Antipodes Island

sopka (bez známé erupce za posledních ~12 000 let), New Zealand, Southern Pacific Volcanic Regions

Kde

New Zealand, Southern Pacific Volcanic Regions

Typ (GVP)

Pyroclastic cone(s)

Nadmořská výška

359 m

Poloha

-49,684°, 178,781°

The isolated, uninhabited Antipodes Islands are located in the south Pacific, 770 km SE of New Zealand. Volcanism has been dominantly pyroclastic, and the presence of well-preserved scoria cones suggests a Holocene age (LeMasurier and Thomson, 1990). The most recent eruptions occurred on the cone forming Mount Galloway and Mount Waterhouse at the center of 4-km-wide main island. Marine erosion has exposed sections through tuff cones at Perpendicular Head and Albatross Point at the NE and SE tips of the island, respectively. Radiometric dates indicated basalts that are younger than 1 million years (250-500 ka with high uncertainty W of Reef Point), and Cullen (1969) also speculated that volcanism may have begun in the Tertiary and persisted "almost to the present day."

Text: Smithsonian Global Volcanism Program.

Údaje o sopce: Smithsonian Global Volcanism Program. Další sopky a průduchy.