January 12, 2018
Red Planet Roundup: February 2018
With two rovers patrolling the surface of Mars, six spacecraft orbiting above it, and scientists here on Earth studying the Red Planet from afar, …
The EARTH archive
Salt
Explore the archive by subject.
8 articles · Page 1 of 1
September 14, 2017
How the Arctic became salty
The Arctic Ocean hasn’t always been as salty as other oceans. In the Eocene, between 56 million and 34 million years ago, the water surrounding …
August 16, 2017
Travels in Geology: Sky-high adventure on Bolivia's Altiplano
Nestled between two ranges of the rugged Andes Mountains, the Altiplano is a vast, windswept plateau that stretches more than 900 kilometers from …
July 18, 2017
Travels in Geology: Austria's Salzkammergut: World heritage preserved in salt
In Austria’s famous salt district, the Salzkammergut, the long arc of European history, so palpable to North American visitors wherever they …
June 15, 2017
Whirling "gravel devils" show wind can carry more than just sand
Sand grains, by definition, are between 0.06 and 2 millimeters in diameter, and they are often thought of by scientists as the largest sediments …
January 17, 2017
Road salt may be a larger problem for lakes than thought
The U.S. Geological Survey reported that approximately 30 million tons of road salt were applied to U.S. roads during 2015 to speed up the …
September 2, 2014
Shallow crust magma with a dash of salt and peperite
Magma and salt are not often paired on the menu of geology. But, occasionally, the two do mix — with surprising results. Researchers explored …
January 5, 2012
Bacteria back from the brink
Thousand- and million-year-old microbes found living in salt crystals: Could they also exist on other planets? In 1993, “Jurassic Park” thrilled …