- News Home
6 March 2014 1:04 pm ,
Vol. 343 ,
Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
- 6 March 2014 1:04 pm , Vol. 343 , #6175
- About Us
Primeval Land Rises From the Ashes
10 May 2012 2:19 pm
Sandwiched between the coal layers of an open-pit coal mine in the Wuda basin in Inner Mongolia is the imprint of a lush forest from the Early Permian period. The forest, whose imprint spans an estimated 20 square kilometers, was preserved when a volcano erupted roughly 298 million years ago. Ash hardened into a 66-centimeter-thick band of chalklike tuff that entombed trunks, branches, and even whole trees. Around the world, just a few ancient forests are known to have been preserved under ash. The Wuda tuff flora—the first discovered in Asia—is remarkably accessible and thick and contains a puzzling group of extinct fernlike plants. Protecting the remaining tuff bed long enough to study it will be no small feat, however. The region's economy depends on coal. Mining has already claimed parts of the fossilized forest, while excavations to extinguish coal-seam fires have destroyed other swaths.