Location of the Chatham Islands
|Location||Southern Pacific Ocean|
|Area||966 km2 (373 sq mi)|
|Highest elevation||299 m (981 ft)|
|Population||600 (2013 census)|
|• Summer (DST)|
The Chatham Islands are a New Zealand archipelago in the Pacific Ocean. They are about 800 kilometres (500 mi) east of the South Island of New Zealand. The archipelago is a cluster of about ten islands in 60-kilometre (37 mi) radius. The largest are Chatham Island and Pitt Island.
Some of these islands are now nature reserves to protect the unique flora and fauna. As of 2013[update] the islands had a resident population of 600. The local economy depends largely on conservation, tourism, farming, and fishing.
Geology[change | change source]
The Chatham Islands are part of the now largely submerged continent of Zealandia.
The rocks are a Mesozoic schist basement covered by marine sedimentary rocks. The rocks show sections of basalt from a series of eruptions. Volcanic activity has occurred multiple times since the Cretaceous. At present there is no active volcanism near the Chatham Rise.
References[change | change source]
- "2013 Census QuickStats about a place: Chatham Islands Territory". Statistics New Zealand. Retrieved 16 December 2017.
- Davis, Denise; Solomon, Māui. "Moriori - The impact of new arrivals". Te Ara: The Encyclopedia of New Zealand. Retrieved 8 December 2018.
- Adams, C. J. (1979). "Age and correlation of volcanic rocks of Campbell Island and Metamorphic basement of the Campbell Plateau, South-west Pacific". New Zealand Journal of Geology and Geophysics 22 (6): 679–691. doi:10.1080/00288306.1979.10424176.
- Hoernle, K.; White, J.D.L.; Van Den Bogaard, P.; Hauff, F.; Coombs, D.S.; Werner, R.; Timm, C.; Garbe-Schönberg, D. et al. (2006-08-15). "Cenozoic intraplate volcanism on New Zealand: Upwelling induced by lithospheric removal" (in en). Earth and Planetary Science Letters 248 (1–2): 350–367. doi:10.1016/j.epsl.2006.06.001. ISSN 0012-821X.