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How archaeologist created a prehistoric GPS for tracking ancient humans

Geology Page - November 20, 2016

Where's the best place to start when retracing the life of a person who lived 4,000 years ago? Turns out, it's simple -- you...

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Novel mechanism to explain high elevation of Denver area

March 7, 2015

The fossilized trees contain information about a drastic climate change 12,000 years before present.

Searching for clues on extreme climate change

September 19, 2018

Lower Cretaceous

April 15, 2014

Debris Flow Dynamics

February 19, 2019

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Ancient toothed turtles survived until 160m years ago

Hyalophane

A schematic diagram of the Earth's deep oxygen factory shows the oxygenation and deoxygenation processes of hydrous mantle materials in the lower mantle across the ~1000 km depth beneath Earth's surface. Under the conditions of Earth's middle mantle, scientists discovered an oxygen-excess phase, (Mg,Fe)2O3+δ (0 < δ < 1) that can be formed with under-saturated water at >1000 kilometers depths. Those oxygen-excess materials may have long-termly oxidized the shallow mantle and the crust, which is essential to allow free oxygen to build up in Earth's atmosphere. Credit: Science China Press

Oxygen-excess oxides in Earth’s mid-mantle facilitate the ascent of deep oxygen

Earth’s major ‘mass extinction’ events