 | | Book | | ---- |----：-（ |- % A DICTIONARY OF SPANISH MINING TERMIS MININAND METALURCICALPUBLICATIONS Geology...Studies. Mining Geology . . Prospecting for Minerals . Ore and Stone Mining. . Elements of Mining . . Coal...Coal Mining . Practical Coal Mining . Elementary 39 Elect. Colliery Practice . Mine-Surveying . . Mine...Mine Air, Investigation of. Mining Law . . Blasting and Explosives . Testing Explosives . Shaft Sinking...Sinking . 39 - e - - - º - Mining - - . - *3 - - - 7º . - - $10.00 - H. W. HUGHES, F |  | Witt, W. K., Hagemann, S. G., Villanes, C., Vennemann, T., Zwingmann, H., Laukamp, C., Spangenberg, J. E. (2016) Multiple Gold Mineralizing Styles in the Northern Pataz District, Peru. Economic Geology, 111 (2) 355-394 doi:10.2113/econgeo.111.2.355 | Journal (article/letter/editorial) | | Gold Mineralizing Styles in the Northern Pataz District, Peru* W. K. Witt,1 S. G. Hagemann,1 C. Villanes...Abstract Gold production from the northern Pataz district in the eastern Andean Cordillera of Peru has been...batholith, in the Vijus-Santa Filomena area of the district. Both are located within a central horst; similar...sulfide minerals, and the presence of barite and siderite veins suggest that the basement-hosted veins formed...hydrothermal alteration in the northern Pataz district. Introduction The Pataz-Parcoy goldfields are |  | | Book (edition) | | granular y cristales tabulares gruesos. Color blanco grisáceo, raya gris, brillo metálico. Clivaje {0001}...o complejas. Propiedades ópticas: opaco, color blanco, R1-R2=74,5-78,0% (540nm), pleocroismo y anisotropía...Propiedades físicas: granos redondeados. Color blanco grisáceo, se empaña a castaño, brillo metálico...Fuertemente magnético. Propiedades ópticas: opaco, color blanco, R=63,1 (540 nm), isótropo. Análisis químicos:...Neuquén (6). Se aloja en el yeso de la Fm. Auquilco. Cerro Partido, Neuquén (6). Se aloja en el yeso de la |  | | Report (issue) | | Mohabey 9. Vertebrate fauna from the Deccan volcanic province: Response to volcanic activity . . . . . . . ...12. Volcanism of the Central Atlantic magmatic province as the trigger of environmental and biotic changes...reversals related to the Central Atlantic magmatic province caused the end-Triassic biotic crisis—Evidence...458, and 465) devoted to impacts. Large igneous province volcanism, the other catastrophe related to mass...the interplanetary environment and large igneous province eruptions and their environmental effects, such |  | | Report (issue) | | Specimen of high-grade gold in quartz from the Oriental mine, Alleghany, California. Harold and Erica Van Pelt...topical investigations of 10 W. R. Dickinson mining districts, or for regional reconnaissance intended...subsurface was then almost nil except in local mining districts, and there our information extended to...time-honored professions such as petroleum and mining geology have been guided into unfamiliar directions...It may have been discovered before; I boast it is mine. —John of Salisbury The Entheticus, thirteenth century |  | | Book | | the Moon were of impact origin (Gilbert 1893). A mining engineer, Daniel Moreau Barringer, became interested...at the present time, it does not seem feasible to mine them commercially because of the lack of infrastructure...recovered from loess deposits in the Luochuan Province of northwest China (Li et al. 1993). The glass...layer of late Eocene age in the Bracewell Kaolin mine in eastern Jefferson County, Georgia. The major...extraterrestrial body into an active flood-basalt province. However, they also said that the Nuussuaq spherules |
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