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Old Faithful’s geological heart revealed

Geology Page - October 7, 2017

Old Faithful is Yellowstone National Park's most famous landmark. Millions of visitors come to the park every year to see the geyser erupt every...

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Broad surfaces called terraces preserve ancient river floodplains and landscape history up to hundreds of meters above the Fortymile River, a tributary of the Yukon River, in eastern Alaska. Researchers from the USGS, the University of Vermont, Purdue University and Utah State University publish definitive support that increases in sediment deposited to oceans from river erosion coincide with dramatic changes in glacial cycles. Credit: USGS

Geoscientist Aids Study of Climatic Change Impacts on River Erosion

July 25, 2020

Age-old relationship between birds and flowers: World’s oldest fossil of a...

May 29, 2014

Uskiella spargen a small plant whose axes divide several times before bearing oval sporangia. Credit : Cyrille Prestianni

Discovery of the oldest plant fossils on the African continent!

June 26, 2021

Chinese cave ‘graffiti’ tells a 500-year story of climate change and...

August 14, 2015

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New micro-CT scanner allows inside view of even the tiniest fossils

Perisphinctes

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

Illustrated scene of dinosaurs and asteroid.

In death of dinosaurs, it was all about the asteroid –...