 | Allaz, Julien, Raschke, Markus B., Persson, Philip M., Stern, Charles R. (2015) Age, petrochemistry, and origin of a REE-rich mineralization in the Longs Peak-St. Vrain batholith, near Jamestown, Colorado (U.S.A.) American Mineralogist, 100 (10) 2123-2140 doi:10.2138/am-2015-5253 | Journal (article/letter/editorial) | | the Longs Peak-St. Vrain batholith, near Jamestown, Colorado (U.S.A.) Julien Allaz1,*, Markus B. Raschke2...Geological Sciences, University of Colorado Boulder, 399 UCB, Boulder, Colorado 80309, U.S.A. Department of...of Chemistry, and JILA, University of Colorado, Boulder, Colorado 80309, U.S.A. 3 Department of Geology...Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, Colorado 80401, U.S.A. 2 Abstract...syenogranite Silver Plume-type intrusion near Jamestown, Colorado (U.S.A.). Irregular-shaped centimeter- to |  | Stern, Charles R., Allaz, Julien M., Raschke, Markus B., Farmer, G. Lang, Skewes, M. Alexandra, Ross, Jeremy T. (2018) Formation by silicate–fluoride + phosphate melt immiscibility of REE-rich globular segregations within aplite dikes. Contributions to Mineralogy and Petrology, 173 (8) doi:10.1007/s00410-018-1497-7 | Journal (article/letter/editorial) | | immiscibility of REErich globular segregations within aplite dikes Charles R. Stern1 · Julien M. Allaz1,3 · Markus...Germany, part of Springer Nature 2018 Abstract Aplite dikes intruding the Proterozoic 1.42(± 3) Ga Longs...Silver Plume-type peraluminous granite near Jamestown, Colorado, contain F, P, and rare earth element (REE)-rich...features and geochemical data suggest that the aplite and REE-rich globular segregations co-existed as...silicate–fluoride + phosphate melts. Although monazite-(Ce) and uraninite U–Th–Pb microprobe ages for the |  | | Journal (article/letter/editorial) | | accepted abstracts follow. THE GARNET LINE IN OXFORD COUNTY, MAINE, PEGMATITES. M. M. Felch, W. B. Simmons...intermediate and core zones in many of the Oxford County, Maine, pegmatites. This study primarily focuses...centuries. The garnet line plays an important role in mining these two localities, as it is a zonation indicator...Rochester Mineralogical Symposium time-(Y), monazite-(Ce), and pollucite, which were not previously known...similar to the model proposed for the San Diego County pegmatites (Webber et al. 1997, 1999). The garnet |  | | Journal (issue) | | Complex, Wausau Syenite Compley, Marathon County, Wisconsin, USA……………………………………………..21 DOLGOPOLOVA, A.,...Emmons pegmatite, Greenwood, Oxford Co., Maine, USA: implication for the origin of this unusual para...evolution of the Emmons rare-element pegmatite (Maine, USA)…………………………………………37 GUASTONI, A., GENTILE, P., NESTOLA...highly evolved pegmatites: the case study of the Li-aplite-pegmatites from the Central Iberian Zone (Spain...of the Berry-Havey rare-element pegmatite (Maine, USA): preliminary results……………………………………………………………………… |  | | Journal (article/letter/editorial) | | Minerals of the Golden Horn Batholith OKANOGAN COUNTY, WASHINGTON 450 ROCKS & MINERALS T H E NORTH...tinted blue by micro scopic arfvedsonite. The aplite locally contains cavities, to 10 cm, that typically...of these zones—referred to as the Okanoganite Boulder (Becker, 1985)—contains a complex suite of minerals...chevkinite, euxenite-(Y), fluorite, microcline, monazite, okanoganite( Y ) , pyrochlore, quartz, titanite...Albite Anatase Arfvedsonite Astrophyllite Bastnasite-(Ce) Catapleiite Cerussite Chevkinite Chlorite Chrysocolla |  | Černý, Petr, Masau, Morgan, Goad, Bruce E., Ferreira, Karen (2005) The Greer Lake leucogranite, Manitoba, and the origin of lepidolite-subtype granitic pegmatites. Lithos, 80 (1) 305-321 doi:10.1016/j.lithos.2003.11.003 | Journal (article/letter/editorial) | | University of New Orleans, New Orleans, LA 70148, USA c Inukshuk Exploration Inc., 21861 44A Avenue, Langley...pegmatite district at the Manitoba–Ontario boundary in central Canada. (b) Geology of the district: open...among the five leucogranites