The ore deposits of Utah . C. PHOTOMICROGRAPH OF QUARTZ MONZONITEPORPHYRY ENRICHED WITH BIOTITE, BING-HAM DISTRICT. Small dark areas, secondary biotite; light Eireas, muscovite,quartz, aud orthoclase. Enlarged 30 di< D. PHOTOMICROGRAPH OF QUARTZ MONZONITEPORPHYRY ENRICHED WITH ORTHOCLASE,BINGHAM DISTRICT. Small, light areas, orthoclase. Enlarged 30 diameters. ORE DEPOSITS. 165 The following tables show the chemical andmineralogic changes that have taken place inthe alteration of the wall rocks of the differenttypes of reins: Alteration of wall rock of tourmaline-quartz veins. Analy
The ore deposits of Utah . C. PHOTOMICROGRAPH OF QUARTZ MONZONITEPORPHYRY ENRICHED WITH BIOTITE, BING-HAM DISTRICT. Small dark areas, secondary biotite; light Eireas, muscovite,quartz, aud orthoclase. Enlarged 30 di< D. PHOTOMICROGRAPH OF QUARTZ MONZONITEPORPHYRY ENRICHED WITH ORTHOCLASE,BINGHAM DISTRICT. Small, light areas, orthoclase. Enlarged 30 diameters. ORE DEPOSITS. 165 The following tables show the chemical andmineralogic changes that have taken place inthe alteration of the wall rocks of the differenttypes of reins: Alteration of wall rock of tourmaline-quartz veins. Analyses. NaaO. H^O- H2O+ S .14 .72 .81 Trace. .27 la 62. 56 .29 .07 .14 .70 .24 .02 .13 .45 .09 Density. Weight of the principal oxides (grams in 1 cubic centimeter). ,.+ la . 048 Increase ( + )ordecrease (-)• + .015 - .014+ .007 - .041 - .137 - .095+ .067 .000+ .049 - .005+ .048 Mineral compos
Size: 1549px × 1613px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectminesandmineralresou
