NASA’s Mars rover is on the trail of a geological mystery in the Jezero crater. While exploring an area known as Witch Hazel ...

During a field trip to the Lava Creek Tuff near Shell, Wyoming ... Argon 40, a stable isotope of argon, builds up in volcanic ...

Discover Armenia's rich architectural heritage, shaped by volcanic tuff and basalt, showcasing its unique identity through ...

Massive lava fountains were sent soaring as high as 700 feet into the air on the big island of Hawaii as it erupted, producing intense heat, glowing streams of molten rock, and plumes of volcanic ...

Hazy conditions are expected to continue throughout the next several days as Kilauea releases more sulfur dioxide and other volcanic fumes into the air. Light southeasterly winds will also ...

Hand-carved arrowheads and jagged spears made of obsidian, a sharp rock formed by volcanic magma, are remnants of vast prehistoric trade networks that once cut across western North America.

The excavations have uncovered a quadrangular mausoleum clad with opus reticulatum, a type of Roman masonry made with volcanic tuff bricks in a diamond shape, located at the center of one of the ...

Its olive-green sand comes from the erosion of a tuff ring, Puʻu Mahana, formed over 49,000 years ago by a volcanic eruption. To reach this beach, one has to hike a 2.7-mile trail across rugged ...

The researchers discovered that volcanic rock can capture microscopic details of feathers – a phenomenon that has never been documented before. Fossilization usually occurs in sediments like mud or ...

More information: Margherita Mussi, The volcanic rock spheres of Melka Kunture (Upper Awash, Ethiopia) at Gombore IB and later Acheulean sites, Quaternary International (2025). DOI: 10.1016/j.quaint.