Coulman Island, Ross Sea, Antarctica

Location: 169.6E, 73.5S
Elevation: 6,553 feet (1,998 m)

Coulman Island is a complex of overlapping shield volcanoes. The most prominent feature is Coulman caldera on the south end of the island. The caldera is 3 miles (5 km) wide and 2,300 feet (700 m) deep. In addition to two major vents there are numerous cinder cones and tuff rings. This photo shows the cliffs along the north edge of the island where rocks dip outward away from one of the volcanoes. Relief in the photo is about 3,600 feet (1,100 m). Emperor penguins are in the foreground. A sample from the island provided a date of 7.2 million years. Photograph by Warren Hamilton, U.S. Geological Survey, November, 1964

Sources of Information:

Hamilton, W., 1972, The Hallett Volcanic Province, Antarctica: U.S. Geological Survey Professional Paper 456C, 62 p.

Harrington, H.J., 1959, Narrative of a visit to the newly discovered Emperor Penguin rookery at Coulman Island, Ross Sea, Antarctica: Notornis, v. 8, no. 5, p. 127-132.

McIntosh, W.C., and Kyle, P.R., 1990, A.4. Coulman Island, in LeMasurier, W.E., and Thomson, J.W., eds., Volcanoes of the Antarctica Plate and Southern Oceans, American Geophysical Union, Antarctica Research Series, v. 48, p. 43-45.

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