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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...

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...

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...

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

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...

Residual strain despite mega earthquake

On 22 May 1960, an earthquake shook the southern Chilean continental margin on a length of about 1,000 kilometers. Estimates suggest that around 1,600...

What geologists got wrong about the world’s biggest failed rift

Geologists have corrected a mix-up that made an ancient geological structure in the central U.S. seem hundreds of miles shorter than it really is....

Earthquakes in the Himalaya are bigger than in the Alps because...

Earthquakes that happen in densely populated mountainous regions, such as the Himalaya, spell bigger earthquakes because of a fast tectonic-plate collision, according to a...

Geophysicists uncover new evidence for an alternative style of plate tectonics

When renowned University of Toronto (U of T) geophysicist J. Tuzo Wilson cemented concepts in the emerging field of plate tectonics in the 1960s,...

Water cooling for the Earth’s crust

How deep can seawater penetrate through cracks and fissures into the seafloor? By applying a new analysis method, an international team of researchers has...

Colorado River’s connection with the ocean was a punctuated affair

The Colorado River's initial trip to the ocean didn't come easy, but its story has emerged from layers of sediment preserved within tectonically active...

When water met iron deep inside the Earth, did it create...

Reservoirs of oxygen-rich iron between the Earth's core and mantle could have played a major role in Earth's history, including the breakup of supercontinents,...

When continents break it gets warm on Earth

The concentration of carbon dioxide (CO2) in the atmosphere determines whether the Earth is in greenhouse or ice age state. Before humans began to...

How the Pacific seafloor got its 60-degree bend

Hawaii sits at the end of a chain of volcanoes running across the Pacific Ocean floor, but in the middle of this chain lies...

Plume-subduction interaction forms large auriferous provinces

Gold enrichment at the crustal or mantle source has been proposed as a key ingredient in the production of giant gold deposits and districts....

What is Plate Tectonic?

Plate tectonics is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates...

Earth’s tectonic plates are weaker than once thought

No one can travel inside Earth to study what happens there. So scientists must do their best to replicate real-world conditions inside the lab. "We...

Large meteorite impacts drove plate-tectonic processes on the early Earth

An international study led by researchers at Macquarie University has uncovered the ways in which giant meteorite impacts may have helped to kick-start our...

Measuring the strength of olivine, the most abundant mineral in the...

University of Delaware professor Jessica Warren and colleagues from Stanford University, Oxford University and University of Pennsylvania, reported new data that material size-effects matter...

Tectonic plates ‘weaker than previously thought,’ say scientists

Experiments carried out at Oxford University have revealed that tectonic plates are weaker than previously thought. The finding explains an ambiguity in lab work...

Data mining finds more than expected beneath Andean Plateau

Seismologists investigating how Earth forms new continental crust have compiled more than 20 years of seismic data from a wide swath of South America's...

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