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Home > All Images > 1999 > September > 16 Sep 1999

Images Dated 16th September 1999

Available as Framed Photos, Photos, Wall Art and Gift Items

Choose from 6 pictures in our Images Dated 16th September 1999 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.


Molten pahoehoe lava spilling from a lava tube Featured 16 Sep 1999 Print

Molten pahoehoe lava spilling from a lava tube

Pahoehoe lava. Molten pahoehoe lava flowing from a lava tube (upper right). Pahoehoe is a thick lava which may flow at speeds of up to 50 kilometres per hour. Lava tubes are formed when the surface of a river of molten lava cools and solidifies, but the interior remains hot and liquid. Pahoehoe lava is a type of basic lava with a low silica content, giving it a low melting point. This means the lava can travel great distances from the crater or vent from which it issued. Photographed at Kilauea volcano, Big Island, Hawaii, USA

© G. BRAD LEWIS/SCIENCE PHOTO LIBRARY