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:4/17/2014)... serious conditions such as heart disease, epilepsy and pain, ... Unfortunately, there is still much scientists do not know ... unexpected insight into the structure of sodium channels and, ... which are responsible for ,fine-tuning, the activity of the ... edition of the Journal of Biological Chemistry . ...
(Date:4/17/2014)... expression is the process whereby the genetic information ... such as proteins, which have numerous different functions ... an important intermediary during gene expression, by relating ... mechanisms involved in manufacturing proteins. , By ... molecules present in an organism at a given ...
(Date:4/17/2014)... National University (ANU), have developed a new way ... over the past 5.3 million years., The findings ... ice ages over the past two million years, ... dioxide levels, global temperatures and sea levels., The ... and the National Oceanography Centre (NOC) in the ...
Breaking Biology News(10 mins):Structure of sodium channels different than previously believed 2Rapid and accurate mRNA detection in plant tissues 2Ancient sea-levels give new clues on ice ages 2
... D.C.Carnegie staff scientist Greg Asner has been elected to ... 84 new members and 21 foreign associates from 14 ... achievements in original research." The total number of active ... in 2001 as the Department of Global Ecology,s first ...
... plots in the Northeast and Midwestern United States contain at ... study found. The study across two dozen states from North ... the landscape where invasive plants might take root. "We ... forest inventory had at least one introduced species, but this ...
... for compounds related in composition to the active ingredient in ... published in the Journal of Leukocyte Biology ... (CB2) receptor in white blood cells, specifically macrophages, appear to ... link through which the pharmaceutical properties of cannabis are manifested. ...
Cached Biology News:Carnegie's Greg Asner elected to National Academy of Sciences 2In the Northeast, forests with entirely native flora are not the norm 2Synthetic derivatives of THC may weaken HIV-1 infection to enhance antiviral therapies 2
(Date:1/15/2014)... The Microcompetition with Foreign DNA theory explains how latent viruses ... is the Epstein Barr Virus (EBV), and one of these ... chronic inflammatory disease that destroys the body’s joints. As predicted ... high concentrations of EBV DNA in their bodies (1). ...
(Date:1/15/2014)... Scottsdale, Arizona (PRWEB) January 15, 2014 ... growth for Scottsdale’s Brain State Technologies®. They saw continued ... University Medical Center who were awarded a $1 million ... papers published in “Brain and Behavior” a peer reviewed ...
(Date:1/15/2014)... AudioNotch is the internet's leading provider of ... of tinnitus. Patients listen to sound therapy that is ... of weeks to months, their tinnitus volume decreases. , AudioNotch ... Music and Notched White Noise. Now, AudioNotch is pleased to ...
(Date:1/14/2014)... Doylestown, PA (PRWEB) January 14, 2014 Date: ... p.m. , Location: Warrington Country Club, 1360 Almshouse Road, Warrington, ... only national nonprofit organization solely dedicated to finding a cure ... those affected worldwide, will host its annual Crystal Ball on ...
Breaking Biology Technology:Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2
... Jonathan Stamler Has Authored A New Understanding Of Heart ... Therapeutics,Inc. (OTC Bulletin Board: DSKA) ("Duska") announced today that ... exclusive scientific consultant,to advise on the clinical development of ... Dr. Stamler is the George Barth Geller Professor ...
... today,announced that healthcare industry veteran John J. Arlotta ... was announced during the,most recent NOVIS Board of ... http://www.newscom.com/cgi-bin/prnh/20081023/CLTH043LOGO ), "I am very ... and I look forward to,helping the company achieve ...
... Oct. 23 LI-COR(R) Biosciences in,partnership with ... system to LI-COR,s small animal imaging platforms. ... components required to connect,to the Pearl Imager(TM) ... veterinarians, is simple to operate, works safely ...
Cached Biology Technology:Leading Heart Specialist Joins Duska Therapeutics as Scientific Consultant 2Leading Heart Specialist Joins Duska Therapeutics as Scientific Consultant 3Leading Heart Specialist Joins Duska Therapeutics as Scientific Consultant 4Leading Heart Specialist Joins Duska Therapeutics as Scientific Consultant 5NOVIS Announces Appointment of John J. Arlotta as Chairman 2LI-COR Biosciences and Euthanex Corporation Provide Anesthesia System for Small Animal Imaging 2
...
...
Collected from sexually matured, mixed breed, mixed sex guinea pigs....
Antibody specific for phosphorylattion of histone H3 that occurs during mitosis. Rabbit polyclonal serum. Antigen: Synthetic peptides derived from histone H3, phosphorylated at serines 10 or 28...
Biology Products: