NASA-funded robotic sub finds bottom of world's deepest sinkhole
A robotic vehicle designed for underwater exploration plunged repeatedly into the depths of Mexico’s mysterious El Zacatón sinkhole
in late May, finding its previously undiscovered bottom 318 meters below the surface and generating a sonar map of its inner dimensions. The vehicle employed autonomo...
August 2009 Geology and GSA Today media highlights
...r-thick cover of sedimentary rocks buries the crater, the outline of the crater is still visible at the surface by a semicircular ring of water-filled sinkhole
lakes, known by the Maya as cenotes. Older geologic maps showed no surface expression of the buried crater. Gilli et al. present new strontium isotope...
Great Lake's sinkholes host exotic ecosystems
...y, in Muskegon, Mich., one of the leaders of a scientific team studying the sinkhole
ecosystems. Those ecosystems are in a class not only with Antarctic lakes, ...ke's surface to dark, anoxic, salty soup down inside the sinkholes.
researchfunded by the National Science Foundation and NOAA's Office of Ocea...
Little Salt Spring underwater archeological site in Florida receives new funding
...c Florida and bring the site's treasures to Florida's Southwest community."
The spring located about ten miles from the Gulf of Mexico consists of a sinkhole
fed by an aquifer that is thousands of feet deep. All the dissolved oxygen in the Spring's water is absorbed before it enters the bottom of the sinkho...
World fertilizer prices drop dramatically after soaring to all-time highs
"But potash prices have stayed high due to its shortage and difficulties in transporting Russian potash because of an enormous and expanding sinkhole
near the Silvinit mines," Gregory says. "Demand for potash increased from 2006 through 2008, and potash inventories are now 37% lower than over the pa...
USGS science picks -- leads, feeds and story seeds
...t. As the rock dissolves, underground voids and caverns develop. The recent sinkhole
and catastrophic collapse in Texas is an example of an area impacted by sub...ge regions in the Appalachians, the Midwest, Florida and Texas are prone to sinkhole
collapses. For more information about sinkholes, listen to an interview wit...
Fossils excavated from Bahamian blue hole may give clues of early life
The unusual discovery of well-preserved fossils in a water-filled sinkhole
called a blue hole revealed the bones of landlubbing crocodiles and tortois...ahamas because of their unusual location in the deep saltwater layer of the sinkhole
that contains no oxygen, which normally would feed the bacteria and fungi t...