7,844 results
7,844 results for: Geology
- Earth
Seismologists rumble over quake clusters
Japan tremor may be part of a second grouping of great quakes since 1900, some scientists say.
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Over the Coasts: An Aerial View of Geology by Michael Collier
Review by Sid Perkins.
- Paleontology
Early meat-eating dinosaur unearthed
Pint-sized, two-legged runner from Argentina dates back to the dawn of the dinos, 230 million years ago.
- Earth
Geomagnetic field flip-flops in a flash
Rocks in Nevada preserve evidence of superfast changes in Earth’s magnetic polarity.
- Space
Mars shows signs of recent activity
The surface of Mars had abundant liquid water as well as volcanic activity during the past 100 million years, a new study of the Martian atmosphere suggests.
- Space
Moon shrinks
New pictures expand evidence of the moon’s shrinkage over the past billion years.
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Fire & Ice
Volcanoes and frozen lands make an explosive combo.
- Earth
Even a newborn canyon is big in Texas
A flood carved a surprisingly large gorge that may help understand features on Earth and Mars.
- Earth
Tsunami triggered by one-two punch
Geologists report the first recorded observation of an unusual earthquake sequence.
- Earth
Perforated blobs may be early sponges
Odd shapes in Australian rocks could be the oldest fossil evidence of multicellular animals.
- Earth
Shuttle images reveal Egypt’s lost great lake
Radar studies of desert drainage patterns point to ancient oases in the Sahara.
- Paleontology
Apes and Old World monkeys may have split later than thought
A 29- to 28-million-year-old primate fossil found in Saudi Arabia assists scientists in timing a major evolutionary transition.
