Navigation Links
Sandy beaches, hydrocarbon reservoirs, tectonic tilting: It's all about geology
Date:6/29/2012

in dolerite sills: A new proxy for cooling rate

Marian B. Holness et al., Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK. Posted online 29 June 2012; doi: 10.1130/G33119.1.

Working out how long bodies of magma take to solidify is important if we want to understand how volcanoes behave. Until now this has been done using theoretical cooling models or by looking at how big the individual crystals are (the bigger the crystals the longer time they had to grow). Here we show that the way the grain fit together gives us an accurate picture of how long magma took to solidify: the geometry of three-grain junctions is a highly sensitive speedometer for crystallization times between 10 and 1000 years.


Gravity fluctuations induced by magma convection at Kilauea volcano, Hawai'i

Daniele Carbone and Michael P. Poland, Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Osservatorio Etneo, Catania 95125, Italy. Posted online 29 June 2012; doi: 10.1130/G33060.1.

This paper reports on the first continuous gravity measurements accomplished at Kilauea volcano in Hawai'i. Daniele Carbone and Michael Poland recorded the shortest-period gravity oscillations related to volcanic activity that have ever been detected, which they associate with convection in a shallow magma chamber. Rapid magma convection has long been hypothesized at persistently active volcanoes based on numerical simulations, but supporting data are largely absent from the literature. Carbone and Poland interpret their gravity data to be the first geophysical fingerprint of convection occurring over a time scale on the order of minutes in a shallow magma reservoir. The implications of the paper are twofold: (1) the results provide a new perspective on how magma circulates at Kilauea and other persistently active volcanoes, which can impact the understanding of gas emissions, seismic activity, and eruption
'/>"/>

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

Page: 1 2 3 4 5 6 7 8 9 10

Related biology news :

1. A new vision for harnessing data about life on Earth
2. NIST launches new website to educate industry about alternatives to mercury thermometers
3. New discoveries about severe malaria
4. Purdue professor to speak before Congress about nanotechnology in brain treatment research
5. Study raises questions about use of anti-epilepsy drugs in newborns
6. Fruit flies provide new knowledge about uninhibited cell growth
7. Analysis raises atmospheric, ecologic and economic doubts about forest bioenergy
8. Whats in a surname? New study explores what the evolution of names reveals about China
9. Consumers need simple, concise messages about benefits of phytonutrients
10. Expedition to undersea mountain yields new information about sub-seafloor structure
11. New discoveries about brain-hand connection sought to improve therapies, treatments, prosthetics
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... Worcester, Mass. A novel robotic system that can ... currently being tested as part of a biomedical research ... with the aim of determining if the robot, in ... biopsies faster, more accurate, less costly, and less discomforting ... potential to deliver prostate cancer therapies with greater precision. ...
(Date:9/18/2014)... manipulate spoken language is unique to humans. "The genetic ... of human evolution to make this possible are largely ... now have," says Wolfgang Enard, Professor of Anthropology and ... the molecular biological basis of language Enard has now ... latest study, undertaken in collaboration with scientists at several ...
(Date:9/18/2014)... seem to be cheerful, happy-go-lucky characters, so you might ... life. , In fact some dogs are distinctly ... Sydney shows. , "This research is exciting because ... objectively and non-invasively. It offers researchers and dog owners ... that changes," said Dr Melissa Starling, from the Faculty ...
Breaking Biology News(10 mins):Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 2Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 3Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 4Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 5Language evolution: Quicker on the uptake 2Language evolution: Quicker on the uptake 3Dogs can be pessimists too 2Dogs can be pessimists too 3
... California, Davis, have invented a superthin "nanoglue" that could ... itself (say, semiconductor wafers) would break before the glue ... He and his fellow researchers have filed a provisional ... two surfaces. Pan,s nanoglue, which conducts heat and can ...
... As scientists continue the hunt for energy sources that ... amount of valuable farmland is being used to produce ... sources are renewable, economists and ecologists fear that diverting ... drive up costs. Now, Prof. Avigdor Abelson ...
... addressing the major challenges facing humanity in the 21st Century, ... Perspective published in The Plant Cell , the two ... to transforming plant biology in order to meet human needs. ... the biosphere, provide food and materials used by humans, and ...
Cached Biology News:Is seaweed the future of biofuel? 2The future of plant science a technology perspective 2
(Date:9/19/2014)... September 19, 2014 The new , ... , available today on PharmaBoardroom.com for ... crisis that rocked the Spanish economy in 2009, and the ... community has remained pragmatic in times of trouble. ... the fifth biggest European market, and the general conditions to ...
(Date:9/18/2014)... 18, 2014 About POCT ... outside a clinical laboratory. It helps in making ... treatments and medication. POCT is gaining popularity due ... diseases such as diabetes, heart disease, and obesity. ... are standardized to minimize errors during the diagnosis ...
(Date:9/18/2014)... , Sept. 18, 2014  Health Enhancement Products, Inc. (OTCQB: ... early-stage algae bioactive compounds and metabolic processes, is pleased to ... board of directors. Ms. Nola E. Masterson , a ... joined the board effective September 17, 2014. ... to join our board," states Andrew Dahl , President ...
(Date:9/18/2014)... 2014 On Tuesday, Secretary of Energy ... Risch for National Lab Day on the Hill. The ... national laboratory system. Durbin and Risch also formally launched ... awareness of the reach of the national labs as ... address some of our nation's most pressing challenges. , ...
Breaking Biology Technology:PharmaBoardroom Releases New Spain Pharmaceuticals Report 2PharmaBoardroom Releases New Spain Pharmaceuticals Report 3POCT Market in China 2014-2018 2Health Enhancement Announces New Board Member In Advance Of Annual Shareholder Meeting 2Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 2Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 3
... , , , , , , ... 11/1999 , , , , , , , ... Cell line , COS-1, monkey, kidney, , ... pEGFP-N1 (in bidistilled H 2 O), , , ...
... , , , , , Multiporator / Electroporator 2510 , , , ... Transformation Protocol , Protocol No. 4308 915.510 12/2001 , ... , , , , , ... , Cell type , Bacteria, ...
... , , , , , , ... 915.032 03/2000 , , , , , , ... Cell line , BW 5147, mouse lymphoma T-cell line, ... Plasmid pEGFP-N1 (in bidistilled H 2 O), , ...
Cached Biology Technology:COS-1 2Corynebacterium glutamicum 2BW 5147 2
... a partial recombinant IFNA2. Immunogen: ... is produced in E. coli. The biological ... OMIM: 147562, ... MM951100564 MA Code: ABV0P9DPB ...
... 100-120 V, is used to coat the inner ... create the source of the DNA that enters ... gene gun. The station includes a tubing support ... foot Nalgene nitrogen regulator hose, two 0.1875 inch ...
... Microarray Hybridization Wash Pack provides optimized ... slides. Preparation Quality Clarifier: Ready-to-use wash ... with SigmaScreen(tm) APS Coated Slides for ... Microarray Hybridization Blocking Buffer: 1L • ...
Mouse monoclonal antibody raised against a partial recombinant NR4A2. NCBI Entrez Gene ID = NR4A2...
Biology Products: