 | | Journal (article/letter/editorial) | | a portion of last winter in the mountains of Costa Rica, I was enabled to collect some interesting rocks...Arenas, situated on the Bay of Nicoya, Republic of Costa Rica, Central America. The town is built near the...per cent. of magnetite and about 25 per cent. of quartz-grains, the remainder being made up of felspar...Saskatchewan on June 13, 2016 OF A PART 017 COST& RICA. 329 the peninsula of Punta Arenas, owing to the...with them the decomposed igneous rocks from the Costa-Rican Andes and its spurs. However, the peninsula |  | | Journal (issue) | | . . . . . . • . . . 5.00 GaW, V• •~bk. Xld. on Quartz. 1 1/4 x 1 • • • • • • . . • . . • . • . . . •... 12.50 C..ulllle. rmany. Xld. in mass w. Smoky Quartz. 3 ½ x 2 ½ . • . . . . 7.50 ...., ... Tyrol. With...2.50 s,llaledte, Phoenixville, Pe. Well xld. w. Quartz xis. 3 x 2 ½ . . . . . . . . 2.50 ................ • . . . . 4.00 Sta■■lte, Cornwall. With some Quartz and Chalcopyrite. 21h x 2 . . . . . . 1.25 C1l••••lh...onite, France. Repeated twin 1 ¼ " enclosing red Quartz xis. . . . . . . 1.50 Transportation extra. Terms |  | | Journal (article/letter/editorial) | | Costa Rica Author(s): George Earl Church Source: The Geographical Journal, Vol. 10, No. 1 (Jul., 1897)...use subject to JSTOR Terms and Conditions 56 COSTA RICA. activity. Turkistan, Caucasia, the Amur region...parts of the great continent of Asia. _P. K. COSTA RICA.* By Colonel GEORGE EARL CHliUCH. ALONG the northernborderof...political factor of moment. During a recent voyage to Costa Rica, I had facilities affordedto me to collect data...permanentabode. With the exception of San Salvador,Costa Rica is the smallest country of the New World. Its |  | | Journal (article/letter/editorial) | | indicate that their ages may be identical. 4th. The quartz-trachytes and sandstone are recent, and most certainly...California-San Diego on December 4, 2015 COS~A-RICA~ROCKS. 337 compact matrix, full of small crystals...University of California-San Diego on December 4, 2015 COSTA-RICAN ROCKS. to further oxidation at the edges...accessible to water under ordinary pressure. No. 6. "Los Castros rock, Aguacate ]Kountains." Specific gravity...l~icoya, to the Volcanoes Irazu and Turrialba, Costa Rica. Downloaded from http://jgslegacy.lyellcollection |  | | Book | | . . . . . . . . . . . . . . . . . . . . . 133 Los yacimientos auríferos primários de la província de...plano-convex ingots in the area: one in the Varilongo mine (Santa Comba) and another in Ríal (Cuns, Coristanco)...between Soubisse and Moëze in the Charente-Maritime province contains three single-looped palstaves of Iberian...closest match located at Pyrenean deposits (Cabrieres mine?) (Rohl & Needham 1998). 23 POVOAMENTO E EXPLORAÇÃO...(coord.) (2007). El hallazgo leonés de Valdevimbre y los depósitos del Bronce Final Atlántico en la Península |  | Fernández-Lozano, Javier, González-Díez, Alberto, Gutiérrez-Alonso, Gabriel, Carrasco, Rosa, Pedraza, Javier, García-Talegón, Jacinta, Alonso-Gavilán, Gaspar, Remondo, Juan, Bonachea, Jaime, Morellón, Mario (2018) New Perspectives for UAV-Based Modelling the Roman Gold Mining Infrastructure in NW Spain. Minerals, 8 (11) 518 doi:10.3390/min8110518 | Journal (article/letter/editorial) | | Sciences, University of Cantabria, Avenida de los Castros s/n, 39007 Santander, Spain; gonzalea@unican...Teleno Mountain ranges, located in the southwestern province of León (NW Spain), represents a natural laboratory...underlying Ordovician quartzites (4 ppb in Serie Los Cabos) [43]. The main mineralized showings are related...to a wide conjugate fracture network filled with quartz-bearing from NE-SW to NW-SE trending veins and...the presence of large triangular volumes of white quartz filling the hinge of open folds, such as the Manzaneda |  | Marcos, Celia, de Uribe-Zorita, María, Álvarez-Lloret, Pedro, Adawy, Alaa, Fernández, Patricia, Arias, Pablo (2021) Quartz Crystallite Size and Moganite Content as Indicators of the Mineralogical Maturity of the Carboniferous Chert: The Case of Cherts from Eastern Asturias (Spain) Minerals, 11 (6) 611 doi:10.3390/min11060611 | Journal (article/letter/editorial) | | minerals Article Quartz Crystallite Size and Moganite Content as Indicators of the Mineralogical Maturity...Álvarez-Lloret, P.; Adawy, A.; Fernández, P.; Arias, P. Quartz Crystallite Size and Moganite Content as Indicators...Interfacultativo, University of Cantabria, Av. de los Castros, 52, 39005 Santander, Spain; patricia@gmx.es... and the crystallite size (over 1000 Å) of the quartz in these cherts would be indicative of its maturity...texture and formed mostly by silica minerals such as quartz, moganite, chalcedony (cryptocrystalline form of |  | | Book | | 480 about 120 Southern Gaul becomes a Roman province Latene BI ·C .5 E-< 58-51 Caesaric wars Early...value. Gold is concealed in minerals like pyrite in quartz veins. Only when you dig to the depths, you can...children. We would like very much to find a gold mine and we would like very much too, to have golden...Romans in the south established their first Gallic province - Gallia Transalpina (later known as Narbonensis)...witnessed a dense and permanent settlement from Los Millares onwards. This would have been the result |
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