Navigation Links
Reinterpreting origins, examining skeletal preservation, and understanding volcanics
Date:12/19/2013

lleagues show how the geometry of pore space controls compaction, gas escape, welding, and post-emplacement gas flow within pyroclastic-flow deposits. Importantly, they present new permeability measurements that demonstrate that lateral gas flow is favored over vertical gas flow if there is a sufficient pressure gradient driving lateral gas migration. Further, Wright and colleagues document how competing processes of gas loss, compaction, cooling, and H2O resorption into volcanic glass control the development of overpressure capable of creating secondary explosions from within pyroclastic-flow deposits.


Petrogenesis of Mount Rainier andesite: Magma flux and geologic controls on the contrasting differentiation styles at stratovolcanoes of the southern Washington Cascades
T.W. Sisson et al., U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94925, USA, tsisson@usgs.gov. Posted online ahead of print on 13 Dec. 2013; http://dx.doi.org/10.1130/B30852.1.

Mount Rainier volcano dominates the skyline of the southern Puget Sound region (Washington, USA), towering over the peaks of the surrounding Cascade Range. Radiogenic (Sr, Nd, Pb), and stable (O) isotopes of its andesitic magmas identify modest incorporation (0% to 20%) of materials derived from old continental interior sources, present in southwest Washington as sandstones and shales of the Eocene Puget Group. Other rocks of the region are unsuitable as major assimilants. Most of Mount Rainier's andesites, however, result from a process of in situ differentiation and mixing wherein mantle-derived magmas stall beneath the volcano and crystallize rapidly to advanced degrees, yielding evolved interstitial liquids, some of which are entrained and mixed into subsequent magmas ascending through the intrusive plexus. Chemical effects of accessory mineral (zircon, apatit
'/>"/>

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. Potential new approach to regenerating skeletal muscle tissue
2. The genetic cause of a severe skeletal disease in Brazilian Terrier puppies revealed
3. New neural pathway controlling skeletal development discovered
4. Aging impacts epigenome in human skeletal muscle
5. Study amplifies understanding of hearing in baleen whales
6. New genetically engineered mice aid understanding of incurable neuromuscular disease
7. New data improve understanding of breast cancers multiple varieties
8. Understanding why some people have propensity to disease
9. Understanding the RNAi Reagents Market Overlap with Drug Discovery and Therapeutic Development is Critical for Pharmaceutical Leaders
10. Zebrafish could hold the key to understanding psychiatric disorders
11. A trained palate: Understanding complexities of taste, smell could lead to improved diet
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/15/2014)... deforestation could cause temperatures in the Congo Basin ... intensify warming caused by greenhouse gases by half, ... University of Leuven, Belgium. , Explosive population growth ... of tropical rainforests in Central Africa. A team ... how these practices will affect longer-term temperatures in ...
(Date:4/15/2014)... IL (April 15, 2014) New research published ... of the American College of Nutrition shows whey ... or as part of a weight-loss or weight-maintenance diet, ... composition. , The meta-analysis included 14 randomized controlled ... researchers analyzed those weight loss studies that used whey ...
(Date:4/14/2014)... the greenhouse gas methane were found above shale gas ... an important emissions source, according to a study jointly ... have implications for the evaluation of the environmental impacts ... one of only a few to use a so-called ... the air above wells, identified seven individual well pads ...
Breaking Biology News(10 mins):Study: Deforestation could intensify climate change in Congo Basin by half 2New meta-analysis builds on the power of whey protein for improved body composition 2New meta-analysis builds on the power of whey protein for improved body composition 3'Problem wells' source of greenhouse gas at unexpected stage of natural gas production 2
... African Americans known to potentially cause hypertension, found Michael ... in the September issue of Experimental Physiology. Brown is ... of Health Professions. The hormone, aldosterone, influences the ... it can contribute to the development of hypertension because ...
... Enjoying your August vacation? Well, (as they say in the ... has been consistently quiet, sudden, and deadly. Unknowingly, we have ... rock -- you personally are not in any danger. Its ... be an accomplice. Melodrama aside, the threat is very ...
... For years, scientists have known that some people are biologically ... only been able to speculate why. In the August ... the University of Chicago report on a study that may ... rats most likely to self-administer addictive drugs had a particular ...
Cached Biology News:Understanding hypertension in African Americans proves elusive 2Humans fostering forest-destroying disease 2Humans fostering forest-destroying disease 3Humans fostering forest-destroying disease 4Nicotinic receptors may be important targets for treatment of multiple addictions 2
(Date:1/15/2014)... January 15, 2014 This webinar ... on nonclinical and clinical safety assessment in biosimilars. ... guide a path for biosimilar drug development, however ... of biosimilarity with regards to quality, safety and ... of biosimilar drug development and registration, development strategies ...
(Date:1/15/2014)... NC (PRWEB) January 15, 2014 ... an enhancement to its Online Web Portal for Life ... now have the ability to specify the subject matter ... nearly 50 life science sub-domains. This will help reduce ... and scientific fields, and decrease the likelihood of error. ...
(Date:1/14/2014)... Doylestown, PA (PRWEB) January 14, 2014 ... – 11 p.m. , Location: Warrington Country Club, 1360 ... Hepatitis B Foundation, the only national nonprofit organization solely ... improving the quality of life for those affected worldwide, ... 11 at Warrington Country Club in Warrington, Pa. ...
(Date:1/14/2014)... York, NY (PRWEB) January 14, 2014 ... initiated coverage of Alliqua, Inc. (OTCQB: ALQA). Alliqua ... and marketing proprietary products to serve the wound ... , In late 2012, Alliqua was restructured ... launched the company’s new strategy to become a ...
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
... ... its technology platform to support large projects. , ... (PRWEB) January 21, 2010 -- Firmex, the leader in ... to its technology platform. , , , , ,Firmex has released a new architecture ...
... ... development capacity drives PCT to open new facility , ... Allendale, NJ (Vocus) January 22, 2010 -- Progenitor Cell Therapy, LLC ... , , , , ,The company’s new cell therapy development and manufacturing ...
... ... SINGAPORE , January 22 , ... Together for Honors , Elsevier announced today the winners ... Scopus(R), the,world,s largest abstract and citation database of peer-reviewed literature,and the Third World ...
Cached Biology Technology:Firmex Announces Virtual Data Room Enhancements for Large Projects 2Firmex Announces Virtual Data Room Enhancements for Large Projects 3Progenitor Cell Therapy Expands Manufacturing Operations 2Progenitor Cell Therapy Expands Manufacturing Operations 3Scopus(R), TWOWS and TWAS Announce Young Women Researcher Award Recipients in Asia 2Scopus(R), TWOWS and TWAS Announce Young Women Researcher Award Recipients in Asia 3Scopus(R), TWOWS and TWAS Announce Young Women Researcher Award Recipients in Asia 4Scopus(R), TWOWS and TWAS Announce Young Women Researcher Award Recipients in Asia 5Scopus(R), TWOWS and TWAS Announce Young Women Researcher Award Recipients in Asia 6Scopus(R), TWOWS and TWAS Announce Young Women Researcher Award Recipients in Asia 7
... Combining linear motor and ballscrew ... pre-engineered Cartesian solutions that include ... management, and motors., , ... Pass through high-flex cabling for ...
UGT1A6 (D-20)...
... T Squareds patented high efficiency dynamic valve ... With the most compact, lightweight package in ... use in portable air and gas applications., ... high efficiency. , Includes DC Motor. ...
... designed for moving loads quickly and accurately. ... output while limiting overall size. The P5S-P ... ball bearings guided on two rails., ... provide energy absorption and controlled deceleration , ...
Biology Products: