Navigation Links
Poisonous Gas Caused Mass Extinction

The largest ever mass extinction on earth may have been triggered by poisonous volcanic gas which erupted in Siberia 250 million years ago // , according to a new research. This must have happened before dinosaurs came into existence, towards the Permian era's end, when over two-thirds of amphibians and reptiles were wiped out.

Possibilities like a deep sea methane release, an asteroid hitting the earth, or a greenhouse effect were contemplated by scientists as reasons for the mass extinction.

According to Discovery News, the eruption was the earth's biggest outpouring as the crust split and torrents of lava were released. They covered vast swaths of land in present-day Siberia and created the Siberian Traps, a large area of igneous rocks around the city of Tura.

New evidence for the volcanic gas hypothesis comes from a unique set of molecules preserved in rocks from the Dolomite mountains in Italy. Dating from the time of the extinction, the molecules are the remains of polysaccharides, large sugar-based structures common in plants and soil. The chemistry of the rocks revealed that although the polysaccharides are remains of marine sediments, they are derived from land, supporting the theory that a massive soil erosion resulting from destruction of land vegetation caused them to end up in the sea.

The excessive supply of soil materials to the oceans provides a direct link between terrestrial and marine ecological crises, suggesting that the ecosystem collapse on land could have contributed to the end-Permian marine extinctions.

The terrestrial ecosystem was the first to suffer. The continent-wide nature of the event implies that it was caused by something in the atmosphere, Sephton said. The soil crisis could have caused a worldwide expanse of uninhabitable low-oxygen conditions in shallow marine waters, a condition similar to the oxygen-depleted waters found today in the Gulf of Mexico's dead zone, said
'"/>




Page: 1 2

Related medicine news :

1. Poisonous Parkinsons molecule discovered
2. Caution: Apricot Seeds May Be Poisonous
3. Hong Kong Citizens Fear over Poisonous Vegetables in Local Markets
4. Investigators Find Poisonous Chemicals In Four More Drugs In China
5. Lakhs of Indians Exposed to High Levels of Poisonous Gases
6. Four of Family Died After Consuming Poisonous Mushrooms
7. Lead With a Poisonous Electron Shield
8. Antibiotics Dangerous for Diarrhoea in Children Caused by E.Coli
9. Albendazole Effective In Reducing Seizures Caused By A Common Parasite
10. Birth Defects Caused By Drugs Used For Epilepsy
11. Alzheimers Disease Caused By Insulin Increase
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Poisonous Gas Caused Mass Extinction

(Date:7/25/2014)... Mateo, CA (PRWEB) July 25, 2014 ... an upcoming episode of Innovations with Ed Begley Jr, ... and show times TBA. , For more than four ... the Bay Area community through its residential alcohol and ... will educate on Project Ninety's humble idea and how ...
(Date:7/25/2014)... July 25, 2014 Home Care Assistance ... provider of non-medical, in-home senior care, is weighing in ... be supporting senior-led projects in Alberta through their New ... for Seniors Program is a federal grants and contributions ... who make a difference in the lives of others ...
(Date:7/25/2014)... 25, 2014 The Futon Shop ... Futon Sale. The Futon Shop has been around since 1976 ... has grown from a few handmade futon mattresses a month, ... of futon mattresses. , The Futon Shop futon mattresses ... the desire to sleep on natural fibers was a growing ...
(Date:7/25/2014)... ZeptoMetrix™ Corporation (ZMC), an industry ... products and services for infectious disease diagnostic development, ... RP Multimarker Controls - MDZ001 . , ... CE marked, unassayed external run control intended for ... RP Multimarker Controls - MDZ001 has been specifically ...
(Date:7/25/2014)... NC (PRWEB) July 25, 2014 Researchers at ... the results of a study indicating that a man-made material ... mesothelioma among workers exposed to asbestos. Surviving Mesothelioma has just ... to read it now. , The French scientists ... developed mesothelioma between 1987 and 2006. One group of ...
Breaking Medicine News(10 mins):Health News:Project Ninety to be Featured on Innovations with Ed Begley, Jr. 2Health News:Project Ninety to be Featured on Innovations with Ed Begley, Jr. 3Health News:Home Care Assistance – Halton/Peel Region Weighs in on Alberta Communities Receiving Funding to Support Seniors and Senior Caregivers 2Health News:Home Care Assistance – Halton/Peel Region Weighs in on Alberta Communities Receiving Funding to Support Seniors and Senior Caregivers 3Health News:Organic Mattress Manufacturer Celebrates 38 Years Of Being In Business 2Health News:Organic Mattress Manufacturer Celebrates 38 Years Of Being In Business 3Health News:ZeptoMetrix™ Corporation (ZMC) Releases FDA Class 1 Exempt, IVD and CE Labeled NATtrol™ RP Multimarker Controls 2Health News:New Study Shows Mesothelioma Risk is Higher in Workers Exposed to Man-Made Insulator, According to Surviving Mesothelioma 2Health News:New Study Shows Mesothelioma Risk is Higher in Workers Exposed to Man-Made Insulator, According to Surviving Mesothelioma 3
... in Central Pennsylvania Earn Designation, CAMP HILL, ... to announce the recognition of Penn State Hershey ... Centers for Complex and Rare,Cancers., Complex and ... cases each year, making it difficult for patients ...
... Alexion,Pharmaceuticals, Inc. (Nasdaq: ALXN ) today announced that ... present at,two upcoming investor conferences, one sponsored by Cowen ... Bell will present at the Cowen and Company 27th ... on Tuesday, March 18, 2008.,Dr. Bell will also present ...
... Celebration and ... NEW YORK, March 11 Autism Speaks, the world,s ... to mark the inaugural celebration of World Autism Awareness ... disorder,affecting millions of individuals and families around the world. ...
... Children,s Hospitals to Deliver Specialized Pediatric Patient Education at ... ... BETHESDA, Md. and WILMINGTON, Del., March 11 ,GetWellNetwork, Inc., ... the largest provider of online pediatric health,information, today announced a ...
... fight against increasing obesity, according to internationally regarded expert ... , Its becoming well known that there are high ... has significant consequences for chronic diseases, both physical and ... known is that not only blood vessels to the ...
... Appointment broadens reach of expanding care and care ... the,Brentwood, Tenn.-based provider of care management for the ... care policy expert,Stuart Altman has been appointed to ... expert care and care management company focused on,improving ...
Cached Medicine News:Health News:Highmark Blue Shield and National Association Name Area Hospitals as Blue Distinction Centers for Complex and Rare Cancers 2Health News:Highmark Blue Shield and National Association Name Area Hospitals as Blue Distinction Centers for Complex and Rare Cancers 3Health News:Autism Speaks to Celebrate World Autism Awareness Day with Day-Long Series of International Events on April 2 2Health News:Autism Speaks to Celebrate World Autism Awareness Day with Day-Long Series of International Events on April 2 3Health News:Autism Speaks to Celebrate World Autism Awareness Day with Day-Long Series of International Events on April 2 4Health News:GetWellNetwork and KidsHealth Partner to Empower Pediatric Patients and Their Families 2Health News:GetWellNetwork and KidsHealth Partner to Empower Pediatric Patients and Their Families 3Health News:GetWellNetwork and KidsHealth Partner to Empower Pediatric Patients and Their Families 4Health News:Stuart Altman, Ph.D. Joins INSPIRIS Board of Directors 2Health News:Stuart Altman, Ph.D. Joins INSPIRIS Board of Directors 3
(Date:7/24/2014)... , July 24, 2014   AcelRx Pharmaceuticals, ... company focused on the development and commercialization of innovative ... today confirmed the PDUFA date for Zalviso remains July ... a rumor circulated online stating the Food and Drug ... 2014 there has been no notification to the company ...
(Date:7/24/2014)... Germany , and MARSEILLE, France ... , Exclusive global license from University of ... including next-generation sequencing (NGS) gene panels, for blood cancers  ... by new test, indicate favorable prognosis for patients with ... QIAGEN sees potential for developing companion diagnostics to guide ...
(Date:7/24/2014)... 24, 2014 Amgen (NASDAQ: AMGN ) ... results on Tuesday, July 29, 2014, after the close of ... a conference call with the investment community at 2 p.m. ... Robert A. Bradway , chairman and chief executive officer, and ... audio of the conference call will be simultaneously broadcast over ...
Breaking Medicine Technology:AcelRx Pharmaceuticals Confirms July 27, 2014 PDUFA Date for Zalviso 2QIAGEN Adds Promising Genomic Biomarkers for Assessing Prognosis in Treatment of Blood Cancers to Personalized Healthcare Pipeline 2QIAGEN Adds Promising Genomic Biomarkers for Assessing Prognosis in Treatment of Blood Cancers to Personalized Healthcare Pipeline 3QIAGEN Adds Promising Genomic Biomarkers for Assessing Prognosis in Treatment of Blood Cancers to Personalized Healthcare Pipeline 4QIAGEN Adds Promising Genomic Biomarkers for Assessing Prognosis in Treatment of Blood Cancers to Personalized Healthcare Pipeline 5Amgen Announces Webcast of 2014 Second Quarter Financial Results 2
... CAESAREA, Israel, March 23, 2011 EndyMed ... use of multi-source radiofrequency for professional aesthetic treatments, announced ... on 3DEEP radiofrequency technology, "A novel method ... treatments". This article was published ...
... CLEVELAND, March 23, 2011 DATATRAK International, Inc. ... on global eClinical solutions for the clinical trials ... Information Association,s EuroMeeting. The 23rd Annual EuroMeeting will ... while evaluating the benefits new science and technologies ...
Cached Medicine Technology:EndyMed Medical's Novel Multi-Source Radiofrequency Device Enables Real Time Skin Impedance Measurements 2EndyMed Medical's Novel Multi-Source Radiofrequency Device Enables Real Time Skin Impedance Measurements 3DATATRAK to Attend DIA's 23rd Annual EuroMeeting 2
Operate with confidence. Autosuture is advancing the sate of both open and minimally invasive surgery by providing surgical tools that feel right, function right, and facilitate the right outcome eve...
Operate with confidence. Autosuture is advancing the sate of both open and minimally invasive surgery by providing surgical tools that feel right, function right, and facilitate the right outcome eve...
Operate with confidence. Autosuture is advancing the sate of both open and minimally invasive surgery by providing surgical tools that feel right, function right, and facilitate the right outcome eve...
Operate with confidence. Autosuture is advancing the sate of both open and minimally invasive surgery by providing surgical tools that feel right, function right, and facilitate the right outcome eve...
Medicine Products: