| | Journal (article/letter/editorial) | occurrenceof wairakite in spilitic rocks from St. Thomas, Virgin Islands, is of specialinterest for severalreasons...consolidationof this spilite. The oldest rocks of St. Thomas are the keratophyres and spilites of the Water...xenoliths. Length of section 5 inches. flow at Nadir, St. Thomas. Later field work showedthat there wereprobably...ol Werurrro lnou Sr. Tnouas ,q.NpWnrn.lrr St. Thomas n (mean)1.502+ 001 ^f-d 2Y, .0015to .0025...toWerne.r T.c.sln 2. X-Rev Dlu Wairaki (Coombs) St. Thomas (200) dA dA 6.84 6.85 (2rr) 40 80 3.65 | | | Journal (article/letter/editorial) | Ratios, and Logical Operator Algorithms John C. Mars† U.S. Geological Survey, Reston, Virginia 20192 Abstract...operator-derived mineral maps were able to map muscovite-rich Proterozoic granitic gneiss and Jurassic...algorithms were able to discriminate Fe-bearing muscovite from muscovite in the polymetallic (gold and silver)...supports previous studies that suggest Fe-bearing muscovite is closely associated with mineralization. Introduction...point off nadir, spatial resolution varies from 1.24 m at nadir to 1.38 m at 20° off nadir for the VNIR | | | Journal (article/letter/editorial) | mineralizationoccursascassiterite in quartz-tourmaline-muscovite greisenveinsat the SouthBischoffmine (Fig. 1;...MAGNETITE HEMATITE fault, Fig. 2), and one fault, the Nadir fault, has ............ caused so much offset...dependingon whether they occur aboveor belowthe Nadir fault (Figs.2, 6, and 7). PYRITE C HALCOPYRITE...bismuthinite are absent.Vein-ore relationshipsabove the Nadir fault indicatethe quartz-wolframiteveinsare preore...(1976). Concentriczoneshave been defined above the Nadir fault and are centered about tinted fluorite of | | | Journal (article/letter/editorial) | discriminating hydrothermal alteration minerals at Nevada, USA. Costa et al. (2015) assessed the potential of WV-3...Spatial resolution (m) Nadir: 0.31 20 Off-Nadir: 0.36 Nadir: 1.24 20 Off-Nadir: 1.38 Panchromatic P...2.185–2.225 2.235–2.285 2.295–2.365 – Nadir: 3.7 20 Off-Nadir: 4.12 WV-3 band SWIR-4, centered at 1... was provided by DigitalGlobe Inc. at Colorado, USA. This dataset was geometrically rotated to a north-up...Alteration Orthoclase, muscovite, quartz, montmorillonite, goethite, kaolinite Muscovite–illite, orthoclase | | | Report (issue) | McKelvey Forum on Mineral and Energy Resources U.S. Geological Survey Circular 995 DEPARTMENT OF THE...THE INTERIOR DONALD PAUL HODEL, Secretary U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director Free on application...application to the Books and Open-File Reports Section, U.S. Geological Survey, Federal Center, Box 25425, Denver...participation resulted in many positive contributions to U.S. Geological Survey programs in mineral and energy...Session 1 Gary R. Winkler, Charles H. Thorman; Thomas G. Hildenbrand, David A. Lindsey Technical Session | | | Journal (article/letter/editorial) | broad phyllic zone is characterized by illite/muscovite (sericite) which yields an intense Al-OH absorption...launched on NASA's Fig. 3. Laboratory spectra of muscovite, kaolinite, alunite, epidote, calcite, and chlorite...resampled to ASTER bandpasses. Spectra include muscovite, which is typical in phyllic alteration zone,...additional 4 day repeat coverage due to its off-nadir pointing capabilities. ASTER is a cooperative effort...it useful for regional mapping, though its off-nadir pointing capability extends its total possible field | | Shebl, Ali, Abdellatif, Mahmoud, Elkhateeb, Sayed O., Csámer, Árpád (2021) Multisource Data Analysis for Gold Potentiality Mapping of Atalla Area and Its Environs, Central Eastern Desert, Egypt. Minerals, 11 (6) 641 doi:10.3390/min11060641 | Journal (article/letter/editorial) | argillic (kaolinite and alunite), phyllic (illite/muscovite (sericite)), and propylitic (epidote, chlorite...Advanced Land Observing Satellite (ALOS) and has a nadir spatial resolution of 2.5m that enabled better discernment...clay minerals displayed strong absorption at b6, muscovite was recognized by notable absorption in bands...was extended between b6 to b9. Thus, calcite, muscovite, quartz, kaolinite, epidote, and chlorite were...was applied to ASTER bands to detect calcite, muscovite, quartz, kaolinite, epidote, and chlorite minerals | | Marini, Mattia, Della Porta, Giovanna, Felletti, Fabrizio, Grasso, Benedetta Marcella, Franzini, Marica, Casella, Vittorio (2019) Insight into Heterogeneous Calcite Cementation of Turbidite Channel-Fills from UAV Photogrammetry. Geosciences, 9 (5) 236 doi:10.3390/geosciences9050236 | Journal (article/letter/editorial) | points were2c) measured and three tilted by 45° from nadir) aerial (Figure acquiredfrom fromthe thesporadic...threeAfter oblique (camera tilted by 45◦with fromthe nadir) aerial blocks (Figure 2c) acquired from the HEXA-PRO...fragments from metamorphic rocks (orthogneisses with muscovite and garnet or epidote, micaschists, schists with...fragments from metamorphic rocks (orthogneisses with muscovite and garnet or epidote, micaschists, schists with...grains, black arrows), gneiss rock fragments (G), muscovite, (large crystal embedding several detrital grains | | | Book | Quartz Treasure chambers of Augustus II Surface lustre St George statuette Chalcedony Frederick the Great’s...surrounding one of the oldest stones in the Crown Jewels, St Edward’s sapphire – according to tradition, this...The angle between a and b is 120 degrees. In the USA, the trigonal is considered a division of the hexagonal...Agate Tourmaline Aventurine Turquoise Quartz USA Spain Jadeite Aquamarine Guatemala Sapphire Spinel...of weight in gemstones. 7 Locations 1 Canada 2 USA 3 Brazil 4 South Africa 5 Russia 6 China 7 Australia | | | Journal (article/letter/editorial) | Neoproterozoic Johnnie Formation, Death Valley, USA Alan J. Kaufman a,⁎, Frank A. Corsetti b , Michael...remarkable negative carbon isotope anomaly – to a nadir of near − 11‰ – that accompanies a dramatic rise...compositions of Johnnie Formation carbonates, Death Valley, USA δ13C (‰ VPDB) δ18O (‰ VPDB) δ13Corg (‰ VPDB) Δδ13C...anorthite, hydroxyapatite, barite, kaolinite, muscovite, orthoclase, phlogopite, quartz, and zircon. 3...at the base of the oolite and fall rapidly to a nadir of −11‰ at the base of the overlying micrites (Fig | | | Journal (issue) | olarak kömür uçucu külünden değerli metallerin ve nadir toprak elementlerinin geri kazanımı üzerine literatür...University - Cerrahpaşa Dr. Mehtap Gülsün Kılıç, Nadir Toprak Elementleri Araştırma Enstitüsü/ Rare Earth...olarak kömür uçucu külünden değerli metallerin ve nadir toprak elementlerinin geri kazanımı üzerine literatür...stratified and clay-bearing rock masses (ss. 330–335). Thomas Telford Publishing. Rocscience Inc. 2020. 2D Limit...olarak kömür uçucu külünden değerli metallerin ve nadir toprak elementlerinin geri kazanımı üzerine literatür | | | Journal (article/letter/editorial) | Hofstra U.S. Geological Survey, Box 25046, MS 973, Denver Federal Center, Denver, Colorado 80225, USA ABSTRACT...The presence of montmorillonite, kaolinite, or muscovite, among other minerals, will result in a substantial... and between ASTER montmorillonite gypsum muscovite ASTER Band Centers: 10 11 8.5 12 9.0 14...spectra of montmorillonite, kaolinite, gypsum, and muscovite from Salisbury et al. (1991), converted to qualitative...Landsat Thematic Mapper (TM) imagery acquired from the U.S. Geological Survey Seamless Data Distribution system | | Rowan, L. C., Hook, S. J., Abrams, M. J., Mars, J. C. (2003) Mapping Hydrothermally Altered Rocks at Cuprite, Nevada, Using the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), a New Satellite-Imaging System. Economic Geology, 98 (5) 1019-1027 doi:10.2113/gsecongeo.98.5.1019 | Journal (article/letter/editorial) | NEW SATELLITE-IMAGING SYSTEM LAWRENCE C. ROWAN,† U.S. Geological Survey, Mail Stop-954, Reston, Virginia...Pasadena, California 91109-8099 AND JOHN C. MARS U.S. Geological Survey, Mail Stop-954, Reston, Virginia...because of the presence of spectrally dominant muscovite in the siltstone and calcite in limestone, and...with the back-looking telescope as well as the nadir-viewing system. In addition, emitted radiation is...five-year lifetime. ASTER data is available from the U.S. Geological Survey EROS Data Center, Sioux Falls | | | Journal (article/letter/editorial) | individual journals for assistance. Where possible, their U.S. addresses are given. The following journals are...Mineralogical Society of America. 