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The Dunedin Volcano is an extensively eroded multi-vent shield volcano that was active between 16 and 10 million years ago. It originally extended from the modern city of Dunedin, New Zealand to Aramoana about 25 km away. Extensive erosion has occurred over the last 10 million years and Otago Harbour now fills the oldest parts of the volcano. The remnants of the volcano form the hills around Otago Harbour (including Mount Cargill, Flagstaff, Saddle Hill, Signal Hill, and Otago Peninsula). Volcanism began in a shallow marine environment. The volcano became larger with flows of basalt and minor trachyte creating the bulk of the volcano. The final phase of eruptions are preserved as phonolite domes around Mount Cargill.

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rdf:type
rdfs:label
  • Dunedin Volcano (en)
rdfs:comment
  • The Dunedin Volcano is an extensively eroded multi-vent shield volcano that was active between 16 and 10 million years ago. It originally extended from the modern city of Dunedin, New Zealand to Aramoana about 25 km away. Extensive erosion has occurred over the last 10 million years and Otago Harbour now fills the oldest parts of the volcano. The remnants of the volcano form the hills around Otago Harbour (including Mount Cargill, Flagstaff, Saddle Hill, Signal Hill, and Otago Peninsula). Volcanism began in a shallow marine environment. The volcano became larger with flows of basalt and minor trachyte creating the bulk of the volcano. The final phase of eruptions are preserved as phonolite domes around Mount Cargill. (en)
name
  • Dunedin Volcano (en)
geo:lat
geo:long
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Otago_Harbour_panorama.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Organ_pipes_columnar_joints_Dunedin.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Lighthouse_above_cliffs_at_Taiaroa_Head.jpg
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Wikipage page ID
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Link from a Wikipage to an external page
sameAs
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thumbnail
age
country
  • New Zealand (en)
period
  • Miocene (en)
region
  • Otago (en)
type
  • Igneous (en)
georss:point
  • -45.848 170.636
has abstract
  • The Dunedin Volcano is an extensively eroded multi-vent shield volcano that was active between 16 and 10 million years ago. It originally extended from the modern city of Dunedin, New Zealand to Aramoana about 25 km away. Extensive erosion has occurred over the last 10 million years and Otago Harbour now fills the oldest parts of the volcano. The remnants of the volcano form the hills around Otago Harbour (including Mount Cargill, Flagstaff, Saddle Hill, Signal Hill, and Otago Peninsula). Volcanism began in a shallow marine environment. The volcano became larger with flows of basalt and minor trachyte creating the bulk of the volcano. The final phase of eruptions are preserved as phonolite domes around Mount Cargill. Traces of the old Dunedin Volcano are best seen in the Dunedin Botanic Garden's geology walk, the cliffs at Aramoana and the geomorphology of Mount Cargill which has preserved lava domes. Basaltic columns are also to be found as prominent features above Second Beach at St Clair and at Blackhead. This 'Dunedin Volcano Animation' shows various locations around Dunedin with information on age of the rocks and general evolution of the Dunedin Volcano and more distant volcanism. . (en)
namedfor
overlies
  • Waipuna Bay Formation (en)
prilithology
  • Basalt, trachyte, phonolite and breccia (en)
prov:wasDerivedFrom
page length (characters) of wiki page
foaf:isPrimaryTopicOf
geo:geometry
  • POINT(170.63600158691 -45.847999572754)
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