Tags Plate tectonics

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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...

Diamonds reveal how continents are stabilized, key to Earth’s habitability

The longevity of Earth's continents in the face of destructive tectonic activity is an essential geologic backdrop for the emergence of life on our...

When India Slammed Into Asia

When the landmass that is now the Indian subcontinent slammed into Asia about 50 million years ago, the collision changed the configuration of the...

What are the different types of plate tectonic boundaries?

What are Plate Boundaries? Plate boundaries are the edges where two plates meet. Most geologic activities, including volcanoes, earthquakes, and mountain building, take place at...

K-T Boundary “Cretaceous-Tertiary Boundary”

What is K-T Boundary? The Cretaceous–Tertiary extinction event, now called the Cretaceous–Palaeogene extinction event. It may be called the K/T extinction event or K/Pg event...

K-Pg Boundary “Cretaceous–Paleogene Boundary”

What is the K-Pg Boundary? The Cretaceous–Paleogene (K–Pg) extinction event, was a sudden mass extinction of some three-quarters of the plant and animal species on...

The solid Earth breathes

The solid Earth breathes as volcanoes "exhale" gases like carbon dioxide (CO2) -- which are essential in regulating global climate -- while carbon ultimately...

New light into the recent evolution of the African rift valley

Continental rift valleys are huge fractures on the surface of our planet that progressively break continental plates with the eventual development of new oceans....

Tectonics in the tropics trigger Earth’s ice ages

Over the last 540 million years, the Earth has weathered three major ice ages -- periods during which global temperatures plummeted, producing extensive ice...

Tibetan plateau rose later than we thought

The Tibetan Plateau today is on average 4,500 meters above sea level. It is the biggest mountain-building zone on Earth. Most analyses to date...

Fate of the subducted oceanic crust revealed by laboratory experiments

Professor Tetsuo Irifune of the Geodynamics Research Center (GRC) of Ehime University heads a research group investigating the Earth's interior by means of experiments...

Earth’s continental nurseries discovered beneath mountains

In his free time last summer, Rice University geoscientist Ming Tang made a habit of comparing the niobium content in various rocks in a...

Scientists reconstruct ancient lost plates under Andes mountains

The Andes Mountains are the longest continuous mountain range in the world, stretching about 7,000 kilometers, or 4,300 miles, along the western coast of...

Climate, life and the movement of continents: New connections

A new study by The University of Texas at Austin has demonstrated a possible link between life on Earth and the movement of continents....

Enhanced views of Earth tectonics

Scientists from Germany's Kiel University and British Antarctic Survey (BAS) have used data from the European Space Agency (ESA), Gravity field and steady-state Ocean...

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