Navigation Links
After long-ago mass extinction, global warming hindered species' recovery
Date:11/5/2012

s to the man-made greenhouse gases we have today. So our findings have the power to inform us about modern climate change."

The researchers studied chemical elements in samples of limestone taken from northern Iran, which was a shallow tropical ocean during the Early Triassic period, from about 252 to 248 million years ago.

The study provides the first-ever link between the elements strontium and carbon that were deposited in the rock at that time. Both changed in ways that indicate dramatic climate change was taking place in the world above.

When the rock they studied was being formed 250 million years ago, all of Earth's continents were joined together in a super-continent called Pangea. Up to 90 percent of marine species and 70 percent of land vertebrates had just been killed by massive volcanic eruptions from the region now called the Siberian Traps, which covers much of northern Asia.

What caused the eruptions is not certain.

The consequences are certain, however: the volcanoes spewed enough molten rock to cover millions of square miles, and enough greenhouse gases to dramatically increase Earth's temperature.

The limestone used in this new study came from collaborators in Austria, who retrieved it from a gorge in the region of Zal, near the northern Iranian border.

The Austrian researchers measured the amount of carbon in the rock, and confirmed that Earth's natural carbon cycle and climate were unstable for 5 million years after the Great Dying.

Colleagues at the University of Cincinnati, who worked with the Austrian researchers, demonstrated that large amounts of sediment were collecting in the ocean. They then sent the samples to Ohio State, where Sedlacek and Saltzman measured the ratio of two forms of strontium, strontium-87 and strontium-86. This ratio is an indicator of how much bedrock was being weathered away from the Earth's surface.

