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Mud Volcanoes

The geological record of mud deposits

Life reconstruction of the giant wombat relative Mukupirna nambensis on the shores of Lake Pinpa 25 million years ago. Also shown are stiff-tailed ducks (foreground) and flamingos (background), the remains of which are known from the same fossil deposit. Credit: Painting by Peter Schouten.

Big-boned marsupial unearths evolution of wombat burrowing behavior

Purple Amethyst

Purple Amethyst : What causes the purple color of amethyst?

The Roebling Opal

Roebling Opal : Amazing Rare blue and green Opal Found in...

Seismic recordings with bell ringing signals in four European locations to mark the passage of time: Lunas (France), Riolos (Greece), Sta. Marيa de Montmagastrell (Spain) y Oriolo (Italy). Each plot corresponds to one day. Each trace represents the same minute at every hour on that day. Time scale is in seconds. (Image: Jordi Dيaz, ICTJA-CSIC)

How seismometers record church bells ringing

A lump of coal weathering out from Siberian flood basalts in a quarry near the town of Ust Ilimsk Credit: Scott Simper

Coal-burning in Siberia led to climate change 250 million years ago

Earthquakes send sound waves through the Earth. Seismograms record the echoes as those waves travel along the core-mantle boundary, diffracting and bending around dense rock structures. New research from University of Maryland provides the first broad view of these structures, revealing them to be much more widespread than previously known. Credit: Doyeon Kim/University of Maryland

Scientists detect unexpected widespread structures near Earth’s core

The Andes seen from space. The height of the Andes, like the height of other mountain ranges on Earth, is determined by tectonic forces (Credit: NASA; Astronaut photograph ISS059-E-517).

Which factors control the height of mountains?

New Curtin University research on the remixing of Earth's stratified deep interior suggests that global plate tectonic processes, which played a pivotal role in the existence of life on Earth, started to operate at least 3.2 billion years ago. Credit: Professor Zheng-Xiang Li

Remixed mantle suggests early start of plate tectonics

The Brooks Range stretches across northern Alaska. Boreal forests in North America are among the largest areas experiencing a relatively low human impact. (Jason Riggio/UC Davis)

Half the earth relatively intact from global human influence

If ice once covered the entire planet, how did the transition take place and what does it say about Earth's climate? Credit: NASA Goddard photo

Researchers unlock clues to a dramatic chapter of Earth’s geological history

Study proves that magma chambers are huge masses of crystals with...

Three water-filled maars in the Eifel, Germany (Gemündener Maar, Weinfelder Maar, Schalkenmehrener Maar). Created by volcanic activity, maars are also found in other parts of Europe and on other continents, but Eifel-Maars are the classic example worldwide.

New hints of volcanism under the heart of northern Europe

Graphite & Hexagonal Diamond

Study shows diamonds aren’t forever

Yellowstone National Park is an American national park located in Wyoming, Montana, and Idaho.

Discovery of ancient super-eruptions indicates the Yellowstone hotspot may be waning

Blue Diamond

New model shows how diamond-carrying rocks formed in Northern Alberta

Proposed model for deep-carbon transport along a cratonic boundary in the EARS study region.

Scientists decipher the role of carbon and the break-up of continents

Illustration of Borealopelta markmitchelli dinosaur by Julius Csotonyi. Credit: © Royal Tyrrell Museum of Palaeontology

Scientists discover what an armored dinosaur ate for its last meal

What the ankylosaur Bissektipelta archibaldi might look like. Credit: the authors of the paper.

Palaeontologists create most detailed virtual 3-D-model of endocranial cast and blood...

The fossilized jaw of an Overoraptor chimentoi, a new species of dinosaur discovered in Argentine Patagonia

Argentine paleontologists discover small carnivorous dinosaur

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