Navigation Links
October 2008 GEOLOGY and GSA TODAY media highlights
Date:9/25/2008

oscience, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada. Pages 771-774.

The Permian-Triassic boundary interval (circa 252 million years ago) saw unparalleled species loss in the marine realm, and biotic recovery was delayed relative to other mass extinctions. A major unresolved question has been about where the marine organisms that recovered from the extinction were housed. Trace fossils, which preserve the activity of organisms, are recorded from Early Triassic rocks found in western Alberta, northeast British Columbia, and the barren landscapes of the Canadian Arctic; they provide evidence for refuges from ongoing extinction pressures in the immediate aftermath of latest Permian mass extinction. These fossils present a record of ocean-bottom dwelling organisms and indicate locally well-oxygenated conditions in an ocean otherwise characterized by widespread anoxia. The habitable zone model of Beatty et al. proposes that a colonization window existed along ancient western Canadian shorelines that was controlled by aeration through wave action and enhanced by frequent storms. Within the habitable zone, latest Permian extinction levels are reduced and the recovery time is minimized, supporting the interpretation that oxygen stress was a major cause of the recovery delay from Earth's greatest extinction. It follows that the habitable zone provided the seed communities from which the marine realm was repopulated following a global return of well-oxygenated oceanic conditions.


Sulfidity controls molybdenum isotope fractionation into euxinic sediments: Evidence from the modern Black Sea
Nadja Neubert et al., Universitat Bern, Institut fur Geologie, Balzerstrasse 3, 3012 Bern, Switzerland. Pages 775-778. NSF funding received.

Molybdenum is a trace metal that is sensitive to redox (reduction/oxidation reaction) changes in the water column. It is used by biogeochemists who study changes within the ocean syste
'/>"/>

Contact: Christa Stratton
cstratton@geosociety.org
303-357-1093
Geological Society of America
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9 10

Related biology news :

1. October Geology and GSA Today media highlights
2. Story tips from the Department of Energys Oak Ridge National Laboratory, October 2007
3. October 2008 Biology of Reproduction highlights
4. September Geology and GSA Today media highlights
5. November GEOLOGY and GSA TODAY Media Highlights
6. December GEOLOGY and GSA TODAY media highlights
7. February Geology and GSA Today media highlights
8. March GEOLOGY and GSA TODAY media highlights
9. Geology and biology meet in the history of US southwestern desert surface waters
10. Beaded viruses and geology-inspired paintings show the art in science
11. July 2008 GEOLOGY and GSA Today media highlights
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/25/2014)... consume the healthcare community and remain priority ... To address the worldwide crisis of obesity ... global leaders in diabetes, epidemiology and public ... and development of diverse intervention programs in ... This book on "Global Health Perspectives in ...
(Date:7/25/2014)... diffusion tensor tractography (DTT), which is derived from ... for three motor tracts, such as the corticospinal ... became possible. The corticospinal tract is known to ... in the human brain. Several studies have reported ... herniation. In addition, some studies have demonstrated recovery ...
(Date:7/25/2014)... have detected an unknown interaction between microorganisms and salt. ... a droplet of salt water and is left to ... biomineralogical biosaline 3D morphologically complex formations, where they hibernate. ... The discovery was made by chance with a home ... Astrobiology journal and may help to find signs ...
Breaking Biology News(10 mins):What constitutes an effective response to the global 'diabesity' tsunami? 2Bacteria manipulate salt to build shelters to hibernate 2
... 2, 2014 EcoHealth Alliance, a nonprofit organization ... issues, and Bat Conservation International, which works to ... are joining forces in formal partnership. The organizations ... and public health programs that enhance outreach with ...
... N.C. A new Duke University-led study has documented dramatic, ... estuary. "The natural short-term variability in acidity ... global predictions for the ocean as a whole and may ... organisms, particularly shelled organisms that are especially susceptible to changes ...
... centuries as a pain reliever in Chinese medicine may be ... chronic pain. A key pain-relieving ingredient is a compound known ... plant Corydalis , a member of the poppy family, ... Press journal Current Biology on January 2. ...
Cached Biology News:EcoHealth Alliance and Bat Conservation International forge partnership to work on global bat conservation and public health issues 2Local factors cause dramatic spikes in coastal ocean acidity 2Plant used in Chinese medicine fights chronic pain 2
(Date:7/25/2014)... York (PRWEB) July 25, 2014 According ... Research, "Biological Drugs Market - Global Industry Analysis, Size, ... global biological drugs market is estimated at USD 161,056.5 ... a CAGR of 10.1% from 2014 to 2020, to ... 2020. , The biological drugs market is witnessing a ...
(Date:7/25/2014)... The Conferee Networking committee is pleased to ... These two-hour sessions provide a unique networking opportunity for ... discuss new techniques, or brainstorm new ideas in an ... for consideration is August 31, 2014, and instructions can ... committee will review the topics, and status notifications will ...
(Date:7/25/2014)... , July 25, 2014  Galmed Pharmaceuticals Ltd. (Nasdaq: ... focused on the development and commercialization of a once-daily, ... cholesterol gallstones, today announced financial results for the period ... Financial Summary: , Reported cash and cash equivalents ... $137,000 at December 31, 2013.  , Reported a ...
(Date:7/25/2014)... July 25, 2014 At the request ... granted a 60-day extension for the public comment period ... Rule for Model Aircraft established by Congress as part ... The 60-day extension establishes the new deadline for comments ... Department of Transportation/FAA notice published in the Federal Register ...
Breaking Biology Technology:Biological Drugs Market: Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2014 - 2020 2Biological Drugs Market: Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2014 - 2020 3Pittcon 2015 Announces Call for Topics for Conferee Networking Sessions 2Galmed Pharmaceuticals Reports First Half 2014 Financial Results 2Galmed Pharmaceuticals Reports First Half 2014 Financial Results 3Galmed Pharmaceuticals Reports First Half 2014 Financial Results 4Galmed Pharmaceuticals Reports First Half 2014 Financial Results 5Galmed Pharmaceuticals Reports First Half 2014 Financial Results 6FAA Grants Comment Extension at the Request of AMA 2
... Biopharmaceuticals,Inc. (Nasdaq: KERX ) will hold a conference ... to discuss the Third Quarter 2007 financial results.,Michael S. ... will,host the call. Keryx will announce its financial results ... prior to the call. In order to participate ...
... Positive Phase I Results for R1507, COPENHAGEN, October ... from a Phase I study of R1507 in patients,with ... a human,monoclonal antibody targeting the insulin-like growth factor receptor,(IGF-1R) ... Nine of 34 adult patients with solid tumors experienced ...
... Calif., Oct. 23 InVitria has released ... factor for cell culture,media outperforms transferrin and ... Because Lacromin is produced in a completely,animal-free ... over,animal-derived alternatives including bovine and human transferrin. ...
Cached Biology Technology:Keryx Biopharmaceuticals, Inc. to Hold Conference Call on Third Quarter 2007 Financial Results on Thursday, October 25, at 8:30 A.M. EDT 2Phase I Results Announced for R1507 From Genmab's Collaboration With Roche 2Phase I Results Announced for R1507 From Genmab's Collaboration With Roche 3InVitria's Animal Free Lacromin(TM) Provides a Cost-Effective Improvement Over Transferrin 2
in vitro Translation, Accessory Products...
... host strains are K-12 derivatives that have ... and glutathione reductase (gor) genes, which greatly ... Studies have shown that expression in Origami(DE3) ... another host even though overall expression levels ...
... ULTROSPEC 6300 (YELLOW), 1 EA. ... the demanding requirements of the Pharmacopoeia in ... with the benefits of being able to ... of 1.0 nm and excellent scanning capability., ...
PHOTOMAN DIRECT COPY CAMERA, 1 EA. Category: Nucleid Acid Detection Systems....
Biology Products: