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Rainbow is located on a massif at 2,275–2,335 m (7,464–7,661 ft) depth, shared with two fossil (mostly inactive) vent sites Ghost City and Clamstone. [2] As a slow-spreading ridge at approximately 2.2 cm/yr, extensive faulting has uplifted gabbro and peridotite and exposed ultramafic rock to cold seawater. [6]
A relief map of the Azores Triple Fault region and southern bathymetric zone. The hydrothermal vents and seamounts of the Azores (Portuguese: fontes hidrotermais e montes submarinos dos Açores) are a series of Atlantic seamounts and hydrothermal vents that are part of the Mid-Atlantic Ridge system, giving rise to the archipelago and bathymetric region of the Azores.
Consequently, many of the Medieval maps and charts that showed the Ocean Sea (the Atlantic Ocean) identified an island (or islands) represented in different positions or forms. The island of Brasil and/or Antillia (from the Brendan context) and the island of Sete Cidades, were usual geographic references that persisted in the proto-geography of ...
The Sete Cidades Massif occupies the northwestern portion of the island and corresponds to a circular central caldera 6 by 5 kilometres (3.7 mi × 3.1 mi), whose interior is occupied by various lakes and volcanic cones of pumice, lava domes and maars.
The Azores hotspot is marked 1 on map. The Azores hotspot is a volcanic hotspot in the Northern Atlantic Ocean. The Azores is relatively young and is associated with a bathymetric swell, a gravity anomaly and ocean island basalt geochemistry. [1] The Azores hotspot lies just east of the Mid-Atlantic Ridge [2]
Relief map showing the location of Gruta das Torres in the Azores Relief map showing Gruta das Torres is located in the western-central part of Pico Island. The Gruta das Torres is located on the lower western slope of Mount Pico, located in the parish of Criação Velha in Madalena in the western-mid part of the island of Pico, in the central-south of the Azores.
Bathymetry image of the Azores Plateau with some of the Azores islands marked in yellow. The Azores Plateau or Azores Platform is an oceanic plateau encompassing the Azores archipelago and the Azores triple junction in the North Atlantic Ocean. [1] It was formed by the Azores hotspot 20 million years ago and is still associated with active ...
Ribeirinha is a parish in the district of Ribeira Grande in the Azores. The population in 2011 was 2,349, [ 1 ] in an area of 17.98 km 2 . [ 2 ] It contains the localities Gramas, Lameiro, Ribeirinha, Santa Rosa and Santo António.