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A Tiny Grain Helps Reveal the History of a Rock

How X-rays helped to solve mystery of floating rocks

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

An outcrop called ‘the Bubble’ on Eileach an Naoimh (Holy Isle). It shows a huge white rock fragment, tens of metres across, which was originally part of the underlying rock sequence. The layering in the carbonate rock has been squeezed tightly under immense pressure and transported by thick ice sheets to its final resting as one of many different rock fragments within a moraine. Credit: Graham Shields

Scottish and Irish rocks confirmed as rare record of ‘snowball Earth’

How ionic: Scaffolding is in charge of calcium carbonate crystals

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

Geophysicist teams with mathematicians to describe how river rocks round

Oldest rocks in Australia unlock secrets of the atmosphere

Representative image: Hand holding a rock

Prehistoric rock in Japan reveals clues to major ocean anoxic event

Studying life on the rocks

Researcher unearths hottest rock on record

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

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

Scientists study how to print rocks in 3-D

Turning CO2 into rock

Researchers describe unusual Mars rock

Methane-producing microbes in California rocks

Rock art draws scientists to ancient lakes

Mars Rover Views Spectacular Layered Rock Formations

Earth Sciences student research on metamorphic rock in North China

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