Articles tagged with Sinkholes
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A rare underwater fossil bed discovered by collectors in Florida's Big Bend region has preserved a unique window into the past. The site, dating back to the middle Irvingtonian North American land mammal age, offers insights into evolutionary transitions and speciation.
Scientists at Helmholtz Centre for Environmental Research - UFZ have discovered chimney-shaped vents on the Dead Sea floor, emitting shimmering fluid. The chimneys are similar to black smokers but originate from surrounding aquifers, providing a new tool for predicting sinkhole formation.
Researchers have identified locations of ancient Maya sacred groves containing cacao trees, which played a crucial role in rituals and trade routes. The discovery sheds light on the economic, political, and spiritual significance of cacao in Mesoamerican culture.
A new study suggests that a slower spinning Earth may have boosted oxygen production by cyanobacteria, contributing to the planet's two great oxygenation events. This finding is based on research of microbial communities in a submerged Lake Huron sinkhole.
The Dead Sea is shrinking at a rate of about one meter per year, causing land subsidence of 15 centimeters annually. Researchers have linked this trend to hydro-meteorological fluctuations, revealing a direct connection between water table fluctuations, evaporation, and land movement.
Researchers created a new model to better predict karst-aquifer vulnerability in the Grand Canyon, providing more accurate information for land and water managers. The study found similar patterns of contamination risk between two aquifers, with some areas showing high vulnerability to contamination.
Two giant sinkholes near Wink, Texas, are experiencing subsidence and expansion, suggesting an increased risk of collapse. Groundwater levels and dissolving minerals underlie the area's unstable ground, which is linked to changing groundwater levels and successive roof failures in underlying cavities.
The Rosetta spacecraft has captured unprecedented imagery of comet 67P/Churyumov-Gersimenko, revealing large, circular sinkholes formed by surface collapse. The study suggests that these pits are a result of ices beneath the surface sublimating, causing the ceiling to collapse and exposing younger, relatively young ice chunks.
A recent study has found evidence of a massive tsunami that struck the Hawaiian islands around 500 years ago, with waves reaching up to nine meters high. The discovery has prompted officials to revise their tsunami evacuation maps to account for the possibility of an extreme tsunami hitting the county.
A study by University of California, Berkeley scientists analyzed 62 seismic events prior to a Louisiana sinkhole discovery. The analysis suggests that natural gas influx may destabilize pre-existing zones of weakness in the salt dome.
Researchers have discovered unique ecosystems in Great Lake Huron's sinkholes, featuring brilliant purple mats of cyanobacteria and pallid, floating pony-tails of microbial life in dense, salty water. The unusual environments are similar to those found at the bottoms of permanently ice-covered lakes in Antarctica.
A NASA-funded robotic sub, DEPTHX, explored Mexico's El Zacatón sinkhole, revealing new information about the geothermal sinkhole. The vehicle mapped the cenote's interior using sonar technology and collected samples of water and biofilm coating its walls.
The Deep Phreatic Thermal Explorer (DEPTHX) has successfully reached the bottom of Cenote Zacatón, the world's deepest known sinkhole. The robotic sub is designed to survey and explore extreme regions on Earth and potentially in outer space, advancing the search for life beyond our planet.
The Deep Phreatic Thermal Explorer (DEPTHX) mission aims to study the physical dimensions, geothermal vents, and potential life in El Zacatón's depths. Using a 2.5-meter-diameter submarine, the team will collect water samples and core samples from the cenote walls.
Scientists return to Cenote Zacatón to resume tests of the NASA-funded robot DEPTHX, designed to survey and explore for life in one of Earth's most extreme regions. The probe may hold clues to life in outer space and on Earth's ice-bound polar lakes.
Carnegie Mellon University researchers developed the software that guided NASA's DEPTHX craft to safely operate in a complicated, unexplored three-dimensional space. The mission aims to explore the world's deepest sinkhole, La Pilita, and develop technologies for future ocean exploration.
The study identifies two techniques for combating spam: improving Internet routing infrastructure security and developing algorithms to identify botnets. The researchers found that network-level properties, such as route hijacking, can be used to identify spammers and improve spam filtering.
A Ph.D. student at Virginia Tech is using electrical resistivity to measure changes in underground water movement in sinkholes. He measured a rapid change in water movement under a sinkhole during Hurricane Ivan's downpour, finding preferential flow paths and potential contaminants.