Navigation Links
GSA's top geoscience journal posts 9 new articles
Date:5/2/2013

f water.


Combined bromine and chlorine release from large explosive volcanic eruptions: A threat to stratospheric ozone?
S. Kutterolf et al., GEOMAR, Helmholtz Centre for Ocean Research, SFB574, Wischhofstrasse 1-3, 24148 Kiel, Germany. Posted online ahead of print on 29 April 2013; http://dx.doi.org/10.1130/G34044.1.

Volcanoes of the Nicaraguan Volcanic Arc have produced 14 Plinian eruptions within the last 70,000 years. Their eruption columns and therefore released volatiles reached well into the stratosphere, where they had potential to influence atmospheric chemistry and climate. While previous research has focused on the sulfur and chlorine emissions during such large eruptions, S. Kutterolf and colleagues here present measurements of the heavy halogen bromine by means of synchrotron radiation induced micro-XRF microanalysis. Spot analyses of pre-eruptive glass inclusions trapped in minerals (0.5 to 13 ppm) were compared with those in matrix glasses of the tephras (0 to 2 ppm), which represent the post-eruptive, degassed concentrations. The concentration difference between inclusions and matrix glasses, multiplied by erupted magma mass yields estimates of 4 to 600 kilotons of degassed bromine. With respect to an assumed pre-1980 mean stratospheric background and a conservative estimation that only 10% of the halogens per eruptions reached the stratosphere additionally an average of about two times the normal global annual halogen contamination have been added per Nicaraguan Plinian eruption in the past. These results stress the importance of considering volcanic Br emissions along with Cl and sulfate aerosol in order to assess the naturally induced ozone depletion in the stratosphere and their harmful ultraviolet radiation affecting the Earth surface.


A reappraisal of the early slip history of the San Andreas fault, central Califo
'/>"/>

Contact: Kea Giles
kgiles@geosociety.org
Geological Society of America
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8

Related biology news :

