Planet News

New Bird-Like Dinosaur Related to Archaeopteryx

Three Feathered Tyrannosaurs Discovered

Woolly Mammoth DNA Adapted for Ice Age Survival

Rare Find: Three New Dinosaurs From Australia

Flute Belonged to Early Humans

Jurassic Dino Provides Clues to Bird Wing Evolution

Hobbit-Like Human Ancestor Found

Evolution Can Occur in Less Than Ten Years

Gigantic Trilobite Fossils Found in Portugal

Woolly Mammoth DNA Sequenced








PLANET NEWS

Volcanic Magma One Source of Earthquakes

Bookmark and Share

In addition to hot ash, lava, and lightning, volcanoes typically produce earthquakes as magma surges through the mountain on its way to eruption. In fact, volcanic eruptions are so often preceded by flurries of small earthquakes (call "swarms") that scientists use earthquake activity at volcanoes to predict the immanency of eruptions.

Now, researchers in Germany and the UK have found evidence that the source of these earthquakes comes not only from the hot magma pressing against the cool, solid rock of the volcano, but also from fractures in the magma itself. As magma temperatures change the molten material cracks and faults causing detectable seismic activity.

By studying and monitoring this phenomenon more carefully in the future, the researchers believe it will be possible to better predict volcanic eruptions.

Source: Nature.com

Related Links:
http://www.nature.com/nature

Bookmark and Share

Planet Store
Massive 6 Inch Megalodon (Carcharodon megalodon) tooth, Black
Massive 6 Inch Megalodon (Carcharodon megalodon) tooth, Black   
Poop for Christmas, 1 Piece of Dinosaur Coprolite
Poop for Christmas, 1 Piece of Dinosaur Coprolite   
Dinosaur Coprolite (Dung) (Tumbled) (1 pound bulk)
Dinosaur Coprolite (Dung) (Tumbled) (1 pound bulk)   
Spinosaurus, model with moving jaws
Spinosaurus, model with moving jaws   
Planet Store

Geologic History of West Virginia
Free Book Download on the West Virginia Fossil Club website:
Geologic History of West Virginia by Dudley H. Cardwell (1977)
>> Download the Book