Geology and fossils of Chatham Island, New Zealand

Paul D Taylor The beach near Maunganui on the north coast of Chatham Island. The Chatham Islands are a far-flung outpost of New Zealand (Fig. 1). This isolated archipelago sits in the Pacific Ocean, some 850km east of Christchurch, and lies very close to the International Date Line, making the Chatham Islands one of the first places in the world to see the dawning of each new day. Few New Zealanders have ever visited the Chatham Islands – most know of them only from the country’s national weather forecast. Fig. 1. Map of the Chatham Islands. Inset shows their location relative to the New Zealand mainland. Just over 700 people inhabit the Chathams. The great majority live on the main Chatham Island, with about 30 on the smaller Pitt Island. The islands were first visited by Europeans in 1791, who arrived aboard HMS Chatham, captained by Lieutenant William Robert Broughton. At that time, they were inhabited by a peace-loving people called the Moriori, who had probably colonised them from the New Zealand mainland about 500 years ago. European visitors, including whalers, were later joined by Māori from the North Island of New Zealand, setting in motion a series of tragic events that culminated in the extinction of the native Moriori. The last full-blood Moriori – Tommy Solomon – died in 1933. I’ve had the good fortune to visit the Chatham Islands on three occasions, each time to study and collect Cretaceous and Cenozoic bryozoans under the expert guidance of Hamish … Read More

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