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Cile · Vulcano a scudo

Isola di Pasqua

Rapa Nui

Tipo
Vulcano a scudo
Altitudine
501 m
Ultima eruzione
Sconosciuto
Isola di Pasqua
Foto: American at German Wikipedia · CC BY-SA 3.0 · Wikimedia Commons
Tipo
Vulcano a scudo
Paese
Cile
Regione
Pacifico meridionale / Salas y Gómez Ridge Volcano Group
Altitudine
501 m
Coordinate
-27.114, -109.356
Ultima eruzione
Sconosciuto
Contesto tettonico
Zona di rift / Crosta oceanica (< 15 km)
Forma vulcanica
A scudo
Roccia principale
Basalto / Picrobasalto
Sintesi geologica

The triangular Rapa Nui (also known as Isla de Pascua, or Easter Island), is renowned for its dramatic megalithic statues of hand-carved basalt. The island sits atop the largely submarine Salas y Gómez Ridge, which trends eastward from the East Pacific Rise. It is composed of three principal volcanoes and more than 70 subsidiary vents. Rano Kau at the SW tip includes flat-bottomed crater 1.5 km wide, while Poike volcano is at the E point; both are of Pleistocene age. Terevaka is a broad shield volcano of Pliocene-to-Pleistocene age at the northern point of the island, which is capped by many pyroclastic cones; the last stage of activity consisted of eruptions from multiple rift zones. The latest lava flows, at Hiva-Hiva near the west-central coast, are thought to be less than 2,000 years old.

Sintesi da Wikipedia

Riassunto in inglese

Easter Island is an island and special territory of Chile in the southeastern Pacific Ocean, at the southeasternmost point of the Polynesian Triangle in Oceania. The island is renowned for its nearly 1,000 extant monumental statues, called moai, which were created by the early Rapa Nui people. In 1995, UNESCO named Easter Island a World Heritage Site, with much of the island protected within Rapa Nui National Park. Easter Island is also the only territory in Polynesia where Spanish is an official language.

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