They found that as the carbon level
'/>"/>

Contact: Pam Frost Gorder
gorder.1@osu.edu
614-292-9475
Ohio State University
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. 1 year after Fukushima
2. AGU: Venice hasnt stopped sinking after all
3. Black flies may have a purpose after all
4. Estrogen hormone reveals protective ability after traumatic brain injury
5. Obstructive sleep apneas damage evident after 1 month
6. Scientists read the ash from the Icelandic volcano 2 years after its eruption
7. Microbial communities shifted dramatically after Deepwater Horizon spill
8. Regenerated cells may restore vision after corneal dysfunction
9. Cinega de Santa Clara unchanged after pilot run of Yuma Desalting Plant
10. Promiscuous squid fatigued after mating
11. Ethylene of no effect - why peppers do not mature after picking
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/17/2014)... for the first time how bacteria can grow directly ... the opportunity to get tremendous insights into bacteria behavior ... discovered the bacterial growth in chronic lung infections among ... by the immune cells. The researchers discovered the immune ... bacteria, forcing the bacteria to switch to a much ...
(Date:10/16/2014)... conventional thinking on how the bowel lining develops and, ... bowel cancer starts. , The researchers produced evidence that ... ,crypts, that are a feature of the bowel lining, ... cancer development, a controversial finding as scientists are still ... imaging technologies, Dr Chin Wee Tan and Professor Tony ...
(Date:10/15/2014)... Oct. 15, 2014 Sandata Technologies, LLC, ... and community-based care, today announced it released a ... Santrax® Electronic Visit Verification™ Solution (EVV™)  for Quality ... home health company founded in 1996 and has ... The study details the challenges ...
Breaking Biology News(10 mins):Scientists opens black box on bacterial growth in cystic fibrosis lung infection 2Cryptic clues drive new theory of bowel cancer development 2Sandata Announces Case Study with Quality Care Services, Inc. 2
... Taiwan and Japan and led by University of Illinois scientists ... times more active in killing tumor cells than similar drugs ... this week in the Journal of the American Chemical ... of drugs called bisphosphonates. These compounds were originally developed to ...
... Researchers at the Tulane University School of Medicine, ... protease inhibitors (PIs), such as nelfinavir included in ... treatment of HIV-1 patients, induce deleterious effects on ... They report a significant decrease in the levels ...
... researcher has discovered dozens of species of jumping spiders that ... section of the evolutionary tree previously thought to be sparse. ... world except Antarctica. Capable of jumping 30 times their body ... households. They come in many shapes and sizes, some resembling ...
Cached Biology News:New drug agent knocks out multiple enzymes in cancer pathway 2HIV-1 protease inhibitor induced oxidative stress in pancreatic B-cells: thymoquinone protection 2New species of spiders discovered by UBC scientist in Papua New Guinea 2
(Date:10/25/2014)... 2014 ViaDerma, Inc ... devoted to bringing new products to market, is ... ViaDerma has developed an innovative, patent-pending dual carrier ... transfer of pharmaceutical active ingredients to penetrate the ... localized therapy. The transdermal delivery method also overcomes ...
(Date:10/25/2014)... (PRWEB) October 24, 2014 This ... PHA, PBS, Starch Based Plastics, Regenerated Cellulose, PCL), ... Global Trends and Forecasts to 2019”, defines and ... analysis and forecast of its global volume and ... 54 Figures spread through 178 Slides and in-depth ...
(Date:10/25/2014)... 24, 2014 Oramed Pharmaceuticals Inc. ... focused on the development of oral drug delivery systems, ... will present at FireRock Capital,s Micro-Cap Conference. ... Conference ,Date: Tuesday, October 28, 2014 ,Time: 9:15am EST ... York City , About The ...
(Date:10/25/2014)... 24, 2014 ... has announced the addition of the  "The ... Other 2-D Nanomaterials "  report to their ... ,CNTs and graphene are the strongest, lightest ... with a performance-per-weight greater than any other ...
Breaking Biology Technology:ViaDerma, Inc. Announces Plans to Pursue Out-Licensing Partnerships in 2015 2ViaDerma, Inc. Announces Plans to Pursue Out-Licensing Partnerships in 2015 3Biodegradable Plastics Market Projected to $3,476.87 Million by 2019 - Report by MarketsandMarkets 2Biodegradable Plastics Market Projected to $3,476.87 Million by 2019 - Report by MarketsandMarkets 3Biodegradable Plastics Market Projected to $3,476.87 Million by 2019 - Report by MarketsandMarkets 4Oramed to Present at the FireRock Annual Micro-Cap Conference 2Oramed to Present at the FireRock Annual Micro-Cap Conference 3The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 2The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 3The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 4
... , Key ... assay, , ... of one assay component to an SPA Imaging Bead in order to ... antibody enable the immobilization of rabbit secondary antibodies during the assay. The ...
... TE 70, TE 77, TE 70 PWR, TE 77 PWR , ... transfer results using low current and voltage with a minimal amount of buffer. ... with and without built-in power supplies to give maximum flexibility , ... from polyacrylamide gels in less than 1 h , ...
... Key words: ... LC-MS/MS • reversed-phase chromatography (RPC) • strong cation exchange (SCX) ... , ... brain tissue. The trypsin-digested tissue was separated by strong cation ...
Cached Biology Technology:Utilization of Donkey Anti-Rabbit PS SPA Imaging Beads in the quantitative measurement of cAMP in cells 2Utilization of Donkey Anti-Rabbit PS SPA Imaging Beads in the quantitative measurement of cAMP in cells 3Utilization of Donkey Anti-Rabbit PS SPA Imaging Beads in the quantitative measurement of cAMP in cells 4ECL Semi-dry Blotters 22D-LC analysis of phosphopeptides in brain tissue using Ettan MDLC and Finnigan LTQ 22D-LC analysis of phosphopeptides in brain tissue using Ettan MDLC and Finnigan LTQ 32D-LC analysis of phosphopeptides in brain tissue using Ettan MDLC and Finnigan LTQ 42D-LC analysis of phosphopeptides in brain tissue using Ettan MDLC and Finnigan LTQ 52D-LC analysis of phosphopeptides in brain tissue using Ettan MDLC and Finnigan LTQ 6
Src cDNA Expression Kit (wild type)...
1M stock solution (238mg/ml)...
Homogenizing Solution, 18ml Proteinase K - [50ug/l] 75 l...
Request Info...
Biology Products: