Criterion (viii): The geological conformation of Tassili n'Ajjer includes Precambrian crystalline elements and sedimentary sandstone successions of great paleo-geographical and paleo-ecological ...

Red Rock Canyon is characterized by a series of canyons and parallel, sandstone ridges, (called “hogbacks”), sculpted by erosion because of the area’s uplifted strata.

Geologists confirm that industrial waste turns into rock in just 35 years, challenging traditional ideas about geological ...

Al Naslaa is a rock formation in Saudi Arabia's northwestern desert consisting of two huge, symmetrical stone blocks that are separated by a mysterious gap and sit on small pedestals.

The frontispiece plate is a photograph (salted paper print) of a rock slab with dinosaur tracks found at Greenfield, Mass., Warren's Remarks on some fossil impressions (1854) has been described in ...

Browse 3,200+ sedimentary rock stone stock illustrations and vector graphics available royalty-free, or start a new search to explore more great stock images and vector art.

Fine-grained sedimentary rocks, commonly referred to as "shale" or "mudstone", constitute approximately two thirds of the sedimentary column on Earth, and are nonetheless the least understood ...

The intermittence of solar energy resource in concentrated solar power (CSP) generation and solar drying applications can be mitigated by employing thermal energy storage materials. Natural rocks are ...

These magnificent stone spires aren’t just rocks; they’re time travelers that have been standing sentinel for millions of years. Photo credit: Hans The most striking features are the sedimentary pipes ...