A fossilised 113-million-year-old hell ant from Brazil adds to the evidence that the first ants evolved in the southern ...

Beneath Yellowstone lies a magma reservoir, pulsing with molten and superheated rock and exsolved gases. Scientists have long ...

“When you start naming geologic-time terms, you need to define what exactly the boundary is, where it appears in the rock strata,” says Whitney Autin, a stratigrapher at the SUNY College of ...

Rock strata and fossils from this period are particularly well preserved in south-west Germany. An international research ...

Thus, any deformations of strata (Figures 2 and 3) must have occurred after the rock was deposited. The principle of superposition builds on the principle of original horizontality. The principle ...

It is believed that a 480 by 240 kilometer section of the underground mantle formed large-scale rock strata for a depth of 8 kilometers two billion years ago. Layers of solid bedrock at the ...