. Bulletin of the Geological Society of America. Geology. 274 J. C. BRENNER—DECOMPOSITION OF ROCKS IN BRAZIL. The Serra de Macahe east of Nova Fribiirgo is characterized by the- peaks and cones resembling those about Rio de Janeiro,'^Myhile from mm. Petropolis along the Uniao e Industria road toward Juiz; de Fora and be\'ond almost to Sitio (north of the crest of the Serra da Manticpieira) the domed peaks and ex- foliating cliffs give character to the landscape, f The Pedra de Parahybuna, near Juiz de Fora in Minas Ge- raes, is a fine example of the exfoliation of a massive rock. Dome-like sum
. Bulletin of the Geological Society of America. Geology. 274 J. C. BRENNER—DECOMPOSITION OF ROCKS IN BRAZIL. The Serra de Macahe east of Nova Fribiirgo is characterized by the- peaks and cones resembling those about Rio de Janeiro,'^Myhile from mm. Petropolis along the Uniao e Industria road toward Juiz; de Fora and be\'ond almost to Sitio (north of the crest of the Serra da Manticpieira) the domed peaks and ex- foliating cliffs give character to the landscape, f The Pedra de Parahybuna, near Juiz de Fora in Minas Ge- raes, is a fine example of the exfoliation of a massive rock. Dome-like summits are also character- ^ istic of the gneiss and granite areas in the dia- mond district of Minas. X Itatiaia, the noted high mountain in the west end of the state of Rio de Janeiro, has the rounded outHnes and exfoliate boulders produced by concentric weathering of massive-. 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 Geological Society of America. [New York : The Society]
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