Navigation Links
First mass extinction linked to marine anoxia
Date:4/11/2012

The end-Ordovician mass extinction, killing roughly 86% of all marine species, is now linked to nutrient-driven anoxia in the global ocean. This marine catastrophe has previously been attributed to a cooling event of a warm Earth, as a glacier can be seen to grow on the South Pole, and to increased oxygen in the ocean. The cooling appears to be real, but from a hot to less hot greenhouse planet which not necessarily led to stress for the animals. Also, instead of increasing oxygen the resent results point towards severe lack of oxygen at depth in the ocean. The conclusion of ocean anoxia is inferred primarily from sulfur isotope data from sea floor sediments in three ocean basins worldwide. The new data overthrows century old knowledge of why marine animals met their first of three major challenges, and highlights how evolution of life is tightly coupled to the dynamics of oxygen in the ocean.


'/>"/>
Contact: Emma Hammarlund
emma@biology.sdu.dk
456-550-2739
University of Southern Denmark
Source:Eurekalert

Page: 1

Related biology news :

1. New technology tracks sparrow migration for first time from California to Alaska
2. FirstMark Exhibiting at the Inaugural Atlanta Clinical Cardiology Update
3. FirstMark Announces New Hire Jay Houtman as Southeast Regional Sales Manager
4. First complete full genetic map of promising energy crop
5. Ottawa researchers to lead world-first clinical trial of stem cell therapy for septic shock
6. American College of Rheumatology releases first classification criteria for polymyalagia rheumatica
7. First model of how buds grow into leaves
8. Research reveals first evidence of hunting by prehistoric Ohioans
9. Kessler Foundation implements Ekso Bionics first commercial robotic exoskeleton
10. ORNL completes first phase of Titan supercomputer transition
11. Researchers develop worlds first biodegradable joint implant
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/18/2017)... a global expert in SoC-based imaging and computing solutions, has developed ... the company,s hybrid codec technology. A demonstration utilizing TeraFaces ® , ... showcased during the upcoming Medtec Japan at Tokyo Big Sight April ... Vegas Convention Center April 24-27. ... Click here for an image of the M820 ...
(Date:4/13/2017)... , April 13, 2017 According to a new ... Authentication, Identity Analytics, Identity Administration, and Authorization), Service, Authentication Type, Deployment Mode, ... IAM Market is expected to grow from USD 14.30 Billion in 2017 ... (CAGR) of 17.3%. ... MarketsandMarkets Logo ...
(Date:4/11/2017)... April 11, 2017 No two people ... at the New York University Tandon School of ... have found that partial similarities between prints are ... in mobile phones and other electronic devices can ... The vulnerability lies in the fact that fingerprint-based ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... ... announced the three Winners and six Finalists of the 2017 Blavatnik Regional Awards ... the Blavatnik Family Foundation and administered by the New York Academy of Sciences ...
(Date:10/12/2017)... , ... October 12, 2017 ... ... announces publication of a United States multicenter, prospective clinical study that demonstrates ... point-of-care diagnostic test capable of identifying clinically significant acute bacterial and viral ...
(Date:10/12/2017)... ... October 12, 2017 , ... AMRI, a global ... industries to improve patient outcomes and quality of life, will now be offering ... being attributed to new regulatory requirements for all new drug products, including the ...
(Date:10/11/2017)... (PRWEB) , ... October 11, 2017 , ... ... Foundation President Andi Purple announced Dr. Suneel I. Sheikh, the co-founder, CEO ... ASTER Labs ), Inc. has been selected for membership in ARCS Alumni ...
Breaking Biology Technology: