Tags Plate tectonics

Tag: plate tectonics

What makes the Earth’s surface move?

Do tectonic plates move because of motion in the Earth's mantle, or is the mantle driven by the movement of the plates? Or could...

Collision course: A geological mystery in the Himalayas

According to Craig Martin, deciphering Earth's geologic past is like an ant climbing over a car crash. "You've got to work out how the...

Study provides new insight into the origin of Las Cañadas caldera...

Las Cañadas caldera (Tenerife, Canary Islands) is the result of different episodes of caldera collapses, associated to large explosive eruptions that triggered several landslides...

Unusual fault rupture during Kaikōura quake

One of the 24-plus faults that ruptured in the 2016 magnitude 7.8 Kaikōura earthquake has turned out to be even more unusual than scientists...

Why are mountains so high?

Over millions of years, Earth's summits and valleys have moved and shifted, resulting in the dramatic landscapes of peaks and shadows we know today....

Machu Picchu: Ancient Incan sanctuary intentionally built on faults

The ancient Incan sanctuary of Machu Picchu is considered one of humanity's greatest architectural achievements. Built in a remote Andean setting atop a narrow...

Ancient volcanoes reveal Earth’s recycled crust

Ancient volcanoes dating back billions of years could provide new insights into how the Earth's surface is recycled, according to scientists at the University...

What drives plate tectonics?

Plate tectonics was founded in the late 1960s, and it concerns the distribution and movements of plates, the uppermost layer of the Earth. Plate...

Researchers uncover 2.5 billion years of Earth’s continents breaking up and...

A new study of rocks that formed billions of years ago lends fresh insight into how Earth's plate tectonics, or the movement of large...

Scientists discover how and when a subterranean ocean emerged

"The mechanism which caused the crust that had been altered by seawater to sink into the mantle functioned over 3.3 billion years ago. This...

Curved slickenlines preserve the direction of rupture propagation

Slip-parallel grooves (striations) on fault surfaces are considered a robust indicator of fault slip direction, yet their potential for recording aspects of earthquake rupture...

New model suggests lost continents for early Earth

A new radioactivity model of Earth's ancient rocks calls into question current models for the formation of Earth's continental crust, suggesting continents may have...

Earthquake swarms reveal missing piece of tectonic plate-volcano puzzle

Deep under the ocean bed, a sinking tectonic plate causes a "swarm" of earthquakes, feeding molten rock into newly forming volcanoes, new research has...

Plate tectonics may have driven ‘Cambrian Explosion’

The quest to discover what drove one of the most important evolutionary events in the history of life on Earth has taken a new,...

Glacial sediments greased the gears of plate tectonics

Earth's outer layer is composed of giant plates that grind together, sliding past or dipping beneath one another, giving rise to earthquakes and volcanoes....

Contact Metamorphism Vs. Regional Metamorphism

Contact Metamorphism Vs. Regional Metamorphism Metamorphism is the solid change in minerals and textures in a pre-existing rock (country rock) due to changing pressure /...

Contact Metamorphism : What is Contact Metamorphism? How it formed?

Contact Metamorphism Contact metamorphism is a type of metamorphism that occurs adjacent to intrusive igneous rocks due to temperature increases resulting from hot magma intrusion...

Regional Metamorphism : What is regional metamorphism? How it formed?

Regional Metamorphism When rocks are buried deep in the crust, regional metamorphism occurs. This is commonly associated with the boundaries of convergent plate and mountain...

Monitoring Earth’s shifting land

The monitoring of land subsidence is of vital importance for low-lying countries, but also areas which are prone to peculiar ground instability. Land subsidence is...

How life on Earth affected its inner workings

It is well known that life on Earth and the geology of the planet are intertwined, but a new study provides fresh evidence for...

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