Navigation Links
August 2009 Geology and GSA Today media highlights
Date:7/31/2009

lly to be the warmest period in Earth's history within the past 25 million years, saw a major shift in climate from global warming to cooling. This reversal of climatic warming has proven difficult to understand because of the limited range of available records. The first records of this time interval from the Congo Fan, West Africa, may shed light on the events preceding the major cooling at 14 million years ago. The results of Kender et al. reveal two acidification events in the deep sea off West Africa about 16 and 15.5 million years ago, coincident with massive flood basalt release in the Columbia River basin, USA. The Columbia River Flood Basalts represent the largest group of eruptions to occur on Earth since the Paleogene, over 50 million years ago, and Kender et al. now suggest that they had a significant effect on the climate at this time. The acidification events, which dissolved carbonate organisms on the seafloor, probably resulted from the accumulation of dead organic matter on the seafloor. Stronger offshore winds and increased primary productivity in the surface ocean off the west coast of Africa is likely to account for the accumulation and burial of this organic matter, which ultimately removed CO2 from the atmosphere, leading to long-term cooling. The implications of this study are that Columbia River volcanism likely triggered climatic cooling by sulphuric acid-induced volcanic winters, which would have increased the tradewinds off West Africa and, in turn, fertilized the ocean by transporting more nutrients such as sulphates to the ocean. Large extinctions in deep-sea organisms (benthic foraminifera) associated with this time interval imply that increasing ocean productivity may have dramatic consequences for ocean ecology.


A record of rapid Holocene climate change preserved in hyrax middens from southwestern Africa
B.M. Chase et al., Arid Environmental Systems Research Group, School of Geography and the Environm
'/>"/>

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 11 12 13 14 15

Related biology news :

1. USGS news: August science picks
2. August LabBits: A media tip sheet from the MBL in Woods Hole
3. AGU journal highlights -- August 6, 2008
4. Story tips from the US Department of Energys Oak Ridge National Laboratory, August 2008
5. Highlights from the August 2008 Journal of the American Dietetic Association
6. August 2008 Geology and GSA Today media highlights
7. BioScience tip sheet July/August 2008
8. Geoscientists meet to discuss Rocky Mountain geology
9. April 2009 Geology and GSA Today media highlights
10. February 2009 Geology and GSA Today media highlights
11. January GEOLOGY media highlights
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... that let nerve cells send out electrical signals, Johns ... tactic that may offer a new way to protect ... responsible way. , Their findingthat naturally occurring insect ... for a closely related onesuggests that insecticides can be ... like bees. A summary of the research, led by ...
(Date:7/10/2014)... Colo. , June 27, 2014  The ... the National Institute of Standards and Technology (NIST) ... of its academic research and forensic science expert ... The Board is an element of the NIST,s ... members are among the first appointments made to ...
(Date:7/10/2014)... SPRINGS, Florida , July 1, 2014 ... wallets pave way for convenience and improved security: NXT-ID, Inc. ... Inc. (NASDAQ: GOOG ), Apple Inc. (NASDAQ: ... and MasterCard Corporation (NYSE: MA) NXT-ID, Inc., (OTCQB: NXTD) ... is pleased to announce that the second series of 30 ...
Breaking Biology News(10 mins):Potent spider toxin 'electrocutes' German, not American, cockroaches 2Potent spider toxin 'electrocutes' German, not American, cockroaches 3Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 2Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 2Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 4Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 5
... 2009A research team including Serge Rivest of University Laval,s Faculty ... cells that limits brain damage after a stroke. The study ... Medicine . Laboratory experiments showed that three days after ... larger in mice without regulatory T (Treg) cells than in ...
... 2009 A new study by researchers at Princeton ... has found that global climate change may lead to ... western United States, which could create unprecedented ecological restoration ... the same time, global warming may enable other invasive ...
... 2009 Designed to inspire innovative ideas for environmentally-friendly ... Smart Gear Competition with a call for new designs ... species in fishing gear. The competition is open to ... $57,500 in prizes. "Bycatch is one of the ...
Cached Biology News:Researchers identify a cell type that limits stroke damage 2Climate change's impact on invasive plants in Western US may create restoration opportunities 2Climate change's impact on invasive plants in Western US may create restoration opportunities 3Climate change's impact on invasive plants in Western US may create restoration opportunities 4WWF seeks innovative solutions to bycatch through worldwide competition 2
(Date:7/10/2014)... 10, 2014 Understanding the need for ... lines, and the gap that currently exists in this ... its industry-leading portfolio of validated ion channel and GPCR ... cell lines, as ion channels control many critical physiological ... activity creates the potential to treat a variety of ...
(Date:7/10/2014)... Unraveling life’s mysteries can intrigue, amaze, and ... purchased a DNA test to unravel the ... a lifetime of memories, sharing, and closeness. In fact, ... genuinely brought the family closer together. , Recently, ... history and prior to taking the genetic ancestry ...
(Date:7/10/2014)... July 10, 2014 OMICS Group’s 5th ... during 18-20 August, 2014 at Double Tree by Hilton ... recent developments in Analytical & Bioanalytical research methods only ... Speaking on this occasion, Dr. Srinubabu Gedela, MD of ... conference is a remarkable one in bringing a unique ...
(Date:7/10/2014)... Senior supply chain management executives from over ... challenges of “Reducing Cost, Lead Time, & Defects in ... Describing the partnership of the Bio Supply Management Alliance ... ( SCMI) of the University of San Diego ... Kroc Institute of Peace and Justice in San Diego, ...
Breaking Biology Technology:Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 2Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4
... particle (VLP) vaccine progresses with study designed to select ... Novavax, Inc. (Nasdaq: NVAX ) announced ... trial of its virus-like particle (VLP) seasonal influenza vaccine. ... II randomized, placebo controlled clinical trial has been designed ...
... France, May 5 Novagali Pharma, a ... Company,s,Investigational New Drug Application (IND) to conduct ... for the treatment of glaucoma has been,granted ... (FDA). Catioprost(R) is a,topical ocular proprietary BAK-free ...
... FRANCISCO, Calif., May 5 Poniard Pharmaceuticals, Inc. (Nasdaq: ... Data Monitoring Committee (DMC), after review of available information ... recommends that the SPEAR (Study of Picoplatin Efficacy After ... is evaluating the efficacy and safety of picoplatin in ...
Cached Biology Technology:Novavax Announces Enrollment in the Second Phase II Study of its Seasonal Influenza VLP Vaccine Candidate 2Novavax Announces Enrollment in the Second Phase II Study of its Seasonal Influenza VLP Vaccine Candidate 3Novavax Announces Enrollment in the Second Phase II Study of its Seasonal Influenza VLP Vaccine Candidate 4Novagali Pharma Announces FDA Clearance of IND for Phase III of Catioprost(R), its Cationic Emulsion of Latanoprost in Patients With Glaucoma 2Independent Data Monitoring Committee Supports Continuation of Picoplatin Phase 3 SPEAR Registration Trial in Small Cell Lung Cancer 2Independent Data Monitoring Committee Supports Continuation of Picoplatin Phase 3 SPEAR Registration Trial in Small Cell Lung Cancer 3Independent Data Monitoring Committee Supports Continuation of Picoplatin Phase 3 SPEAR Registration Trial in Small Cell Lung Cancer 4Independent Data Monitoring Committee Supports Continuation of Picoplatin Phase 3 SPEAR Registration Trial in Small Cell Lung Cancer 5
... gene from Thermus aquaticus (strain YT1) ... coli, then highly purified to produce ... in the amplification and sequence testing ... of the Taq DNA polymerase has ...
Rabbit polyclonal to hnRNP-U...
... (RNase-free) (E.C. 3.1.21.1) is a nonspecific endonuclease ... It functions by hydrolyzing phosphodiester linkages, producing ... a 3'-hydroxyl group. Ambion's RNase-free DNase I ... is recommended to degrade DNA in the ...
... a unique β-agarose digesting enzyme developed at ... DNA and RNA from low melting point ... TBE, MOPS, or phosphate buffers. The gel ... TBE, MOPS, and phosphate electrophoresis buffers or ...
Biology Products: