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Deep in Patagonia



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Sinking Feeling
Photograph by Carsten Peter

Black hole in a universe of gray, this cave entrance marks the convergence of a hundred small channels in the marble plateau. Such outcrops are superb examples of karst topography—exposed, heavily weathered limestone. On Madre de Dios the limestone was laid down millions of years ago as tropical coral reefs. During their month-long expedition the team surveyed five miles (eight kilometers) of caves, none of which had ever been explored.




Camera: Nikon F5
Film Type: Fujichrome Velvia 50
Lens: 20mm
Speed and F-Stop: 1/20 @ f/8
Weather Conditions: Scattered clouds, changing, sometimes rain, sometimes the clouds breaking through to sunshine
Time of Day: Late morning
Lighting Techniques: Natural light





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