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Latest Crust Stories

Meteorite Reveals Martian Secrets
2013-11-21 07:06:46

April Flowers for redOrbit.com - Your Universe Online A new study has uncovered what may be the first recognized example of ancient Martian crust. The findings, published in Nature, are the work of Munir Humayun of Florida State University. His work is based on an analysis of a 4.4 billion-year-old Martian meteorite unearthed by Bedouin tribesmen in the Sahara desert. The rock, designated NWA 7533, might be the first recognized sample of ancient Martian crust and holds a wealth of...

Moon Gets New Face GRAIL
2013-11-11 08:26:13

[ Watch the Video: Man In The Moon Got His Looks From Asteroids ] redOrbit Staff & Wire Reports - Your Universe Online Scientists have long believed that the moon’s trademark craters were created from the impact of massive asteroids, but new research appearing in the journal Science suggests that smaller planetoids might actually have been responsible for pummeling the lunar surface. The lunar craters were believed to have been created approximately four billion years ago,...

Volcanic Rock Research Sheds New Light On Earth’s Formation
2013-11-08 12:29:31

redOrbit Staff & Wire Reports - Your Universe Online By analyzing basalt, a substance formed from cooling lava, a team of European scientists have gained new insight into how the Earth’s core, crust and atmosphere formed, as well as how volcanic activity originated. According to UPI, the researchers recreated the conditions of the Earth approximately 4.5 billion years ago, when much of the world was molten and the crust formed as lava cooled. Their goal was to develop a...

Scientists Document Scavenging For Oxygen In Seawater Circulating Through Deep Oceanic Crust
2013-09-27 11:16:26

Bigelow Laboratory for Ocean Sciences Although long thought to be devoid of life, the bottom of the deep ocean is now known to harbor entire ecosystems teeming with microbes. Scientists have recently documented that oxygen is disappearing from seawater circulating through deep oceanic crust, a significant first step in understanding the way life in the "deep biosphere" beneath the sea floor is able to survive and thrive. The new research findings were published in the journal Nature...

New Evidence Indicates Moon Is 100 Million Years Younger Than Thought
2013-09-24 07:10:10

[ Watch the Video: Moon May Be Much Younger Than Previously Believed ] Lawrence LeBlond for redOrbit.com - Your Universe Online Earth’s closest neighbor, the moon, has been studied intently by astronomers for centuries. In that time, we thought we had discovered nearly everything there is to know about the origins of our natural satellite. However, new research by geochemist Richard Carlson of the Carnegie Institution of Washington has shaken things up a bit. According to Carlson's...

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...

Earth's Origins May Be Explained Through Mantle's 'Hidden Flux'
2013-07-17 14:46:32

Brett Smith for redOrbit.com - Your Universe Online One of the more popular theories surrounding the formation of the planets involves the countless collisions of smaller objects in orbit around the sun 4.5 billion years ago. However, proponents of that theory are missing one thing: the Earth's chemical composition is distinctly different from the meteors that are currently striking the planet. Scientists have found that the lead-uranium ratio of meteors is much different than that of...

2013-06-13 10:52:22

Reassessment of the role of water in plate tectonics Water in the Earth's crust and upper mantle may not play such an important role as a lubricant of plate tectonics as previously assumed. This is a result geoscientists present in the current issue of the scientific journal Nature (13/06/2013) after the examination of water in the mineral olivine. Laboratory experiments over the past three decades have suggested the presence of water greatly weakens the mechanical strength of the...

Oceanic Volcanoes Reveal Signs Of Ancient Earthen Crust
2013-04-25 07:27:13

April Flowers for redOrbit.com - Your Universe Online For a long time now, scientists have been convinced that lava that has erupted from certain oceanic volcanoes contains material from the crust of early Earth, but decisive evidence has been elusive. A new study, published in the journal Nature, reveals that oceanic volcanic rocks contain samples of recycled crust dating back to the Archean era 2.5 billion years ago. Oceanic crust sinks below the Earth's mantle where two tectonic...


Latest Crust Reference Libraries

4_33609f8ebef994f54be143abe0bef9f42
2004-10-19 04:45:40

Earth -- in geology and astronomy, fifth largest planet of the solar system and the only planet definitely known to support life. Gravitational forces have molded the earth, like all celestial bodies, into a spherical shape. However, the earth is not an exact sphere, being slightly flattened at the poles and bulging at the equator. The equatorial diameter is c.7,926 mi (12,760 km) and the polar diameter 7,900 mi (12,720 km); the circumference at the equator is c.24,830 mi (40,000 km)....

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  • Color; hue; complexion.
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