| | Journal (article/letter/editorial) | Evidence from jadeitite and related rocks from the Guatemala Suture Zone George E. Harlow, Kennet E. Flores...Evidence from jadeitite and related rocks from the Guatemala Suture Zone, LITHOS (2016), doi: 10.1016/j.lithos...Evidence from jadeitite and related rocks from the Guatemala Suture Zone Department of Earth and Planetary...analyses of jadeitites and related rocks from Guatemala compared with published data on comparable rocks...rocks from other sources. âą In jadeitites from Guatemala, signatures of many trace elements resemble those | | | Report (issue) | facies; a component of Association: zeolites. Albite, quartz, muscovite, omphacite, glaucophane, calcite...Co. At Manzanal, in the Motagua Valley, near the Sierra de las Minas, Guatemala. Name: From jade, a material...containing jadeite, in turn from the Spanish Piedra de yjada, or colic stone, for its supposedly curative | | | Journal (article/letter/editorial) | evidence from a jadeitite-serpentinite contact, Guatemala 1938-2839 Geology Review, 0020-6814 TIGR International...contacts are generally not exposed. In the Sierra de las Minas, Guatemala, we have studied a 3 m-wide pit transecting...accessory minerals show poikiloblastic inclusions of albite, which suggests that they grew concomitantly in...Burma, Russia, Kazakhstan, Japan, California, Guatemala, and the Cyclades (Bröcker and Enders, 2001; Compagnoni...in 1998, when Hurricane Mitch roared through Guatemala at a heavy cost to life and property. Mitchâs | | Brueckner, Hannes K., AvĂ© Lallemant, Hans G., Sisson, Virginia B., Harlow, George E., Hemming, Sidney R., Martens, Uwe, Tsujimori, Tatsuki, Sorensen, Sorena S. (2009) Metamorphic reworking of a high pressureâlow temperature mĂ©lange along the Motagua fault, Guatemala: A record of Neocomian and Maastrichtian transpressional tectonics. Earth and Planetary Science Letters, 284 (1) 228-235 doi:10.1016/j.epsl.2009.04.032 | Journal (article/letter/editorial) | pressureâlow temperature mĂ©lange along the Motagua fault, Guatemala: A record of Neocomian and Maastrichtian...oblique collisional tectonics a b s t r a c t The Guatemala suture zone is a major eastâwest left-lateral...North American and Caribbean plates in Guatemala. The Motagua fault, the central active strand of the...within serpentinites both north and south of the Motagua fault. Lawsonite eclogites south of the fault are...that all serpentinite hosted eclogites along the Motagua fault formed at essentially the same time in different | | | Journal (article/letter/editorial) | varieties and petrotectonic evolution of the northern Guatemala Suture Complex Uwe Martens, Tatsuki Tsujimori...varieties and petrotectonic evolution of the northern Guatemala Suture Complex, International Geology Review,...varieties and petrotectonic evolution of the northern Guatemala Suture Complex Uwe Martensa,b, Tatsuki Tsujimori...eclogite localities within the Guatemala Suture Complex (GSC) north of the Motagua Fault are presented. The...that is associated with serpentinite of the North Motagua Unit. The Tanilar River locality exposes numerous | | | Journal (article/letter/editorial) | albitites and related rocks from the Motagua Fault Zone, Guatemala G . E . HARLOW Department of Mineral...NY 10024-5192, USA ABSTRACT Jadeitites from Guatemala are found as weathered blocks in tectonized serpentinite...north of the Motagua Fault Zone. Rock types found with jadeitite include albitites, albite-mica rocks,...and/or phengite f rarer phlogopite), omphacite, albite, titanite f zircon, apatite and graphite. Conditions...jadeitites are extensively altered to analcime, albite, taramitic amphibole, (c1ino)zoisite f nepheline | | | Journal (article/letter/editorial) | analcime (NaAlSi2 O6 âąH2 O), nepheline (NaAlSiO4 ), albite (NaAlSi3 O8 ), and quartz (SiO2 ). Loring Coes...the important reactions nepheline + albite = jadeite and albite = jadeite + quartz awaited the work of...mechanism for subjecting crustal rocks containing albite to suitably high pressure to form jadeite, namely...of graywacke, as in Sulawesi (formerly Celebes) (de Roever 1955), does not explain jadeite rockâjadeitite...(trondhjemitic to dacitic igneous rocks with dominant albite and quartz), was suggested by Coleman (1961, 1980) | | | Report (chapter) | North American-Caribbean Plate boundary in Mexico-Guatemala-Honduras Lothar Ratschbacher, Leander Franz, Myo...American â Caribbean Plate boundary in Mexico â Guatemala âHonduras LOTHAR RATSCHBACHER1*, LEANDER FRANZ1...the North American âCaribbean Plate boundary in Guatemala and Honduras accommodated the large-scale sinistral...the overriding Greater Antilles arc complex. The Las Ovejas complex of the northern ChortıÌs Block contains...part of the ChortıÌs Blocks, and the Polochic, Motagua and JocotaÌnâChamelecoÌn fault zones along the | | | Journal (article/letter/editorial) | associated metapelite from the ChuacĂșs complex (Guatemala Suture Zone): constraints from phase equilibria...Luigi A. Solari3 1 Instituto de GeologĂa, Universidad Nacional AutĂłnoma de MĂ©xico, Ciudad Universitaria...Departamento de GeologĂa, Centro de InvestigaciĂłn CientĂfica y de EducaciĂłn Superior de Ensenada, Carretera...Ensenada B.C., Mexico 3 Centro de Geociencias, Universidad Nacional AutĂłnoma de MĂ©xico, Campus Juriquilla...abundant metapelitic rocks in the ChuacĂșs complex (Guatemala Suture Zone) also preserve evidence for high-pressure | | Skirrow, R.G, Camacho, A, Lyons, P, Pieters, P.E, Sims, J.P, Stuart-Smith, P.G, MirĂł, R (2000) Metallogeny of the southern Sierras Pampeanas, Argentina: geological, 40Arâ39Ar dating and stable isotope evidence for Devonian Au, AgâPbâZn and W ore formation. Ore Geology Reviews, 17 (1) 39-81 doi:10.1016/s0169-1368(00)00004-4 | Journal (article/letter/editorial) | mesothermal lode Au Ćœ"Cu " Ag. in the Sierra de Las Minas and Sierras de Cordoba yields ÂŽ Devonian 40Arâ 39Ar...W-bearing quartz vein mineralization in the Aguas de Ramon ÂŽ and El Morro districts which yielded muscovite...hosted by maficâultramafic intrusions in the Sierra de San Luis ĆœSkirrow and Sims, 2000., both of which...to NiâCu sulfide mineralization at Las Aguilas in the Sierras de San Luis ĆœFig. 1., occurred at ca. 480...Devonian shear zones Ćœe.g. in the Sierra de San Luis and Sierras de Comechingones. were the loci of granite | | | Report (issue) | ;:;;: -;::::--- âą...,._ M Maya Mountain$ GUATEMALA -,. - ,ïżœ !I-_.. INSTITUTE OF GEOLOGICAL...from the larger areas of Palaeozoic rocks in Guatemala, Honduras and Mexico. A number of travellers and...been correlated with the Santa Rosa Group of Guatemala and has been given the same name. The Santa Rosa...adjoins the Repub lic of Mexico on the north and Guatemala on the west and south. PHYSICAL FEATURES The Maya...Branch (16° 31'N, 88° 51' W) and westwards into Guatemala. Although the Maya Mountains form a separate identifi | | | Journal (article/letter/editorial) | amounts of acmite, chloromelanite â the stone piedra de yjada (stone for the (NaAlFe)Si 12 0 6 â is formed...Robert Leslie in 1952 in Guatemala, close to the serpentine area of Sierra de las Minas. Foshag of the Smithsonian...jadeite. The minerals associated with jadeite were albite, nepheline, pectolite, actinolite, tremolite, chlorite | | | Report (volume) | _____________ ---- __________ ----_-----_____ Guatemala----------------------------------------------...Hornitos mine ______ ;_______________________________ Las Flores deposits _________________________________..._______________________________________________ Las Tablas deposit_____________________________________...____ ----___ 46 46 46 47 47 47 47 47 47 48 Guatemala----------------------------------------------...----- ____ -------------------- ___ ---------___ Guatemala-----------------------------------------------San | | Sato, Ana MarĂa, Tickyj, Hugo, LlambĂas, Eduardo Jorge, Stipp Basei, Miguel Angelo, GonzĂĄlez, Pablo Diego (2004) Las Matras Block, Central Argentina (37°S-67°W): the Southernmost Cuyania Terrane and its Relationship with the Famatinian Orogeny. Gondwana Research, 7 (4) 1077-1087 doi:10.1016/s1342-937x(05)71085-6 | Journal (article/letter/editorial) | Association for Gondwana Research, Japan. ISSN: 1342-937X Las Matras Block, Central Argentina (37OS-67âW): the...Diego Gonziilezâ Centro de lnvestigaciones Geolbgicas, CONICET-Universidad Nacional de La Plata, Calle 1 N...ar;gonzapab@cig.museo.unlp.edu.ar Universidad Nacional de La Pampa. Av. Uruguay 151, L6300CLB Santa Rosa, La...htickyj@exactas.unlpam.edu.ar CPGeo, lnstituto de Geocitncias, Universidade de 5â50 Paulo, S i o Paulo S P 05422-970...15,2003; accepted February 9,2004) Abstract The Las Matras Block in Central Argentina constitutes the | | | Journal (article/letter/editorial) | Sierras de CĂłrdoba, Argentina Alina B. Guereschi â, Roberto D. Martino CONICET and Departamento de GeologĂa...BĂĄsica, Facultad de Ciencias Exactas, FĂsicas y Naturales, Universidad Nacional de CĂłrdoba. Av. VĂ©lez...the metamorphic basement of the central eastern Sierra de Comechingones (Sierras Pampeanas of CĂłrdoba, Argentina)...Cambrian (520â530 Ma) in other areas in the Sierras de CĂłrdoba, in which case the first migmatization event...Neoproterozoic. The tectonic evolution of the Sierra de Comechingones would imply the occurrence of extensionâshortening | | | Journal (article/letter/editorial) | Argentina C. Bello Regional Centro, ComisiĂłn Nacional de EnergĂa AtĂłmica, Espinel 902, 5000 CĂłrdoba, Argentina...LĂłpez de Luchi et al. 2007). The largest batholith of Devonian age, the Achala batholith (Sierras de CĂłrdoba)...out on granites in the Sierra de San Luis (e.g., Siegesmund et al. 2004; LĂłpez de Luchi et al. 2007). However...within-plate setting for the more evolved granitoids (LĂłpez de Luchi et al. 2007). Although the Achala batholith...The ca. 2,500 km2 Achala batholith in the Sierras de CĂłrdoba (Fig. 1) was emplaced during the Late Devonian: | | | Book | Wiskerstoies ele ie rites . ji ne ye we ele ebece De! 2 ete ce - â ...as a basis those published in Lapparentâs TraitĂ© de GĂ©ologie. From time to time new maps were added,...horiedand. Physiographic and structural provinces Sierra Madre Occidental Province Anahuac Desert Plateau...Province Gulf Coastal Plain Province Volcanic Province Sierra del Sur Province . Tehuantepecan Province Diastrophism...ei <'.â- 304 3 CENTRAL AMERICA: CHIAPAS, GUATEMALA, HONDURAS, AND SOUTHERN Nicaragua; AND Its Youna | | | Report (issue) | Roermund, H.L.M., Drury, M.J., Barnhoorn, A., and de Ronde, A.A., 2000, Super-silicic garnet microstructures...L., Allen, C.M., Davis, D.W., Aleinikoff, J.N., Valley, J.W., Mundil, R., Campbell, I.H., Korsch, R.J...773. Puga, E., Fanning, C.M., Nieto, J.M., and DĂaz de Federico, A., 2005, Recrystallization textures in...gneiss, amphibolite, garnetâmica schist, chloriteâ albite schist, marble, and quartzite; the protoliths of...and magnesiokatophorite. Secondary plagioclase is albite with An<01. A P-T estimate for eclogite 98196 is | | | Journal (issue) | Gundinmarca, Colombia, is a new emerald mine, Las Vegas de San J u a n , or as locally known, the Gachala...the Montagua valley of Guatemala, close to the serpentine area of the Sierra de las Minas. There is considerable...often contains abundant albite. There are other serpentine areas in Guatemala and Mexico which may contain | | | Journal (article/letter/editorial) | mĂ©lange units from the lowest grade (lawsonite-albite and lawsonite-blueschist facies) to the highest...exhibits a range of metamorphic grades from lawsonite-albite up to amphibolite facies (Grove and Bebout, 1995)...amphibolite unit (Sorensen and Barton, 1987), the Sierra del Convento mĂ©lange in Cuba (GarcĂa-Casco et al...epidote-quartz veins in a matrix of fine-grained quartz, albite, epidote, titanite, phengite, chlorite and actinolite...replaced dominantly by MA albite (albitites) in the Sierra de las Minas, Guatemala, suggests subsequent mobility | | | Book (volume) | Company of El Paso, Texas. Information on the Virgin Valley opal deposits was given by G. Keith Hodson of Scottsdale...account of the agates found in the Mississippi Valley was provided by Irving W. Hurlbut of Muscatine...Drawing of Ramona Topaz crystal . View of Virgin Valley . An opal digging XI List of Illustrations ...were picked up at the Horshaw Mine in Racoochee Valley, White County. In April 1887, a 4.5 carat stone...chatoyant cabochon gems; similar crystals were found in albite and loose in the soil in and around old corundum | | | Report (issue) | en el prospecto "El Alacran", Sonora - hasta Marzo de 1970 [Report on geological, geochemical and geophysical...geologicas-mineras sobre cobre en los prospectos de "Los Alisos", "La Caridad" y "El Alacran"- Reconocimiento...geofisico regional en el districto de Nacozari, en el estado de Sonora: Consejo de Recursos Naturales no Renovables...area]: Hermosillo, Mexico, Consejo de Recursos Minerales Gerencia de Estudios Especiales, 64p. Arriaga...Gomez Caballero, A., 1986, Resultados de la evaluacion del deposito de boratos del area Tubutama, Sonora | | | Book | SalvadorâZapotitĂĄn Valley. 4. Volcanic ash, tuïŹ, etc.âEl Salvadorâ ZapotitĂĄn Valley. 5. Social archaeologyâEl...Salvador âZapotitĂĄn Valley. 6. Plant remains (Archaeology)â El SalvadorâZapotitĂĄn Valley. 7. Animal remains...(Archaeology)âEl SalvadorâZapotitĂĄn Valley. 8. ZapotitĂĄn Valley (El Salvador)âAntiquities. I. Sheets...and Change in the Contemporary Community of Joya de CerĂ©n 192 Carlos BenjamĂn Lara M. and Sarah B. Barber...crew of Salvadoran workers from Chalchuapa and Joya de CerĂ©n who have learned such ïŹne excavation and conservation | | | Book (edition) | production of the second edition. Thanks, too, to De Beers Consolidated Mines Ltd, for the information...new plates have been provided by the courtesy of De Beers xxi Preface to the Second Edition Consolidated...rocks. Figure 1.3 Basaltic lava flow of 1944 in a valley leading down to Naples, Italy. The Monte Somma...least 8 m (26 ft) thick at Urubu, near Araçuai, Minas Gerais, Brazil. Fine pink and green gem-quality...14 Alluvial sands containing diamonds near Sopa, Minas Gerais, Brazil The above discussion has concentrated | | | Journal (article/letter/editorial) | conditions HELEN M. TALBOT1*, LUKE HANDLEY1, GERT DE LANGE2 AND THOMAS WAGNER1 A1023 Origin of the Lower...Organic Geochemistry 35(4), 405â411. 1 UniversitĂ© de Toulouse, LMTG, 14 Av Edouard Belin, 31400 Toulouse...PPO 9612â1996. Impacto de la MinerĂa y el Procesamiento de Minerales en Cursos de Aguas y Lagos. 120 pp...pp [2] PPO 9608â1996. Plan Final de GestiĂłn Ambiental. 64 pp. Goldschmidt Conference Abstracts 2010...comparison of solid particulate matter between Po Valley and Friuli Plain C. TELLOLI1, F. COREN2, E. MARROCCHNO1 |
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