Navigation Links
Quakes under Pacific floor reveal unexpected circulatory system
Date:1/9/2008

Jan. 7, 2008Zigzagging some 60,000 kilometers across ocean floors, earths system of mid-ocean ridges plays a pivotal role in many workings of the planet, from its plate-tectonic movements to heat flow from the interior, and the chemistry of rock, water and air. It was not until the late 1970s that scientists discovered the existence of vast plumbing systems under the ridges, which pull in cold water, superheat it, then spit it back out from seafloor ventsa process that brings up not only hot water, but dissolved substances taken from rocks below. Unique life forms feed off the vents stew, and valuable minerals including gold may pile up. Now, a team of seismologists working under 2,500 meters of water on the East Pacific Rise, some 565 miles southwest of Acapulco, Mexico, has created the first images of one of these systemsand it does not look the way most scientists had assumed. The resulting study appears in the Jan. 10 issue of the journal Nature.

The hypothetical image of a hydrothermal-vent system shows water forced down by overlying pressure through large faults along ridge flanks. The water is heated by shallow volcanism, then rises toward the ridges middles, where vents (often called black smokers, for the cloud of chemicals they exude) tend to cluster. The new images, from a 4-kilometer-square area show a very different arrangement. The water appears to descend instead through a sort of buried 200-meter-wide chimney atop the ridge, run below the ridge along its axis through a tunnel-like zone just above a magma chamber, and then bubble back up through a series of vents further along the ridge. If you google on images of hydrothermal vents, you come up with cartoons that dont at all match what we see, said lead author Maya Tolstoy, a marine seismologist at Lamont-Doherty Earth Observatory, part of Columbia Universitys Earth Institute.

