Pago Eroded Volcano in American Samoa

Autor:

National Park Service

Shortlink:

https://czwiki.cz/b/15b6e

Zdroj:

Wikimedia Commons

Formát:

2560 x 1920 Pixel (1131775 Bytes)

Popis:

The eroded shield volcano of Pago at Pago Pago Harbor on Tutuila Island, American Samoa. The mountain summit (Matafao Peak) and upper slopes are a volcanic plug of trachyte (about 1.02 million years old). The lower slopes are volcanic breccia of the Pago Volcanics (about 1.18 million years old). Reference: McDougall, I. (1985) Age and Evolution of the Volcanoes of Tutuila, American Samoa, Pacific Science, volume 39 number 4, pages 311-320. https://scholarspace.manoa.hawaii.edu/bitstream/handle/10125/938/v39n4-311-320.pdf?sequence=1

Licence:

Public domain

Credit:

http://pacificislandparks.files.wordpress.com/2012/07/afono-pass2.jpg at http://pacificislandparks.com/2012/07/23/national-natural-landmark-part-v/

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