Monthly Archives: February 2018

Ground-running bird model may predict bipedal dinosaur locomotion.

Locomotion of bipedal dinosaurs might be predicted from that of ground-running birds

A new model based on ground-running birds could predict locomotion of bipedal dinosaurs based on their speed and body size, according to a study...
Schematic evolution of retrogressive slope failure due to overpressured gas below the gas haydrate stability zone (GHSZ)

Stable gas hydrates can trigger landslides

Like avalanches onshore, there are different processes that cause submarine landslides. One very widespread assumption is that they are associated with dissociating gas hydrates...
Teide volcano in Tenerife.

New insight into how magma feeds volcanic eruptions

A novel research study by scientists at the University of Liverpool has provided new insights into how molten rock (magma) moves through the Earth's...
Erosional Pleistocene shorelines in Surprise Valley, California, USA.

Extinct lakes of the American desert west

The vestiges of lakes long extinct dot the landscape of the American desert west. These fossilized landforms provide clues of how dynamic climate has...
Cratonic lithosphere with a high-density root undergoes delamination when perturbed by mantle plumes from beneath. The removed cratonic root then thermally grows back, with its rock fabrics preserving recent mantle deformation.

Continental interiors may not be as tectonically stable as geologists think

A University of Illinois-led team has identified unexpected geophysical signals underneath tectonically stable interiors of South America and Africa. The data suggest that geologic...
Rhynia gwynne-vaughanii -- 400 million-year-old fossil plant stem from Aberdeenshire, Scotland.

Plants colonized Earth 100 million years earlier than previously thought

For the first four billion years of Earth's history, our planet's continents would have been devoid of all life except microbes. All of this changed...

Earthquakes follow wastewater disposal patterns in southern Kansas

Wastewater created during oil and gas production and disposed of by deep injection into underlying rock layers is the probable cause for a surge...
This schematic illustration of the 2014 Iquique earthquake off the coast of Chile (magnitude 8.1) shows the locations of foreshocks (blue) and aftershocks (red) relative to the area of large slip on the fault (contour lines).

Analysis of major earthquakes supports stress reduction assumptions

A comprehensive analysis of 101 major earthquakes around the Pacific ring of fire between 1990 and 2016 shows that most of the aftershock activity...
The oceanic slow carbon cycle.

How seafloor weathering drives the slow carbon cycle

A previously unknown connection between geological atmospheric carbon dioxide cycles and the fluctuating capacity of the ocean crust to store carbon dioxide has been...
Aerial view of Villarica volcano.

Scientists eavesdrop on volcanic rumblings to forecast eruptions

A new study has shown that monitoring inaudible low frequencies called infrasound produced by a type of active volcano could improve the forecasting of...
The fossil Waptia from the Burgess Shale, Canada

Soft tissue fossil clues could help search for ancient life on Earth and other...

Fossils that preserve entire organisms (including both hard and soft body parts) are critical to our understanding of evolution and ancient life on Earth....
Footprints of mammoths, dated to 43,000 years ago, are seen in a portion of a trackway that was uncovered by researchers in 2017 in an ancient dry lake bed in Lake County, Oregon.

Ancient trail of Columbian mammoths uncovered in south-central Oregon

A fossilized trackway on public lands in Lake County, Oregon, may reveal clues about the ancient family dynamics of Columbian mammoths. Recently excavated by a...

When it comes to extinction, body size matters

On a certain level, extinction is all about energy. Animals move over their surroundings like pacmen, chomping up resources to fuel their survival. If...
This is seismic reflection data.

Tiny fossils, huge slides: Are diatoms the key to Earth’s biggest slides?

The biggest landslides on Earth aren't on land, but on the seafloor. These mega-slides can move thousands of cubic kilometers of material, and sometimes...

Global warming – we have lessons to learn from the Pliocene epoch

Carbon levels around 3 million years ago were similar to those of today and temperatures were even warmer. If something so significant is mirrored...
More than 100 species of cockroaches were used in the new genomic study.

Cockroach ancient geographic and genomic history traced back to last supercontinent

Cockroaches are so hardy, a popular joke goes, that they've occupied the Earth long before humans first appeared -- and will probably even outlast...
10 crystals with weird properties that look like magic

10 Crystals With Weird Properties That Look Like Magic

Fluorite Forget rubies, garnets and sapphires. Fluorite may be the world's most colourful mineral, because of the enormous range of brilliant and even iridescent colours...
Colored and black points mark the global distribution of mid-ocean ridges, with ages of 66 million years ago created at spreading rates above and below 35 millimeters a year, respectively.

A one-two punch may have helped deck the dinosaurs

The debate goes on: What killed off the dinosaurs? New University of Oregon research has identified gravity-related fluctuations dating to 66 million years ago along...
Underwater terrain revealed by the survey and points surveyed.

Giant lava dome confirmed in Japan’s Kikai Caldera

Since the Kobe Ocean Bottom Exploration Center (KOBEC) was established in 2015, it has carried out three survey voyages to the Kikai Caldera, south...
Earthquake simulation

Hayward fault earthquake simulations increase fidelity of ground motions

In the next 30 years, there is a one-in-three chance that the Hayward fault will rupture with a 6.7 magnitude or higher earthquake, according...

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