of the Winnipeg River district that were emplaced along subvertical 307 faults...pegmatitic leucogranite (Fig. 3a); (iii) layered sodic aplite facies, slightly more abundant in the southern...pegmatite facies, commonly associated with the aplite and locally consolidated on the aplitic substrate |  | | Journal (article/letter/editorial) | | Mineralogist, Volume 104, pages 1117–1130, 2019 Monazite and xenotime solubility in hydrous, boron-bearing... Canada 1 Abstract We conducted a series of monazite and xenotime dissolution experiments in a boron-bearing...piston-cylinder apparatus. We present new measurements of monazite and xenotime solubility in hydrous (~3 wt% water)...18.3 0.3 125499 3356 RT and another for monazite: lnLREE 18.6 1.5 129307 18163 . RT ...phosphorous, the concentration of LREE needed for monazite saturation is within the uncertainty of the Y |  | Harlov, Daniel E., Meighan, Corey J., Kerr, Ian D., Samson, Iain M. (2016) Mineralogy, Chemistry, and Fluid-Aided Evolution of the Pea Ridge Fe Oxide-(Y + REE) Deposit, Southeast Missouri, USA. Economic Geology, 111 (8) 1963-1984 doi:10.2113/econgeo.111.8.1963 | Journal (article/letter/editorial) | | Fe Oxide-(Y + REE) Deposit, Southeast Missouri, USA* Daniel E. Harlov,1,2 Corey J. Meighan,3 Ian D. Kerr...Ontario Geological Survey, P.O. Box 25046, Denver, Colorado 80225 of Earth and Environmental Sciences, University...the St. Francois Mountains, southeast Missouri, USA. It consists of a series of altered zones composed...inclusions of monazite, iron oxide, and quartz inclusions, plus minor xenotime. Monazite and minor xenotime...magnetite ore. Monazite and xenotime typically occur as inclusions within both oxides. Monazite-(Ce) and xenotime(Y) |  | | Journal (article/letter/editorial) | | paragenetic variations of CGM at the field or district scale. In this study, which is part of an extensive...the REE-bearing minerals allanite-(Ce), ishikawaite and monazite-(Ce) (Francis 1987, Hanson et al. 1998)...pegmatite, however, is poorly exposed, and future mining may reveal the presence of F-rich minerals. Microlite...(von Knorring & Condliffe 1984), Brown Derby in Colorado (Černý & Ercit 1985), Greer Lake, Manitoba (Černý...1992), uncontaminated pegmatites of the Jihlava district, Czech Republic (Černý & Němec 1995), Chèdeville |  | | Report (issue) | | Occurrence Of Monazite GEOLOGICAL SURVEY PROFESSIONAL PAPER 530 The Geologic Occurrence Of Monazite By WILLIAM...of monazite and of the geologic A review controls affecting the amount of thorium in monazite UNITED...________________ - ___ -_-_------Description of monazite __ ---- _____________ -----Discovery, synonymy...Age relations _________________ ----_-_-_--------Monazite localities ___ --- _______ -- ____________ -----_Africa... 43 43 43 43 46 47 47 48 48 48 49 50 50 51 Monazite localities-Continued Asia ______________ - -- |  | | Journal (article/letter/editorial) | | 2000 Lakeshore Drive, New Orleans, Louisiana 70148, USA Brendan M. LAURS Gemological Institute of America... 5345 Armada Drive, Carlsbad, California 92008, USA Abstract Yellow to yellow-green tourmaline was analyzed...de transfert des charges intervalences Mn2+–Ti4+, ce qui concorde avec les études spectroscopiques antérieures...of similar material from Nepal (Sankhuwa Sabha District) and the Democratic Republic of the Congo. Compositions...of gemquality yellow elbaite has been the Canary mining area b Fig. 1. a. Canary-yellow “fluor-elbaite” |  | | Journal (article/letter/editorial) | | 2012; Papp 2012). World production of Ta from mining (excluding production from Ta contained in Sn slags)...synthetic concentrates, 20 % as a by-product of Sn mining and 10 % was sourced from secondary concentrates...3 Euxenite-(Y) ([Y,Ca,Ce,U,Th][Nb,Ta,Ti]2O6) 39.8 Fergusonite-(Nd) ([Nd,Ce][Nb,Ti]O4) Strüverite...66.0–70.1 Trace–16.9 Orthorhombic Fersmite ([Ca,Ce,Na] [Nb,Ta,Ti]2[O,OH,F]6) Orthorhombic Isometric...Lueshite (Perovskite) (NaNbO3) Loparite (Perovskite) ([Ce,La,Na,Ca,Sr][Ti,Nb]O3) 9.7–15.1 34.3–86.8 Trace–4 |  | | Book | | T. J. Bornhorst, P. Brandes, R. Clark (Cliffs Mining Services Co.), B. C. Cornilsen, R. V. Dietrich...helpful suggestions throughout the project; to Ashton Mining of Canada, Inc. and Crystal Exploration, Inc.,...APPENDIX I: MICHIGAN MUSEUMS AND EXHIBITS FEATURING MINING, MINERALS, ROCKS, AND FOSSILS .......................243 APPENDIX II: MINERAL SPECIES LISTED BY COUNTY ...............................248 ABOUT THE AUTHORS...basaltic lavas and pyroclastic rocks, accompanied by dikes of diabase and gabbro. Metamorphism of varying degrees |  | | Book | | nearly all metals and the inevitable closing of many mining operations, it is a matter of the industry's survival...decision, not only is a handy volume affered to the mining and processing community but also duplication of...Terbium (Tb, Z = 65) Dysprosium (Dy, Z = 66) Cerium (Ce, Z =58) Holmium (Ho, Z = 67) Praseodymium (Pr, Z...Bastnaesite-Fluorite-Barite Deposit of the Kizilcaören District, Eskisehir, Turkey. G. Morteani and M. Satir (with...Granite-Hosted Tantalum Deposits: An Approach via District Analysis. P. 1. Pollard (with 1 Figure) . . . |  | | Report (issue) | | · as a joint program of the Manhattan Engineer District and its successor, the U. S. Atomic Energy Commission...the Central City district and adjoining areas, Gilpin and Clear Creek Counties, ·Colorado, by Paul K. Sims...deposits in Golden Gate Canyon, Jefferson County, Colorado, by John W. Adams and Frederick Stugard, J..._________ -- -- ------Uranium deposits of the Boulder batholith, Montana, by George E. Becraft______...to pitchblende-bearing veins at Marysvale, Piute County, Utah, by George W. Walker and Frank W. Osterwald |  | | Journal (article/letter/editorial) | | of felsic magmatism outlined by composite ring dikes of porphyritic quartz syenite. The centers are typically...porphyry that are partially outlined by the ring dikes (Creasy and Eby 1993). A number of the centers have...portion of the WMB with the intrusion of several ring-dikes and granite porphyries between 200 and 190 Ma. This...and the Albany Porphyritic Quartz Syenite ring-dikes in the eastern portion of the batholith. The eruption...contemporaneous with the emplacement of the ring-dikes (173–168 Ma). This phase of igneous activity in |  | | Report (volume) | | geology and mineral deposits of the Berenguela district, northwestern Bolivia By Alan R. Wallace, Richard...Forest and the Dillon Ranger District of the Arapaho National Forest, Colorado By Margo I. Toth, Anna B....River National Forest, northwestern and central Colorado By Viki Bankey..................................silver, mercury, copper, and palladium in Lemhi County, east-central Idaho By George A. Desborough, William...deal more specifically with mineral deposits or mining districts (see Ayuso and Foley (Chapter E); Offield |  | | Report (issue) | | (CaBSiO4OH) vesicle filling from a basaltic Houghton County lava flow. Small specks of native copper occur...eventually led to one of the biggest and most important "mining booms" in this country's first century. Despite...instilled confidence in North Country mining and initiated the modern mining era. Choice 'Lake Copper' furnished...never documented by geologists working in the district during its decades of maximum activity. Hence...exceptionally fine, twinned analcite crystals from Houghton County ························-··-······-··-········ |  | | Book (edition) | | Co\·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa Jones Collection...species have been relegated to group names (e.g., monazite group); others have had element designations added...used mining districts as part of the locality description. These political and geographic district names...with a more descriptive term, metallic mineral district. This term shows the geochemical and mineralogical...reader to learn more about the geology of the district and to possibly predict the minerals that could |  | Gadas, Petr, Novák, Milan, Talla, Dominik, Vašinová Galiová, Michaela (2013) Compositional evolution of grossular garnet from leucotonalitic pegmatite at Ruda nad Moravou, Czech Republic; a complex EMPA, LA-ICP-MS, IR and CL study. Mineralogy and Petrology, 107 (2) 311-326 doi:10.1007/s00710-012-0232-8 | Journal (article/letter/editorial) | | cutting serpentinized lherzolite with rodingite dikes at Žďár near Ruda nad Moravou, Staré Město Unit...black rodingites (Di>Hbl>Grt, Tr,Phl] commonly form dikes, up to several dm thick, which cut the serpentinized...relationship of the pegmatite dike and rodingite dikes is not clear due to poor outcrops. This geological...betafitepyrochlore, pyrochlore, fluorapatite, monazite-(Ce), Ti-rich hematite, biotite and rutile were...ablation system UP 213 (New Wave, USA) and an ICP-MS spectrometer Agilent 7500 CE (Agilent, Japan). A commercial |  | Guastoni, A., Pennacchioni, G., Pozzi, G., Fioretti, A.M., Walter, J.M. (2014) TERTIARY PEGMATITE DIKES OF THE CENTRAL ALPS. The Canadian Mineralogist, 52 (2) 191-219 doi:10.3749/canmin.52.2.191 | Journal (article/letter/editorial) | | DOI : 10.3749/canmin.52.2.191 TERTIARY PEGMATITE DIKES OF THE CENTRAL ALPS A. GUASTONI§ Museum of Mineralogy...The largest field of Alpine Oligocene pegmatite dikes is in the Central Alps within the Southern Steep...muscovite ± biotite, and only a minor percentage of the dikes (< 5%) contains Sn-Nb-Ta-Y-REE-U oxide, Y-REE phosphate...of quartz and a mylonitic structure. The Codera dikes trend about 70° and are steeply dipping. In the...earlier generation of boudinaged and folded pegmatite dikes. The undeformed pegmatites from this area may contain |  | | Journal (article/letter/editorial) | | Copyright © 1999 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/21801 $20.00 1 .00...available in outcrop, drilling, or underground mining. The granites are classified as monzo- to syenogranites...roof zone of the granitic cupola and pegmatite-aplite dikes cut the granite contact to Cambrian schists...schists. The samples originate from the underground mining levels at 365 m (Se-e7, Se-e9) and 415 m (Se-e23)...albite Li-mica granites (Eib3) with abundant aplitic dikes (Eib4). The most common subtype is Eib2, a reddish |  | | Book (edition) | | Chapters on the Coeur d'Alene Mining District, the Blackbird Mining District, and the Sawtooth Mountains...Chapters on the Coeur d'Alene Mining District and the Blackbird Mining District, and to Ben Sheppard for reviewing...reviewing the chapter on the Blackbird Mining District. Those who contributed photographs, or specimens...are with mine names and occasional1y mining district names. Mining districts, generally are not now formally...the Coeur d'Alene District is the name presently used for the entire silver district that runs from Kellogg |  | | Book | | s p ri n ge r re fe re n ce Franz J. Dahlkamp Uranium Deposits of the World Europe 123 Uranium Deposits.... . . . . . . . . . . . . . . . 2.1.1 Bukhovo District .. . . . . . . . . . . . . . . . . . . . . . .... . . . . . 3.1.1 Jáchymov (St. Joachimsthal) District, Northwest Bohemia . . . . . . . . . . . . . .... . . . . . . . . . . . . 3.1.2 Horní Slavkov District, Northwest Bohemia .. . . . . . . . . . . . ..... . . . . . . . . . . . . . . . 3.3.1 PHíbram District, Central Bohemia . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | XYAl–1WOH–1 and YR2+WO YAl–1WOH–1. Based on zircon and monazite thermometry, near-solidus temperatures of c. 700–660...minor to accessory actinolitic amphibole, allanite-(Ce), ilmenite, titanite, and black tourmaline (dravite...K-feldspar, predominates over minor xenotime-(Y) and monazite-(Ce). 314 Leucocratic halos (LH), 0.5 to 3.0 cm...tourmaline-bearing granite dykes (Fig. 2a). Zircon, monazite, xenotime and 74.45 0.05 14.24 0.13 0.01 0.001...temperatures (Watson and Harrison 1983); T(Mnz): monazite saturation temperatures (Montel 1993) 73.99 0 |
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