 | Cisneros de León, A., Weber, B., Ortega-Gutiérrez, F., González-Guzmán, R., Maldonado, R., Solari, L., Schaaf, P., Manjarrez-Juárez, R. (2017) Grenvillian massif-type anorthosite suite in Chiapas, Mexico: Magmatic to polymetamorphic evolution of anorthosites and their Ti-Fe ores. Precambrian Research, 295. 203-226 doi:10.1016/j.precamres.2017.04.028 | Journal (article/letter/editorial) | | Grenvillian massif-type anorthosite suite in Chiapas, Mexico: magmatic to polymetamorphic evolution of anorthosites...Grenvillian massif-type anorthosite suite in Chiapas, Mexico: magmatic to polymetamorphic evolution of anorthosites... Grenvillian massif-type anorthosite suite in Chiapas, Mexico: magmatic to polymetamorphic evolution of anorthosites...Educación Superior de Ensenada (CICESE), Baja California, Carretera Ensenada-Tijuana 3918, Zona Playitas...Playitas, 22860 Ensenada, Baja California, México c Centro de Geociencias, Universidad Nacional Autónoma |  | | Journal (article/letter/editorial) | | In jadeitites from Guatemala, signatures of many trace elements resemble those of presumed subducted sediments...the major element compositions and aspects of the trace elements, such D as REE abundances tracking Ca...however, some omphacitite samples show the opposite. Trace elements in these jadeitite samples show a strong...and other terrigenous sediments in terms of their trace-element patterns, but are offset to lower abundances...abundances. Jadeitites thus incorporate a strong trace-element signature derived from sediments mixed with |  | | Book | | "'<' ~/ BOUNDARIES U A Mo<'« u~ o V :¾ MEXICO r - ·•-.. ·-··-··-··-·· < •• ....... V S TATES...org/details/mineralsofmexico0000panc MINERALS OF MEXICO • ERALS OF ~XICO M ______ William D. Panczner...1938Minerals of Mexico. Bibliography: p. 1. Mineralogy-Collectors and collecting-Mexico. 2. Mines and mineral...mineral resources-Mexico. I. Title. QE377.M6P36 1987 549.972 86-13325 ISBN 0-442-27285-5 This boo i...i.. is deJicated tu the people of Mexico and to the three people who directly affected me and this project | | | Book | | anc MINERALS OF MEXICO 7 | : = Pras #0 AaprTTARE ; | MINERALS OF MEXICO William D. Panczner...1938Minerals of Mexico. Bibliography: p. 1. Mineralogy— Collectors and collecting— Mexico. 2. Mines and...and mineral resources— Mexico. I. Title. QE377.M6P36 1987 549.972 86-13325 ISBN 0-442-27285-5 This book...Jalisco; D. Santiago Ramirez’s La Riqueza Minera de Mexico, and his translation of Dana’s Tratado de Mineralogia...a. ie = Maes Lie Auadado = ae MINERALS OF MEXICO Vv | Oona tA. IMPORTANT MINING DISTRICTS |  | Flores, Kennet E., Martens, Uwe C., Harlow, George E., Brueckner, Hannes K., Pearson, Norman J. (2013) Jadeitite formed during subduction: In situ zircon geochronology constraints from two different tectonic events within the Guatemala Suture Zone. Earth and Planetary Science Letters, 371. 67-81 doi:10.1016/j.epsl.2013.04.015 | Journal (article/letter/editorial) | | Motagua Mélange of the GSZ were studied for age and trace-element determination. Most of these zircons are...primary reaction boundary (e.g., Nant Maw 109 mine, Jade Mine Tract, Myanmar; Harlow et al., 2007), (b) in...with blackwall rinds in serpentinite (e.g., Quebrada El Silencio, South Motagua Mélange, Guatemala), or (c)...Dengo, 1985; Donnelly et al., 1990; see Fig. 1). The Baja Verapaz Shear Zone (BVSZ) is also an important thrust...main units: Sierra de Santa Cruz ophiolite (SSC), Baja Verapaz ophiolite (BVP), Juan de Paz ophiolite (JPZ) |  | | Journal (article/letter/editorial) | | precursors were already depleted in fluid-mobile trace elements, prior to melting. An incremental melting...crustal magmatic suites have very similar major and trace element characteristics (Muir et al., 1995, 1998)...Separation Point Batholith. (b) Normalised average trace element