1015 Eighteenth St NW, Ste 601, Washington, D.C. 20036-5212 ANALYTICA...EARTH SCIENCES Blackwell Science Asia, 54 University St, Carlton South 3053, Victoria, Australia BASIN RESEARCH...Society Of Chemistry, Sales and Customer Care, Thomas Graham House, Science Park, Milton Road, Cambridge...2000 Florida Avenue N.W., Washington, DC 20009-1277 USA GEOPHYSICS Society of Exploration Geophysicists, | | | Journal (article/letter/editorial) | Band 01 0.52–0.60 Nadir looking Band 02 0.63–0.69 Nadir looking Band 03N 0.76–0.86 Nadir looking Band 03B...(2001), Ninomiya et al. (2005) Silicates Sericite–muscovite–illite–smectite Alunite–kaolinite–pyrophyllite...argillic alteration and mapping regolith, 3) Illite–muscovite–smectite minerals – common minerals in the surficial...the metamorphic rocks including actionalite, Muscovite, pyrope, epidote, glaucophane, chlorite, pyrophyllite..., 2003. USGS Digital Spectral Library splib05a. U.S. Geological Survey Open File Report 03-395. Clénet | | | Journal (article/letter/editorial) | 86001, USA b Planetary Sciences Institute, 1700 E.Ft. Lowell, Suite 106, Tucson, AZ 85719, USA Received...by viewing first forward (e ∼ 46◦ , ∼25◦ ), then nadir (e ∼ 0◦ ), then aft of the spacecraft position (e...6 Actinolite HS-116.4B 7 Biotite BUR-840 7 Muscovite WAR-5474 8 Serpentine HS-8.4B 7 Chlorite WAR-1924...of the intended five strips were acquired: the nadir view and the two western strips. Also shown in Figs...abundances in the two data sets is the effect of off-nadir viewing geometries associated with the edges of | | | Journal (article/letter/editorial) | m resolution. The swath width is 60 km, but off-nadir pointing capability extends the total cross-track...the phyllic alteration, the analyses detected muscovite, illite, and quartz as major phases, and kaolinite...quartz and albite along with minor amounts of muscovite, illite, montmorillonite and goethite; 3) In propylitic...quartz as major phases, with minor calcite and muscovite; 4) For sodic–calcic alteration, the analyses...silicic alteration, the major phases are quartz, muscovite and illite. 3.2. Spectral properties To find suitable | | | Report (issue) | Field Trip Guidebook Circular 1264 U.S. Department of the Interior U.S. Geological Survey Front Cover...Burton Circular 1264 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior...Gale A. Norton, Secretary U.S. Geological Survey Charles G. Groat, Director U.S. Geological Survey, Reston...Reston, Virginia: 2004 Free on application to U.S. Geological Survey Information Services Box 25286, Federal...purposes only and does not imply endorsement by the U.S. Government. Ill Preface The 2004 Joint Northeast-Southeast | | | Book | :•... I J • ; .. , First published 1974 in USA by Galahad Books A division of A & W Promotional...composed of sial; the ocean floor and the oceanic islands appear to be mainly composed of sima. At a depth...mineral. BELOW Cleavage in one direction Examples: Muscovite Mica Biotite mica Topaz Chlorite _/____/ Cleavage...garnets are seen in a finer ground mass of mica (muscovite), quartz and iron oxide. LEFT ' . --f;• v~...garnets are recognized by the typical black colour Muscovite micas are the highly-coloured minerals . the quartz | | | Book | to be and the has been eroded away. oceanic islands appear to be mainly composed of sima. At a depth...mineral. Cleavage in one direction Examples: Muscovite Mica Biotite mica Topaz Chlorite Cleavage in...garnets are seen in a finer ground mass of mica (muscovite), quartz and iron oxide. BELOW LEFT View B under...are recognized by the typical black colour. Muscovite micas are the highly-coloured minerals, the...or knife (hardness | _ of 3 or 3S less) 24 Muscovite In fibrous masses which yield Talc thin flexible | | Mielke, C., Muedi, T., Papenfuss, A., Boesche, N.K., Rogass, C., Gauert, C.D.K., Altenberger, U., de Wit, M.J. (2016) Multi- and hyperspectral spaceborne remote sensing of the Aggeneys base metal sulphide mineral deposit sites in the Lower Orange River region, South Africa. South African Journal of Geology, 119 (1) 63-76 doi:10.2113/gssajg.119.1.63 | Journal (article/letter/editorial) | region beyond 2000 nm, due to an appreciable muscovite content in the rock. The gossan exhibits a shallow...a dominant mica absorption feature due to its muscovite content shown in Figure 3. After the field spectroscopic...Gossan Quartz, Muscovite, Goethite, Illite Big Syncline Schist Quartz, Muscovite, Microcline, Sanidine...Sanidine Swartberg Schist Quartz, Muscovite, Hematite Swartberg Garnet Quartzite Quartz, Magnetite,...Swartberg Rock Dump Magnetite, Pyrite, Jarosite, Muscovite, Almandine, Pyrope Gamsberg Gossan Hematite | | | Journal (article/letter/editorial) | viewing angles, ranging from 8.59 to 5.73 degrees off nadir, resulting misregistration (Rockwell and Hofstra...features of a phyllic altered rock, composed of muscovite and is nearly identical to the ABRLO algorithm...) ( ) 𝐵𝑎𝑛𝑑7 > 1.03 (2) 𝐵𝑎𝑛𝑑6 ( ) Muscovite usually shows Al-OH absorption features only near...applied to extract the Al-OH absorption feature of muscovite, while the ratio 5/6 scan distinguishes phyllic...(Mongolia) after evaluating them in the Cuprite region (U.S.). 4.2.3 . ASTER TIR mineralogical indices 14 | | Takodjou Wambo, Jonas Didero, Pour, Amin Beiranvand, Ganno, Sylvestre, Asimow, Paul D., Zoheir, Basem, Salles, Rodrigo dos Reis, Nzenti, Jean Paul, Pradhan, Biswajeet, Muslim, Aidy M. (2020) Identifying high potential zones of gold mineralization in a sub-tropical region using Landsat-8 and ASTER remote sensing data: A case study of the Ngoura-Colomines goldfield, eastern Cameroon. Ore Geology Reviews, 122. 103530pp. doi:10.1016/j.oregeorev.2020.103530 | Journal (article/letter/editorial) | California Institute of Technology, Pasadena, CA 91125, USA 4Department 5University 6Centre of Geology, Faculty...veins associated with zones of pyritization, muscovite/sericite, iron oxides, and silicification. Principal...discrimination of hematite, jarosite, kaolinite, muscovite, chlorite and epidote at district scale. The Automated...characterized by silicification, hematization, muscovite-illite formation (sericitization), and pyritization...covering the study area was obtained through the U.S. Geological Survey Earth Resources Observation and | | | Journal (issue) | Hong Kong 691 Gem Notes Baryte from South Dakota, USA| Gems from Mong Long, Myanmar|Pyrite and other sulphides...Cambridge, Massachusetts, USA; Edward Boehm, RareSource, Chattanooga, Tennessee, USA; Maggie Campbell Pedersen...Emmett, Crystal Chemistry, Brush Prairie, Washington, USA; Emmanuel Fritsch, University of Nantes, France;...University of British Columbia, Vancouver, Canada; Thomas Hainschwang, GGTL Laboratories, Balzers, Liechtenstein;...E. Post, Smithsonian Institution, Washington DC, USA; Andrew H. Rankin, Kingston University, Surrey; Benjamin | | | Book | Quartz Treasure chambers of Augustus II Surface luster St. George statuette Chalcedony Frederick the Great’s...cut 067 068 STUART SAPPHIRE Octagonal rose-cut St. Edward’s Sapphire Velvet cap with ermine band ...oldest known stones clearly identified as sapphire is St. Edward’s Sapphire: it is believed to date from the...of Persia 1700 1800 1747 The ruby is looted by Nadir Shah’s commander Ahmad Shah, later king of Afghanistan...1851 1739 The ruby is stolen by Persian ruler Nadir Shah during an attack on Delhi 20th century onward |
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