* Astronomy

Members Login
Post Info TOPIC: Longest underwater cave system


L

Posts: 131433
Date:
RE: Longest underwater cave system
Permalink  
 


Completing the longest dive from one cave opening to another, divers on a treacherous 20-hour journey proved that vast underwater networks in Florida are linked.
Jarrod Jablonski and Casey McKinlay dropped into a small cave entrance called Turner Sink on the afternoon of December 15 and dove to a depth of some 300 feet (91 meters).
They then swam through 7 miles (11.25 kilometres) of underground freshwater caveenjoying what McKinlay called "an incredible ride"before resurfacing the morning of the 16th at Wakulla Springs State Park near Tallahassee, Florida.
It took the pair over 6 hours to complete the two-entrance cave traverse, and more than 14 more to gradually decompress before surfacing.

Read more

__________________


L

Posts: 131433
Date:
Son Trach River
Permalink  
 


A Scottish student has used the skills learned in getting his university degree to discover the world's longest underground river. Peter MacNab, 30, has just returned from a month-long caving expedition to Vietnam where he discovered the longest cave in mainland Southeast Asia, through which runs what is thought to be the world's longest underground watercourse--the Son Trach River.

Read more

__________________


L

Posts: 131433
Date:
RE: Longest underwater cave system
Permalink  
 


Two scuba divers in the Yucatan peninsula have discovered what is the world's longest underground river known so far, Mexican daily newspaper "La Jornada" reported Saturday.
The discovery occurred in January near the Tulum archaeological zone, south of Cancun, when the German and English divers Robbie Schmittner and Steve Boagarts managed to connect two rivers previously thought to be independent. The total extension measured 153. 6 kilometres with a maximum depth of 72 metres.

Read more

87.47224W_20
Expand (104kb, 804 x 566)

Latitude=20.21697N, Longitude=-87.47224W (roughly)

__________________


L

Posts: 131433
Date:
Permalink  
 

Cave divers in Mexico's Yucatan peninsula have discovered what may be the world's longest underground river, connecting two cave systems with a waterway at least 95 miles long.
A group of foreign divers exploring the area near the Caribbean beach resort of Playa del Carmen have yet to name the stretch, but believe it could be connected to two other major systems, adding more than 125 miles to its length.

Read more

__________________


L

Posts: 131433
Date:
Permalink  
 

A pair of cave divers said Monday they have found subterranean passages in Mexico's Yucatan peninsula that constitute the world's longest underwater cave system. British cave diver Steve Bogaerts said he and Robbie Schmittner, of Germany, found flooded underground passages connecting two previously known cave systems - a discovery that shows how interconnected and vulnerable the Yucatan's fabled underground water system is.
Gene Melton, chairman of the U.S.-based National Speleological Society, a nongovernmental association that tracks cave explorations, confirmed the discovery.
For thousands of years, Mayan Indians depended on water found in the caves and in lakes formed by sinkholes - areas where the caves' ceilings collapsed, opening them to the surface. The lakes dot the Yucatan peninsula, now one of the world's fastest-growing sites for tourism and resort developments.
Bogaerts said his dives proved a connection between the Nohoch Nah Chich caves and the Sac Actun system, which together measure 95 miles in length. That connection shows that many of the seemingly isolated watering holes are part of a single larger system.
The longest previously known submerged cave system is the 91-mile Ox Bel Ha system, located in the same general area, according to documents posted by the Speleological Society on its Web site.

"That's the important thing for people to understand. ... The point is that they're so interconnected. There are so many cave systems that if there's a point of pollution in any one particular area it can spread very extensively throughout the entire system" - Steve Bogaerts.

Bogaerts and Schmittner spent four years swimming the length of the system, making about 500 dives with scuba tanks, linking one sinkhole lake to the next. Some passages were "big enough for a jumbo jet," while others were so narrow divers had to remove their tanks to wiggle through.
The breakthrough discovery - the passage connecting Nohoch Nah Chich ("The Giant Birdcage" in Maya) and Sac Actun ("White Cave") - was made by the two divers on Jan. 23.
Jonathan Martin, an assistant professor of geology at the University of Florida, said the discovery - which has not yet been published in scientific journals - appeared feasible, based on the geological formations of the Yucatan.

www.caves.org


__________________
Page 1 of 1  sorted by
Quick Reply

Please log in to post quick replies.



Create your own FREE Forum
Report Abuse
Powered by ActiveBoard