. The earth and its inhabitants .. . 125 Miles. elevation of no more than 1,650 feet, and above the edge of the plateau rise a few isolated crests, attaining here and there a height of some 3,000 feet. Thus the orographic system of the Matto Grosso watershed, indifferently called " cordilheira " or " campos " dos Parexi, from the local Indian tribe, presents a mountainous aspect, only as seen from the south. On this steep side the face of the escarpments is carved into rocky walls, sharp peaks, or needles. Bat on the opposite side, facing the Tapajoz and Xingu basins, nothi
. The earth and its inhabitants .. . 125 Miles. elevation of no more than 1,650 feet, and above the edge of the plateau rise a few isolated crests, attaining here and there a height of some 3,000 feet. Thus the orographic system of the Matto Grosso watershed, indifferently called " cordilheira " or " campos " dos Parexi, from the local Indian tribe, presents a mountainous aspect, only as seen from the south. On this steep side the face of the escarpments is carved into rocky walls, sharp peaks, or needles. Bat on the opposite side, facing the Tapajoz and Xingu basins, nothing is seen except a long gently-inclined slope gradually merging in the Amazonian plains. The southern parts of the Araxa, as the edge of the plateau is generally called, date probably from paleozoic times, and here are represented carboniferous, devonian, and silurian formations. Farther north, in the zone of cataracts traversed by the Madeira, Tapajoz, Xingu, Tocantins, and their affluents, the rocks exposed by the erosions of these streams are all of crystalline character— granites, gneiss, porphyries, and quartzites.
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Keywords: ., bookauthor, bookcentury1800, bookdecade1890, booksubjectgeography
