 | Ngoc Khoi, Nguyen, Hauzenberger, Christoph A., Anh Tuan, Duong, HĂ€ger, Tobias, Van Nam, Nguyen, Thuy Duong, Nguyen (2016) Mineralogy and petrology of gneiss hosted corundum deposits from the Day Nui Con Voi metamorphic range, Ailao ShanâRed River shear zone (North Vietnam) Neues Jahrbuch fĂŒr Mineralogie - Abhandlungen Journal of Mineralogy and Geochemistry, 193 (2) 161-181 doi:10.1127/njma/2016/0300 | Journal (article/letter/editorial) | | are ilmenite, magnetite, rutile, plagioclase, muscovite, biotite, apatite, zircon, boehmite and iron stains...gneisses indicate that the rocks reached ~300 °C at ~23 Ma. Key words: corundum deposit, gneiss, Day Nui...several new mining sites including Tan Huong, Truc Lau, Km 13, Tan Dong, Hoa Cuong, Cam An, Bao Ai, Ngoi Nhau...gneiss-hosted corundum deposits and occurrences in Yen Bai province (North Vietnam). Modified from the Yen Bai electronic...which stretches from Lao Cai province southeastward to Yen Bai province. This mountain range is bound |  | Chen, Zhuo, Chen, Jianping, Liu, Tao, Li, Yunfeng, Yin, Qichun, Du, Haishuang (2023) Regional Quantitative Mineral Prospectivity Mapping of W, Sn, and Nb-Ta Based on Integrated Information in Rwanda, Central Africa. Minerals, 13 (2) 189 doi:10.3390/min13020189 | Journal (article/letter/editorial) | | com/journal/minerals Minerals 2023, 13, 189 2 of 23 supervised algorithms may perform more accurate...and testing of mineral prospectivity results [21â23]. Both positive and negative samples, and the modeling...metallogenic belts Minerals 2023, 13, 189 3 of 23 and prospective areas of W, Sn, Nb-Ta were delineated...south by Burundi, and on the west by the Democratic Republic of the Congo. The country lies 120 km south...G4 granites [47]. A regional pegmatite zonation 30 km west-southwest of the Nyakabingo deposit in GatumbaâGitaramais |  | | Book | | and Locality Index, Author Index, 651 Rwanda-Burundi, 500 XI 627 PREFACE This book, family comprehensive...small large on 12th given and concluded from 23 in and beryl. as date for same controversy...Tavernier brought back gems of great value. The 23 latest edition of his As for the emerald, was...original Latin version, only first Pliny the Elder (23-79 or It contains History. many of them ancient...but the Red Sea which according reasonable more km) from Coptos passed center for these district |  | | Journal (article/letter/editorial) | | 4â1.7 GPa, corresponding to crustal depths of c. 50 km. MaïŹc granulites contain abundant reaction textures...resulted in formation of eclogites approximately 300 km north of Payer Land. The Payer Land granulites comprise...in north-west Payer Land (7428Âą)7447ÂąN, 2230Âą)2340ÂąW) during an investigation of a local, positive...map area. NEGEP ÂŒ North-East Greenland Eclogite Province. the Payer Land region experienced the same crustal...in the Caledonian North-East Greenland eclogite province (Gilotti, 1993; Brueckner et al., 1998), or exhibits |  | Haines, P.W., Kirkland, C.L., Wingate, M.T.D., Allen, H., Belousova, E.A., GrĂ©au, Y. (2016) Tracking sediment dispersal during orogenesis: A zircon age and Hf isotope study from the western Amadeus Basin, Australia. Gondwana Research, 37. 324-347 doi:10.1016/j.gr.2015.08.011 | Journal (article/letter/editorial) | | two metasedimentary units in the Charters Towers Province of Queensland; a KâS test indicates that these...It was accompanied by at least 100 km of shortening and 20â40 km of uplift (e.g. Flöttmann et al., 2004;...region The Musgrave region is a c. 750 km long and up to c. 250 km wide west-northwest trending belt of...outlier Rudall Province Pilbara Craton W Officer Basin 24° Charters Towers Province Ngalia Basin Aileron...Aileron Province Amadeus Basin Thin Canning over Officer Basin Warumpi Province Anakie Inlier Irindina |  | | Report (issue) | | greater than 152 m (500 ft) in thickness and 0.8 km 2 (0.3 mi 2 ) in area at the ground surface. The...more than 152 m (500 ft) thick and of more than 0.8 km 2 (0.3 mi 2 ) in area were selected. For each locality...the surface exposure is apparently larger than 0.8 km 2 (0.3 mi 2 ). These constraints were arbitrarily...nuclear wastes, and (3) a surface area of 0.8 km 2 (0.3 km 2 ) might be the minimum extent required for...bibliography, notably maps in the l:250,000-scale (2.5 km/ cm or 4 mi/in.) series published by the US6S, Lockard |  | | Journal (article/letter/editorial) | | available. 