Geology

World's largest extrusive body of sand?

Using 3-D seismic and well data from the northern North Sea, Helge Løseth of the Statoil Research Center (Trondheim, Norway) and colleagues describe a large (10 cubic kilometers) body of sand and interpret it as extrusive. ...

Mar 20, 2012 5 / 5 (3) 4

The oldest evidence of bioturbation on Earth

The Ediacaran Period, an interval in Earth's history after the Snowball Earth glaciations but before the Cambrian radiations, marks the introduction of complex macroscopic organisms synchronously in unrelated groups. It has ...

Mar 20, 2012 5 / 5 (2) 1

Dinosaur forests mapped

The first detailed maps of the Earth's forests at the time of the dinosaurs have been drawn up. The patterns of vegetation, together with information about the rate of tree growth, support the idea that the ...

Feb 28, 2012 4.6 / 5 (5) 7 | with audio podcast