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The Summit of the Augustine Volcano, Alaska, USA

59.3N 153.4W

July 20th, 2009 Category: Volcanoes

Alaska, USA - July 16th, 2009

Alaska, USA - July 16th, 2009

The Augustine Volcano is located on Augustine Island in the Cook Inlet, off the southcentral coast of Alaska. The nearly circular, uninhabited island formed by the volcano is 12 km (7.5 mi) wide east-west and 10 km (6 mi) north-south; a nearly symmetrical central summit peaks at an altitude of 1,260 meters (4,134 ft).

Augustine’s summit consists of several overlapping lava dome complexes placed during many historic and prehistoric eruptions. Most of the fragmental debris exposed along its slopes comprises angular blocks of dome-rock andesite, typically of cobble to boulder size but carrying clasts as large as 4 to 8 meters (10 to 25 feet), rarely as large as 30 meters (100 ft). The surface of such deposits is skeet, a field of steep conical mounds and intervening depressions with many meters of local relief.

This image has been orthorectified to correct for geometric distortion. Please click here to compare with a previous, un-orthorectified image and to learn more about the Augstine Volcano.

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