Now, an international team has discovered an entire ecosystem preserved in sedimentary stone from the Early Pennsylvanian (a period from around 320 to 318 million years ago), containing more than ...

More than 1,000 tons of the sedimentary rock (oolite limestone ... For decades, the park featured a perfectly balanced stone gate that, despite its weight, would easily swing open with a strong ...

They are often composed of soft sedimentary stone capped off with harder, less-eroded rock. But the rocks at Yehliu are a different from most. Not only are they some of the only hoodoos known to ...

Results from this initial study published in 2000 revealed a long sedimentary sequence, containing stone tools in an area of present-day rainforest. This site is one of the few in Africa to ...

The age and chemistry of minerals from the Altar Stone provide a ‘fingerprint’ that traces its origin to sedimentary rocks in Scotland’s Orcadian Basin. Sandstones contain detrital grains ...

WASHINGTON (AP) — Ancient stone tools found in western Ukraine ... Archaeologists used new methods to date the layers of sedimentary rock surrounding the tools to more than 1 million years ...

Matching characteristics tell us we have found the source of the grains in the Altar Stone: sedimentary rocks within the Orcadian Basin of northeast Scotland provided the closest match.

Results from this initial study published in 2000 revealed a long sedimentary sequence, containing stone tools in an area of present-day rainforest. This site is one of the few in Africa to ...