Navigation Links
Antarctica: The story behind the ice

The influence of ocean currents in climate change and the story behind Antarctica’s icy ambience, is unraveled by ancient fish teeth// that seem to be holding the clue.

An element pretty unheard of and extremely rare, identified in the tiny fish teeth has offered a clue to the University of Florida geologists in estimating the period when the passage between Atlantic and Pacific might have opened up. This has happened obviously millions of years ago, during warmer times, when ocean current was formed around the pole and is thought to have contributed in great measure to Antarctica’s metamorphosis from a forested continent to an icy one.

Fish teeth contain a mineral called apatite, which absorbs the neodymium on the seafloor. This is probably the reason why UF researchers chose to study fish teeth. The geologists obtained the teeth from sedimentary cores, in the South Atlantic Ocean. Measurements using a technique called thermal ionization mass spectrometry revealed the teeth neodymium had a signature of the Pacific, indicating at least a surface connection between the oceans. The presence of neodymium with a Pacific signature in the deep Atlantic suggests that Pacific surface waters flowed into the South Atlantic, where they cooled and sank.

According to the Geologists, the opening of passage could have caused the plunge in temperatures because the circumpolar current would have isolated Antarctica from warm subtropical water carrying heat from the tropics. In addition, the circumpolar current sets up conditions leading to upwelling of cold, nutrient-rich water. This in turn may have spurred the growth of algae and higher forms of biological life, which consumed carbon dioxide, reducing levels and contributing to cooling the continent's climate.

Source: Eureka Alet
'"/>




Page: 1

Related medicine news :

1. Robots craft medical history
2. Breast cancer in younger women strongly linked to family history
3. FDA asks the doctors to take the patients’ dietary history before prescribing medication
4. Three Sisters Have One Baby and Make History
5. Family history of alcoholism influences reaction to advice
6. A cheesy story!!!
7. Skin Cancer History Puts Post-menopausal White Women At Risk For Melanoma
8. CT Scan A Must For Smokers With Family History Of Lung Cancer
9. Reverse Heart Transplant Surgery On A Little Girl Makes History
10. Understanding the History of HIV Infection Is Vital To Develop a Vaccine
11. Learn From a Leader: Smitherman shares a personal story about his battle with drugs
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Antarctica The story behind the ice

(Date:9/30/2014)... Seattle, WA (PRWEB) September 30, 2014 ... Intelligence, proudly announced today that the Department of ... Office as its Enterprise End User Business ... to better support our nation’s veterans by enabling ... obtained through BI Office’s powerful enterprise analytics and ...
(Date:9/30/2014)... September 30, 2014 “Biology and ... Bryan W. Brickner, “and it’s about naming rights.” ... Science , new on the Bryan William Brickner ... the National Institutes of Health (PubMed). The post ... sleep disturbances, REM transitions, aging with THC, the ...
(Date:9/30/2014)... A trailblazer at heart, Dr. Scott Katzman stays ... breakthroughs in spine repairs. His newest appreciation has been ... in which he has implanted the Mobi-C Artificial Disc ... art and mimic normal human disc motion. Dr. Katzman goes ... to be an exceptional replacement device for failing fusions. Patients ...
(Date:9/30/2014)... 3M has added four new thin VHB products to ... 5906 , 3M 5907 , 3M 5908 , ... create the strongest bond possible to a wide range of ... difficult surfaces such as paints, low surface energy plastics, and ... are designed specifically for electronic device engineers and electronics manufacturers. ...
(Date:9/30/2014)... RI (PRWEB) September 30, 2014 Dogs are ... Oftentimes, this involves spending time in the car travelling from ... canines have free run of the vehicle; however, this is ... owner as well. Royal Flush Havanese shares with ... always be routine practice. , There are many ways a ...
Breaking Medicine News(10 mins):Health News:U.S. Department of Veterans Affairs Takes Its Analytic Capabilities to the Next Level with BI Office from Pyramid Analytics 2Health News:Homeostasis: Publius’ Sleep Political Cannabinoid Science ~ New on the Bryan William Brickner Blog 2Health News:3M Releases New VHB™ Thin Foam Tapes as the Ultimate Electronics Bonding Solution 2Health News:3M Releases New VHB™ Thin Foam Tapes as the Ultimate Electronics Bonding Solution 3Health News:Royal Flush Havanese Offers Tops On the Importance of Restraining Dogs In Cars 2Health News:Royal Flush Havanese Offers Tops On the Importance of Restraining Dogs In Cars 3
... , The 10th Annual Conference and Exposition of ... Society for Human Resource Management --HR: Building Bridges to Success" in ... July 23-24 , , ... that employee wellness programs that help workers lose weight or quit smoking, for instance, ...
... MUMBAI, July 23 , ... Activity by the Clinical Investigator Dr. A Bhattacharya Working,at the GG ... - Glenmark Not Only Acts as the Whistle-Blower but Also ... After receiving approval from the Drug Controller General of India(DCGI),for ...
... 23 /PRNewswire-Asia-FirstCall/ -- 3SBio Inc.,(Nasdaq: SSRX ), ... and marketing biopharmaceutical,products, today announced that it will release ... after the US market closes on Tuesday,August 11, 2009. ... 3SBio,s senior management will host a,conference call at 5:00 ...
... ... classes. As a special promotion eMindful is offering unlimited classes for the month of ... yoga practice, or has wanted to explore the health benefits of yoga, to participate at ... ...
... ... dentist Dr. Robert L. Williamson one of America,s Top Dentists. , ... Raleigh, North Carolina (PRWEB) July 23, 2009 -- For ... award for being one of the top dentists in the United States. The Consumer,s Research ...
... ... top Orthopedic Surgeons in the greater Atlanta metro area for the second consecutive time. ... skilled, exceptional, and ,most-trusted, sports medicine specialist. , ... Atlanta, GA (PRWEB) July 23, 2009 -- Spero G. Karas M.D. ...
Cached Medicine News:Health News:Employee Wellness Programs Demonstrate Positive Return on Investment for Businesses 2Health News:Employee Wellness Programs Demonstrate Positive Return on Investment for Businesses 3Health News:Glenmark Brings to the Notice of the Authorities Irregularities of the Clinical Investigator at its Jamnagar Site in Gujarat 2Health News:3SBio Inc. to Report 2009 Second Quarter Earnings on August 11, 2009 2Health News:3SBio Inc. to Report 2009 Second Quarter Earnings on August 11, 2009 3Health News:eMindful.com Launches Live, Interactive Online Yoga Classes 2Health News:eMindful.com Launches Live, Interactive Online Yoga Classes 3Health News:Dr. Robert L. Williamson III Once Again Selected As One of America's Top Dentists 2Health News:Atlanta Sports Medicine Doctor Spero Karas Wins 'Atlanta's Top Doctors' Honor Again 2Health News:Atlanta Sports Medicine Doctor Spero Karas Wins 'Atlanta's Top Doctors' Honor Again 3
(Date:9/29/2014)... SAN DIEGO , 29 septembre ... désignée Daiichi Sankyo) (TSE : 4568) et Ambit Biosciences ... d,un accord de fusion définitif en vertu duquel ... actions ordinaires en circulation d,Ambit Biosciences à 15 ... d,une offre publique d,achat qui sera suivie d,une ...
(Date:9/29/2014)...  Bob Pack, who lost his two young children ... Medical Association to immediately cease airing a television ad ... Mercury News called "shamelessly deceptive" and of which the ... believe about the measure is wrong." ... that doctors check California,s existing ...
(Date:9/29/2014)... Sept. 29, 2014  Volcano Corporation (Nasdaq: ... improving patient and economic outcomes on a global ... coronary and peripheral visualization, physiology diagnostics and therapies, ... Board of Directors from Engaged Capital, LLC.  The ... Volcano welcomes the perspectives of its ...
Breaking Medicine Technology:Daiichi Sankyo va acquérir Ambit Biosciences 2Daiichi Sankyo va acquérir Ambit Biosciences 3Daiichi Sankyo va acquérir Ambit Biosciences 4Daiichi Sankyo va acquérir Ambit Biosciences 5Daiichi Sankyo va acquérir Ambit Biosciences 6Daiichi Sankyo va acquérir Ambit Biosciences 7Daiichi Sankyo va acquérir Ambit Biosciences 8Daiichi Sankyo va acquérir Ambit Biosciences 9Father Calls On CA Medical Assn To Pull TV Ad Called "Jaw-Droppingly Deceptive" and "Baloney" By LA Times & "Shamelessly Deceptive" By San Jose Mercury News, Says Consumer Watchdog Campaign 2Father Calls On CA Medical Assn To Pull TV Ad Called "Jaw-Droppingly Deceptive" and "Baloney" By LA Times & "Shamelessly Deceptive" By San Jose Mercury News, Says Consumer Watchdog Campaign 3Father Calls On CA Medical Assn To Pull TV Ad Called "Jaw-Droppingly Deceptive" and "Baloney" By LA Times & "Shamelessly Deceptive" By San Jose Mercury News, Says Consumer Watchdog Campaign 4Father Calls On CA Medical Assn To Pull TV Ad Called "Jaw-Droppingly Deceptive" and "Baloney" By LA Times & "Shamelessly Deceptive" By San Jose Mercury News, Says Consumer Watchdog Campaign 5Volcano Issues Statement Regarding Letter From Engaged Capital 2Volcano Issues Statement Regarding Letter From Engaged Capital 3
... studied the treatment of pregnant women with hepatitis B virus ... study concluded that both the mothers benefited from treatment and ... weeks postbirth. The study presenter and co-investigator Calvin ... as hepatitis B is difficult to eradicate and currently there ...
... POINT, Calif., Nov. 1, 2010 The Global ... organization that aims to raise awareness about the ... 7,000 Bracelets for Hope™ campaign. The 7,000 Bracelets ... to an estimated 7,000 different chronic, life-threatening and ...
Cached Medicine Technology:Telbivudine Given to Mothers With Hepatitis B Reduces Infection Rate in Infants 2Telbivudine Given to Mothers With Hepatitis B Reduces Infection Rate in Infants 37,000 Bracelets For Hope™ - A Rare Disease Awareness Campaign 27,000 Bracelets For Hope™ - A Rare Disease Awareness Campaign 3
... Aplicare's Saturated Swabsticks are packaged ... Each 4 inch Swabstick is saturated ... solution. Each package is terminally sterilized, ... the patient. It acts as a ...
... Antiseptic Antibacterial that does not ... 30 seconds, destroys over 99% ... for cleansing of minor wounds, ... disinfection of personal utensils and ...
... professional degerming, pre-op and post-op procedures. ... quaternary and substituted phenolic active ingredients ... and surfactants. Unprecedented efficacy on all ... 30 seconds. Techni-Care represents a new ...
Aplicare's disposable 1-ounce pouches are designed for individual application and are ideal for reducing waste. They are used in nursing homes, home healthcare settings, blood banks, laboratories, em...
Medicine Products: