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 the researchers.

Edited (ANI)
'"/>




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:


(Date:12/8/2016)... ... December 08, 2016 , ... ... from offices headquartered in Jefferson County, is announcing the launch of a charity ... , The number of homeless women and children in Birmingham has grown steadily ...
(Date:12/8/2016)... ... December 08, 2016 , ... The Compretta Insurance Agency, a ... clients in and around the Hancock County area, is announcing the launch of a ... Pantry. , The Hancock County Food Pantry has worked for more than 30 years ...
(Date:12/7/2016)... ... 2016 , ... DrugDev again demonstrated its dedication to reducing the ... early adopters completing EU-U.S. Privacy Shield Certification from the U.S. Department of Commerce. ... of the Atlantic with a mechanism to comply with EU data protection requirements when ...
(Date:12/7/2016)... ... 07, 2016 , ... Kenall Manufacturing, a leader in sealed healthcare lighting for ... is a multi-function, sealed, LED luminaire that meets the needs of everyone in the ... needed. , A 2’ x 4’ model features four modes: reading, ambient, ...
(Date:12/7/2016)... ... December 07, 2016 , ... Wavelink, an industry ... Control through a new partnership with Splashtop Inc. This remote control for Android ... to help businesses maximize their uptime and productivity. , Wavelink offers powerful enterprise ...
Breaking Medicine News(10 mins):
(Date:12/8/2016)... 2016  Hanson Research, an innovative leader in ... diffusion testing instruments for the pharmaceutical industry, announced ... Inc. ("Teledyne"). The move is designed to deepen ... instruments, as well as expand resources for further ... and services. Logo - http://photos.prnewswire.com/prnh/20161208/446988LOGO ...
(Date:12/8/2016)... , Dec. 8, 2016  Haemonetics Corporation (NYSE: ... (Donor Management System), an innovative software suite designed to help ... The launch of NextGen DMS 4 improves core features ... the cost per liter of plasma collected, enhancing quality and ... center operations. ...
(Date:12/8/2016)...   Mederi Therapeutics Inc . has announced regulatory approval by CFDA and product ... chronic gastroesophageal reflux disease (GERD). Continue Reading ... ... Congress of Digestive Endoscopy, by Professor Jun Liu, Director of Endoscopy at Wuhan Union ... "We are very pleased that Mederi products are ...
Breaking Medicine Technology: