Navigation Links
Magma in Earth's mantle forms deeper than once thought
Date:1/24/2013

Magma forms far deeper than geologists previously thought, according to new research results.

A team led by geologist Rajdeep Dasgupta of Rice University put very small samples of peridotite, rock derived from Earth's mantle, under high pressures in a laboratory.

The scientists found that the rock can and does liquify, at least in small amounts, at pressures equivalent to those found as deep as 250 kilometers down in the mantle beneath the ocean floor.

Dasgupta said that this answers several questions about Earth's inner workings.

He is the lead author of a paper that appears today in the journal Nature. The research was funded by the National Science Foundation (NSF).

"The results show that in some parts of the Earth, melting, or magma formation, happens very deep beneath Earth's surface," said geologist Jennifer Wade, a program director in NSF's Division of Earth Sciences, which funded the research.

"It also means that some carbon dioxide and water could come from different sources--and deeper within the Earth--than we believed."

The mantle is the planet's middle layer, a buffer of rock between the crust--the top five miles or so--and the Earth's core.

If one could compress millions of years of observation of the mantle to mere minutes, the mantle would look like a rolling mass of rising and falling material.

This slow but constant churning convection brings materials from deep within the Earth to the surface, and higher, through volcanic eruptions.

The team focused on the mantle beneath the ocean because that's where crust is created and where, Dasgupta said, "the connection between the interior and surface world is established."

Magma rises with convective currents, then cools and spreads out to form ocean-floor crust.

The starting point for melting has long been thought to be at 70 kilometers beneath the seafloor.

That had confoun
'/>"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Mafic melts, methane seeps, 2 million waves, foreign magma, and the invisible hand
2. A new gene thought to be the cause in early-onset forms of Alzheimers disease
3. Research on carbon-consuming life-forms in Antarctica published in JoVE
4. Study by UC Santa Barbara psychologists reveals how brain performs motor chunking tasks
5. AcelRx Pharmaceuticals Receives First U.S. Patent for Small-Volume Oral Transmucosal Dosage Forms
6. Creating a future of personalized medicine: U-M forms joint venture for DNA diagnostics
7. Desert farming forms bacterial communities that promote drought resistance
8. Insect-eating bat outperforms nectar specialist as pollinator of cactus flowers
9. Wind pushes plastics deeper into oceans, driving trash estimates up
10. A deeper look into the pathogen responsible for crown gall disease in plants
11. In protein folding, internal friction may play a more significant role than previously thought
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Magma in Earth's mantle forms deeper than once thought
(Date:9/21/2014)... what was previously thought, newborn immune T cells may ... bacteria, according to a new study led by King,s ... to that of adults, babies may still be able ... published in the journal Nature Medicine . , ... types of immune cells, including neutrophils which play an ...
(Date:9/21/2014)... a protein therapy that disrupts the process that causes ... travel through the blood stream and start aggressive new ... as metastasis, can cause cancer to spread with deadly ... to cancer fall prey to metastatic forms of the ... who describes a new therapeutic approach in Nature ...
(Date:9/19/2014)... by researchers from several Harvard University labs in ... and aspiring researchers with the intellectual raw materials ... from soft, flexible materials. , With the advent ... advances in manufacturing technology, soft robotics is emerging ... from conventional rigid robot design, but working with ...
Breaking Biology News(10 mins):Immune system of newborn babies is stronger than previously thought 2Stanford researchers create 'evolved' protein that may stop cancer from spreading 2Stanford researchers create 'evolved' protein that may stop cancer from spreading 3Stanford researchers create 'evolved' protein that may stop cancer from spreading 4Soft robotics 'toolkit' features everything a robot-maker needs 2
... - A study comparing a University of Pennsylvania ... to the traditional American method has shown that 80 ... traditional method are actually at risk for developing osteoarthritis ... The results indicate that traditional scoring of radiographs that ...
... most established fisheries certifier is failing on its promises ... leading fisheries experts from the University of British Columbia ... California at San Diego and elsewhere. Established in ... of the world,s largest fish retailers, the Marine Stewardship ...
... but estrogen might not be the reason. Testosterone, though, could ... the lab of Florida State University researcher Mohamed Kabbaj, associate ... a five-year, $1.8 million grant from the National Institute of ... research team also is working to identify the role of ...
Cached Biology News:Hip dysplasia susceptibility in dogs may be underreported, according to Penn Vet comparative study 2Hip dysplasia susceptibility in dogs may be underreported, according to Penn Vet comparative study 3Hip dysplasia susceptibility in dogs may be underreported, according to Penn Vet comparative study 4Seafood stewardship questionable: UBC-Scripps experts 2Seafood stewardship questionable: UBC-Scripps experts 3Why does anxiety target women more? FSU researcher awarded $1.8 million grant to find out 2
(Date:9/19/2014)... , September 19, 2014 BioTech ... developments, patents and results of studies and trials.  Companies ... and Company (NYSE: LLY ), Gilead Sciences ... CELG ) and Arena Pharmaceuticals Inc. (NASDAQ: ... in developing prodrug therapeutics for the treatment of cancer, ...
(Date:9/19/2014)... September 19, 2014 The new , ... , available today on PharmaBoardroom.com for ... crisis that rocked the Spanish economy in 2009, and the ... community has remained pragmatic in times of trouble. ... the fifth biggest European market, and the general conditions to ...
(Date:9/18/2014)... A novel robotic system that can operate ... being tested as part of a biomedical research partnership ... the aim of determining if the robot, in conjunction ... faster, more accurate, less costly, and less discomforting for ... to deliver prostate cancer therapies with greater precision. , ...
(Date:9/18/2014)... Research and Markets has announced ... Cell Industry Report, 2014-2017" report to their offering. ... that can differentiate into specialized cells and can divide ... therapy can be applied to treatment of cardiovascular diseases, ... diseases, damage or lesion of liver, kidney and other ...
Breaking Biology Technology:Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 2Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 3Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 4Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 5Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 6Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 7PharmaBoardroom Releases New Spain Pharmaceuticals Report 2PharmaBoardroom Releases New Spain Pharmaceuticals Report 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 4Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 5Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 6Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3
... body, then alarm bells start ringing. Such clumps, ... type 2 diabetes, formerly called adult-onset diabetes. If ... might be able to treat such diseases more efficiently. ... the Helmholtz-Zentrum Dresden-Rossendorf and the university in Aarhus, Denmark, ...
... The Plasma Protein Therapeutics Association (PPTA) applauds the ... Drugs Act ( H.R. 2672 ) and ( S. ... therapies that treat patients with rare diseases by eliminating barriers ... on plasma protein therapies are coping with a very rare ...
... (NASDAQ: GPRO ) today reported financial results for ... million and non-GAAP earnings per share (EPS) of $0.51.   ... products in the second quarter of 2011, while supply chain ... sales a year ago," said Carl Hull, the Company,s president ...
Cached Biology Technology:In the pursuit of dangerous clumps 2In the pursuit of dangerous clumps 3PPTA Praises Legislation That Protects the Treatment of Rare Diseases 2Gen-Probe Reports Financial Results for the Second Quarter of 2011 2Gen-Probe Reports Financial Results for the Second Quarter of 2011 3Gen-Probe Reports Financial Results for the Second Quarter of 2011 4Gen-Probe Reports Financial Results for the Second Quarter of 2011 5Gen-Probe Reports Financial Results for the Second Quarter of 2011 6Gen-Probe Reports Financial Results for the Second Quarter of 2011 7Gen-Probe Reports Financial Results for the Second Quarter of 2011 8Gen-Probe Reports Financial Results for the Second Quarter of 2011 9Gen-Probe Reports Financial Results for the Second Quarter of 2011 10Gen-Probe Reports Financial Results for the Second Quarter of 2011 11Gen-Probe Reports Financial Results for the Second Quarter of 2011 12Gen-Probe Reports Financial Results for the Second Quarter of 2011 13Gen-Probe Reports Financial Results for the Second Quarter of 2011 14
UltraPure DNase/RNase-Free Distilled Water is designed for use in all molecular biology applications. It is 0.1-m membrane-filtered and tested for DNase and RNase activity....
...
Water Distilled (Gibco™) is membrane filtered and endotoxin screened....
Immunogen: Human Respiratory Syncytial Virus (RSV) and Bovine Respiratory Syncytial Virus (BRSV) Fusion protein Storage: -20 C, Avoid Freeze/Thaw Cycles...
Biology Products: