Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Going nano: A new step toward understanding the processes governing freshwater ooid formation

Abstract:
Muriel Pacton et al., Geological Institute, ETH-Zürich, Rämistrasse 101, 8092 Zürich, Switzerland. Posted online 27 April 2012; doi: 10.1130/G32846.1.

Going nano: A new step toward understanding the processes governing freshwater ooid formation

Boulder, CO | Posted on April 30th, 2012

Ooids are well-rounded sand grains composed of a nucleus encompassed by poorly to well-developed concentric micritic laminae. Results presented here by Muriel Pacton and colleagues challenge the standard hypothesis that ooids are indicators of turbulent hydrodynamic conditions by showing microbes as the main agent in ooid cortex formation in a quiescent environment. Pacton and colleagues combine cutting-edge techniques (i.e., NanoSIMS ion mapping, scanning electron microscopy imaging and analysis, and secondary ion mass spectrometry delta-13C and delta-18O isotopic analyses) to identify the microbial metabolism involved in ooid cortex formation. The combined elemental mapping and stable isotope study of freshwater ooids indicate that lamina formation is the result of the mineralization of organic substances produced by photosynthetic microbes. This study illustrates the importance of physico-chemical conditions versus organo-mineralization in determining the distribution, abundance, and cortical mineralogy of oolitic sands throughout the Phanerozoic stratigraphic record of carbonate accumulation. These new data further highlight the advantage of using a nano-scale approach to better discern between the various biotic and abiotic processes linked to carbonate precipitation.

####

For more information, please click here

Contacts:
Kea Giles

Copyright © Geological Society of America

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

Imaging

The random raman laser: A new light source for the microcosmos May 4th, 2015

News and information

The random raman laser: A new light source for the microcosmos May 4th, 2015

Defects in atomically thin semiconductor emit single photons: Researchers create optically active quantum dots in 2-D semiconductor for the first time; may have applications for integrated photonics May 4th, 2015

Arrowhead to Report Fiscal 2015 Second Quarter Financial Results May 4th, 2015

From brittle to plastic in 1 breath: Rice University theorists show environments can alter 2-D materials' basic properties May 4th, 2015

Discoveries

The random raman laser: A new light source for the microcosmos May 4th, 2015

From brittle to plastic in 1 breath: Rice University theorists show environments can alter 2-D materials' basic properties May 4th, 2015

Nanoparticles in consumer products can significantly alter normal gut microbiome May 4th, 2015

Antibacterial Ceramic Nanoparticles, Appropriate Material for Medical Devices May 3rd, 2015

Announcements

Defects in atomically thin semiconductor emit single photons: Researchers create optically active quantum dots in 2-D semiconductor for the first time; may have applications for integrated photonics May 4th, 2015

Arrowhead to Report Fiscal 2015 Second Quarter Financial Results May 4th, 2015

From brittle to plastic in 1 breath: Rice University theorists show environments can alter 2-D materials' basic properties May 4th, 2015

Nanoparticles in consumer products can significantly alter normal gut microbiome May 4th, 2015

Tools

Oxford Instruments announces winners of the 2015 Sir Martin Wood Science Prize for China May 2nd, 2015

Nanometrics to Present at the B. Riley & Co. 16th Annual Investor Conference May 2nd, 2015

Time Dependant Spectroscopy of Microscopic Samples: CRAIC TimePro™ software is used with CRAIC Technologies microspectrometers to measure the kinetic UV-visible-NIR, Raman and fluorescence spectra of microscopic sample areas May 2nd, 2015

ORNL researchers probe chemistry, topography and mechanics with one instrument May 2nd, 2015

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project