Navigation Links
How long does it take to make a natural fracture?
Date:8/4/2014

="_blank" href="http://dx.doi.org/10.1130/B30842.1">http://dx.doi.org/10.1130/B30842.1.

This article by Ben McGee and colleagues presents data from a mountain belt in central-western Brazil that indicate that collision between local tectonic plates and subsequent mountain building occurred later than previously thought. The Paraguay Mountain Belt in central South America developed in response to the collision between the Amazonian Craton, the So Francisco Craton and the Paranapanema Block. The alleged ~620 million year age of mountain building has recently been questioned by geologic data that indicate the closing stages of mountain building occurred well into Cambrian time. The timing of deposition and source areas for these sedimentary rocks overlying the Amazonian Craton are investigated here using integrated U-Pb and Hf isotope data of small minerals called zircons from rocks within this sequence. Ben McGee and colleagues analyzed 742 detrital zircon ages from samples taken from the base to the top of this sedimentary succession. Maximum depositional ages from the uppermost part of this sequence of rocks, the Diamantino Formation, indicate that final deposition began no earlier than 560 (plus or minus 13) million years ago and possibly as young as the Cambrian. Given that zircon inheritance in these rocks continues up until this age and that known Amazonian Craton ages are older than ~950 million years, McGee et al. consider other potential sources for these sediments. This is achieved by integrating the U-Pb detrital zircon data with Hf isotopic data from these zircons. The Hf signature is consistent with a predominantly Amazonian source until the early-Neoproterozoic at which point the signal becomes significantly more evolved. These data, when combined with other evidence discussed here, are consistent with an ocean to the east of the present-day Amazonian Craton that didn't close until the latest Ediacaran/Cambrian.


'/>"/>

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

Page: 1 2 3 4 5 6 7

Related biology news :

1. Biology professor secures grant to save West Virginias primary natural history collection
2. Validity CTO to Present Natural ID Solutions for Improving Mobile Risk Management and User Experience at NFC Solutions Summit 2012
3. Honoring the fundamental role of microbes in the natural history of our planet
4. Resveratrol may be a natural exercise performance enhancer: U of A medical research
5. Naturally adhesive
6. No matter the drilling method, natural gas is a much-needed tool to battle global warming
7. The ecology of natural gas
8. Bringing natural history collections out of the dark
9. Health care savings, naturally
10. Eco-computer with a natural wood look
11. Ben-Gurion University of the Negev receives $450,000 grant to conduct oil and natural gas research
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
How long does it take to make a natural fracture?
(Date:9/30/2014)... tetrachloroethylene (PCE) in drinking water may increase the ... a new study led by a Boston University ... published in the journal Environmental Health , ... among 1,766 women in Cape Cod, Ma., where ... the early 1980s by the installation of vinyl-lined ...
(Date:9/30/2014)... on Earth, but when the climate changes and temperatures ... The amount of time needed to adjust to new ... in the future, reveals a new study from researchers ... journal Proceedings of the Royal Society B . ... of greenhouse gases in the atmosphere. The greenhouse effect ...
(Date:9/30/2014)... in urban and farm runoff in Hawaii is causing ... , The study, published Tuesday in the peer-reviewed ... the runoff ends up in algae that the turtles ... eyes, flippers and internal organs. , Scientists at Duke ... and Atmospheric Administration (NOAA) conducted the study to better ...
Breaking Biology News(10 mins):Contaminated water linked to pregnancy complications, BU study finds 2Shape up quickly -- applies to fish, too! 2Pollution linked to lethal sea turtle tumors 2Pollution linked to lethal sea turtle tumors 3
... University] The cactus, stalwart of the desert, has quite ... found the world over. In a paper published in ... Academy of Sciences , Brown University biologists and colleagues have ... and 10 million years ago and coincided with species explosions ...
... asses are descendants of the original ancestors of the horse ... now in danger of extinction, largely as a direct result ... Walzer,s group has been working together with colleagues in Germany, ... currently restricted to areas in Mongolia, China, India, Iran and ...
... ... cattle in native pasturelands in Brazil,s Pantanal and Cerrado regions can benefit ... Conservation Society. , The technique, which has been adapted ... small areas for shorter periods of time before moving onto other pastures. ...
Cached Biology News:Succulent plants waited for cool, dry Earth to make their mark 2Succulent plants waited for cool, dry Earth to make their mark 3A boring life -- the Asiatic wild ass in the Mongolian Gobi 2Grazing as a conservation tool 2
(Date:9/30/2014)... 30, 2014 CORD:USE Cord Blood Bank – ... it has entered into an Equity and Exclusive Services ... licensed a series of patented technologies for the isolation of ... applications.  Tianhe is performing Phase I/II clinical trials in ... using Tianhe,s Stem Cell Educator Therapy showing ...
(Date:9/30/2014)... (PRWEB) September 30, 2014 ... solutions for drug discovery and related life ... consortium has chosen Genedata Selector as its ... (NGS) data. FUNGITECT is a European consortium ... fungal diseases via individualized anti-fungal drug therapies. ...
(Date:9/30/2014)... , Sept. 30, 2014  KemPharm, Inc., ... discovery and development of proprietary new molecular entity ... Patent and Trademark Office (USPTO) issued U.S. Patent ... entitled, "Benzoic Acid, Benzoic Acid Derivatives and Heteroaryl ... Making and Use Thereof." The patent, ...
(Date:9/30/2014)... , Sept. 30, 2014 FemCap Inc., ... health announces its receipt of a patent No: US, ... cup has also received FDA clearance in the U.S., ... the CE in Europe. This patent is related to its ... this issuance, the company is releasing FemmyCycle Teen, a ...
Breaking Biology Technology:CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 2CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 3CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 4FUNGITECT Consortium Adopts Genedata Selector as Data Analysis Platform for Anti-fungal R 2FUNGITECT Consortium Adopts Genedata Selector as Data Analysis Platform for Anti-fungal R 3KemPharm, Inc. Receives Patent from the USPTO for Novel Prodrug of Hydromorphone, KP511 2The FemmyCycle 2
... 16, Shire plc (LSE: SHP, NASDAQ: SHPGY ... U.S. District Court of the Southern District of,New York ... Shire,s patents: U.S. Patent No. 5,968,976 (",976 Patent"); U.S. ... , The lawsuit was filed ...
... and megabase capacity for the next generation sequencing ... febit today announced the official launch ... several biomedical studies of early access customers over ... and deep sequencing coverage for a broad range ...
... tester machine for medical pouches & sachets from Ireland-based manufacturer Sepha. ... ... A leak tester machine for pharmaceutical and medical pouches ... makes its U.S. market debut through U.S. distributor Service Industries ...
Cached Biology Technology:Shire Files Lawsuit Against Barr Laboratories for Infringement of FOSRENOL(R) (Lanthanum Carbonate) Patents 2Automated Sequence Capture for Next-Generation Sequencing Paves the Way for Personalized Medicine 2Automated Sequence Capture for Next-Generation Sequencing Paves the Way for Personalized Medicine 3U.S. Distributor Debut for PAKSCAN - a Pouch & Sachet Leak Tester Machine from Ireland-based Sepha Ltd. 2U.S. Distributor Debut for PAKSCAN - a Pouch & Sachet Leak Tester Machine from Ireland-based Sepha Ltd. 3
The F40 pump maintenance kit is used to service one F40 pump of a BioLogic DuoFlow workstation. It includes 2 piston seals, 4 check valves, seal removal tool, and 2 O-rings....
...
...
...
Biology Products: