Navigation Links
GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury
Date:12/21/2012

ers of self-propagating mineral reaction, if rock deformation allows. The threshold between dry and wet in granulite and eclogite facies rocks is crossed once the nominally anhydrous minerals are saturated with hydrogen.


Explosive subglacial rhyolitic eruptions in Iceland are fueled by high magmatic H2O and closed-system degassing

Jacqueline Owen et al., Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK. Posted online 30 Nov. 2012; http://dx.doi.org/10.1130/G33647.1.

New research has discovered that magmatic water alone can power the explosivity of Icelandic rhyolite eruptions. Previously, scientists were aware of explosive rhyolitic eruptions from Iceland, but firm evidence of what might be powering the explosions and how much magmatic water the magma could contain were both lacking. The study by Jacqui Owen, Hugh Tuffen (both Lancaster University) and Dave McGarvie (The Open University) investigated samples collected from numerous subglacial rhyolitic edifices in Torfajkull (Iceland) that showed contrasting eruptive behavior. This included material from one of Iceland's most powerful subglacial rhyolitic eruptions which occurred 70,000 years ago and distributed thick ash layers across Europe. This new research shows a strong correlation between the explosivity of the eruptions and both the initial water content and "openness" of degassing; suggesting that magmatic volatile content alone is sufficient to drive powerful Icelandic eruptions, even those that initiate beneath thick ice sheets. Furthermore, Icelandic magma may contain much more water than previously thought, with values twice as high as expected being measured. This research helps explain the power behind some of Iceland's most explosive ash producing eruptions and may assist scientists working on the potential impact of future explosive rhyolitic eruptions on air travel.'/>"/>

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

Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Related biology news :

1. Seismic zones, river deltas, landslides, fossil reptiles, and more new Geology science
2. From 503-million-year-old fungi to recent earthquakes: New Geology posted ahead of print
3. Sandy beaches, hydrocarbon reservoirs, tectonic tilting: Its all about geology
4. Geosphere: How geology, technology, modeling, and mapping see into Earths past and present
5. Geologys Mystery Interval, the Great Deepening, and the largest kill-off in Earth history
6. GEOLOGY adds 30 new articles online
7. GEOLOGY speeding top science to online platform
8. GSA Bulletin presents studies in Antarctica, Italy, Mexico, Algeria, Mongolia, and more
9. Exclusive agreement to distribute Affinity Biosensors Archimedes system extends Malvern Instruments biopharma solutions
10. $1 million Kenan Trust Grant extends support of Scripps Florida education outreach
11. Effects of environmental toxicants reach down through generations
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/2/2014)... integrity? Tell the truth; everyone has a tipping point. We ... lie if the benefit is great enough. Now, scientists have ... that decision. , The result was published online this ... prefer to be honest, even if lying is beneficial," said ... at the Virginia Tech Carilion Research Institute , where ...
(Date:9/2/2014)... in Taiyuan, China, have substantially improved the health of ... reduction in costs associated with loss of life and ... the Columbia Center for Children,s Environmental Health (CCCEH) at ... University, the Center of Diseases Control and Prevention of ... Health. , The study is the first to document ...
(Date:9/2/2014)... When you accidentally touch a hot oven, you rapidly ... neural circuits involved in sensing and responding to such ... players. , Duke researchers have made a surprising discovery ... pain in worms, and have built a structural model ... Nature Communications , may help direct new strategies ...
Breaking Biology News(10 mins):Scientists find possible neurobiological basis for tradeoff between honesty, self-interest 2Scientists find possible neurobiological basis for tradeoff between honesty, self-interest 3Scientists find possible neurobiological basis for tradeoff between honesty, self-interest 4Clean air halves health costs in Chinese city 2Surprising new role for calcium in sensing pain 2Surprising new role for calcium in sensing pain 3
... Local and regional researchers collect large amounts of ... but the researchers that create the economic and climate ... Now, thanks to a $2 million grant from the ... the modelers through the Penn State Institutes of Energy ...
... in Spanish . Wheat growers in ... to climate change in the decades ahead, thanks to U.S. ... with the USDA,s Agricultural Research Service (ARS) installed infrared heaters ... Center in Maricopa, Ariz., to simulate growing conditions expected by ...
... the recent prediction that half of all Americans will have ... a new genetic discovery published online in the FASEB ... to why: we took an evolutionary "wrong turn." In the ... loss of function in a gene called "CMAH" may make ...
Cached Biology News:DOE grant joins climate modeling with local, regional empirical data 2Examining climate change effects on wheat 2New research suggests that obesity and diabetes are a downside of human evolution 2
(Date:9/2/2014)... Fla. , Sept. 2, 2014  Technology Applications ... announced that its wholly-owned subsidiary Renuell Int,l, Inc. has ... Aeronautics and Space Administration ("NASA") at the Johnson Space ... See photos: tapplic.com/houstonphotos/ ... "We are very pleased to announce our latest, exclusive ...
(Date:9/2/2014)... Philadelphia, PA (PRWEB) September 02, 2014 ... pioneered a new highly efficient, cost effective approach ... U.S. Patent No. 8,820,265 by the U.S. Patent ... proprietary to Opertech. , “Opertech’s taste ... is the first automated high throughput system for ...
(Date:9/2/2014)... Sept. 2, 2014  Xencor, Inc. (NASDAQ: ... engineered monoclonal antibodies for the treatment of autoimmune ... announced the appointment of Debra Zack , ... appointment of Lloyd Rowland , senior vice ... "Debra,s expertise in biologics clinical development ...
(Date:9/2/2014)...  Synthetic Biologics, Inc. (NYSE MKT: SYN), a ... targeting specific pathogens that cause serious infections and ... preclinical toxicology study of SYN-004. Per U.S. Food ... was required to move the Company,s lead anti-infective, ... effects of Clostridium difficile (C. difficile), ...
Breaking Biology Technology:Technology Applications International Corporation Subsidiary Enters Into Additional Exclusive Agreement with NASA at a Signing Ceremony at the Johnson Space Center In Houston, Texas 2Technology Applications International Corporation Subsidiary Enters Into Additional Exclusive Agreement with NASA at a Signing Ceremony at the Johnson Space Center In Houston, Texas 3Opertech Bio Receives U.S. Patent for High-Throughput Taste Evaluation Technology 2Xencor Appoints Debra Zack, M.D., Ph.D., Vice President, Clinical Development and Lloyd Rowland, Senior Vice President, Chief Compliance Officer and General Counsel 2Xencor Appoints Debra Zack, M.D., Ph.D., Vice President, Clinical Development and Lloyd Rowland, Senior Vice President, Chief Compliance Officer and General Counsel 3Synthetic Biologics to Initiate Clinical Trials of SYN-004 in 4Q 2014 to Prevent Potentially Deadly C. difficile Infections 2Synthetic Biologics to Initiate Clinical Trials of SYN-004 in 4Q 2014 to Prevent Potentially Deadly C. difficile Infections 3Synthetic Biologics to Initiate Clinical Trials of SYN-004 in 4Q 2014 to Prevent Potentially Deadly C. difficile Infections 4Synthetic Biologics to Initiate Clinical Trials of SYN-004 in 4Q 2014 to Prevent Potentially Deadly C. difficile Infections 5
... ArunA Biomedical, Inc., the first,company to commercialize human ... that William T. Sharp has been named President,and ... leadership,responsibilities, Mr. Sharp has also been appointed to ... Steven Stice, PhD, who will,remain ArunA,s Chairman and ...
... July 29 Xceed,Molecular, a pioneer in the ... its new Inflammation Xpress,Chip, a pre-configured array for ... at the 2008 AACC/ASCLS Clinical Lab Expo,(booth 2155). ... E. Washington,Convention Center in Washington, DC., "With ...
... are everywhere from the air we breathe and the food ... are innocuous or even beneficial, and only a handful pose any ... unwanted intruder? , Research from the University of Wisconsin-Madison suggests ... , A study appearing online this week in the Proceedings ...
Cached Biology Technology:ArunA Biomedical Names William T. Sharp President and Chief Executive Officer 2Xceed Molecular to Launch New Inflammation Xpress Chip(TM)for the Ziplex(R) Automated Gene-Expression Analysis System at Clinical Lab Expo 2008, Booth 2155 2Xceed Molecular to Launch New Inflammation Xpress Chip(TM)for the Ziplex(R) Automated Gene-Expression Analysis System at Clinical Lab Expo 2008, Booth 2155 3Symbiotic microbes induce profound genetic changes in their hosts 2