All Articles Tagged As: chondrites
Geological history has periodically featured giant lava eruptions that coat large swaths of land or ocean floor with basaltic lava, which hardens into rock formations called flood basalt. New research proposes that the remnants of six of the largest volcanic events of the past 250 million years contain traces of the ancient Earth's primitive mantle -- which existed before the largely differentiated mantle of today -- offering clues to the geochemical history of the planet. Their work is published online July 27 by Nature.
...> Full Article
Scientists have discovered a new window into the Earth's violent past. Geochemical evidence from volcanic rocks collected on Baffin Island in the Canadian Arctic suggests that beneath it lies a region of the Earth's mantle that has largely escaped the billions of years of melting and geological churning that has affected the rest of the planet. Researchers believe the discovery offers clues to the early chemical evolution of the Earth.
...> Full Article
Discoveries consistent with theory of Clovis-age disruption by cosmic event, says 9-member team
...> Full Article
| 
Subscribe
New species of ancient crocodile discovered
Kitchen gadget inspires scientist to make more effective plastic electronics
Making memories last
Ferroelectric switching discovered for first time in soft biological tissue
Forensic research extends detection of cyanide poisoning
The wild early lives of today's most massive galaxies
Shakespeare's skill 'more in grammar than in words'
Detailed picture of how myoV 'walks' along actin tracks
Need muscle for a tough spot? Turn to fat stem cells
Earth's energy budget remained out of balance despite unusually low solar activity
Pictures of food create feelings of hunger
Mighty mesh
Sweeten up your profits with the right hybrid
Patterns of antibiotic-resistant bacteria found in Galapagos reptiles
How seawater could corrode nuclear fuel
Bilayer graphene works as an insulator
Patterns of chromosome abnormality: The key to cancer?
Advantages of living in the dark: The multiple evolution events of 'blind' cavefish
Snakes improve search-and-rescue robots
Enhancing cognition in older adults also changes personality
Magnetic actuation enables nanoscale thermal analysis
A new artificial intelligence technique to speed the planning of tasks when resources are limited
'Tiger mothers' should tame parenting approach
Film coatings made from whey
Growing US violent extremism by the numbers
If a fat tax is coming, here's how to make it efficient, effective
Bobsled runs -- fast and yet safe
Fruit fly intestine may hold secret to the fountain of youth
New study may answer questions about enigmatic Little Ice Age
What really happened prior to 'Snowball Earth'?
Injecting sulfate particles into stratosphere won't fully offset climate change
Scientists aboard Iberian coast ocean drilling expedition report early findings
Waiting for Death Valley's Big Bang
Rock stability research could make mining and construction safer
Researchers identify molecular 'culprit' in rise of planetary oxygen