite association is dominated by...(Stern et al. 1989). It is significant that lamprophyre dykes and gabbropyroxenite bodies are spatially |  | | Journal (article/letter/editorial) | | regional metamorphim U-Pb, zircon, diorite porphyry dyke [33] 2720 ± 4 2674 ± 4 2680 ± 14 2677 ± 25 Strelninsky...Paleoproterozoic regional metamorphism? U-Pb, apatite from the dyke aged 2740 ± 11 Ma [31] [16] No data [16] [36]... Kuusamo, Hangaslampi U-Pb, monazite, porphyry dyke [40] [40] No data U-Pb, zircon, diorite 1872...No data [44] [45] [40] 1718 ± 9 Rb-Sr, lamprophyre dyke [41] [42] 1781 ± 18 Pb-Pb, monazite and...zircon, Ruoppalo intrusions U-Pb, monazite, porphyry dyke Method, Minerals and Rocks, Notes Post-Ore Rocks |  | | Journal (article/letter/editorial) | | mesothermal Au-veins and altered wallrock selvages at Val d'Or, in the Abitibi greenstone belt of Canada. The...u r m a l i n e veins h o s t i n g gold in the Val d ' O r district, in the Q u e b e c sector of the...2.1. T h e V a l d ' O r g o l d c a m p T h e Val d ' O r gold m i n i n g a r e a o f n o r t h w...Fig. 1. Location map and regional geology of the Val d’Or area, Quebec, modified after Vu et al. [12]...indicates the location of major gold deposits of the Val d'Or district, most of which occur within volcanic |  | Kerrich, R., Fryer, B. J., King, R. W., Willmore, L. M., van Hees, E. (1987) Crustal outgassing and LILE enrichment in major lithosphere structures, Archean Abitibi greenstone belt: evidence on the source reservoir from strontium and carbon isotope tracers. Contributions to Mineralogy and Petrology, 97 (2) 156-168 doi:10.1007/bf00371236 | Journal (article/letter/editorial) | | Strontium isotope ratios of tourmaline, piemontite, actinolite and scheelite mineral separates, characterized...east to west on the K C fault is 0.7031-0.7041 (Val d'Or), 0.7008-0.7022 (Bourlemaque), 0.7017-0.7019...of the structures, and their depth extent from drilling. Similarly, the total fluid flux can be estimated...locations, distributed along 300 km of fault zones from Val d'Or in the east to their western extremity near...7022 0.7014 0.7010 0.7013 0.7031 0.7017 0.7019 Val d'Or Pascalis (1) PC-I PC-6 PC-10 BD-1 2 3 4 5 |  | Carpenter, R. L., Duke, N. A., Sandeman, H. A., Stern, R. (2005) RELATIVE AND ABSOLUTE TIMING OF GOLD MINERALIZATION ALONG THE MELIADINETREND, NUNAVUT, CANADA: EVIDENCE FOR PALEOPROTEROZOIC GOLD HOSTED IN AN ARCHEANGREENSTONE BELT. Economic Geology, 100 (3) 567-576 doi:10.2113/gsecongeo.100.3.567 | Journal (article/letter/editorial) | | minimum age is constrained by undeformed, postore lamprophyre dikes emplaced at ca. 1830 Ma. Highly concordant...Yellowknife, NT, Canada X1A 2R3. ***Present address: Centre for Microscopy and Microanalysis, The University...Conglomerate 8 Mg3 dyke 535000 545000 b) DDH 96-42 + A B BIF SHRIMP sample Mg2 dyke Mg3 dyke X Lamprophyre...dip (over turned) 50 S2 foliation with dip Lamprophyre dikes Proterozoic age (~1830Ma) 50 Archean and/or...gneissic Mafic volcanic rocks, chlorite schist, actinolite schist, hornblende schist) and feldspar porphyry |
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