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Latest Earth science Stories

Ancient Rocks Provide Clues About Earth's Earliest Crust
2014-05-30 03:14:31

By Bryan Alary, University of Alberta PhD student's studies of four-billion-year-old rocks show ancient crust generated in an Iceland-like setting. It looks like just another rock, but what Jesse Reimink holds in his hands is a four-billion-year-old chunk of an ancient protocontinent that holds clues about how the Earth’s first continents formed. The University of Alberta geochemistry student spent the better part of three years collecting and studying ancient rock samples from...

Australian Rock Determined To Be Oldest Material Formed On Earth
2014-02-24 13:04:03

[ Watch the Video: The Oldest Rock On Earth ] Lee Rannals for redOrbit.com - Your Universe Online Researchers, publishing a paper in the journal Nature Geoscience, say a rock in Australia is helping to paint a picture of how our planet became habitable 4.4 billion years ago. The team found data from a tiny fragment of zircon that confirms the Earth’s crust first formed 4.4 billion years ago, which is just 160 million years after the formation of the Solar System. John Valley,...

2014-02-13 23:25:31

The Life, Earth & Health Sciences Magazine EurekaMag.com has published 5,685 new articles on tectonic evolution. As a comprehensive publisher of geographic and geological articles, EurekaMag.com coverage includes studies on the gradual development of the structure of the earth's crust and the large-scale processes that take place within it. Mannheim, Germany (PRWEB) February 13, 2014 EurekaMag.com has newly published 5,685 new articles on tectonic evolution. While the site's...

Molten Rock Support Atlas Mountains In Morocco
2014-01-03 04:28:44

April Flowers for redOrbit.com - Your Universe Online The standard model for mountain structure, in which high topography must have deep roots for support, is defied by the Atlas Mountains, according to a new study from the Earth Sciences department at the University of Southern California (USC). The team of scientists created a new model which reveals that the Atlas Mountains are floating on a layer of hot molten rock flowing beneath the lithosphere — the Earth's most rigid outer...

New Evidence Gives New Life To ‘Percolation’ Theory For Earth’s Core
2013-10-08 17:23:32

Lee Rannals for redOrbit.com – Your Universe Online Scientists writing in the journal Nature Geoscience say that a similar process to that which allows water to yank oils from ground coffee  in order to make a cup of joe in the morning, could be how the Earth's core formed. Stanford University scientists recreated the intense pressures and temperatures inside Earth and found that an iron melt network may have helped grow the Earth's core. The finding revisits a theory first proposed...

Scientists Reveal New Insight Into Formation Of Earth’s Continents
2013-09-16 17:42:14

Lee Rannals for redOrbit.com – Your Universe Online Scientists writing in the journal Nature Geoscience say they've unveiled more clues about how continents formed early in the Earth's history. The latest research provides strong evidence against continent formation above a hot mantle plume. Instead, the analysis indicates that the nuclei of Earth's continents formed as a byproduct of the mountain-building processes, by stacking up slabs of relatively cold oceanic crust....

Pamir Tien Shan Earthquakes And Tectonics
2013-08-27 14:07:16

Helmholtz Association Real time observation of shear waves on the Earth's surface, first direct observation of subducting continental crust during the collision of two continents Earthquake damage to buildings is mainly due to the existing shear waves which transfer their energy during an earthquake to the houses. These shear waves are significantly influenced by the underground and the topography of the surrounding area. Detailed knowledge of the landform and the near-surface...

2013-07-29 23:29:52

After its latest inclusion of 220 thousand new geographical references, the Life, Earth and Health Sciences Magazine EurekaMag.com now provides 37.2 million references including 11.6 million summaries in the basic and applied biological, geographical and agricultural sciences. Mannheim, Germany (PRWEB) July 28, 2013 EurekaMag.com has newly published 221,840 references on the basic and applied earth sciences. These references including 132,707 new abstracts are included in the site's...

Upwellings In Earth's Mantle Have Remained Stable Over Geologic Time
2013-06-27 08:33:06

April Flowers for redOrbit.com - Your Universe Online A new study from the University of Hawaii - Manoa's School of Ocean and Earth Science and Technology (SOEST) reveals that the large-scale upwelling within Earth's mantle mostly occur in only two locations: beneath Africa and the Central Pacific. Clinton Conrad, associate professor of geology at SOEST, led the team of researchers who found, despite dramatic reconfigurations of tectonic plate motions and continental locations on the...

New Insights Into The Strength Of Continents
2012-08-21 11:11:47

April Flowers for redOrbit.com - Your Universe Online Over the last 50 million years, the Caribbean islands have been pushed east, driven by the movement of the Earth's viscous mantel against the more rooted South American continent. A new study by University of Southern California (USC) geophysicists, published in Nature Geoscience, gives us a better understanding of how continents resist the constant movement of the Earth's plates and what effect the continental plates have in...


Word of the Day
callithump
  • A somewhat riotous parade, accompanied with the blowing of tin horns, and other discordant noises; also, a burlesque serenade; a charivari.
'Callithump' is a back-formation of 'callithumpian,' a 'fanciful formation' according to the Oxford English Dictionary. However, the English Dialect Dictionary, says 'Gallithumpians' is a Dorset and Devon word from the 1790s that refers to 'a society of radical social reformers' or 'noisy disturbers of elections and meetings.'
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