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Peridot

Peridot : What is Peridot? Where is Peridot found?

An artistic cross-section through forming crust approximately 3-4 billion years ago. The presence or absence of plate tectonics during this time is a topic of vigorous scientific debate. A study led by Harvard geologists has found evidence that the crust moved quickly over Earth's surface in the deep past, a hallmark of modern plate tectonics. This suggests that plate motion could have been a meaningful process in early Earth history. Credit: Alec Brenner, Harvard University

Tectonic plates started shifting earlier than previously thought

Predators abound on land, in the air and in water some 95 million years on the shores of northern Africa -- as shown by the abundant fossils in the Kem Kem region. Large herbivores, such as the long-necked sauropod Rebbachisaurus, could have been hunted or scavenged by several large predators. Credit: Artwork by Davide Bonadonna

Jurassic Park in eastern Morocco: Paleontology of the Kem Kem Group

Hypothetical outlines of †Ptychodus showing the minimum and maximum size estimations for the sub-adult specimen from Spain.

Giant teenage shark from the dinosaur era

Credit: Geological Society

New tsunami risk identified in Indonesia

Lava streaming from an active vent during the 2018 eruption of Kīlauea Volcano

Excessive rain triggered 2018 Kīlauea volcano eruption, study finds

About 75 million years ago, southern Alberta was a lush and warm coastal floodplain rich in plant and animal life, similar to Louisiana’s environment today. Credit: Luke Dickey // Special to Western News

Researchers offer glimpse into dinosaur ecosystems

This model shows how iron- and magnesium-rich magma (green) is formed at great depth and can move along the outer edges of the large Altiplano-Puna magma body (APMB)(red) to gradually force its way up to the surface during a volcanic eruption. Eruptions with such lava are uncommon and provide a unique insight into the processes that take place deep inside the Earth under the Andes. Credit: Osvaldo Gonzalez Maurel

New study takes the pulse of a sleeping supervolcano

Fault

New study finds connection between fault roughness and the magnitude of...

Planet Earth. and You!

Planet Earth. and You!

The Science of the Solar System

The Science of the Solar System

The Dynamic Earth: A Course for Educators

The Dynamic Earth: A Course for Educators

Big History - From the Big Bang until Today

Big History – From the Big Bang until Today

Mountains 101

Mountains 101

Manchestercarpa vancouverensis. Credit: Brian Atkinson

Mahogany tree family dates back to last hurrah of the dinosaurs

Earth, core, mantle

Heavy iron isotopes leaking from Earth’s core

Geysers in Yellowstone National Park attest to the presence of a supervolcano, which is currently dormant. An eruption of this explosive volcano would impact the entire planet. Credit: © P.H. Barry

A new tool to predict volcanic eruptions

The inner core is likely composed of the hexagonal close packed phase of iron and located at the center of the Earth at pressures between 329 and 364 GPa and temperatures of ~5000 to ~6000 K. Credit: Ehime University

Is the Earth’s inner core oscillating and translating anomalously?

The early Earth was hotter than it is today and this affected the strength of the crust and mantle.

International study sheds new light on the transformation of the Earth’s...

Reconstruction of the giant pterosaur Hatzegopteryx launching into the air, just after the forelimbs have left the ground. Credit: Mark Witton

Pterosaurs and other fossil flyers to better engineer human-made flight

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