1. Summer Geoscience from GSA Bulletin
2. The Geological Society of America Journal Geology: Dynamic geoscience
3. 2013 General Assembly of the European Geosciences Union
4. Geosphere features top geoscience technology, including LiDAR, EarthScope, CHIRP, ALSM, and IODP
5. Tips from the journal mBio
6. Canadian Journal of Cardiology publishes new atrial fibrillation guidelines
7. Flavor and the new Nordic cuisine: BioMed Centrals new scientific journal Flavor is launched
8. Elsevier launches new journal Algal Research
9. AGU journal highlights for March 29, 2012
10. AGU journal highlights for April 16, 2012
11. Elsevier selected as new publisher of the American Journal of Geriatric Psychiatry
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/17/2014)... great deal about complex social behavior by studying nonhuman ... teach too. , With their unusually large brains relative ... in a complex social environment---not merely in a large ... but in a dynamic setting of alliances and competitors. ... dolphins, whales, primates, and social carnivores, like hyenas and ...
(Date:9/16/2014)... of severe maternal morbidity amongst women in Australia ... new study published today (17 September) in ... . , Australians generally enjoy high standards of ... disparities exist, in particular between indigenous and non ... explore the independent impact of socioeconomic position on ...
(Date:9/16/2014)... Johns Hopkins neuroscientists have discovered the "molecular brakes" that ... ear cochleas of mice. These "hair cells" translate sound ... brain and are interpreted as sounds. If the arrangement ... , A summary of the research will be published ... 16. , "The proteins Hey1 and Hey2 act as ...
Breaking Biology News(10 mins):Being social: Learning from the behavior of birds 2New study examines the impact of socioeconomic position & maternal morbidity in Australia 2New study examines the impact of socioeconomic position & maternal morbidity in Australia 3Hey1 and Hey2 ensure inner ear 'hair cells' are made at the right time, in the right place 2
... (MGH) researchers have developed a new type of miniature ... expand the application of minimally invasive diagnostic and therapeutic ... the team from the Wellman Center for Photomedicine at ... its use in a mouse model. , ...
... 4 cases of botulism following cosmetic injections to the ... unlicensed preparation that resulted in toxin levels up to ... a report in the November 22/29 issue of JAMA. ... by the toxins of the spore-forming bacterium Clostridium botulinum ...
... collaborating institutions report in this week's Science a ... 2.8 kilometers below Earth's surface. Think that's weird? ... water molecules to useable energy. , The ... the three-dimensional shell that encompasses all planetary life. ...
Cached Biology News:Three-dimensional, miniature endoscope opens new diagnostic possibilities 2Highly concentrated botulinum preparation for cosmetic injections can result in severe illness 2Highly concentrated botulinum preparation for cosmetic injections can result in severe illness 3Bacteria that use radiated water as food 2Bacteria that use radiated water as food 3
(Date:9/17/2014)... PARK, N.C. , Sept. 17, 2014  The ... presentation topics that will be featured at the conference, ... Conference Center on December 3 and 4, 2014. Researchers, ... are invited to hear the following: ... UC San Diego Skaggs School of Pharmacy ...
(Date:9/17/2014)... September 17, 2014 Shimadzu ... Liquid Chromatograph (2D-LC), which offers a powerful ... matrices. The system provides a new level ... which is beneficial to scientists analyzing pharmaceutical ... natural products. , Comprehensive 2D-LC combines two ...
(Date:9/17/2014)... (PRWEB) September 17, 2014 A ... occurring microorganisms such as bacteria, fungi, and algae ... water, methane, biomass, inorganic compounds, carbon dioxide, and ... expanding customer base and improved costs, biodegradable polymers ... economically viable alternative to conventional polymers. Primary factors ...
(Date:9/17/2014)... 2014 BioClinica®, Inc., a leading provider of ... three of its experts are speaking at the ... to be held September 28 to October 1 in ... also announced the innovative Compass technology, a ... trials acquired earlier this year, is up for the ...
Breaking Biology Technology:In Silico Drug Discovery Conference Announces Speakers and Topics 2In Silico Drug Discovery Conference Announces Speakers and Topics 3In Silico Drug Discovery Conference Announces Speakers and Topics 4In Silico Drug Discovery Conference Announces Speakers and Topics 5In Silico Drug Discovery Conference Announces Speakers and Topics 6In Silico Drug Discovery Conference Announces Speakers and Topics 7Shimadzu’s New Nexera-e Two Dimensional Comprehensive Liquid Chromatograph Empowers Laboratories to Separate Even the Most Complex Mixtures 2Growing Demand for Eco-Friendly Products Drives the Global Biodegradable Polymers Market, According to New Report by Global Industry Analysts, Inc. 2Growing Demand for Eco-Friendly Products Drives the Global Biodegradable Polymers Market, According to New Report by Global Industry Analysts, Inc. 3BioClinica to Present at 20th Annual SCDM Conference 2BioClinica to Present at 20th Annual SCDM Conference 3
... BioLife,s Proprietary, Next Generation, Biopreservation, Media Resulted in Increased Yield ... ... Cells, BOTHELL, Wash., Oct. 24 ... of,proprietary hypothermic storage and cryopreservation media products for,cells, tissues, and organs, ...
... Corp. (Other,OTC: IDTA.PK) released today the Jant Pharmacal ... and Oversees markets., - The strategic partnership ... continues, has resulted in increasing market,penetration over the ... sales,have increased significantly in the United States with ...
... Notice of Allowance of European Patent Application Covering Its Core ... Product Applications Protection Rights to All Cytokine ... ... GenOdyssee (GO), a biotechnology,company dedicated to the discovery and development of ...
Cached Biology Technology:BioLife Solutions HypoThermosol(R) Adopted by MicroIslet for Processing Pancreatic Islet Cells to Treat Diabetes 2BioLife Solutions HypoThermosol(R) Adopted by MicroIslet for Processing Pancreatic Islet Cells to Treat Diabetes 3BioLife Solutions HypoThermosol(R) Adopted by MicroIslet for Processing Pancreatic Islet Cells to Treat Diabetes 4International Drug & Explosive Detection Firm Identa Corp Releasing: Jant Pharmacal Corporation Reports Successful Market Penetration of the Accutest(R) IDenta Co-brand in the United States and Oversees 2International Drug & Explosive Detection Firm Identa Corp Releasing: Jant Pharmacal Corporation Reports Successful Market Penetration of the Accutest(R) IDenta Co-brand in the United States and Oversees 3International Drug & Explosive Detection Firm Identa Corp Releasing: Jant Pharmacal Corporation Reports Successful Market Penetration of the Accutest(R) IDenta Co-brand in the United States and Oversees 4GenOdyssee Receives Broad Product Applications Protection in EU for Founding Natural Evolution Technology 2GenOdyssee Receives Broad Product Applications Protection in EU for Founding Natural Evolution Technology 3GenOdyssee Receives Broad Product Applications Protection in EU for Founding Natural Evolution Technology 4
Request Info...
... DNase is a preparation of deoxyribonuclease ... DNA to produce 3-hydroxyl oligonucleotides. This ... applications where maintaining the integrity of ... qualified for use with the Core ...
... catalyzes the template-directed polymerization of nucleotides into ... Polymerase I possesses a 3?5 exonuclease activity ... rate during DNA replication, and also contains ... enzyme to replace nucleotides in the growing ...
RNase-Free DNase 50 l...
Biology Products: