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Separated by Rupture

Perito Moreno Glacier and Lago Argentino, Los Glaciares National Park, Patagonia, Argentina.

 

All rights reserved - Copyright © Waldemar Halka

 

Periodically, Perito Moreno glacier advances over the L-shaped Lago Argentino, forming a natural dam which separates the two halves of the lake when it reaches the opposite shore. With no escape route, the water-level on the Brazo Rico side of the lake can rise by up to 30 meters above the level of the main lake. The enormous pressure produced by the height of the dammed water finally breaks the ice barrier holding it back, in a spectacular rupture event. The separated piece of ice depicted in this photo is a chunk of the dam left on land after such a rupture event.

 

Photo information:

Nikon D7000

Nikkor AF-S 24-120mm f/4G VR @85mm | f/8 | 1/125 sec -1/3 EV | ISO 100

Nikon CLP filter

Post-processed in LR4 and CS5

 

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Taken on March 21, 2012