157 31oE 28"ÂŁ O~A~ u ~ j 23"5 24"5 27'5 ,\ ! km 0 DO stratigraphic unit --~younger...Ohrigstad, 20 Potgietersrust, 21 Thabazimbi, 22 Marico, 23 Koster, 24 Hekpoort (type locality of paleosol)....glass granules was traced over an area of about 500 km 2 (Reimer, 1983a,b). It was initially interpreted...small elongated bodies along contacts between muscovite-bearing pegmatites and basic rocks. Locally they...be traced at highly variable thickness for some 8 km along strike. Thinner bands occur in places below |  | | Journal (article/letter/editorial) | | calc-alkaline intrusive rocks, in the Superior province of Quebec. It is best known for being one of the...within the Opatica subprovince of the Superior province, Quebec, Canada. The deposit has been described...thrust-bounded Troilus domain is over 20 km in strike length and ca. 2 km wide in the vicinity of the deposit...Rhyolites? 00 0N 1 km 23 60 00 Mafic sheets 00 E 54 40 Amphibolite 23 Granite E 56 J5 Zone...the rocks (i.e., abundance of biotite and/or muscovite). Amphibolite in the main ore zone, for example |  | | Book | | batholith, Cornwall 14.2.2 Uranium from Limousin province (Massif Central, France) Box 14.2 Kaolin and...= â) or other Al-rich minerals (for example, muscovite) will increase it (A/CNK > 1). On such a basis...granites, containing biotite and muscovite, or granites containing only muscovite, and/or cordierite, garnet...distinguish. Presence or absence of primary (magmatic) muscovite is a distinctive feature in identifying the respective...(°C) eu r I 150 5 310 10 S-type M aj N km 0 La c 45° 55' N 590 20 700 25 800 30 880 |  | Ortega-GutiĂ©rrez, Fernando, Solari, Luigi A., SolĂ©, JesĂșs, Martens, Uwe, GĂłmez-Tuena, Arturo, MorĂĄn-Ical, Sergio, Reyes-Salas, Margarita (2004) Polyphase, High-Temperature Eclogite-Facies Metamorphism in the ChuacĂșs Complex, Central Guatemala: Petrology, Geochronology, and Tectonic Implications. International Geology Review, 46 (5) 445-470 doi:10.2747/0020-6814.46.5.445 | Journal (article/letter/editorial) | | decompression melting that occurred between 18 and 23 kbar and 700â770°C. This decompressional melting...by Gomberg et al. (1968), whereas at Sacapulas, 80 km west of CobĂĄn, Bohnenberger (1966) described unconformable...(whole rockâmineral Rb-Sr isochron, and Ar-Ar on muscovite) for the Matanzas gran- ite which, according...155 0.347 â 23 6.336 0.112 2.415 0.001 0.217 2.394 0.035 1.525 1.478 1.137 0.305 â 23 16.037 15.930...002 0.404 2.219 0.031 1.507 1.430 1.250 0.388 â 23 98.302 96.906 97.680 41.017 41.676 41.464 1.010 |  | | Report (volume) | | the Copyright Licensing Agency. 90 Tottenham Court Road, London W1P 9HE. Users registered with the Copyright...Affiliated East-West Press PVT Ltd G-l 16 Ansari Road. Daryaganj. New Delhi 110002 India Orders: Tel.... VAN STAAL2 Department of Earth Sciences, Parks Road, Oxford OX I 3 PR, UK -Geological Survey of Canada...Department of Earth Sciences, University of Oxford, Parks Road, Oxford OX1 3PR, UK (e-mail: stuartm@ earth.ox....Palaeontology, Natural History Museum, Cromwell Road, London SW7 5BD, UK ^Department of Geology, Trinity |  | | Report (issue) | | Mine Seagull Creek occurrence Side trip along Cano) Road to Ross River Side trip to Atlin, British Columbia...Rapids occurrence Road cut at km 1480 Aishihik Lake area occurrences The Haines Road Kathleen River asbestos...gold deposits Volcanic ash The Klondike Road The Klondike Road: Whitehorse-Stewart Crossing Section Big...Hill mines Mayo area placer deposits The Klondike Road: Stewart Crossing-Dawson Section Stewart River placer...Dempster Highway Klondike gold fields The Sixtymile Road Clinton Creek Mine Sixtymile River goldfields 101 |  | | Report (issue) | | A. BartholomĂ€ 1995, 368 pages, 259 illustrations 23 Carbonate Mud-mounds Their Origin and Evolution Edited...Environmental Science Research Kingston University Penrhyn Road Kingston upon Thames KT1 2EE UK 9781405179225_1_pre...Street, Malden, MA 02148â5020, USA 9600 Garsington Road, Oxford OX4 2DQ, UK 550 Swanston Street, Carlton...