plots for the granitoids of the Separation...granulite-facies gneisses in the Lewisian have a very similar trace element chemistry, arguing against significant intracrustal...Philippines (Sajona et al., 1993, 1997, 2000). (c) Baja California (Rogers et al., 1985; Saunders et al., 1987; |  | | Report (issue) | | The Prebatiiolitiiic Stratigraphy of Peninsular California Edited by R. Gordon Gastil and R. H. Miller ... The Prebatholithic Stratigraphy of Peninsular California Edited by R. Gordon Gastil and R. H. Miller...Sciences San Diego State University San Diego, California 92182 SPECIAL PAPER 1993 RHBNC 26 0034803...The Prebatholithic stratigraphy of peninsular California / edited by R. Gordon Gastil and R. H. Miller...ISBN 0-8137-2279-9 1. Geology—Mexico—Baja California. 2. Geology—California, Southern. 3. Geology, Stratigraphic |  | | Book (volume) | | colorful and fabulous tourmalines and kunzites of California and Maine, the sparkling sapphires of Montana...to the end of 1974. John Sinkankas San Diego, California July, 1975 JOHWSTUPAW.N19,901 Gene ay Derek...a j — » ya y _— ’* : i mine in. q)! Y eit iia -el ~~ a a 7 : 7 ¢ z = NTs...Barron of the Southern Gem and Mineral Company of El Paso, Texas. Information on the Virgin Valley opal...Diego, California, furnished information and a photograph on the calcite onyx deposits of Baja California |  | | Report (volume) | | for rare bulk compositions such as hancockite. Zoisite, the orthorhombic polymorph of clinozoisite, is...can incorporate geochemically relevant minor and trace elements such as Sr, Pb, REE, V, and Mn. The epidote...importance of zoisite in subduction zone processes as a carrier of H2O and suggested zoisite to be the main...Many studies have shown that an understanding of trace element geochemical processes in high-pressure rocks...available, are reviewed in separate chapters. Finally trace element (Chapter 12, Frei, Liebscher, Franz and |  | | Report (issue) | | 40.36 0.09 30.67 0.61 1.77 (2) 38.01 trace 31.71 4.68 0.23 trace MgO CaO H2 O+ H2 O¡ (1) 0.74 22.62...Polymorphism & Series: Mineral Group: Dimorphous with zoisite. Epidote group. Occurrence: Typically in low-...Los Angeles Co., California; in the Nightingale district, Pershing Co., Nevada. In Mexico, from the Juarez...Juarez district, Baja California, and at Alamos, Sonora. In Canada, from Timmins, Ontario. Name: For its...its monoclinic crystallography and relation to zoisite. Type Material: n.d. References: (1) Dana, E |  | | Book (edition) | | usage: a gem is a mineral cut and polished for Zoisite has been known as a mineral for decades. It is...the late 1960s fine, blue-violet, transparent zoisite crystals were discovered use; a gemstone is...establishments, Tiffany & Co., noted that cut blue zoisite resembles fine sapphire, viii worn easily; a...quality in an unfamiliar color (for example, blue zoisite = tanzanite) and the tabulation will be ranked...natural or synthetic, but, also to indicate the very mine from which it came! Inclusions are the most powerful |  | Flores, Kennet E., Skora, Susanne, Martin, Celine, Harlow, George E., Rodríguez, Dionisio, Baumgartner, Peter O. (2015) Metamorphic history of riebeckite- and aegirine-augite-bearing high-pressure–low-temperature blocks within the Siuna Serpentinite Mélange, northeastern Nicaragua. International Geology Review, 57 (5) 943-977 doi:10.1080/00206814.2015.1027747 | Journal (article/letter/editorial) | | are exposed almost continuously from California to Baja California (Sedlock et al. 1993; Patrick and Day...Day 1995), in the central Pacific region of Mexico (Talavera-Mendoza 2000), along the Motagua valley in...exhumation ages in southern and Baja California and probably in central Mexico. In contrast, a clear middle...Central America geological setting The southern Mexico–Central America region is one of the most geologically...rifting and subsequent spreading of the Gulf of Mexico (Pindell and Dewey 1982; Pindell 1985; Pindell |  | | Journal (issue) | | known for its production of the gem variety of zoisite, tanzunite, which occurs in the Merelani Hills...for a copy. Letters on articles published in Gems el Gemology and other relevant matters arc also welcome... Postmaster: Return undeliverable copies of Gems el Gemology to 1660 Stewart St., Santa Monica, C A 90404...n e w gem materials such as transparent green zoisite have appeared on the market, and there is increasing...extent: diamond, ruby, sapphire, purplish blue zoisite (tanzanite; figure l), and green grossular [tsavorite)and |  | | Journal (article/letter/editorial) | | 4&). Based on N data in combination with other trace element data, the eclogite suites can be subdivided...resulting in correlated enrichments of N and other trace elements (in particular, Ba and Pb) thought to be... Combinations of N isotope data with major and trace element and other isotopic compositions can yield...associated zoisite-bearing eclogites, with the mineral assemblage omphacite + garnet + zoisite + minor amphibole...Raspas eclogites. One zoisite vein, analyzed for N here, contains >90 vol% of zoisite and minor amounts of |  | | Journal (article/letter/editorial) | | Washington, DC 20013 pohwatp@si.edu GROSSULAR Jeffrey Mine, Asbestos, Les Sources Municipalité Régional de...Figure 1. Grossular, 7 × 8 cm, from the Jeffrey mine, Asbestos, Les Sources Municipalité, Régional de...grossular dodecahedra is commonly observed on Jeffrey mine specimens. This particular specimen is one of the...modified single crystal of grossular from the Jeffrey mine, Asbestos, Québec, Canada. The Arkenstone specimen...12-cm-high group of grossular crystals from the Jeffrey mine, Québec, Canada. Formerly in the Charles Key collection | | | Book (edition) | | quality in an unfamiliar color (for example, blue zoisite = tanzanite) and the tabulation will therefore...natural or synthetic. but. also to indicate the very mine f ram which it came! I nclusions are the most powerful...from the Mohawk Mine, Keweenaw Peninsula, Michigan. Domeykite is from the Mohawk Mine, Michigan; Lake...Lake Superior district, Ontaria, Canda; Guererro, Mexico; also from Chile, Germany, Sweden, and from Cornwall...Quartz. ALABASTER ALLANITE After the Algodones Mine, Coquimbo, Chile. Occurrence: In sedimentary deposits |  | | Book (edition) | | gem? INTRODUCTION WHAT A IS GEM? cut blue zoisite resembles fine sapphire, dubbed the new material...as a is indisputable. Is a cut proustite a Zoisite has usually gray or pinkish mineral for decades...Tiffany & Co., noted that blue-violet, transparent zoisite crystals There are more than three thousand known...to opaque, metallic minerals, because the is zoisite, in some exam- crystal pearly on surfaces...natural or synthetic but also to indicate the very mine from which it came! Inclusions are the most powerful |  | | Report (chapter) | | The North American-Caribbean Plate boundary in Mexico-Guatemala-Honduras Lothar Ratschbacher, Leander...The North American – Caribbean Plate boundary in Mexico – Guatemala –Honduras LOTHAR RATSCHBACHER1*, LEANDER...Seattle, WA 98195, USA 4 CICESE, 22860 Ensenada, B.C., Mexico 5 Department of Geology and Geophysics...the Chortı́s Block, and the terranes of southern Mexico and the northern Caribbean. Our principal findings...ophiolite and subduction– accretion complex (North El Tambor complex), the continental margin (Rabinal |  | | Journal (article/letter/editorial) | | NOTESAND NEWS 519 OF PINK ZOISITE(THULITE) IN'THE UNITED STATES* OCCURRENCE W. T. Scuar,LERANDJowerl...thulite, the pink variety of zoisite, namely: in Maryland, Connecticut, New Mexico, and North Carolina. The...12 States, with severallocalities in each of California, Nevada, North Carolina, Pennsylvania, and Washington'...Geological Survey. 1 Northrop, S. A., Thulite in New Mexico: Am. Mineral.,20, 80.5-807(1935); Analyses of thulite...iW.,21,73 (1936). 2 Pabst, Adolf, Minerals of California: Ditsision oJ Mines, Bull. 113,297 (1938)' First |  | | Journal (article/letter/editorial) | | MORB Sr–Nd isotopes A B S T R A C T Major and trace element geochemical signatures and Sr–Nd isotope...comparable to acid rocks from Catalina Schist mélange (California) considered to be primary slab melts which did...with the mantle wedge. In agreement with major and trace element geochemistry, the Sr–Nd isotope systematic...complexes, such as the Catalina Schist mélange (California), partial melting of metabasite and metasomatic...120–133 In this paper, we characterize the major, trace, and Sr–Nd isotope geochemistry of pristine primary |  | | Journal (article/letter/editorial) | | to an Fe-free composition, and comparison with zoisite stability results suggest that at elevated pressures...clinozoisite inverts with increasing temperature to zoisite along a nearly vertical phase boundary at 635 =k...function largely of bulk composition and ]02. Zoisite replaces Al-clinozoisite in rocks of medium grade...calcium a l u m i n u m silicates grossularite a n d zoisite h a v e been d e t e r m i n e d b y B o e t t...epidote minerals Locality Timmons Ontario Baja Calif. a Baja Calif. Plumas Co. Calif. Calumet Colo. |  | | Journal (issue) | | Alice S. Keller ARTICLES 4 P.5 Gem-Quality Green Zoisite Barot and Edward W. Boehm Kilbourne Hole Peridot...NOTES AND NEW TECHNIQUES 28 Opal from Querktaro, Mexico: Fluid Inclusion Study 35 43 Ronald J. Spencer...dislinctive orange to red ''fie" opols ot Queretoro, Mexico, is believed to be unique. To help solve the lnyslery...grossular garnet (tsavorite/tsavolite),violetish blue zoisite (tanzanite),"chrome" tourmaline, and ruby, as well...February 1991)is a green gem-quality variety of zoisite (figure 1).This green stone exhibits the basic |  | | Journal (article/letter/editorial) | | México, Ciudad Universitaria, 04510 México D.F., Mexico 2 Departamento de Geología, Centro de Investigación...Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, 22860 Ensenada B.C., Mexico 3 Centro de Geociencias...de México, Campus Juriquilla, 76001 Querétaro, Mexico Short title: High-pressure evolution of the Chuacús...wide that extends between the Cabañas fault and the Baja Verapaz shear zone (Ortega-Obregón et al., 2008)...of zircon, titanite and monazite, as well as the trace element concentrations in zircon and garnet were |  | | Journal (issue) | | authority over names might well have opted for zoisite over tanzanite, for example, when Tiffany and Co...of Tiffany to coin the term tanzanite for blue zoisite from Tanzania. Inasmuch as the campaign was successful...gemstones. However, Mr. Liddicoat tells us that brown zoisite is currently "referred to as tanzanite by American...definition so that tanzanite means gem-quality zoisite (of any color?)from Tanzania, or to take a stand...brown zoisite is called tanzanite and blue zoisite is also called tanzanite, but green zoisite is called |  | | Journal (article/letter/editorial) | | granite-breccia cemented by phonolite from the Gold Dollar mine in Arequa Gulch, Cripple Creek district, Colorndo... 886) and afterwards a t the South Kecln Copper Mine, Houghton Go., Michigan (Abstr., 1894, ii, 240)...material from the Stockslager mine on Granite Creek in Eldorado Co., California. By heating the mineral with...11.54 1.60 1.64 Li,O. H,O 105". H,O 280". trace 0.40 0.17 K,O. 10.37 H,O =. 280". Total. 4...with gold at four localities in Eldorado Go., California. It occurs at the junction of intrusive granodiorite |
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Trace Mine, El Rayo, Ensenada Municipality, Baja California, Mexico