. Bulletin of the Geological Society of America. Geology. 286 W. H. HOBBS—GUADIX FORMATION OF GRANADA, SPAIN and, as lie believed the beds to dip beneath those of notably different type on which the Alhambra is built, be gave to the latter deposits the name Alhambra formation. The Guadix formation is areally separate from both the others, though partaking of the characters of each. The map of the Spanish Geological Commission* shows the greater part of the three formations as diluvial, and the resemblance of the Block formation in particular to a glacial deposit is certainly most striking. Unt
. Bulletin of the Geological Society of America. Geology. 286 W. H. HOBBS—GUADIX FORMATION OF GRANADA, SPAIN and, as lie believed the beds to dip beneath those of notably different type on which the Alhambra is built, be gave to the latter deposits the name Alhambra formation. The Guadix formation is areally separate from both the others, though partaking of the characters of each. The map of the Spanish Geological Commission* shows the greater part of the three formations as diluvial, and the resemblance of the Block formation in particular to a glacial deposit is certainly most striking. Until the writer had examined numerous localities he was compelled to adopt the view that local glaciers from the Sierra Nevada had deposited the ma-. if i €.J-/ Figure 1.—-Map of the Guadix and -neighboring Formations. Modified from the map by the Spanish Geological Commission. The mass of 'ne Sierra Nevada is composed of crystalline schists of Silurian or greater age. J, Jurassic ; T, Triassic ; X, Neocene ; P, Pliocene ; G, Guadix formation. terial, and it appears that every geologist who has studied the district has given prominence to a supposed glacial origin for the formation. Mo- raines in the valley of the Genii were even described by Bertrand and Kilian % state that the lower layer of the Block formation at Talara contains calcareous pebbles which are polished and striated, and they quote Taramelli and Mercalli as holding this opinion of a * Sheet no. 52, Granada, second edition. t Schimper : Voyage geologique botanique au Sud d'Espagne. 1849. + Bertrand et Kilian : Eludes sur los terrains secondaires et tertiares dans les provinces de Crenada et de Malaga. Mem. de l'Acad. de Sciences de l'lnstitut National de France, t. xxx, p. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ge
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