Earth News, Earth Science, Energy Technology, Environment News

April 26, 2013

Ancient Earth crust stored in deep mantle
Washington DC (SPX) Apr 25, 2013
Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials from the early Earth's crust. But decisive evidence for this phenomenon has proven elusive. New research from a team including Carnegie's Erik Hauri demonstrates that oceanic volcanic rocks contain samples of recycled crust dating back to the Archean era 2.5 billion years ago. Their work is published in Nature. Oceanic crust sinks into the Earth's mantle at so-called subduction zones, where two ... read more

Previous Issues

Apr 25

Apr 24

Apr 23

Apr 22

Apr 19

Rethinking early atmospheric oxygen A research team of biogeochemists at the University of California, Riverside has provided a new view on the relationship between the earliest accumulation of oxygen in the atmosphere, arguably the m ... more		Scientists Detect Dark Lightning Linked To Visible Lightning Researchers have identified a burst of high-energy radiation known as "dark lightning" immediately preceding a flash of ordinary lightning. The new finding provides observational evidence that the t ... more		Satrec Initiative of South Korea Continues Collaboration with UAE for DubaiSat-3 Program Satrec Initiative (SI) of South Korea and the Emirates Institution for Advanced Science and Technology (EIAST) of United Arab Emirates jointly announced the development program of the DubaiSat-3 Ear ... more
				Sea stalactites provide clues to origin of life Life on Earth may have originated not in warm tropical seas, but with weird tubes of ice - sometimes called "sea stalactites" - that grow downward into cold seawater near the Earth's poles, scientis ... more		Study Led by NUS Scientists Reveals Escalating Cost of Forest Conservation In the face of unprecedented deforestation and biodiversity loss, policy makers are increasingly using financial incentives to encourage conservation. However, a research team led by the Natio ... more

Israeli scientists discover why soft corals have unique pulsating motion Scientists from the Hebrew University of Jerusalem and the Technion-Israel Institute of Technology have discovered why Heteroxenia corals pulsate. One of the most fascinating and spectacular sights ... more		Johns Hopkins Team Deploys Hundreds of Tiny Untethered Surgical Tools in First Animal Biopsies By using swarms of untethered grippers, each as small as a speck of dust, Johns Hopkins engineers and physicians say they have devised a new way to perform biopsies that could provide a more effecti ... more		DeepSeek shock shows Europe not out of AI race: experts Chinese AI DeepSeek says hit by large-scale cyberattack Philippines, US, Vietnam, Indonesia train for maritime law enforcement cooperation		Sunlit Snow Triggers Atmospheric Cleaning, Ozone Depletion in the Arctic National Science Foundation-funded researchers at Purdue University have discovered that sunlit snow is the major source of atmospheric bromine in the Arctic, the key to unique chemical reactions th ... more
				Humans passing drug resistance to animals in protected Africa A team of Virginia Tech researchers has discovered that humans are passing antibiotic resistance to wildlife, especially in protected areas where numbers of humans are limited. In the case of ... more		Wildfires can burn hot without ruining soil When scientists torched an entire 22-acre watershed in Portugal in a recent experiment, their research yielded a counterintuitive result: Large, hot fires do not necessarily beget hot, scorched soil ... more

Solar systems for home and business installations

Tempur-Pedic Mattress Comparison & Memory Foam Mattress Review

Ancient DNA reveals Europe's dynamic genetic history Ancient DNA recovered from a series of skeletons in central Germany up to 7500 years old has been used to reconstruct the first detailed genetic history of modern Europe. The study, published ... more		Insights into deadly coral bleaching could help preserve reefs Coral reefs are stressed the world over and could be in mortal danger because of climate change. But why do some corals die and others not, even when exposed to the same environmental conditions? ... more		BlackSky secures $100 million contract for next-generation space monitoring capabilities ESA and Hisdesat prepare to launch advanced secure communications satellite OpenAI tailors version of ChatGPT for US government		Just what makes that little old ant change a flower's nectar content? Ants play a variety of important roles in many ecosystems. As frequent visitors to flowers, they can benefit plants in their role as pollinators when they forage on sugar-rich nectar. However, a new ... more
				NASA's HyspIRI: Seeing the Forest and the Trees and More To Robert Green, light contains more than meets the eye: It contains fingerprints of materials that can be detected by sensors that capture the unique set of reflected wavelengths. Scientists have u ... more		H7N9 flu 'one of most lethal' says WHO as spreads to Taiwan International experts probing China's deadly H7N9 bird flu virus said Wednesday it was "one of the most lethal influenza viruses" seen so far as Taiwan reported the first case outside the mainland. ... more

Landslide kills 14 in Ecuador

Pakistan quake victims burn tyres at angry protests

Hong Kong searches for 6 missing crew after boat crash

Space debris problem now urgent - scientists

MEADS Low Frequency Sensor Cues Multifunction Fire Control Radar in Test

Nothing Bugs These NASA Aeronautical Researchers

Rivers Act As 'Horizontal cooling towers'

Insights into deadly coral bleaching could help preserve reefs

Israeli scientists discover why soft corals have unique pulsating motion

Chinese ship sinks off Antarctica: Chile

Sea stalactites provide clues to origin of life

Age matters to Antarctic clams

	Deep, Permeable Soils Buffer Impacts of Agricultural Fertilization on Streams and Rivers in Southern Amazon The often damaging impacts of intensive agriculture on nearby streams, rivers, and their wildlife has been well documented in temperate zones, such as North America and Europe. Yet a new study ... more		Argentine farming disarray seen to affect output Argentine government policies are affecting agricultural output and are blamed for creating imbalances in the sector, independent data indicated. ... more		Fish was on the menu for early flying dinosaur University of Alberta led research reveals that Microraptor, a small flying dinosaur was a complete hunter, able to swoop down and pickup fish as well as its previously known prey of birds and tree ... more		Ecology, economy and management of an agro-industrial Amazon frontier Published today, a special issue of the Philosophical Transactions of The Royal Society - Biological Sciences, addresses a major challenge facing our society: feeding a global population that is sim ... more

NASA Juno Mission Discovers Record-Breaking Volcanic Activity on Io

A super-Earth laboratory for finding life beyond our solar system

How to Operate NASA's Orion Spacecraft for Artemis II Mission

Double cropping helps Brazil develop		Study finds that residential lawns efflux more carbon dioxide than corn fields		X-ray analysis could boost legumes, thus reducing fertilizer pollution		New studies explore mango's potential health-affirming properties		New data show that white potatoes increase intake of potassium
Nitrogen has key role in estimating CO2 emissions from land use change		New Caledonia bans shark fishing		Cheetahs in race to survive		Pentagon chief presses Islamist-led Egypt on reforms		Landslide kills 14 in Ecuador

US to test handheld scanner for fake malaria drugs

Ancient skeletons reveal genetic 'history' of Europe's peoples

Thirteen killed, dozens hurt in Afghan quake

Research Harnesses Solar-Powered Proteins to Filter Harmful Antibiotics from Water

China bird flu spreads to new province

Massive amounts of charcoal enter the worlds' oceans

Ocean acidification as a hearing aid for fish?

New NASA Satellite Takes the Salton Sea's Temperature

Ultrafast technique unlocks design principles of quantum biology

Something's Fishy in the Tree of Life

Is pet ownership sustainable?

Climate scientists say Asian monsoon forecasts could improve

Google says Street View data now take in 50 countries

Chinese ship sinks off Antarctica: Chile

Recipe for Low-Cost, Biomass-Derived Catalyst for Hydrogen Production

GL RC Certifies Alstom's 1MW Tidal Turbine Prototype

New Battery Design Could Help Solar and Wind Energy Power the Grid

Battery and Memory Device in One

Nothing Bugs These NASA Aeronautical Researchers

S. Korea, US extend nuclear pact

Free Newsletters - Space - Defense - Environment - Energy

Buy Advertising

Media Advertising Kit

Editorial & Other Enquiries

Privacy statement

The contents herein, unless otherwise known to be public domain, are Copyright 1995-2013 - SpaceDaily. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by SpaceDaily on any web page published or hosted by SpaceDaily. Privacy statement