 | | Journal (article/letter/editorial) | | Rare Earth Mining and Exploration in North America The Mountain Pass deposit, California Anthony N.... Mariano1 and Anthony Mariano Jr.2 1811-5209/12/0008-0369$2.50 T DOI: 10.2113/gselements.8.5.369 he...(REEs) in North America are abundant and diverse in mineralogy and geology. The Mountain Pass carbonatite...tonnage of REEs, amenability to mineral processing and extraction of the REEs must be definitively established...geochemical, and petrological characterizations are a vital requirement in mineral exploration and are particularly |  | | Journal (article/letter/editorial) | | Montrbal, Montrbal, CP 6128, Succ. A, H3C 3J7, Canada bGdotop, Ddpartement des Sciences de la Terre,...Montrbal, QC, H3C 3P8, Canada CMemorial University, St. John's, Nfld., Canada ReceivedAugust23, 199...Grenville Province ) is a thick pile of sedimentary and volcanic rocks that exhibits most of the characteristics...rocks (dated at 1271 Ma) and subordinate basalts and gabbro sills. Major dements and rare earth contents attest...which has some alkaline affinities. Late granites and monzonites were emplaced between 1239 and 1245 + 3 Ma |  | | Journal (article/letter/editorial) | | Contributions to Mineralogy and Petrology Contrib Mineral Petrol (1981) 78:441-451 9 Springer-Verlag...Microstructures as Time-Temperature Indicators of Blueschist- and Eclogite-Facies Metamorphism Michael A. Carpenter*...potential indicators of thermal history for blueschist and eclogite metamorphism. In particular, the average...be a characteristic feature of each environment and increases in the sequence: Franciscan, blueschist...blueschist ( 9 ) ~ R e d Wine Complex, Canada, amphibolite ( I ) < Maksyutov Complex, Urals, blueschist (3)~ |  | | Journal (article/letter/editorial) | | Contributions to Mineralogy and Petrology Contrib. Mineral. Petrol. 71,289-300 (1980) 9 by Springer-Verlag...the phase relations and exsolution mechanisms for a system in which both ordering and exsolution are possible...continuous mechanisms predominate and a 'conditional spinodal' (Allen and Cahn, 1976) can be described which...which operates between ordered and disordered end members. For a first order case, the ordered phase can...only precipitate a disordered phase by nucleation and growth. Microstructures in omphacites observed by |  | | Journal (article/letter/editorial) | | ORIGINAL PAPER The AxumâAdwa basaltâtrachyte complex: a late magmatic activity at the periphery of the...Heidelberg 2013 Abstract The AxumâAdwa igneous complex consists of a basaltâtrachyte (syenite) suite emplaced...activity. 40 Ar/39Ar and KâAr ages, carried out for the first time on felsic and basaltic rocks, constrain...constrain the magmatic age of the greater part of the complex around Axum to 19â15 Ma, whereas trachytic lavas... ranging from normative quartz trachyte lavas east of Adwa to normative (and modal) nepheline syenite |  | | Journal (article/letter/editorial) | | Russian Federation Institute of Precambrian Geology and Geochronology, MakaroĂa Emb, 2, St. Petersburg, 199034...intrusion is located 50 km southwest of the Khibina complex, central Kola Peninsula. It forms a lense-like...southern bank of the Imandra lake. RbâSr Ćœ379 " 21 Ma. and SmâNd Ćœ383 " 58 Ma. isochron ages of the intrusion...intrusion coincide with the age of the Khibina and Lovozero complexes. A characteristic feature of the Niva...extremely high agpaicity and enrichment in Sr, Ba, Y, Zr, Nb, Rb, LREE, and volatiles. The mineral association |  | | Journal (article/letter/editorial) | | is the accepted manuscript prior to copy editing and page composition. It may differ from the final official...version of record. Page 1 of 57 Geochronology and Geochemistry of Igneous Rocks in the SE Lesser Xingâan...Xingâan Range (LXR), Northeast China: Petrogenesis and Implications for the Early Mesozoic Tectonic Evolution... 9 100037, China. 2. School of Earth Sciences and Resources, China University of Geoscience, 29 Xueyuan...13 14 1 Jin-hua Qin. School of Earth Sciences and Resources, China University of Geoscience, 29 Xueyuan |  | | Journal (issue) | | 7706007. Be estuurder. Red dacteur Geonie euws. Axel EMMERMANN E N, Lobbesplein...Mexicaa ans materiaa al. Aan sten nen uit Rusla and en omge eving zijn we e ondertusse en ook al ge ewend...Ferguson Museum of Mineralogy (Winnipeg, Manitoba, Canada). Foto © Anton Chakhmouradian Ook ericssoniet...het voor in het Pilansberg Complex, Rustenburg District, Bushveld Complex, Northwest Province (Mitchel...ook een paar heel interessante vindplaatsen in Canada, o.a. âą Poudrette quarry, Mont St-Hilaire, Rouville |  | | Journal (article/letter/editorial) | | sapphirine and surinamite groups (sapphirine supergroup) E. S. GREW1, U. HAÌLENIUS2, M. PASERO3 AND J. BARBIER4...Chemistry, McMaster University, Hamilton, Ontario, Canada L8S 4M1 [Received 3 September 2008; Accepted 13...isostructural with sapphirine-1A, sapphirine-2M, and surinamite are closely related chain silicates that...nomenclature problems because of the large number of sites and potential constituents, including several (Be, B...composed of pyroxene or pyroxene-like and spinel modules, and thus we recommend that the sapphirine supergroup |  | | Journal (article/letter/editorial) | | suite, an example of Ediacaran-Cambrian deformed alkaline rocks in the Araguaia Belt, Central Brazil. Implications...Botelho and E.L. Dantas, Monte Santo suite, an example of Ediacaran-Cambrian deformed alkaline rocks in...acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not...will undergo additional copyediting, typesetting and review before it is published in its final form,...may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | James Dwight Dana and Edward Salisbury Dana EIGHTH ENTIRELY REWRITTEN EDITION AND GREATLY ENLARGED ...ROCHESTER ACADEMY OF SCIENCE, ROCHESTER, NEW YORK And with Illustrations by ERIC DOWTY SHAPE SOFTWARE...All rights reserved. Published simultaneously in Canada. Reproduction or translation or any part of this...This publication is designed to provide accurate and authoritative information in regard to the subject...of James Dwight Dana and Edward Salisbury Dana. â 8th ed., entirely rewritten and greatly enl. / by Richard |  | | Journal (volume) | | L L E T I N 1 9 0 · 2001 The IlĂmaussaq alkaline complex, South Greenland: status of mineralogical...with list of minerals GEOLOGICAL SURVEY OF DENMARK AND GREENLAND MINISTRY OF THE ENVIRONMENT 1 Geology...Greenland Survey Bulletin 190 Keywords Agpaite, alkaline, crystallography, Gardar province, geochemistry...kakortokites in the southern part of the IlĂmaussaq alkaline complex, South Greenland. The central part of the...layered kakortokite series and the overlying transitional kakortokites and aegirine lujavrite on Laksefjeld |
|
