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Hace 4 días · Intense seasonal frost action, repeated freezing and thawing throughout the year, produces small-scale patterned ground. Repetitive freezing and thawing tends to stir and sort granular sediments, thus forming circles, stone nets, and polygons a few centimetres to 6 metres (20 feet) in diameter.
Hace 1 día · Los trabajadores enfrentan riesgos para la salud como congelación e hipotermia. En algunos lugares, el permafrost (suelo permanentemente congelado) también representa un desafío importante para la construcción de cimientos, que debe manejarse con cuidado.
Hace 4 días · Learn about researchers studying melting permafrost on mountains in order to predict and protect against avalanches. Permafrost is the result of present climate. Many temperature profiles show, however, that permafrost is not in equilibrium with present climate at the sites of measurement.
Hace 1 día · In a first-of-its-kind discovery, a complete mummified wolf was pulled from the permafrost in Siberia, after being locked away for more than 44,000 years. Scientists have now completed a necropsy ...
Hace 2 días · In this photo you can see a collapsed block of ice-rich permafrost along Drew Point, Alaska. Photo by Benjamin Jones, USGS/Flickr. Recent advancements have finally allowed scientists to begin peering into the complex, diverse world of soil genetics and answer these questions. McGivern and her colleagues started by creating an open-source gene-labeling tool, which can compare genetic sequences ...
Hace 3 días · Evolving Icy Landscapes and Related Hazard Perception. Hazards relating to glaciers and permafrost occur in many mountain regions of the world and are a threat to lives, livelihoods, and sustainable development in some of the world’s most vulnerable mountain regions (Hock et al., 2020).Research on glacier and permafrost hazards has largely originated in Europe and North America because the ...
Hace 1 día · An ancient wolf with its fearsome teeth intact has been uncovered from the permafrost in Siberia after 44,000 years. Experts say the adult male wolf found in Yakutia, eastern Russia, has amazingly preserved fur, bone and even organs, as well as teeth and bone. It’s been transferred to the Mammoth Museum Laboratory of the Northeast Federal ...