The images were created using seismometers planted around the ridge t
'/>"/>

Contact: Kevin Krajick
kkrajick@ei.columbia.edu
212-854-9729
The Earth Institute at Columbia University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Radioactive understudy may aid medical imaging, drug development
2. Insects giant leap reconstructed by founder of sociobiology
3. Katherine Freed wins first place at the International ISPE Undergraduate Poster Contest
4. Computational mathematical sciences receives NSF grant for undergraduate research
5. BGSU undergraduates to pilot groundbreaking genome project
6. Indigenous water frogs under threat
7. Atmospheric measuring device for understanding smog formation
8. Sunbathing tree frogs future under a cloud
9. Market testing of dietary supplements and drugs underscores value of USPs public health programs
10. Opium and marijuana research go underground
11. Mice help researchers understand chlamydia
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Quakes under Pacific floor reveal unexpected circulatory system
(Date:11/18/2014)... WASHINGTON , Nov. 18, 2014  The ... Security Industry Association today jointly announce the formation ... and release of its Identity and Biometric ... (Framework). The Framework received official support from BORDERPOL, ... governments to improve and provide expertise regarding border ...
(Date:11/18/2014)... The Parenteral Drug Association (PDA) today confirmed that ... and at least seven more will participate in the upcoming ... Hotel in Washington D.C. , Dec. 2-4. ... support from the regulatory agencies in the United ... our effort to help advance the use of metrics in ...
(Date:11/15/2014)...  While we may still be a few years away ... Trek" to gain instant access to all that ailed his ... and tablets for monitoring and measuring our health are cropping ... seem a tad Orwellian to some, but a new survey ... technological opportunities into their healthcare regime. These are ...
Breaking Biology News(10 mins):Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 3FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2Americans May Be Ready for a Brave New World of Healthcare 2Americans May Be Ready for a Brave New World of Healthcare 3Americans May Be Ready for a Brave New World of Healthcare 4
... led to enormous advancements in the scientific field. Through ... gain valuable knowledge about causative and preventative factors for ... the wider availability of such information also has a ... Researchers from Tel Aviv University and the Whitehead ...
... government invested more than $25 billion in health information ... and Recovery Act; yet, little is known about how ... Now, a University of Missouri nursing informatics expert suggests ... communication strategies among clinical staff, which allows staff to ...
... Researchers from the Polytechnic University of Catalonia have developed ... a technique called electroporation, which involves opening pores in ... like drugs and DNA. Current methods are aggressive and ... voltage electroporation with a small printed circuit board, which ...
Cached Biology News:A privacy risk in your DNA 2A privacy risk in your DNA 3Information Technology improves patient care and increases privacy, MU informatics expert says 2A Spanish breakthrough allows the electroporation of cell cultures for less than 1 Euro 2A Spanish breakthrough allows the electroporation of cell cultures for less than 1 Euro 3
(Date:11/28/2014)... The American Association of Colleges of ... Nursing with a very prestigious award for its ... Innovations in Professional Nursing Education Award recognizes the ... them as they re-envision traditional models for nursing ... meeting in Washington, D.C. to Meredith Wallace Kazer, ...
(Date:11/27/2014)... 2014 First articles published ... Elsevier , a world-leading provider of scientific, ... to announce the launch of a new journal: ... The launch of Extreme Mechanics Letters ... forefront of applied sciences such as micro and nanotechnologies, ...
(Date:11/26/2014)... Texas (PRWEB) November 26, 2014 ... Industry” is a professional and in-depth research report ... Bifluoride information, like its definition, classification, application, and ... This report covers the international market analysis, including ... as the US, Europe, Asia, China, Japan etc. ...
(Date:11/26/2014)... 2014 The Alliance for Safe ... of European physicians at the "1 ST ... Therapies" at the Spanish Ministry of Health, Social ... and the Spanish Bioindustry Association (ASEBIO), included regulators ... Spanish oncology and rheumatology societies, representatives from a ...
Breaking Biology Technology:American Association of Colleges of Nursing honors Fairfield University’s School of Nursing for Re-envisioning Nursing Education 2Elsevier Announces the Launch of a New Journal: Extreme Mechanics Letters 2Elsevier Announces the Launch of a New Journal: Extreme Mechanics Letters 3Ammonium Bifluoride Market International Analysis of Manufacturing, Technology & Trends Now at ReportsnReports.com 2Ammonium Bifluoride Market International Analysis of Manufacturing, Technology & Trends Now at ReportsnReports.com 3ASBM Presents European Physicians Survey at Spanish Ministry of Health 2
... SCOTTSDALE, Ariz. , Feb. 4 A ... cancer care in community oncology practices revealed that Medicare covers ... providing related infusion room services to seniors with cancer. The ... planning, care coordination, and follow-up care planning -- are not ...
... ... , ... (Vocus) February 4, 2010 -- Qteros, Inc. , a leading developer of second-generation ... announced today that Mick Sawka has joined the company as Vice President, Business Development, ...
... RESEARCH TRIANGLE PARK, N.C. , Feb. 4 ... orally available antiviral therapeutics, announced today that Gwendolyn Powell ... Medical Officer.   , Dr. Painter has more than 20 ... clinical development, clinical safety and pharmacovigilance, and occupational and environmental ...
Cached Biology Technology:Study: Medicare Covers Only Half the Cost of Administering Chemotherapy to Seniors with Cancer 2Study: Medicare Covers Only Half the Cost of Administering Chemotherapy to Seniors with Cancer 3Study: Medicare Covers Only Half the Cost of Administering Chemotherapy to Seniors with Cancer 4Biofuels Technology Leader Qteros Names Mick Sawka Vice President, Business Development 2Biofuels Technology Leader Qteros Names Mick Sawka Vice President, Business Development 3Chimerix Names Wendy Painter, M.D., M.P.H., as Chief Medical Officer 2Chimerix Names Wendy Painter, M.D., M.P.H., as Chief Medical Officer 3
... Identical to the DH-2000, except that it ... 190-1700 nm wavelength range and comes with a ... up to 5 Hz) The DH-2000 ... spectrum of deuterium and tungsten halogen light sources ...
... depleted of a single complement protein. With ... alternative and classical pathways are left intact. ... detection and quantitation of hemolytically active complement ... assess complement activation in non-human species. A ...
... that it uses a deep-UV deuterium bulb, which ... with a shutter (controlled via a TTL signal ... Source produces a powerful, stable output from 215-400 ... source are available, providing a wavelength range of ...
... The FLUOstar OPTIMA is a ... built for life science labs in ... four different measurement principles: Fluorescence ... applications Time-Resolved Fluorescence including ...
Biology Products: