出版社：Editora da Universidade Federal de Roraima (EdUFRR)
摘要：The relief of the north-northeast portion of the Roraima state is formed by extensive mountainous areas, isolated residual reliefs, reliefs of less prominent altitudes, to example, of the hills, that present rill slopes and deep valley, besides extensive leveling surfaces that present Cenozoic bolson plain. This landscape, constituted by different sceneries, it has been studied through several field works and of techniques of interpretation of orbital remote sensing images, in the context of the activities of the disciplines General Geomorphology and Remote Sensing Foundations of the Geography's course of the Universidade Federal of Roraima (UFRR). The morphologic features of the regional landscape present outstanding differences of landform, altimetry and sloping, and they contribute in the establishment of a very different landscape, where intense human action originated of the rural activity or irregular urban occupation is evidenced determining significant changes in this landscape. The interpretations obtained by the field works and analyses fotointerpretatives of the PALSAR/ALOS image reveal a varied landform that are exposed along the courses studied in the highways BR-401 and BR-174, among Bonfim, Boa Vista and Pacaraima.
