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News
Caps, trash, and other hydrothermal funky finds: 2026 edition
2+ hour, 51+ min ago (320+ words) Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Margery Price, Physical Science Technician with the Yellowstone National Park Geology Program. Hats: With more than 280 hats collected…...
Garnet had never been confirmed in a Martian meteorite until researchers examining NWA 8171 at the Royal Ontario Museum found andradite inside a fragment smaller than one millimetre. Some surrounding minerals carry Martian chemistry, but scientists cannot yet tell whether it records an unknown magma, ancient fluid alteration, metamorphism—or debris from an asteroid that struck Mars.
2+ hour, 59+ min ago (766+ words) Andradite in the NWA 8171 Martian breccia is secure, but its tiny host clast could record Martian magma, alteration, metamorphism or material delivered by an impactor. By Deep Field · Edited by Lachlan Brown Published September 14, 2026 · How we edit A rounded grain…...
Gondwana Was Bigger Than We Thought: Hidden Continents Reveal...
4+ hour, 4+ min ago (838+ words) Gondwana was far larger than scientists once believed, and a new study suggests the ancient supercontinent may have played an important role in creating the conditions that helped life rapidly expand on Earth. Published September 9, 2026, in Science Advances, the study…...
Earthquake measuring 2.2 struck area close to Redwood Valley, CA on Sept. 13
6+ hour, 27+ min ago (98+ words) MENDOCINO COUNTY, CA - A preliminary 2.2 magnitude quake occurred near Redwood Valley on Sunday afternoon, according to the U.S. Geological Survey. At 5:37 p.m., a tremor shook the region at a depth of 3 miles, with its epicenter about 5 miles north of Redwood Valley. If…...
UI researcher uses NASA rover to find rare mineral on Mars
4+ hour, 49+ min ago (533+ words) A University of Iowa geology professor working with NASA helped discover a rare mineral on the Jezero crater on Mars. Valerie Payré, an Assistant Professor in the School of Earth, Environment, and Sustainability, has been working on the Mars 2020 rover…...
Update: 2.2 magnitude earthquake shakes near Avalon, CA on Sept. 13
8+ hour, 15+ min ago (113+ words) A preliminary 2.2 magnitude quake occurred near Avalon on Sunday afternoon, according to the U.S. Geological Survey. The tremor struck at 3:56 p.m. (2:56 p.m. local time), with its epicenter approximately 17 miles east-southeast of Avalon and a depth of 3 miles. If you felt the earthquake, you…...
Update: 2.5 magnitude earthquake shakes near Woodside, CA on Sept. 13
6+ hour, 27+ min ago (115+ words) SAN MATEO COUNTY, CA - A preliminary 2.5 magnitude quake occurred close to Woodside on Sunday afternoon, according to the U.S. Geological Survey. The tremor rattled the area at 5:44 p.m. It occurred at a depth of 3 miles with the epicenter about 1 mile east of…...
Earthquake measuring 2.1 struck area near South Dos Palos, CA on Sept. 13
8+ hour, 9+ min ago (239+ words) Modesto Bee FRESNO COUNTY, CA - A preliminary 2.1 magnitude quake shook near South Dos Palos on Sunday afternoon, according to the U.S. Geological Survey. The tremor, which struck the region at 4:06 p.m., was centered about 20 miles southwest of South Dos Palos. It occurred…...
Seismic activity on Sept. 13: Earthquake close to Silver Springs, NV detected - magnitude 2.6
17+ hour, 43+ min ago (261+ words) Sacramento Bee LYON COUNTY, NV - A preliminary 2.6 magnitude quake shook close to Silver Springs on Sunday morning, the U.S. Geological Survey reported. The tremor rattled the area at 6:33 a.m. It occurred at a depth of 7 miles with the epicenter about 11 miles southeast…...
Sept. 13: Earthquake of 2.1 magnitude registered close to Silver Springs, NV
8+ hour, 53+ min ago (101+ words) LYON COUNTY, NV - A preliminary 2.1 magnitude quake occurred near Silver Springs on Sunday afternoon, according to the U.S. Geological Survey. The USGS reported a tremor in the region at 3:12 p.m. The epicenter was roughly 11 miles southeast of Silver Springs, at a depth…...