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Caldera clays may hold key to lithium independence

Most of the world’s lithium is mined in South America and Australia. New research suggests that the United States may have its own untapped lithium supplies in lake deposits in the calderas left behind by large volcanic eruptions. In the study, published in Nature Communications, researchers detail a new way to detect deposits of the silvery white metal in places such as Crater Lake in southern Oregon.

28 Nov 2017

Ice (Re)Cap: November 2017

From Antarctica to the Arctic; from polar caps, permafrost and glaciers to ocean-rafted sea ice; and from burly bears to cold-loving microbes, fascinating science is found in every nook and crevasse of Earth’s cryosphere, and new findings are announced often. Here are a few of the latest updates.

14 Nov 2017

Geomedia: Books: Vivid anecdotes abound in "Eruption: The untold story of Mount St. Helens"

The 1980 eruption of Mount St. Helens was a pivotal event in the geologic careers of many volcanologists. Maybe it drove them to the geosciences, maybe it opened a door for more monitoring and research jobs in the United States, or maybe it was just an excellent example that the lower 48 states are volcanically active. However, as seminal as the 1980 eruption was, it happened almost 20 years before most of today’s college students were even born. To them, the eruption is another example from history, like Pelée or Vesuvius. They likely don’t have the same visceral reaction to it as those who remember it (even if, like me, you were still in preschool when the eruption occurred.)

26 Oct 2017

New method offers improved monitoring of Kilauea

Kilauea Volcano, on Hawaii’s Big Island, has been erupting continuously since 1983, mostly releasing relatively slow-moving lava flows, although rare violent eruptions have occurred. Both explosive and nonexplosive eruptions pose risks to tourists, roughly 2.6 million of whom visit Kilauea annually, as well as to island residents whose safety and property have at times been put in jeopardy by flowing lava.

04 Oct 2017

Travels in Geology: Cones and craters in Flagstaff, Arizona

Few places in the country exhibit as many types of volcanic features — including jagged lava flows, crumbly cinder cones and the remnants of a towering stratovolcano — in as small an area as northern Arizona’s San Francisco Volcanic Field.
04 Oct 2017

Geologic Column: Volcanoes: Awesome and dangerous

Volcanoes and volcanic eruptions are a marvel of nature, but a beautiful visage can mask significant danger.
03 Jul 2017

Red Planet Roundup: June 2017

With two rovers patrolling the surface of Mars, six spacecraft orbiting above it, and scientists here on Earth studying the Red Planet from afar, new findings are announced often. Here are a few of the latest updates.

08 Jun 2017

Timing of famed "Millennium Eruption" pinpointed

Changbaishan Volcano in northeastern China, on the border with North Korea (where it’s known as Mount Paektu), is steeped in superstition, having produced devastating eruptions several times in recorded history. Legends that a massive eruption in the 10th century led to the downfall of a regional empire have now been refuted, however, thanks to a new analysis of a fossilized tree killed by the eruption that dates the eruption to after the kingdom fell.

25 May 2017

And then there was one: Ceres' disappearing ice volcanoes

Earth has numerous volcanoes, both active and extinct — some of which continue to tower over landscapes long after they finished erupting. On the chilly dwarf planet Ceres, however, scientists have identified just a single volcano — an ice-erupting cryovolcano — raising questions about whether others ever existed there and, if so, what happened to them. In a new study, researchers suggest that Ceres has likely had other volcanoes, but that, over time, their icy slopes have been flattened beyond recognition.

28 Apr 2017

Seafloor volcanism linked to glacial cycles

Eruptions from seafloor volcanoes and cycles of global glaciations may seem unrelated, but new research suggests otherwise, indicating that pulses of volcanism at mid-ocean ridges might have influenced glacial and interglacial periods during the latter half of the Pleistocene.

28 Mar 2017