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18 April 2019
The Moon’s crust is really cracked
The bombardment of asteroids and meteoroids that pockmarked the Moon’s surface over the eons also created fractures reaching deep into the lunar crust, report researchers in a new study in AGU’s Journal of Geophysical Research: Planets.
16 December 2013
Seismic activity near Samoan Islands hints at crust’s thickness
Seismologists at James Madison University are analyzing 20 years worth of seismic data to create a map of the Earth’s crust and a possible mantle plume underneath the Samoan Islands.
11 December 2013
Magnetic patterns give away the oldest ocean fragment’s age, origins
Continents have re-shaped and seas have parted, but one fragment of the ocean floor has remained locked in place for more than 200 million years. The Ionian basin – a patch of seafloor under the Mediterranean – is the oldest-known section of the seabed to have remained static, held by irregular-shaped continental joints that prevent its motion. The Ionian Sea carries its years well – scientists have debated its true …
Mythical microbes at the deep Earth interface
In ancient Greek portrayals of Hades, the underworld is a shadowy, unforgiving subterranean expanse, whose five rivers include Phlegethon, a river of fire. At Yanartas in modern-day Turkey, that mythological river of fire flows up into the living world. Methane gas from Earth’s mantle seeps to the surface, fueling flames in the side of Mount Chimera, once believed to be the home of a fire-breathing monster. While scientists are unlikely …
GeoSpace is a blog on Earth and space science, managed by AGU’s Public Information staff. The blog features posts by AGU writers and guest contributors on all sorts of relevant science topics, but with a focus on new research and geo and space sciences-related stories that are currently in the news.