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St. Peter and Paul Rocks

Saint Peter and Saint Paul Archipelago
Arquipélago de São Pedro e São Paulo.jpg
Brazilian Navy scientific station and lighthouse of the Saint Peter and Saint Paul Archipelago
Location Saint Peter and Saint Paul Archipelago.png
Geography
Location Atlantic Ocean
Coordinates 00°55′1″N 29°20′45″W / 0.91694°N 29.34583°W / 0.91694; -29.34583Coordinates: 00°55′1″N 29°20′45″W / 0.91694°N 29.34583°W / 0.91694; -29.34583
Archipelago Arquipélago de São Pedro e São Paulo
Total islands 15
Major islands Belmonte, Challenger, Nordeste, Cabral, South
Area 15,000 m2 (160,000 sq ft)
Highest elevation 17 m (56 ft)
Administration
Brazil
Region Northeast
State Pernambuco
Demographics
Population 4
Additional information
Official website www.mar.mil.br/secirm/proarq.htm

The Saint Peter and Saint Paul Archipelago (Portuguese: Arquipélago de São Pedro e São Paulo) is a group of 15 small islets and rocks in the central equatorial Atlantic Ocean. It lies in the Intertropical Convergence Zone, a region of the Atlantic characterized by low average winds punctuated with local thunderstorms. It lies approximately 510 nmi (940 km; 590 mi) from the nearest point of mainland South America (the northeastern Brazilian coastal town of Touros); 625 km (388 mi) northeast of the archipelago of Fernando de Noronha; 990 km (620 mi) from the city of Natal; and 1,824 km (1,133 mi) from the west coast of Africa. Administratively, the archipelago belongs to Brazil and is part of the special "state district" (Portuguese: distrito estadual) of Fernando de Noronha, in the state of Pernambuco, in spite of the very large distance between the two island groups and the even larger distance to the state mainland.

The islets expose serpentinized abyssal mantle peridotite and kaersutite-bearing ultramafic mylonite atop the world's highest and yet only second largest megamullion (after the Parece Vela megamullion under Okinotorishima in the Pacific Ocean). This grouping is the sole location in the Atlantic Ocean where the abyssal mantle is exposed above sea level.


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