| Chatham Rise |
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| historical geology | |
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Relative to the rest of the Pacific Ocean waters around New Zealand, the Chatham Rise is relatively shallow, no more than 1000 metres deep at any point. This shallowness is made more remarkable by the depth of the ocean immediately to the north and south. To the northeast, the Hikurangi Trench , an extension of the much deeper Kermadec Trench , drops to below 3000 metres close to the New Zealand coast, and further from the coast the Rise borders on the Hikurangi Plateau . To the south, similar depths are achieved in the Bounty Trough . Past the eastern end of the rise, the sea floor drops away to the abyssal plain. Geologically and tectonically, the Chatham Rise can be thought of as an extension of the eastern South Island. It was largely dry land around the s (such as '' Araucaria '', '' Mataia '' and '' Podocarpus '') and Lycopodiopsida (clubmosses). Some Angiosperm s were also present. Dinosaur s such as Theropod s dwelt on the peninsula and probably evolved into numerous Endemic forms.(Stilwell ''et al.'' 2006) REFERENCES
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