Navigation Links
AGU journal highlights -- Sept. 6, 2007
Date:9/10/2007

he convergence zones southward shift. Additional variations in biogenic silica of equal magnitude were also found, suggesting that abrupt climate change could originate from within tropical systems.

Title:
Abrupt climate change in southeast tropical Africa influenced by Indian monsoon variability and ITCZ migration

Authors:
Jessica E. Tierney and James M. Russell: Department of Geological Sciences, Brown University, Providence, Rhode Island, U.S.A.

Source:
Geophysical Research Letters (GRL) paper 10.1029/2007GL029508, 2007, http://dx.doi.org/10.1029/2007GL029508


7. Antarctic ice cores record ancient meteoritic events

Antarctica represents the best site to collect small meteoritic particles because windblown terrestrial dust is scarce and extreme environmental conditions prevent chemical weathering. Although many investigations have searched for micrometeorites deposited within modern times, few have looked for them within ancient ice. As part of a new micrometorite collection project launched at the permanent French-Italian station of Concordia, on the East Antarctic Plateau, Narcisi et al. study the Dome C ice core, a core collected by the European Project for Ice Coring in Antarctica. They find two distinct dust layers which, through comparisons with extraterrestrial debris found in deep-sea sediments and polar caps, they determined to be of meteoritic origin. Closer inspection revealed that these layers represented individual meteoritic events, with the first occurring about 481,000 years ago and the second occurring 434,000 years ago, as indicated by layers in the ice core. The authors note that, similar to ashfall from a known volcanic explosion, such meteoritic events have the potential to serve as time markers in other less detailed stratigraphic records.

Title:
First discovery of meteoritic events in deep Antarctic (EPICA-Dome C
'/>"/>

Contact: Peter Weiss
pweiss@agu.org
202-777-7507
American Geophysical Union
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9 10 11

Related biology news :

