Navigation Links
Seismic zones, river deltas, landslides, fossil reptiles, and more new Geology science
Date:3/6/2012

he moraine contains rock avalanche material, and thus may be the result of a non-climatic advance. They also tested this technique on some dated moraines in the Southern Alps, New Zealand.


Generation of Eoarchean tonalite-trondhjemite-granodiorite series from thickened mafic arc crust
Thorsten J. Nagel et al., Steinmann-Institute, Universitt Bonn, 53115 Bonn, Germany. Published online 28 Feb. 2012; doi: 10.1130/G32729.1.

Around four billion years ago, the first continents emerged through partial melting of hydrated basaltic rocks. The tectonic setting of this event is a matter of intense debate and is connected to the problem of how plate tectonics worked on the early Earth. The trace element composition of the oldest well-preserved continental fragments found in western Greenland has widely been interpreted to have originated from melting of basaltic crust at great depths in a subduction zone. Thorsten J. Nagel of Universitat Bonn, Germany, and colleagues combine thermodynamic calculations of partial melting and subsequent trace element modeling to simulate the formation of continental crust in different tectonic environments. They find the best coincidence between observed and calculated trace element compositions in model runs assuming melting of early Archean metamorphic basalts from western Greenland at much shallower depths than expected for melting in a subduction zone. They also find that these local basalts show similarities to modern arc volcanics rather than to mid-ocean ridge basalts, which would be expected to enter a subduction zone. The results presented here by Nagel and colleagues challenge the traditional view of continental crust formation via melting of normal oceanic crust in a down-going slab and support scenarios of melting within tectonically thickened, hot crust.


Drought drove forest decline and dune building in eastern upper Michigan, USA, as the upper Great Lakes became cl
'/>"/>

Contact: Christa Stratton
cstratton@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

Related biology news :

1. Ticking of cellular clock promotes seismic changes in the chromatin landscape associated with aging
2. L-1 Identity Solutions Receives $5.9 Million Drivers License Contract Expansion from the State of Mississippi
3. L-1 Identity Solutions Awarded New Massachusetts RMV Drivers License Contract Valued at an Estimated $32 Million
4. Case Western Reserve University project ties soil conservation and river management together
5. UC Riverside biochemists devise method for bypassing aluminum toxicity effects in plants
6. Vitamin D a key player in overall health of several body organs, says UC Riverside biochemist
7. Similar survival rates for Pacific salmon in Fraser, Columbia Rivers raises new questions
8. UC Riverside scientist to explore how vegetation affects urban heat islands
9. Salmon smolt survival similar in Columbia and Fraser rivers
10. Alpine rivers hold important clues for preserving biodiversity and coping with climate change
11. Rivers are carbon processors, not inert pipelines
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... available in German . ... that uses the refraction of X-rays through a specimen ... with this method are often of much higher quality ... team of Prof. Franz Pfeiffer are particularly interested in ... including X-ray phase-contrast imaging. One main goal is ...
(Date:7/11/2014)... group members to reduce aggression and gain access to ... grooming activities shows a certain pattern across the day. ... Biology Letters . , Grooming between individuals in ... motives. To be groomed has hygienic benefits and is ... can provide access to infants, mating opportunities and high ...
(Date:7/11/2014)... transplantation of mesenchymal stem cells can stimulate neurogenesis in ... Alzheimer,s disease (AD) and improve tissue and function injury ... reported on the therapeutic effect of adipose-derived stem cells ... effect on oxidative injury and neurogenesis in the brain ... School of Life Sciences, Tsinghua University, China transplanted ADSCs ...
Breaking Biology News(10 mins):New simple setup for X-ray phase contrast 2Baboons groom early in the day to get benefits later 2
... victory gardens helped World War II era Americans on ... been as necessary and popular as they are today. ... the produce grown there becomes increasingly important. As ... vegetables for family consumption and planning ahead for the ...
... CITY, Sept. 27, 2010 If drivers are yakking on cell phones ... passenger or navigation system, they still can get directions from devices that ... index fingertips left or right, a University of Utah study found. ... The researchers say they don,t want their results to encourage dangerous and ...
... Santa Cruz, CA, USA and Oxford, UK, 27 ... Nanotechnology shows a new method of enzyme-controlled movement ... nanopore. The paper, by researchers at the University ... towards nanopore sequencing of DNA strands. The publication describes ...
Cached Biology News:Urban gardeners beware: There may be lead in your soil and food 2Let your fingers do the driving 2Let your fingers do the driving 3Let your fingers do the driving 4Let your fingers do the driving 5Nature Nanotechnology paper shows enzyme-controlled movement of DNA polymer through a nanopore 2
(Date:7/11/2014)... (PRWEB) July 11, 2014 Cayenne ... company specializing in the soft tissue reconstruction segment, ... Anchor System for surgeries involving the shoulder and ... through a novel, inserter-controlled deployment method. The unique ... partial deployment, anchor pull-out, or anchor displacement (also ...
(Date:7/10/2014)... 10, 2014 Deep Knowledge Ventures ... Forum on ‘Commercialising Longevity Research’ and welcomed a ... the London Bioscience Innovation Center for the event, ... Aging Analytics Ltd. The meeting highlighted the need ... research for age-related disease, as well as the ...
(Date:7/10/2014)... Francisco, CA (PRWEB) July 10, 2014 ... family closer together. The Archer Family purchased a ... contained within DNA, but ended up with a lifetime ... discoveries contained within the family members’ DNA genuinely brought ... had decided to search deeper into genetic history and ...
(Date:7/10/2014)... 10, 2014 EvoDerma ’s NOOME Anti-Aging ... rejuvenating device now comes with a second treatment cup to ... , The new cup is thinner on the edges for ... target rough, thin and uneven surfaces on the face, neck ... a stimulating treatment on areas such as the cheeks and ...
Breaking Biology Technology:Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 2Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 3DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 2DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 3DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 4DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 5DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 6Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5Introducing a New Bonus Treatment Cup for EvoDerma’s NOOME Anti-Aging Motion 2
... March 18 Syndication Inc., (Pink Sheets: SYNJ), Reports ... of ,Director of Technical Engineering,. The job of the ... budget development of the Company,s Pinnacle Energy Division. The ... wind turbine energy, bio-diesel fuel production, and microwave plasma ...
... 11dhTxB2 to assess aspirin effectDENVER, March 18 ... worldwide developer and marketer of diagnostic test kits, ... Test March 29 - 31 at the American ... The annual meeting will take place in Orlando, ...
... Despite the initial regulatory hiccups, the number of ... increase gradually. The patent expiry of key biopharmaceuticals ... driving the development of biosimilars. In addition, payers, ... drugs due to their safety, efficacy and affordability, ...
Cached Biology Technology:Syndication Inc. Seeks 'DIRECTOR OF TECHNICAL ENGINEERING' for 'PINNACLE ENERGY' - Its New Alternative Energy Subsidiary 2Corgenix to Exhibit AspirinWorks(R) Test at ACC.09 2Corgenix to Exhibit AspirinWorks(R) Test at ACC.09 3The Need for Safe and Affordable Biopharmaceuticals Drives the Development of the European Biosimilars Market, Says Frost & Sullivan 2The Need for Safe and Affordable Biopharmaceuticals Drives the Development of the European Biosimilars Market, Says Frost & Sullivan 3The Need for Safe and Affordable Biopharmaceuticals Drives the Development of the European Biosimilars Market, Says Frost & Sullivan 4
... The new Adept CE 4100 high ... superb flow precision, with software drive compensation, ... from 0.001-10mL/min are selectable in 0.001mL steps. ... are inert and bio-compatible., Pumps may be ...
... angle system, 220-240 V, is used to resolve ... fragments by pulsed field gel electrophoresis (PFGE). The ... pump, 14 x 13 cm casting stand with ... thick comb, screened cap, disposable plug molds, 12 ...
... Immuno-Blot PVDF membrane and filter paper ... PVDF membrane and two sheets of thick ... blotting membrane and filter paper sandwich. These ... high binding capacity immunoblotting fit Ready Gel-sized ...
... fromStreptomyces griseolusthat inhibits protein synthesis. Acts ... eukaryote ribosomes. Reported to induce apoptosis ... promyelocytic leukemia cells, Jurkat cells, ventricular ... intracellular signals and immediate early gene ...
Biology Products: