Navigation Links
'Rosetta Stone' of supervolcanoes discovered in Italian Alps
Date:9/21/2009

Scientists have found the "Rosetta Stone" of supervolcanoes, those giant pockmarks in the Earth's surface produced by rare and massive explosive eruptions that rank among nature's most violent events. The eruptions produce devastation on a regional scale and possibly trigger climatic and environmental effects at a global scale.

A fossil supervolcano has been discovered in the Italian Alps' Sesia Valley by a team led by James E. Quick, a geology professor at Southern Methodist University. The discovery will advance scientific understanding of active supervolcanoes, like Yellowstone, which is the second-largest supervolcano in the world and which last erupted 630,000 years ago.

A rare uplift of the Earth's crust in the Sesia Valley reveals for the first time the actual "plumbing" of a supervolcano from the surface to the source of the magma deep within the Earth, according to a new research article reporting the discovery. The uplift reveals to an unprecedented depth of 25 kilometers the tracks and trails of the magma as it moved through the Earth's crust.

Supervolcanoes, historically called calderas, are enormous craters tens of kilometers in diameter. Their eruptions are sparked by the explosive release of gas from molten rock or "magma" as it pushes its way to the Earth's surface.

Calderas erupt hundreds to thousands of cubic kilometers of volcanic ash. Explosive events occur every few hundred thousand years. Supervolcanoes have spread lava and ash vast distances and scientists believe they may have set off catastrophic global cooling events at different periods in the Earth's past.

Sesia Valley's caldera erupted during the "Permian" geologic time period, say the discovery scientists. It is more than 13 kilometers in diameter.

"What's new is to see the magmatic plumbing system all the way through the Earth's crust," says Quick, who previously served as program coordinator for the Volcano Hazards Program of
'/>"/>

Contact: Kim Cobb
cobbk@mail.smu.edu
214-768-7654
Southern Methodist University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Trichoplax genome sequenced -- rosetta stone for understanding evolution
2. Gladstones Shinya Yamanaka wins Lasker Award
3. Lockheed Martin Team Completes Key Design Milestone on Federal Bureau of Investigations Next Generation Identification Program
4. IU discovers stone tools, rare animal bones -- clues to Caribbeans earliest inhabitants
5. Milestone in live microscopy focus of $2 million NIH grant
6. ExcellGene and Khner achieved milestone in development of novel 250 Liter mammalian cell culture bioreactors
7. Gladstone scientists identify key factors in heart cell creation
8. Drinking diet soda may reduce the risk of forming kidney stones
9. Gladstone scientists reveal key enzyme in fat absorption
10. Montana State team finds Yellowstone alga that detoxifies arsenic
11. Milestone achieved toward production of malaria treatment using synthetic biology and fermentation
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/23/2014)... of Toronto Scarborough research shows that male black widow ... a rare example of mate preference by male ... post-doc Emily MacLeod and Maydianne Andrade, a professor in ... field studies and the wild that males overwhelmingly chose ... male black widows can tell whether a potential mate ...
(Date:4/23/2014)... Putnam Valley, NY. (Apr. 23, 2014) People who ... little potential to restore neurological function. However, a study ... future issue of Cell Transplantation , but is ... at: http://www.ingentaconnect.com/content/cog/ct/pre-prints/content-ct1168Chen , has found that when one ... stem cells (PBSCs) injected directly into the brain and ...
(Date:4/23/2014)... boom has transformed the energy landscape in the ... cause conflict among the energy industry, residents and ... They add that degraded water quality is a ... feature article appears in the ACS journal ... Mauter and colleagues point out that a major ...
Breaking Biology News(10 mins):Picky male black widow spiders prefer well-fed virgins 2Autologous stem cell therapy improves motor function in chronic stroke victims 2How to avoid water wars between 'fracking' industry and residents 2
... scientist Dr. Gadi V.P. Reddy is concerned about ... health of island residents and ecosystems. He has ... use and has recently been awarded an $188,000 ... (USDA-NIFA) Pest Management Alternatives Program (PMAP). Dr. Monte ...
... PA, June 24, 2011 Adolescents who diet and ... behaviors and binge eating) carry these unhealthy practices into ... by University of Minnesota researchers and published in the ... American Dietetic Association . "The findings from the ...
... applications in reconstructive and cosmetic surgery and in the food ... prolines within the protein need to be hydroxylated. BioMed Central,s ... the first time the α1 chain of type 1 collagen ... hydroxylation to human collagen. Most collagen used is derived ...
Cached Biology News:UOG scientist wins USDA competitive funding 2Adolescents' dieting and disordered eating behaviors continue into young adulthood 2Adolescents' dieting and disordered eating behaviors continue into young adulthood 3
(Date:1/15/2014)... January 15, 2014 This webinar will ... and clinical safety assessment in biosimilars. , Regulatory frameworks ... biosimilar drug development, however the complex nature of biopharmaceuticals ... safety and efficacy extremely challenging. Based on the specific ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 DTS Language ... its Online Web Portal for Life Science organizations who need ... specify the subject matter of their documents in advance with ... help reduce time-to-delivery of translations, often a critical factor in ...
(Date:1/14/2014)... PA (PRWEB) January 14, 2014 Date: Friday, ... , Location: Warrington Country Club, 1360 Almshouse Road, Warrington, Pa. ... national nonprofit organization solely dedicated to finding a cure for ... affected worldwide, will host its annual Crystal Ball on Friday, ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 EquitiesIQ, a ... Inc. (OTCQB: ALQA). Alliqua is an emerging biomedical company ... the wound care market. , Free report download: ... with a seasoned management team and Board, which launched ...
Breaking Biology Technology:Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2DTS Improves Efficiency for Life Science Document Translations 2Hepatitis B Foundation to Host Annual Crystal Ball Gala 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3
... widely used as a navigational tool in vehicles from ... vehicle on three axes to evaluate its exact position ... School of Physical Engineering is now scaling down this ... and more futuristic technologies. Working in collaboration with ...
... 5 Regenicin™, Inc. (OTC Bulletin Board: ... announced today that Mr. Christopher A. Hadsall, whose primary ... to join the company as Chief Operating Officer.  Mr. ... Regenicin™ and will be instrumental in working with various ...
... MiMedx Group, Inc. (OTC Bulletin Board: ... patent protected biomaterial-based products, announced today that its results ... be released before the opening of the market on ... live broadcast of its third quarter conference call on ...
Cached Biology Technology:A tracking device that fits on the head of a pin 2Regenicin Names Former U.S. Marine Corp Operations Officer, Christopher Hadsall, Chief Operating Officer 2Regenicin Names Former U.S. Marine Corp Operations Officer, Christopher Hadsall, Chief Operating Officer 3MiMedx Group, Inc. Announces Release Date For Third Quarter Results 2