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The Alum Shale, here an example of a coastal deposit, consists of quartz and potassium Feldspar clasts as well as conspicuous Pyrite crystals (here: white) embedded in a clayey matrix. Scanning electron micrograph (scale: lower image edge length corresponds to approx. 40 μm). Credit: Schulz, GFZ

A rock with many perspectives

Geology Page - July 24, 2021

This study site was used by researchers to examine a portion of the Oman–United Arab Emirates ophiolite’s metamorphic sole. Credit: Tyler Ambrose

A closer look at the creation of a metamorphic sole

The team's experiments compared carbon's compatibility with the silicates that comprise the Earth's mantle (outer circle) to its compatibility with the iron that comprises the planet's core (inner circle) while under conditions mimicking the Earth's interior during its formative period. They found that more carbon would have stayed in the mantle than previously thought. Credit: Rebecca Fischer, Elizabeth Cottrell and Marion Le Voyer, Kanani Lee, and the late Erik Hauri.

Most of Earth’s carbon was hidden in the core during its formative years

Photomicrographs showing anorthosites with 'correct' and 'wrong' proportions of chromite from the Bushveld Complex, South Africa. Credit: Wits University

Researchers unravel the mystery of non-cotectic magmatic rocks

Left: This is a digitalized 3D natural rock, Center: Spheres cloud representing pore topological features, Right: Persistence diagram.

Novel method for investigating pore geometry in rocks

Researcher unearths hottest rock on record

Geology Page - September 29, 2017

For under-Earth exploration, engineers deepen understanding of rock stress

Geology Page - August 3, 2017

Hundred-year-old law on fluid flow overturned by new research

Geology Page - July 17, 2017

How X-rays helped to solve mystery of floating rocks

Geology Page - May 23, 2017

Rock samples indicate water is key ingredient for crust formation

Geology Page - May 1, 2017

Earth Sciences student research on metamorphic rock in North China

Geology Page - October 4, 2016

Between a rock and a hard place: Biologists unearth sandstone-excavating bees

Geology Page - September 15, 2016

Amazing Agate Photos

Geology Page - September 10, 2016

Mars Rover Views Spectacular Layered Rock Formations

Geology Page - September 10, 2016

Scientists study how to print rocks in 3-D

Geology Page - August 10, 2016

Oldest rocks in Australia unlock secrets of the atmosphere

Geology Page - June 27, 2016

Turning CO2 into rock

Geology Page - June 10, 2016

Studying life on the rocks

Geology Page - June 1, 2016

Methane-producing microbes in California rocks

Geology Page - May 25, 2016

$Barium leaches directly from fracked rocks$

Barium leaches directly from fracked rocks

Geology Page - May 25, 2016

Is old rock really as “solid as a rock”

Geology Page - September 8, 2015

Research redefines the properties of faults when rock melts

Geology Page - July 1, 2015

Discovery of new rock property

Geology Page - June 10, 2015

Ancient rocks show life could have flourished on Earth 3.2 billion...

Geology Page - February 17, 2015

How ionic: Scaffolding is in charge of calcium carbonate crystals

Geology Page - January 27, 2015

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Moon is proto-Earth’s mantle, relocated

September 12, 2016

The iron cycle in the ocean

Tracing iron in the North Pacific

December 6, 2018

Can satellites be used as an early warning system for landslides?

July 3, 2017

Best Astronomy Photos of 2016

September 17, 2016

MORE ARTICLES

Photographs of alkaline magmatic intrusions in Greenland. The region was volcanically and tectonically active around 1.2 billion years ago. Although no longer active, it is of major interest to geologists because the subsequent uplift and glacial erosion have cut deep into the rift and exposed the magma chambers that once lay well below the surface. Greenland’s magmas were sourced from a mantle that was enriched and contaminated by ancient crustal materials. Credit: University of St Andrews

Ancient volcanoes reveal Earth’s recycled crust

Maohokite

Mineral Researches

Scientists discover possible mantle mineral

Scientists discover remains of a previously unknown mammal

Early Earth had a hazy, methane-filled atmosphere