(Hauterivian) in central NeuquĂ©n Basin (northwest NeuquĂ©n Province), Argentina, 341 G.D. Veiga, L.A. Spalletti and...Wells-next-the-Sea, Norfolk (England). Sedimentology, 23, 329â346. Dade, W.B. and Friend, P.F. (1998) Grain-size |  | | Report (issue) | | ____________________ III 3 4 5 6 6 12 14 18 19 23 25 30 33 35 58 UNITED STATES GEOLOGICAL SURVEY...Technical Data, U.S. Geological Survey, 345 Middlefield Road, Menlo Park, Calif. 94Q25; Scholl and Hopkins: $21... Regional Conservation Manager, 345 Middlefield Road, Menlo Park, Calif. 94025. The office of the Alaska-Pacific...the Pacific Coast Field Center, 345 Middlefield Road, Menlo Park, Calif. 94025; the Branches of Theoretical...Hydrologist, Western Region Field Center, 345 Middlefield Road, Menlo Park, Calif. 94025. The water resources program |  | YAMATO, P., AGARD, P., GOFFĂ, B., DE ANDRADE, V., VIDAL, O., JOLIVET, L. (2007) New, high-precision P?T estimates for Oman blueschists: implications for obduction, nappe stacking and exhumation processes. Journal of Metamorphic Geology, 25 (6) 657-682 doi:10.1111/j.1525-1314.2007.00722.x | Journal (article/letter/editorial) | | kbar, <300 C) and the As Sifah eclogites (Pmax 23 kbar; Tmax 600 C).TWEEQU multiequilibrium thermobarometry...58Ë40 Ruwi 23Ë35 30° 30° 2 km F Persian Gulf 25° (Makra n) subd uctio 250 km YS Z SZ AW...SZ Yenkit 23Ë30 aud As Sheikh ? el A Hulw Jeb Rija HSZ bu D ? ? As Sifah ? 23Ë25 Diqdah...ESTIMATES FOR OMAN BLUESCHISTS 659 10 ËC .km 22 -1 5ËC . km -1 24 20 LAS ? 18 whereas the northern...uncomformably upon the ophiolite. Pressure (kbar) 16 -1 .km 5ËC UAS 14 1 D-Ash 12 HULW R-Q 4 10 2 6 |  | | Report (volume) | | same locality also piemontite with Pb content up to 23 wt% PbO (~0.6 Pb pfu) is described (Bermanec et al...Physical & Chemical Properties of Epidote Minerals 23 evidence that the MREE and HREE also substitute...in ternary feldspars, or as K+ in the fluid, muscovite-phengite instead or together with paragonite can...environments, where Ca and Al are enriched (Fig. 23). The one is in meta-igneous rocks, where the enrichment...cumulates. They are also found as part of Figure 23. Simplified ACF diagram, showing the close chemical |  | | Book | | Developme nt Institute of Pakistan, 230, Nazimuddi n Road F-7 /4, Islamabad, Pakistan. Dr. D. BANNERT, Dr...Acknowledgements Pakistan covers a land area of 796,096 km 2 between the latitudes 24°N to 37°N and the longitudes................ ........ 4.114 Alkaline igneous province...... ................... ......... 4.115 Post...country is about 1,700 km, and its east-west width is approximately 1,000 km. In the north and west,...the famous silk route which is now an all weather road called the Karakorum Highway. The legendary Khyber |  | | Book (edition) | | Primary Index primary Supplementary Dam carrying road Levee Sand Strip mine Perennial lake; Intermittent...Primary highway Secondary highway Light duty road Unimproved road Trail Dual highway Dual highway with median... Metric and English Units Compared Units 1 kilometer (km) 1 meter (m) 1 centimeter (cm) 1 mile (mi) 1 foot...22 Location and Distance on Earth 291 EXERCISE 23 The Metric System, Measurements, and Scientific Inquiry...Figure 1.10 Sheets of elastic minerals, like muscovite, can be bent but will snap back when the stress |  | | Book (edition) | | distance traveled by light at a speed of 300,000 km/secâ186,000 mi/secâduring a four-year span). The...approximation a spherical body with a radius of about 6400 km (3977 mi) that spins once per day on its axis. ...about 365% days, at a mean distance of 149 million km (93 million mi). Because of the tilting of the rotational...first determination of its circumferenceâ 38,400 km (23,862 mi). Modern-day at its center. Such ...determined to be 6356.9 km (3950.2 mi) and that from the center to the equator, 6378.4 km (3963.5 mi). The |  | | Book (edition) | | wall of the Grand Canyon is composed of almost 1.5 km (1 mi) of strata in which a number of geological...into partial equilibrium with the carbon-14 already 23 GEOLOGY Fig. 1-17 Bristle-cone pine growing in...large that light traveling at a speed of 300,000 km/sec (186,000 mi/sec) may take many millions and even...travels in a vacuum at a velocity of some 300,000 km/sec (186,000 mi/sec). Our moon has always been a... balloonists carried instruments to more than 15 km (9.3 mi) above the earth, but the 34 THE SOLARSYSTEM |  | | Book | | this to the volcanoes of the Madeira volcanic province and explain, in some detail, the origin of many...Lanzarote and Fuerteventura, are approximately 100 km from the African coast. Measured from the easternmost...entire archipelago stretches over approximately 500 km in total. The Canary Islands are considered part...islands are close to the African continent (B100 km) and are located on the passive continental margin...but the central and western islands (B200 to 600 km off Africa) lie on crust of increasingly oceanic |  | Draut, Amy E, Clift, Peter D, Hannigan, Robyn E, Layne, Graham, Shimizu, Nobumichi (2002) A model for continental crust genesis by arc accretion: rare earth element evidence from the Irish Caledonides. Earth and Planetary Science Letters, 203 (3) 861-877 doi:10.1016/s0012-821x(02)00931-7 | Journal (article/letter/editorial) | | Connemara metamorphic terrane and South Mayo volcanic province. Pre-, syn-, and post-collisional volcanic and...maÂąc plutons during the Grampian Orogeny (e.g., [23]) although the oldest Dalradian members may have...igneous and a metamorphic replacement mineral (e.g., [23]). Cordierite^garnet^sillimanite contact metamorphism...Âąelds that correspond to a midcrustal depth of V18 km [23]. The gabbros were intruded by late syn-collisional...replacement metamorphic mineral in the CLW (e.g., [23]). Such strong LREE enrichment above average continental |  | | Book | | WYLIE POAG U.S. Geological Survey 384 Woods Hole Road Woods Hole, MA 02543-1598 USA Email: wpoag@usgs...Only eight impact structures with diameters of 80 km or larger have been discovered on Earth (Fig. 1.1;...ical category encompassing craters generally 200 km or more in diameter and characterized by three or...Puchezh-Katunki) as representatives of the 80-100-km-diameter class of complex impact craters (having...Bay (85-km diameter), Montagnais (45-km diameter), Mjelnir (40-km diameter), and Ust Kara (25-km diameter) |  | | Book | | are border facies of basins, located less than 60 km from the deltaic zones. Knowing this crucial observation...Sedimentary pyrite formation. Am. J. Sc., 268. p. 1-23 (1970). BUERGER, M. J. : The lineage structure of...La sâŹrie ordovicienne et silurienne d'Almad&i (Province de Ciudad Real, Espagne). Point des connaissances..."Quartzite du Criadero" (= Valentien) d Almaden (Province de Ciudad Real, Espagne). Colloque sur l'Ordovicien...extremely rich metallogenic province called the Central African Copperbelt. This province is made of two distinct |  | | Report (issue) | | interpretations References cited .......... 13 13 15 15 23 23 24 24 26 28 ILLUSTRATIONS FIGURE 1. 2. 3. 4. 5...depressus Upper 24 Scaphites ventricosus Middle 23 Inoceramus deform is Lower 22 21 Inoceramus erectus...overthrust belt have been displaced eastward at least 20 km (12 mi) by faulting (De Chadenedes, 1975; Royse and...late Turonian to middle Coniacian (fig. 2, zones 18-23). NE x/4 sec. 3, T. 24 N., R. Ill W., Sweetwater...5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Location R, sec . T. Lease name Operator |
|
