Navigation Links
From grains of volcanic glass to continental rifting: New Geosphere articles now online
Date:2/11/2013

n (CIB) of south-central Alaska make locating and determining the geometry of the Border Ranges fault system (BRFS), a major feature of the region, difficult. Niti Mankhemthong and colleagues use recently collected gravity data, available aeromagnetic data, and other geophysical information as constraints to develop plausible 2D cross-section models that better image the BRFS and related geologic structures of the CIB. Their models suggest the BRFS dips 50 to 70 degrees toward the west-northwest and extends to at least 15 km. Their integrated models also show a thick sequence of sedimentary rocks and volcanic rocks (6 to 20 km depth) overlying a high metamorphosed, hydrous rock body (serpentinite) at a depth of 16 to 34 km. The volcanic rocks and serpentinite are interpreted as possible sources of the south Alaska magnetic high over the CIB. The CIB's eastern boundaries are characterized by gravity and magnetic highs of the Border Range ultramafic and mafic assemblages (BRUMA), rocks high in iron and magnesium that have been derived from the lower crust and upper mantle. Formation of the BRUMA may be related to the presences of the deeper serpentinite body. A model that includes underplated sediments at the base of the crust beneath the northwestern Chugach Mountains (12 to 40 km) is consistent with an observed regional gravity low. The underplating may be associated with the process of subducting and shortening Yakutat microplate in south-central Alaska. This paper is part of the "Neogene Tectonics and Climate-Tectonic Interactions in the Southern Alaskan Orogen" series.


New thermochronometric constraints on the Tertiary landscape evolution of central and eastern Grand Canyon, Arizona
J.P. Lee et al., U.S. Geological Survey, Denver Federal Center MS974, Denver, Colorado 80225, USA. Posted online 5 Feb. 2013; http://dx.doi.org/10.1130/GES00842.1.

