Navigation Links
Geology tracks eruptions, earthquakes, erosion, extinctions & more
Date:7/12/2013

n ancient (Late Cretaceous) shallow subduction zone. Zircon U-Pb ages from rocks belonging to the lower plate of the subduction zone indicate that these rocks were deposited at ca. 100 Ma. The same zircon grains reveal a significant shift in oxygen isotope values, which resulted from subduction and metamorphism. These zircon age and isotopic results provide evidence for upward percolation of volatile phases and/or partial melt from the lower plate into the upper plate of the shallow subduction zone. This event coincided with voluminous magmatism in Southern California. We suggest that as the downgoing plate of the subduction system flattened, rocks of the lower plate were plastered to the base of the upper plate, which triggered an episode of copious magmatism. Shallow subduction of the Cocos plate beneath central Mexico represents a close modern analog to this model.


Upwelling, rifting, and age-progressive magmatism from the Oki Daito mantle plume
Osamu Ishizuka et al., Institute of Geology and Geoinformation, Geological Survey of Japan/AIST, Central 7, 1-1-1, Higashi, Tsukuba, Ibaraki 305-8567, Japan. First published on 11 July 2013, http://dx.doi.org/10.1130/G34525.1.

Until now, one of the world's major volcanic provinces has remained undetected beneath the Philippine Sea. The extent and size of the volcanism has been made clear by a study of material recovered from this region by a team of Japanese and UK scientists. A stream of hot rock from deep in the Earth, known as a mantle plume, first made contact with the Philippine Sea bed 51 million years ago. This produced volcanoes covering an area of 250,000 cubic kilometers, and resulted in a major "crack" in the Earth's crust that generated further volcanic activity. Analyzing the age and chemical composition of the lava from these submarine volcanoes has revealed that this mantle plume, called the Oki-Daito plu
'/>"/>

Contact: Kea Giles
kgiles@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 19 20 21

Related biology news :

1. Seismic zones, river deltas, landslides, fossil reptiles, and more new Geology science
2. From 503-million-year-old fungi to recent earthquakes: New Geology posted ahead of print
3. Sandy beaches, hydrocarbon reservoirs, tectonic tilting: Its all about geology
4. Geosphere: How geology, technology, modeling, and mapping see into Earths past and present
5. Geologys Mystery Interval, the Great Deepening, and the largest kill-off in Earth history
6. GEOLOGY adds 30 new articles online
7. GEOLOGY speeding top science to online platform
8. GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury
9. GEOLOGY starts 2013 with 25 new articles posted online ahead of print
10. New Geology study raises questions about long-held theories of human evolution
11. The Geological Society of America Journal Geology: Dynamic geoscience
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/24/2014)... pleased to announce that it has assumed ownership of ... University of Wisconsin. , The Journal of ... journal that publishes papers on all aspects of the ... molecular to the ecological -- as well as their ... individuals and institutions, and it provides a reasonably priced ...
(Date:4/24/2014)... improved with new insights into the make-up of tropical ... Amazon Basin have revealed unprecedented detail of the size, ... comparing satellite maps with hundreds of field plots. ... accurately the amount of carbon each tree can store. ... in which trees are given a cash value according ...
(Date:4/23/2014)... Africa,s Congo rainforest, the second-largest tropical rainforest in the ... the past decade. , The study, led by Liming ... York, shows between 2000 and 2012 the decline affected ... research, published Wednesday in Nature , is one ... effects of long-term drought on the Congo rainforest using ...
Breaking Biology News(10 mins):ESA to publish the Journal of Insect Science 2Amazon rainforest survey could improve carbon offset schemes 2NASA satellites show drought may take toll on Congo rainforest 2NASA satellites show drought may take toll on Congo rainforest 3
... a lot like a banana, strawberry and apple smoothie: Blended ... especially if you have never tasted the fruits before. ... has an incredible variety of known compounds. And looking closely ... time -- at a scale of 50 nanometers (1 nanometer ...
... latest American Chemical Society (ACS) News Service Weekly PressPac with ... News.,Please credit the individual journal or the American Chemical Society ... FOR IMMEDIATE USE EXCEPT ARTICLE #5, which is embargoed for ... #1 FOR IMMEDIATE RELEASE Study calls for action ...
... Spanish . , Fast identification of animal ... a guarantee of quality for consumers and producers. Consumption of ... of good taste and maximum gastronomic quality. In the last ... species, already exceeding the Spanish borders: Iberian ham, dried meat, ...
Cached Biology News:First nanoscale image of soil reveals an 'incredible' variety, rich with patterns 2American Chemical Society's Weekly PressPac -- April 23, 2008 2American Chemical Society's Weekly PressPac -- April 23, 2008 3American Chemical Society's Weekly PressPac -- April 23, 2008 4American Chemical Society's Weekly PressPac -- April 23, 2008 5American Chemical Society's Weekly PressPac -- April 23, 2008 6American Chemical Society's Weekly PressPac -- April 23, 2008 7American Chemical Society's Weekly PressPac -- April 23, 2008 8New computer applications allow to classify Iberian pig meat automatically 2
(Date:1/14/2014)... 14, 2014  3D Communications, a leading provider of strategic communications services ... media events in the United States and ... Virginia Cox , JD, is returning to the firm,s ... re-joins 3D after more than two years of service as Associate ...
(Date:1/14/2014)... BETHESDA, Md. , Jan. 14, 2014  Organovo announced ... from the National Institutes of Health (NIH) to help ... effective treatments to patients on a faster timeline. Organovo ... Sciences (NCATS) and the National Eye Institute (NEI) to ...
(Date:1/14/2014)... Global Record Systems, LLC, (GRS), a ... for patients, physicians, the biopharmaceutical industry, regulators, payers, ... signing of a three-year Research Collaboration Agreement (RCA) ... This initiative is designed to generate disruptive ...
(Date:1/14/2014)... 2014 During the 1600’s through the 1800’s ... Doctor’s Plague.” In this time period, doctors did not know ... times, to the death of vulnerable patients. In the same ... they may be unwittingly transmitting herpes viruses to their patients. ...
Breaking Biology Technology:Former FDA Associate Commissioner Returns To 3D Communications 2Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 2Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 3
... announced today that Mr. Paulo F. Costa has been elected ... Costa is the former President and Chief Executive Officer of ... experience in operations and commercialization in the pharmaceutical industry, Mr. ... , "We are privileged to have Mr. Costa join MacroGenics, ...
... Additions to the Human Protein Atlas, available exclusively through Sigma-Aldrich, ... Antibodies , , ST. LOUIS, June 23 Sigma-Aldrich ... over 2,300 antibody additions to its Prestige Antibodies(R) powered by ... the total number of highly validated antibodies to over 6,100. ...
... VIENNA, Austria, June 23 MIG Fonds and ... & Private Equity Award,competition, hosted by the industry magazine Boerse-Express ... venture fund and the Austrian biotechnology company as well as ... Last Tuesday MIG Fonds and AFFiRiS ...
Cached Biology Technology:Paulo F. Costa Joins MacroGenics Board of Directors 2Paulo F. Costa Joins MacroGenics Board of Directors 3Sigma-Aldrich and Atlas Antibodies Announce 2,300 New, Highly Validated Prestige Antibodies(RM) 2Sigma-Aldrich and Atlas Antibodies Announce 2,300 New, Highly Validated Prestige Antibodies(RM) 3Sigma-Aldrich and Atlas Antibodies Announce 2,300 New, Highly Validated Prestige Antibodies(RM) 4AFFiRiS AG: 1st Place in Venture Capital & Private Equity Awards for MIG Fonds and AFFiRiS 2AFFiRiS AG: 1st Place in Venture Capital & Private Equity Awards for MIG Fonds and AFFiRiS 3
... Progenitors, Rabbit, and media. Cryo-preserved cells in ... at passage 25 (approx), supplied with kit ... is supplied as a long-term culture, and ... months of continuous growth from the date ...
... System provides a simple, rapid and ... glutathione-S-transferase (GST) fusion proteins. Immobilized glutathione ... to isolate GST-tagged protein directly from ... either a manual (requires use of ...
... harvesting of cells • Blade design minimizes ... the growth surface • Designed for use ... wrapped • Sterilized by gamma radiation and ... a new product number, created to easily ...
... Progesterone Receptor (PR) Competitor Assay Kits ... novel progesterone receptor binding compounds using ... utilizes a fusion of glutathione transferase ... human progesterone receptor [PR-LBD(GST)] and a ...
Biology Products: