| Borborema Plateau | |
|---|---|
| Planalto da Borborema | |
 Rock formations of the Borborema Plateau, Queimadas, Paraíba | |
| Highest point | |
| Elevation | 1,260 |
| Coordinates | 7°S 37°W / 7°S 37°W |
| Geography | |
  Borborema Plateau Borborema Plateau in Brazil | |
| Location | Alagoas, Pernambuco, Paraíba, Rio Grande do Norte, Brazil |
The Borborema Plateau (Portuguese Planalto da Borborema, also known as the Serra da Borborema) is a plateau in northeastern Brazil which extends across the states of Pernambuco, Paraíba, and Rio Grande do Norte.[1] The plateau is the northeasternmost portion of the Brazilian Highlands and is the most relevant watershed of its region. It ranges approximately 400 kilometres (250 mi) from north to south and 200 kilometres (120 mi) from east to west.[2] More than 100 rivers originate from the plateau, including the Moxotó, Mundaú, Pajeú, Paraíba do Norte, Seridó, and Una.[2]
The Borborema Plateau serves as an orographic barrier, despite its relatively low elevation, against the moist easterly winds of the Atlantic Ocean. Areas west of the plateau, which make up part of the sertão, are arid and prone to drought. The Pajeú River, the largest tributary of the São Francisco River, originates from the Borborema.[3][2]
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Transcription
Geology
The Borborema Plateau is part of a huge anastomosing shear zone. The plateau is composed primarily of igneous and metamorphic rock.[4]
References
- ^ "Borborema Plateau". Encyclopædia Britannica. Encyclopædia Britannica Inc. 2015. Retrieved 2015-07-06.
- ^ a b c Webb, Kempton (1974). The changing face of Northeast Brazil. New York: Columbia University Press. pp. 24–30. ISBN 9780231037679.
- ^ "O tal do rio Pajeú que despeja no São Francisco" (in Portuguese). Maceió, Alagoas, Brazil: Comitê da Bacia Hidrográfica do Rio São Francisco. 2014. Archived from the original on 2015-03-21. Retrieved 2015-02-13.
- ^ Vauchez A, Neves S, Caby R, Corsini M, Egydio-Silva M, Arthaud M, Amaro V. (1995). The Borborema shear zone system, NE Brazil. Journal of South American Earth Sciences. July–October 1995. 8(3–4):247–266.
| International | |
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| National | |
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This page was last edited on 5 February 2023, at 13:22