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:9/15/2014)... 2014: Globally, cardiovascular disease (CVD) claims 17 million lives ... an additional 9.4 million. 1 New research presented ... Congress in Montpellier, France on September 15, 2014, suggests ... role. , At the Milk and Dairy ... milk and risk for hypertension and CVD was examined ...
(Date:9/15/2014)... available in German . ... the fossil energy carrier natural gas offers a variety ... Nevertheless, a consequent market penetration is still pending because ... Scientists of the Helmholtz Centre for Environ-mental Research (UFZ) ... Members of the IEA Task 37 (Energy from Biogas) ...
(Date:9/12/2014)... , Sept. 12, 2014 Research and ... "Global IC Card Management System Industry Report 2014" ... IC Card Management System Industry Report 2014 is a ... the global IC card management system. The ... definitions, classifications, applications and industry chain structure. The IC ...
Breaking Biology News(10 mins):Dairy consumption linked to lower blood pressure and cardiovascular disease risk 2The biomethane market needs clear frame conditions for further growth 2The biomethane market needs clear frame conditions for further growth 3Global IC Card Management System Industry Report 2014 2
... LSU,s Sibel Bargu, along with her former graduate student Ana ... LSU,s School of the Coast & Environment, has discovered toxic ... the first time. The recent findings were published in the ... journals, the Proceedings of the National Academy of Sciences ...
... dioxide injected deep underground to help fight climate change could ... up levels of contaminants in the water tenfold or more ... scientists. Based on a year-long analysis of core samples ... contamination is real, but there are ways to avoid or ...
... 9, 2010 For Immediate Release Scientists from ... identified for the first time a novel mechanism that ... body,s natural 24-hour physiological cycle. These new findings could ... shift work, and sleep disturbances, but also for disorders ...
Cached Biology News:LSU oceanography researcher discovers toxic algae in open water 2LSU oceanography researcher discovers toxic algae in open water 3Leaking underground CO2 storage could contaminate drinking water 2Scripps Research scientists identify new mechanism regulating daily biological rhythms 2Scripps Research scientists identify new mechanism regulating daily biological rhythms 3
(Date:9/15/2014)... Paula, CA (PRWEB) September 15, 2014 ... long term implantable silicones for the medical device ... responsive silicone gel for the implantable medical device ... a unique crosslink technology delivering a silicone gel ... The Dual Matrix technology consists of two ...
(Date:9/15/2014)... Rome, GA (PRWEB) September 15, 2014 ... ( http://www.hydrodynamics.com ) announced today that it will ... Verdes Estates, CA ( http://www.proteaf.com ) for implementing ... in high value continuous processing. Continuous flow ... in the chemical, pharmaceutical and petrochemical markets for ...
(Date:9/12/2014)... a magnet using an electric field (magnetoelectric memory ... the next-generation technology for information processing and storage. ... effect, due to the coexistence of electric and ... of spontaneous electric and magnetic polarizations is rare ... of the MEM effect. This article briefly reviews ...
(Date:9/12/2014)... , September 12, 2014 On Thursday, ... 0.12%, the Dow Jones Industrial Average finished the day 0.12% ... up 0.09%. The gains were broad based as seven out ... 500 Health Care Sector Index ended the day at 741.83, ... last one month. Investor-Edge has initiated coverage on the following ...
Breaking Biology Technology:Applied Silicone Launches Silicone Gel System with Dual Matrix Technology 2Hydro Dynamics Partners with the Continuous Flow Chemistry Experts of Proteaf Technologies 2Technical Coverage on Biotech Stocks - Exelixis, Arena Pharma, Novavax, Dendreon, and Amicus Therapeutics 2Technical Coverage on Biotech Stocks - Exelixis, Arena Pharma, Novavax, Dendreon, and Amicus Therapeutics 3Technical Coverage on Biotech Stocks - Exelixis, Arena Pharma, Novavax, Dendreon, and Amicus Therapeutics 4Technical Coverage on Biotech Stocks - Exelixis, Arena Pharma, Novavax, Dendreon, and Amicus Therapeutics 5
... , , , For purification of up to 10 mg ultrapure plasmid , ... for efficient , purification of plasmid DNA , , ... benefits , , ... by 2x CsCl-gradient centrifugation , , ...
... , , , , , ... Svegliati, Michele Luchetti, and Armando Gabrielli , Laboratorio ... Scientifico, Ancona, Italy , , ... GC-rich sequences difficult to amplify by PCR. This article ...
... , , , QIAGEN introduces the ... automated, high-throughput DNA purification , from high-copy plasmids. ... for a lysate clearing step. Plasmid DNA purification is performed using ... procedure. The protocol , is faster and easier ...
Cached Biology Technology:Successful PCR amplification and subcloning of a GC-rich DNA fragment 2Successful PCR amplification and subcloning of a GC-rich DNA fragment 3Successful PCR amplification and subcloning of a GC-rich DNA fragment 4Successful PCR amplification and subcloning of a GC-rich DNA fragment 5DirectPrep 96 Miniprep System for cost-effective, high-throughput plasmid , DNA purification 2DirectPrep 96 Miniprep System for cost-effective, high-throughput plasmid , DNA purification 3DirectPrep 96 Miniprep System for cost-effective, high-throughput plasmid , DNA purification 4
...
Request Info...
... vectors carry the kanamycin resistance gene that ... Spontaneous generation of multiple insertion events can ... of Geneticin Reagent. Pichia transformants are selected ... level of resistance to Geneticin Reagent. The ...
... Synthetic peptide derived from the C-terminal ... Math-2. Specificity: Specific for the ... (positive controls: human U251 A172 IMR-32 ... rat brain homogenates)Storage: Store at -20C ...
Biology Products: