Word: subterranean
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Getting there requires the skills of a subterranean mountain climber, which is why Lake of the Clouds is off limits to the public. The underground trek involves scrambling through narrow passages, navigating around steep crevasses and using ropes to descend two drop-offs -- the second of which encompasses a 60-m (200 ft.) cliff. Turn off the miner's light on your helmet, and you cannot see your hand in front of your face...
...those found at Mammoth Cave in Kentucky takes shape. The unusual limestone terrains where this process occurs are known as karst, named for one such region in Slovenia that is famous for its caves. About 15% of the earth's terrain is karst. By studying and dating the old subterranean waterways, researchers can tell how wet or dry past climates have been...
...that Carlsbad was carved not by carbonic acid but by sulfuric acid, produced by a reaction between oxygen dissolved in groundwater and hydrogen sulfide bubbling up from deep below the earth's surface. This highly toxic solution, which would have killed anyone present at the time, sculpted the many subterranean chambers at Carlsbad...
...simple communities that may be made up of only four species," says Tom Poulson, professor of biology at the University of Illinois at Chicago. "But that allows us to look in greater detail at what is going on, say, between predator / and prey." As a result, biologists can study subterranean ecosystems in their entirety -- a feat that often proves impossibly complex aboveground...
...SCIENCE: Subterranean Insights...