1. UCLA Study Shows One-Third of Drug Ads in Medical Journals Do Not Contain References Supporting Medical Claims
2. Recent breakthroughs in common adult leukemia highlighted in New England Journal of Medicine
3. Leukemia Drug Breakthrough Study In New England Journal Of Medicine
4. Open Access journals get impressive impact factors
5. Funding and bureaucracy, not access to journals, are chief obstacles to scientific productivity
6. New journal article urges use of animal serum-free media for growing live cells
7. Impressive new Impact Factors for BioMed Centrals open-access journals
8. Public Library of Science to launch new, open access journal on neglected tropical diseases
9. Are journal rankings distorting science?
10. New book highlights worlds borderless conservation areas
11. Learning to love bacteria: Stanford scientist highlights bugs benefits
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/23/2015)... --NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the "Company"), ... market, announces its biometric payment technology, the Wocket® smart wallet, ... March 30 th . The new ... York markets. Gino Pereira ... new ad campaign following the recent initial shipment of Wocket ...
(Date:3/20/2015)... and Markets ( http://www.researchandmarkets.com/research/vkzvcs/iris_biometrics ) has announced the ... Report" report to their offering. This report ... The report provides separate comprehensive analytics for the US, ... Europe , Asia-Pacific , ... . Annual estimates and forecasts are provided ...
(Date:3/17/2015)... SAN DIEGO , March 17, 2015 /PRNewswire/ ... and emotion analytics software, today announced general availability ... on-demand web service for the analysis of facial ... they experience advertising, media content, products and services. ... customer attention, engagement and sentiment - as derived ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 2NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 3Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 2Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 3Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 4Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 5New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 2New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 4
... Dr. Yuri Lvov, professor of chemistry and T.C. Pipes ... University, recently led a symposium at the 241st Conference ... of a more eco-friendly and cost-effective nano-material that can ... paints and other synthetic composites. The symposium featured ...
... AURORA, Colo. (April 28, 2011) A University ... the cause of preeclampsia in pregnant women, won a ... Thursday which funds innovative global health and development projects. ... this prestigious award," said Mahua Choudhury, PhD, a research ...
... Nanoparticles will soon be used as tiny shuttles to ... a more targeted way than was possible in the ... the nanoparticles in medicine, concerns have arisen about their ... nanoparticles and their toxicity rely on the ability of ...
Cached Biology News:Louisiana Tech researcher presents on eco-friendly nanotechnology at national conference 2University of Colorado School of Medicine researcher wins award to study pre-eclampsia 2 Inverting a standard experiment sometimes produces different results 2 Inverting a standard experiment sometimes produces different results 3
(Date:3/27/2015)... 2015 The consumption of compound fertilizers ... recession and high prices in 2008. However, the situation ... keeps on gaining momentum now. , To date, the ... than 100,000 thousand tonnes. No considerable growth was registered ... capacity rocketed during 2012-2013, registering 11% growth as against ...
(Date:3/27/2015)... 27, 2015   SurePure, Inc . (OTCQB: ... today that the Company has completed the verification ... of SurePure ("SURP") securities on OTCQB, an electronic ... and development stage companies. On March ... eligibility requirements designed to improve marketplace integrity and ...
(Date:3/27/2015)... 2015 WuXi PharmaTech (Cayman) Inc. (NYSE: ... and technology platform company serving the global pharmaceutical, ... an Investigational New Drug (IND) application for WuXi ... has been accepted for review by the China ... In September 2012, MedImmune, the global biologics research ...
(Date:3/26/2015)... WARREN, N.J., March 26, 2015  Roka Bioscience, ... company focused on providing advanced testing solutions for ... financial results for the three months and full ... Quarter 2014 Financial Results:Revenue for the quarter ended ... $689,000 for the fourth quarter of 2013 and ...
Breaking Biology Technology:World NPK Fertilizers Market Keeps On Gaining Momentum, According to BAC Reports Study Available at MarketPublishers.com 2World NPK Fertilizers Market Keeps On Gaining Momentum, According to BAC Reports Study Available at MarketPublishers.com 3SurePure Completes Verification and Approved for Trading on the OTCQB Marketplace 2Investigational New Drug Application for WuXi MedImmune's Monoclonal Antibody Accepted for Review by CFDA 2Investigational New Drug Application for WuXi MedImmune's Monoclonal Antibody Accepted for Review by CFDA 3Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 2Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 3Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 4Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 5Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 6Roka Bioscience Reports Fourth Quarter and Full Year 2014 Financial Results 7
... 2010 Cell Therapeutics, Inc. ("the Company") (Nasdaq and ... ("EOS") follow up results from the Company,s pivotal phase ... the Company,s recent Marketing Authorization Application (the "MAA") currently ... The end-of-study results showed continued improvement in the ...
... Services, Inc. (Nasdaq: GTIV ), the nation,s largest ... it has scheduled a conference call and webcast on Thursday, ... update on its 2011 outlook. Gentiva plans to issue a ... The December 16, 2010 conference call is open ...
... Utah, Dec. 3, 2010 Nu Skin (NYSE: ... mental and physical vitality is improved through nutritional strategies ... made at the First World Congress on Targeting Mitochondria: ... "Through Nu Skin,s innovative ageLOC science we have ...
Cached Biology Technology:New Pixantrone Data Presented at Meetings at American Society of Hematology Conference 2New Pixantrone Data Presented at Meetings at American Society of Hematology Conference 3New Pixantrone Data Presented at Meetings at American Society of Hematology Conference 4New Pixantrone Data Presented at Meetings at American Society of Hematology Conference 5New Pixantrone Data Presented at Meetings at American Society of Hematology Conference 6Gentiva® Health Services Schedules 2011 Outlook Conference Call and Webcast for Thursday, December 16, 2010 2Gentiva® Health Services Schedules 2011 Outlook Conference Call and Webcast for Thursday, December 16, 2010 3Nu Skin Scientists Present ageLOC Research at International Conference on Mitochondria 2Nu Skin Scientists Present ageLOC Research at International Conference on Mitochondria 3
Hybridization chamblers suitable for use with all ChIP-GLAS microarrays....
Integrins Sampler Kit 10g each...
Protein Tyrosine Phosphatase Sampler Kit 10g each...
... phase reagent for Virus ... & unique water insoluble ... detergents and chaotropes; Engineered ... non-envelop viruses while preserving ...
Biology Products: