The camera system used to survey seabeds could be seriously underestimating disturbances to ecosystems, according to new research from Heriot-Watt University.
Plants & Animals
Apr 23, 2021
0
59
In the rugged province of Xieng Khoaung in upper northern Laos are scattered more than 2,000 large carved stone jars. They vary in size, with the biggest standing at just over 2.5 meters tall and weighing in at 30 tons. The ...
Archaeology
Apr 16, 2021
3
713
The field of ancient DNA has revealed important aspects of human evolutionary past, including relationships with Denisovans and Neandertals. These studies have relied on DNA from bones and teeth, which store DNA and protect ...
Archaeology
Apr 15, 2021
0
2098
A new scientific discovery in Australia by Flinders University has recorded for the first time how ghost currents and sediments can 'undo' the force of gravity.
Earth Sciences
Apr 14, 2021
0
7
If you were to visit the Great Basin and Colorado Plateau a thousand years ago, you'd find conditions remarkably familiar to the present. The climate was warm, but drier than today. There were large populations of Indigenous ...
Earth Sciences
Apr 14, 2021
1
281
Found in jewelry, car parts, pigments, and industrial chemical reactions, the metal chromium and its compounds are often employed for their color, finish, and anti-corrosive and catalytic properties. Currently, geoscientists ...
Earth Sciences
Apr 06, 2021
0
704
A new analysis of strontium isotopes in marine sediments has enabled scientists to reconstruct fluctuations in ocean chemistry related to changing climate conditions over the past 35 million years.
Earth Sciences
Mar 25, 2021
1
218
Beneath the cold, dark depths of the Arctic ocean sit vast reserves of methane. These stores rest in a delicate balance, stable as a solid called methane hydrates, at very specific pressures and temperatures. If that balance ...
Earth Sciences
Mar 22, 2021
23
1786
Eroded seabed rocks are providing an essential source of nutrition for drifting marine organisms at the base of the food chain, according to new research.
Earth Sciences
Mar 22, 2021
0
108
The accidental discovery of fossilized three-spine stickleback bones dating back 12 thousand years, has enabled scientist to confirm parallel evolution, or evolutionary changes or adaptions which take place repeatedly.
Molecular & Computational biology
Mar 19, 2021
0
171
Sediment is any particulate matter that can be transported by fluid flow, and which eventually is deposited.
Sediments are most often transported by water (fluvial processes) transported by wind (aeolian processes) and glaciers. Beach sands and river channel deposits are examples of fluvial transport and deposition, though sediment also often settles out of slow-moving or standing water in lakes and oceans. Desert sand dunes and loess are examples of aeolian transport and deposition. Glacial moraine deposits and till are ice transported sediments.
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