STS-086 Earth Sciences and Image Analysis Photographic Highlights

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STS086-723-79

STS086-723-79         Click the photo number to access all resolutions available and the database record.

New Zealand: Mt. Cook and the Southern Alps, South Island, New Zealand. Mt. Cook is the centerpiece of this photograph, with Tasman glacier flowing down its southeast flank. The waters of Lake Pukaki, which is fed by the Tasman and Murchison glaciers, contain rock that has been ground to the consistency of flour by the ice; the suspended rock flour gives the lake its lighter color (cf. Lakes Ohau, Hawea, Wanaka). The Southern Alps of South Island have been uplifted along the Alpine fault zone, which marks the boundary between the Australian and Pacific tectonic plates of the Earth's crust. Mt. Cook rises above 11,000 ft (3754 m) and occupies a point where the straight segment of the Alpine fault zone begins to branch off into southeasterly splays. Lakes Pukaki, Ohau, Hawea and Wanaka lie in valleys formed by such faults.

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