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:7/11/2014)... The increased risk of kidney injury related to the ... the mass of HES molecules, according to a report ... the International Anesthesia Research Society (IARS). , The "total ... HES on cultured human renal proximal tubule cells (PTCs), ... colleagues of University Hospital Wrzburg, Austria. Other factorssuch ...
(Date:7/11/2014)... Research and Markets has announced the addition ... Analysis Size Share Growth Trends and Forecast to 2019" ... http://photos.prnewswire.com/prnh/20130307/600769 The rising number of ... high level security in both private and public sector. ... and passwords, tokens etc. are vulnerable to attacks. Biometrics ...
(Date:7/10/2014)... , June 27, 2014  Pomerantz LLP has ... Inc. ("Provectus" or the "Company")(NYSE-MKT: PVCT) and certain ... United States District Court, Middle District of ... behalf of a class consisting of all persons ... securities between December 17, 2013 and May 22, ...
Breaking Biology News(10 mins):In lab studies, hydroxyethyl starch has direct harmful effects on kidney cells 2International Biometrics Technology Market - Industry Analysis Size Share Growth Trends and Forecast to 2019 2SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Provectus Biopharmaceuticals, Inc. and Certain Officers - PVCT 2SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Provectus Biopharmaceuticals, Inc. and Certain Officers - PVCT 3
... Scientists found that in 14 independent studies, the yields ... other biofuel feedstocks, such as corn, soybean, sorghum, and ... not yet been evaluated exist. According to bioenergy ... a low risk of unintended land use change. Biomass ...
... have developed a novel system for delivery of growth ... diabetic foot ulcers. In their work published in ... of Sciences , the team from the MGH Center ... keratinocyte growth factor (KGF), a protein known to play ...
... year,s Deepwater Horizon oil spill, nearly 800,000 gallons of chemical ... coming out of the wellhead nearly one mile deep in ... assess how well the strategy worked at breaking up oil ... and her colleagues report that a major component of the ...
Cached Biology News:Growth-factor-containing nanoparticles accelerate healing of chronic wounds 2First study of dispersants in Gulf spill suggests a prolonged deepwater fate 2First study of dispersants in Gulf spill suggests a prolonged deepwater fate 3First study of dispersants in Gulf spill suggests a prolonged deepwater fate 4
(Date:7/10/2014)... OAKS, Calif., July 10, 2014   Ceres, Inc ... and seed company, announced today financial results for the ... update on its business. Ceres reported that ... in product performance this growing season in Brazil, which ... affected the company,s sorghum evaluation areas for part of ...
(Date:7/10/2014)... Using microscopic polymer light resonators that expand in ... Quantum Photonics Laboratory have developed new optical sensors ... Optical sensors are ideal for detecting trace gas ... lightweight nature, and immunity to electromagnetic interference. , ... before, the MIT team conceived an extremely sensitive, ...
(Date:7/10/2014)... Columbia researchers have observed the fractional quantum Hall effect ... of matter can be tuned by an electric field. ... occur when electrons confined to thin sheets are exposed ... collective behavior where thousands of individual electrons behave as ... this effect is well established, many details of this ...
(Date:7/10/2014)... shelled out for crude 3-D glasses, polarized glasses, ... These basic devices, used to trick the brain ... be rendered obsolete with the introduction of new ... , TAU doctoral students Yuval Yifat, Michal Eitan, ... based on nanoantennas that could be used for ...
Breaking Biology Technology:Ceres Announces Fiscal Third Quarter 2014 Financial Results 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 3Ceres Announces Fiscal Third Quarter 2014 Financial Results 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 5Ceres Announces Fiscal Third Quarter 2014 Financial Results 6Ceres Announces Fiscal Third Quarter 2014 Financial Results 7Ceres Announces Fiscal Third Quarter 2014 Financial Results 8Ceres Announces Fiscal Third Quarter 2014 Financial Results 9Swell new sensors 2Columbia researchers observe tunable quantum behavior in bilayer graphene 2Columbia researchers observe tunable quantum behavior in bilayer graphene 3Projecting a 3-dimensional future 2Projecting a 3-dimensional future 3
... St. Joseph,s Hospital and Medical Center and the University ... agreement to create the Valley Fever Center based at the ... who has more than 30 years of experience in treating ... of Excellence in Tucson in 1996. The center ...
... At the Heart Failure Society of America,s 15th Annual ... System, announced that B-type natriuretic peptide (BNP) may have ... signs of decompensation in advance of acute presentations.   ... and sponsored by Alere Inc., is the first of ...
... Biotherapeutics (OTC.BB: NWBO) (NORTHWEST BIO) today announced that ... Cancer Immunotherapy: A Long-Awaited Reality Conference on Thursday, ... Medicine in New York City.  The single-day conference ... stakeholders to engage in discussions, exchange information, and ...
Cached Biology Technology:St. Joseph's Hospital, University of Arizona Create Valley Fever Center in Phoenix 2HABIT Study Highlights Home BNP Testing May Allow for Earlier Interventions and Better Management of Heart Failure Patient 2HABIT Study Highlights Home BNP Testing May Allow for Earlier Interventions and Better Management of Heart Failure Patient 3NORTHWEST BIO Will Present at the Second Annual "Cancer Immunotherapy: A Long Awaited Reality Conference" at the New York Academy of Medicine, October 6, 2011 2NORTHWEST BIO Will Present at the Second Annual "Cancer Immunotherapy: A Long Awaited Reality Conference" at the New York Academy of Medicine, October 6, 2011 3NORTHWEST BIO Will Present at the Second Annual "Cancer Immunotherapy: A Long Awaited Reality Conference" at the New York Academy of Medicine, October 6, 2011 4
... an 18 amino acid synthetic peptide whose sequence corresponds to residues ... is (amino to carboxy terminus): M(1) - A - S - ... - S - P - R - D - A - ... may be used for neutralization and control experiments with the polyclonal ...
... Bisulfite Kit enables complete conversion of ... than 6 hours. The highly sensitive ... DNA degradation and a spin-column-based purification ... and reliable results for all downstream ...
... from high throughput synthesis are new and unique ... These products provide a large number (from hundreds ... in a microtube as a mixture or in ... sequence. This is a custom product so RNA ...
... is a fixative useful for routine procedures. ... is stable and will decalcify small bone ... can be stained successfully with most stains, ... stabilizes red blood cell membranes and cosinophil ...
Biology Products: