 | | Journal (article/letter/editorial) | | THE ERUPTIVE ROCKS OF MEXICO. III of the recently published Bosquejo Geológico de consists of a study...Ezequiel Ordoñez of the eruptive México rocks of Mexico.1 This may be regarded as the most complete and...observations on the rocks of the silver-bearing regions of Mexico which are made with great accuracy and fullness...among the rocks of the silver-bearing regions of Mexico and their resemblance to those of Nevada and Germany...about the only authoritative one on the rocks of Mexico as a whole, which can be consulted. The names which |  | | Journal (article/letter/editorial) | | JANUARY, i928 No. I THE GUANAJUATO MINING DISTRICT, GUANAJUATO, MEXICO. • ALFRED WANDKE AND JUAN...Guanajuatowhich is a part of the great Central Plateauof Mexico. This district shows considerablediversity of...of the northwest-trendingranges, the Sierra of Guanajuato and the Sierra Gorda, rise from 600 to 1,2oo...surroundingintermontane basins. The Sierra of Guanajuato,a long anticlinalblock-faultedfold in which the...surroundingvalleysor basins and severalpeaks,as thoseof San Miguel de los Llanitos (2,83I meters), Cu.bilete |  | | Book | | the species name, zeolites such as analcime, chabazite, stilbite, and heulandite can be easily identified...indicated simply by the modifiers such as ordered chabazite rather than willhendersonite or disordered natrolite...priority) analcime (pollucite and wairakite), chabazite (herschelite and willhendersonile), gismondine...compositions, regardless of the crystal system. CHABAZITE GROUP Chabazite, herschelite, and willhendersonite represent...composition and disorder-order in the framework. Most chabazite crystals are calciumdominant, although potassium- | | | Book | | the species name, zeolites such as analcime, chabazite, stilbite, and heulandite can be easily identified...indicated simply by the modifiers such as ordered chabazite rather than willhendersonite or disordered natrolite...priority) analcime (pollucite and wairakite), chabazite (herschelite and willhendersonile), gismondine...compositions, regardless of the crystal system. CHABAZITE GROUP Chabazite, herschelite, and willhendersonite represent...composition and disorder-order in the framework. Most chabazite crystals are calciumdominant, although potassium- |
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