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Caving in Papua New Guinea
SEPTEMBER 2006
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In Learn More the National Geographic magazine team shares some of its best sources and other information to expand your knowledge of our featured subjects. Special thanks to the Research Division.
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 Did You Know?
What makes a cave a cave? Why are Phantom Pot and Ora Cave, both caves in the Ora river cave system, two different caves instead of one? If you take a look at the illustration of the cave system on pages 100-101 of the September 2006 issue, you'll notice an "unexplored sump" between the two caves. In caving parlance, it is generally accepted that two caves can be classified as one only if a person has been able to explore the connecting sumps. Oftentimes, conditions are such that a caver cannot make it through a sump. On this expedition, the cave upstream from the connecting unexplored sump was reached via another entrance, a "pot" or pothole, earning the cave the name Phantom Pot.
—Emily Krieger
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Related Links
National Speleological Society
www.caves.org
Brush up on your caving basics and lingo (beginning with "spelunking"—the formal word for caving) at the website of the NSS, an organization devoted to the study, exploration, and conservation of cave and karst resources.
Speleogenesis and Evolution of Karst Aquifers Journal
www.speleogenesis.info
Here's a searchable online scientific journal covering international studies on solution caves, hydrogeology, and the evolution of karst topography.
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Bibliography
Bates, Robert L., and Julia A. Jackson, eds. Dictionary of Geological Terms, 3rd ed. American Geological Union, Anchor Press/Doubleday, 1984.
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NGS Resources
Klimchouk, Alexander. "Call of the Abyss." National Geographic (May 2005), 70-85.
Aulenbach, Nancy Holler, Hazel A. Barton, and Marfé Ferguson Delano. Exploring Caves: Journeys into the Earth. National Geographic Books, 2001.
Roberts, David. "Exploring the Place of Fright." National Geographic Adventure (July/August 2001), 52-60, 62, 64, 66, 130.
Taylor, Michael Ray. Caves: Exploring Hidden Realms. National Geographic Books, 2000.
Brower, Kenneth. "Face to Face in New Guinea." National Geographic Traveler (March 2000), 82-96.
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