Navigation Links
Newly discovered ocean plume could be major source of iron
Date:8/19/2013

n indicator of vent activity, have found little coming from mid-Atlantic vents, and researchers have assumed that means the vents spew little iron as well.

So Saito and his colleagues were surprised by what their samples revealed when later studied in the lab. Once filtered and analyzed, some of the seawater showed unexpectedly high levels of iron and manganese. When Abigail Noble, then a WHOI graduate student, and Saito plotted the sites where the iron-rich samples were taken, they realized the samples formed a distinct plumea cloud of nutrients ranging in depth from 1,500 to 3,500 meters that spanned more than 1,000 km of the South Atlantic Ocean.

"We had never seen anything like it," Saito says. "We were sort of shockedthere's this huge bull's-eye right in the middle of the South Atlantic Ocean. We didn't quite know what to do with it, because it went contrary to a lot of our expectations."

The plume's ratio of iron to helium was 80-fold higher than ratios reported for faster-spreading ridges in the southeastern Pacific Ocean.

The serendipitous discovery casts doubt on the assumption that slow-spreading ridges are iron-poor, and it raises questions about the use of helium as an indicator for iron flux in hydrothermal vents, Saito says.

"We've assumed that low helium means low iron, and our study finds that that's not true," Saito says. "There's actually quite a lot of iron coming out of these slow-spreading regions in the Atlantic, where people thought there would be little to none."

And that has profound implications, because iron is a critical element for ocean life. Iron is known to spur the growth of phytoplankton in many marine habitats, especially those important in the ocean's carbon cycle, which, in turn, impacts atmospheric carbon dioxide levels and Earth's climate. Because more than half the world's seafloor ridges are slow-spreading, the team's discovery suggests there may be far more iron from the
'/>"/>

Contact: Media Relations Office
media@whoi.edu
508-289-3340
Woods Hole Oceanographic Institution
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Newly released FDA draft guidelines for biosimilar drugs to be discussed at conference
2. Scripps Research discoveries lead to newly approved drug for infant respiratory distress syndrome
3. Newly discovered foot points to a new kid on the hominin block
4. Newly found protein helps cells build tissues
5. Scientists advance field of research with publication of newly validated method for analyzing flavanols in cocoa
6. Key proteins newly discovered form and function may provide novel cancer treatment target
7. Newly discovered breast milk antibodies help neutralize HIV
8. Newly discovered dinosaur implies greater prevalence of feathers
9. U of M researchers: Newly discovered genetic markers could signal colon cancer development
10. ORNLs newly licensed neutron detector will advance human disease research
11. Newly discovered letters and translated German ode expand Texas link to infamous Bone Wars
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/16/2014)... – Post-menopausal women experienced improvements in vaginal atrophy, ... genital bleeding, after 12 weeks of daily 10 ... germ-based nutritional supplement previously shown to help relieve ... pilot study reported in a poster at the ... , "These data documented improved vaginal epithelium, ...
(Date:10/15/2014)... has admitted Johannes Gutenberg University Mainz (JGU) as ... hub continues to maintain a significant nationwide standing ... "The acceptance of Johannes Gutenberg University Mainz as ... milestone in the national and international competition for ... of Rhineland-Palatinate can be proud that Mainz University ...
(Date:10/15/2014)... 2014   Neurotechnology , a provider of ... of the VeriLook Surveillance 3.0 software development ... biometric face identification using live video streams from ... new version not only identifies faces in a ... while they are moving through the video frame. ...
Breaking Biology News(10 mins):S-equol supplements associated with improved measures of reproductive health in postmenopausal women 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 3VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 2VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 3
... has announced the winners of its International Relations ... 56th Annual Meeting at the San Diego Convention ... The purpose of these awards is to foster ... scientists working in countries experiencing financial difficulties. Recipients ...
... The Biophysical Society has announced the winners of its ... Society,s 56th Annual Meeting at the San Diego Convention ... the Society,s Committee for Professional Opportunities for Women (CPOW), ... of women biophysicists and encourage their participation at the ...
... of the birds, postgraduate Matthias Kopp, under the guidance of ... breeding areas on King George Island, about 120 kilometers off ... data over a period of several years, followed by an ... "With the help of these data we can now for ...
Cached Biology News:Biophysical Society Announces winners of 2012 International Relations Committee travel awards 2Biophysical Society Announces winners of 2012 International Relations Committee travel awards 3Biophysical Society Announces winners of 2012 International Relations Committee travel awards 4Biophysical Society announces winners of 2012 CPOW travel awards 2Where Antarctic predatory seabirds overwinter 2
(Date:10/22/2014)... (PRWEB) October 22, 2014 WriteResult, ... services – has been working with a team of ... New Haven Farms Community Farming Collaborative to provide electronic ... solution. The study, which started in May, aims ... that provides participants weekly exposure to and participation in ...
(Date:10/22/2014)... According to new market research report ... Integration, Deployment & Support), by Service Model (SaaS, ... Others (Hybrid & Community)) - Global Forecast to ... Cloud Professional Services Market into various sub-segments with ... also identifies the drivers and restraints for this ...
(Date:10/22/2014)... , Oct. 22, 2014 Research ... "Organic Electronics Market by Material, by Application, Geography - ... to their offering. Organic electronics, also ... branch of material science which deals with small conductive ... organic because small molecules and polymers are carbon based, ...
(Date:10/20/2014)... Richardson, Texas (PRWEB) October 20, 2014 ... today announced that a team from Iowa State University ... * design contest. Using a Convey HC-2ex, the team’s ... than 14 times faster than the second place finisher. ... academic world embarked upon the month long challenge, using ...
Breaking Biology Technology:myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 2myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 4Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 5Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 2Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 3Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 2Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 3
... 2011 To assist U.S. employers in understanding and ... implications of health reform, The Vitality Group , ... paper. The information is publicly available and can be ... (Logo:   http://photos.prnewswire.com/prnh/20110713/CG34519LOGO ) This paper ...
... 2011 Reportlinker.com announces that a new ... catalogue: Industrial Biotechnology China ... In this issue, we ... regulation about biofuel, which include "Instruction for ...
... July 12, 2011 Comprendia, leading developer of ... life sciences, sponsored by molecular biology reagents provider ... online resource that will support epigenetics research. Epigenetics ... for oncology, neurology, metabolism and disease mechanisms.  ,Engaging ...
Cached Biology Technology:The Vitality Group Helps U.S. Businesses Navigate New Legal Environment for Health and Wellness Programs 2Industrial Biotechnology China News 1106 2Industrial Biotechnology China News 1106 3Industrial Biotechnology China News 1106 4Comprendia and New England Biolabs Connect Epigenetics Scientists with New Social Media Application 2Comprendia and New England Biolabs Connect Epigenetics Scientists with New Social Media Application 3
Cell Culture Flask, nontreated polystyrene...
iNOS/NOS Type II Purified Anti-Mouse, Anti-Rat, Anti-Human clone Polyclonal, Isotype Rabbit Ig, 150 µg Consult technical datasheet for details....
...
... This high pressure gradient system ... piston pumps and the Adept CE 4200 dual ... and data processing is provided by PowerStream data ... heater/chillers can be supplied. The supplied ...
Biology Products: