Search results for Geology Lithosphere

Astronomy Jan 28, 2021

Thick lithosphere casts doubt on plate tectonics in Venus's geologically recent past

At some point between 300 million and 1 billion years ago, a large cosmic object smashed into the planet Venus, leaving a crater more than 170 miles in diameter. A team of Brown University researchers has used that ancient ...

Earth Sciences Jan 27, 2021

Geological phenomenon widening the Atlantic Ocean

An upsurge of matter from deep beneath the Earth's crust could be pushing the continents of North and South America further apart from Europe and Africa, new research has found.

Earth Sciences Jan 14, 2021

Geologic history written in garnet sand

On a beach on a remote island in eastern Papua New Guinea, a country located in the southwestern Pacific to the north of Australia, garnet sand reveals an important geologic discovery. Similar to messages in bottles that ...

Earth Sciences Jan 06, 2021

The revelation of the crustal geometry of the western Qilian Mountains, NE Tibetan Plateau

As the largest orogenic plateau on Earth, the Qinghai-Tibet Plateau was caused by a complex crustal deformation process during the continuous collision and compression process between the Indian and Eurasian continents starting ...

Biochemistry Dec 14, 2020

Scientists discover compounds that could have helped to start life on Earth

Phosphorus is an element essential for life. It is fundamental to all living organisms, and is a key component of RNA, DNA, and cell membranes. Phosphorus compounds must have been involved in the emergence of primordial life. ...

Earth Sciences Dec 02, 2020

Continents prone to destruction in their infancy, study finds

Monash University geologists have shed new light on the early history of the Earth through their discovery that continents were weak and prone to destruction in their infancy.

Earth Sciences Nov 27, 2020

A dessert-like desert: Californian lithosphere resembles crème brûlée

Decades after two large earthquakes rocked the Mojave Desert in California, the discovery of new post-earthquake displacement features has prompted KAUST researchers to update the existing model for this earthquake-prone ...

Earth Sciences Nov 09, 2020

Distinct slab interfaces found within mantle transition zone

The oceanic lithosphere descends into Earth's mantle as subducting slabs. Boundaries between the subducting slab and the surrounding mantle are defined as slab interfaces, whose seismic imaging is the key to understanding ...

Earth Sciences Oct 20, 2020

Geologists 'resurrect' missing tectonic plate

The existence of a tectonic plate called Resurrection has long been a topic of debate among geologists, with some arguing it was never real. Others say it subducted—moved sideways and downward—into the earth's mantle ...

Earth Sciences Oct 19, 2020

Glimpse deep into Earth's crust finds heat source that may stabilize continents

Rocks from the Rio Grande continental rift have provided a rare snapshot of active geology deep inside Earth's crust, revealing new evidence for how continents remain stable over billions of years, according to a team of ...

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