The Grand Canyo
'/>"/>

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. Understanding faults and volcanics, plus life inside a rock
2. Rubbing boulders, fossil mammal teeth, barrier islands, and a change in volcanic behavior
3. Finding life in the volcanic systems of the Antarctic Polar Front
4. Shimmering water reveals cold volcanic vent in Antarctic waters
5. NJIT, Chinas Bengbu Glass Institute sign agreement for R&D, training
6. Feel-good glass for windows
7. Glass offers improved means of storing UKs nuclear waste
8. Pulverized rocks, coral reefs, seawater chemistry, and continental collisions
9. Australia creates worlds first continental-scale mineral maps
10. Sea surface temperatures reach record highs on Northeast continental shelf
11. New grant to establish pan-continental bioinformatics research network in Africa
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/18/2014)... survey of emergency contraceptive pills in Peru found ... either of substandard quality or falsified. Many pills ... the wrong active ingredient. One batch had no ... the fake drugs, researchers at the Georgia Institute ... spectrometry to quickly assess suspected counterfeit drugs and ...
(Date:4/18/2014)... wildlife while feeding a world population predicted to ... holistic approach to conservation that considers human-altered landscapes ... Wildlife and the natural habitat that supports it ... world where at least three-quarters of the land ... rest is vulnerable to human-caused impacts such as ...
(Date:4/18/2014)... Ancient DNA adds a twist to the story of how ... published April 21 in the journal Proceedings of the ... bones of chickens that lived 200-2300 years ago in Europe, ... chickens may have looked far different from the chickens we ... traits we associate with modern domestic chickens -- such as ...
Breaking Biology News(10 mins):Counterfeit contraceptives found in South America 2Counterfeit contraceptives found in South America 3Stanford researchers rethink 'natural' habitat for wildlife 2Stanford researchers rethink 'natural' habitat for wildlife 3Stanford researchers rethink 'natural' habitat for wildlife 4Ancient DNA offers clues to how barnyard chickens came to be 2
... a well known cell surface protein inhibited prostate cancer ... disease that did not respond to hormone therapy, according ... of Urology and UCLA,s Jonsson Comprehensive Cancer Center. ... up regulated or turned on in prostate cancer that ...
... PHILADELPHIA Molecular biologist Jonathan Brody, Ph.D., ... Goney, Ph.D., research assistant professor, and member of ... in the Department of Pathology, Anatomy and Cell ... University have been awarded a W.W. Smith Charitable ...
... blood "metabolomics" profile of smokers immediately after they ... in cell death, inflammation, and other forms of ... Cancer Center, part of Georgetown University Medical Center. ... the Ninth AACR Frontiers in Cancer Prevention Research ...
Cached Biology News:UCLA researchers discover a potential target for therapy for patients with a deadly prostate cancer 2UCLA researchers discover a potential target for therapy for patients with a deadly prostate cancer 3Jefferson researchers receive W.W. Smith Charitable Trust 2Jefferson researchers receive W.W. Smith Charitable Trust 3Studying the metabolome of smokers, Lombardi researchers find early signs of damage 2
(Date:1/15/2014)... More than 5 million Americans are currently living ... will die with Alzheimer’s or another dementia, according to ... many Americans into looking for ways to improve their ... cognitive disorders. Jonathan Weisman, president of Biohack Pure, is ...
(Date:1/15/2014)... Rochester, NY (PRWEB) January 15, 2014 The ... cause a major disease. One of these latent viruses is ... is rheumatoid arthritis (RA). Rheumatoid arthritis (RA) is a chronic ... the theory, a study found that RA patients have high ...
(Date:1/15/2014)... January 15, 2014 2013 was a ... Brain State Technologies®. They saw continued independent research led ... who were awarded a $1 million grant from the ... “Brain and Behavior” a peer reviewed journal, Amy Grant ...
(Date:1/15/2014)... ON (PRWEB) January 15, 2014 AudioNotch ... experimental new therapy for the treatment of tinnitus. Patients ... tinnitus frequency, and over a period of weeks to months, ... Sound Therapy in two forms: Notched Music and Notched White ...
Breaking Biology Technology:Biohack Pure Offers 5 Tips for Increasing Memory in 2014 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3
... May 25, 2011 /PRNewswire/ -- Vermillion, ... today announced that the United States Patent and Trademark Office ... entitled "Saposin D and Fam3C are Biomarkers for Alzheimer,s Disease." ... as well as combinations that include these biomarkers. ...
... 2011 VIVUS, Inc. (NASDAQ: ... 3, placebo-controlled clinical trial of the investigational drug avanafil ... following a radical prostatectomy. The study (REVIVE-RP, TA-303) met ... erectile function as measured by the Sexual Encounter Profile ...
... 24, 2011 Spherix Incorporated (NASDAQ: ... in diabetes, metabolic syndrome and atherosclerosis, and providers ... supplement, biotechnology and pharmaceutical companies – today announced ... rule 5550(a)(2), which concerns minimum bid price listing ...
Cached Biology Technology:Vermillion Announces Notice of Allowance for Alzheimer Patent 2Vermillion Announces Notice of Allowance for Alzheimer Patent 3VIVUS Announces Positive Phase 3 Results of Avanafil in Radical Prostatectomy Patients 2VIVUS Announces Positive Phase 3 Results of Avanafil in Radical Prostatectomy Patients 3VIVUS Announces Positive Phase 3 Results of Avanafil in Radical Prostatectomy Patients 4VIVUS Announces Positive Phase 3 Results of Avanafil in Radical Prostatectomy Patients 5Spherix Regains Compliance With NASDAQ Listing Rule 2
Caliper offers a wide array of standard LabChip products designed to be used in combination with our AMS 90 and LabChip 3000 microfluidic platforms....
... Staccato Mini-Workstations provide fast and ... genomics, proteomics and drug development laboratories. ... of instrumentation to automate basic liquid ... Mini-Workstations are controlled with either Caliper's ...
Experion StdSens chips are the microfluidic chips used to perform standard-sensitivity RNA analysis (nanogram levels) with the Experion automated electrophoresis system. Each chip has the capacity to...
... submicron range are part of your production ... of particle size is important to you. ... detect the component populations in your sample ... Analyzer uses Photon Correlation Spectroscopy (PCS) , ...
Biology Products: