Using seismic activity to probe the interior of Mars, geophysicists have found evidence for a large underground reservoir of liquid water—enough to fill oceans on the planet's surface.
Astrobiology
Aug 12, 2024
2
396
The oceans are the final destination of weathering products from the land and its transport via rivers, with those in the Himalayan mountains alone moving one billion tons of sediment each year. To understand the storage ...
East Africa is much drier than other tropical land regions, including the Amazon and Congo rainforests. The geography of East Africa was always thought to make the region dry and susceptible to drought, but the precise mechanism ...
Earth Sciences
Mar 2, 2023
0
105
As tectonic plates slip past each other, the rivers that cross fault lines change shape. The shifting ground stretches the river channels until the water breaks its course and flows onto new paths.
Earth Sciences
Jul 8, 2021
0
172
New research from Dartmouth College provides the first evidence that the Arctic's frozen soil is the dominant force shaping Earth's northernmost rivers. Permafrost, the thick layer of soil that stays frozen for two or more ...
Earth Sciences
Feb 1, 2024
1
166
Research co-led by Simon Fraser University and the University of British Columbia shows that amplified global warming in the Canadian High Arctic drove a profound shift in the structure of a river network carved into a permafrost ...
Earth Sciences
Sep 12, 2023
0
12
Geologists have long thought that meandering rivers, with their gently swooping banks, are a geologically recent feature. According to the rock record, these rivers began proliferating around 450 million years ago in the ...
Earth Sciences
Aug 1, 2023
1
60
New Zealand's 2016 Kaikōura earthquake stopped the Waiau Toa—also known as the Clarence River—in its course. Within hours, the river flooded outside its channel and changed course. In the seven years since the magnitude ...
Earth Sciences
May 30, 2023
0
41
Thousands of years ago during the last Ice Age, rivers flowed from giant glaciers in the Sierra Nevada down to the Central Valley, carving into rock and gouging channels at a time when the sea level was about 400 feet lower. ...
Earth Sciences
Nov 18, 2022
0
338
How do coastal channels form and what are their stable configurations? These are the questions a team of researchers, including a University of Arkansas assistant professor of geosciences, John Shaw, set out to answer in ...
Earth Sciences
Jun 8, 2022
0
103
