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Deep, The (2/8)

This is also part of this series: Earth Story Series (8)

Subjects: Anthropology, Archaeology, Environment, General Interest, Geography, Natural History, Nature, Ocean, Science

Grade Level: JrH-Adult
Producer: BBC
Closed Captioned: No

Running Time: 50 mins
Country of Origin: Great Britain
Study Guide: No

Copyright Date: 1998
Available in French: No

Earth Story journeys to a world where the sun never rises and where the ambient air pressure is equivalent to two elephants sitting on a person's lap – the bottom of the Atlantic Ocean. This other world, where the temperature hovers just above zero but is occasionally pierced by jets of water boiling at 300ºC, has revolutionised the way scientists think about this planet and filled in many of the missing elements in the unfolding detective story of the Earth's history. At the heart of the tale is the mid-Atlantic ridge – a vast chain of submarine volcanoes stretching the length of the Atlantic Ocean and then on through the rest of the world's oceans – a continuous mountain chain running for 60,000 kilometres. The cameras join British geologist Susan Humphries as she embarks on a journey in the research submarine, Alvin, to the crest of the ridge – 1,700m below the waves. This strange volcanic realm holds the key to how the surface of the Earth is created and continuously renewed.

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