Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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

News and information

'Nano-hashtags' could provide definite proof of Majorana particles: Eindhoven network of nanowires gives particles the space to exchange places August 23rd, 2017

DNA sensor system developed for specific and sensitive measurement of cancer-relevant enzyme activity August 23rd, 2017

Lego proteins revealed: Self-assembling protein complexes based on a single mutation could provide scaffolding for nanostructures August 23rd, 2017

Heating quantum matter: A novel view on topology: Physicists demonstrate how heating up a quantum system can be used as a universal probe for exotic states of matter August 22nd, 2017

Imaging

Tokai University research: Nanomaterial wrap for improved tissue imaging August 21st, 2017

Thermo Fisher Scientific Advances Cryo-EM Leadership to Drive Structural Biology Discoveries: New Thermo Scientific Krios G3i raises bar for performance, automation and time-to-results Breakthrough Thermo Scientific Glacios provides a cryo-EM entry path for a broader range of res August 8th, 2017

New Quattro Field Emission ESEM Emphasizes Versatility and Ease of Use: Thermo Scientific Quattro ESEM allows materials science researchers to study nanoscale structure in almost any material under a range of environmental conditions August 8th, 2017

Thermo Fisher Scientific’s New Talos F200i S/TEM Delivers Flexible, High-Performance Imaging: New compact S/TEM can be configured to meet specific imaging and analytical requirements for materials characterization in research laboratories August 8th, 2017

Discoveries

'Nano-hashtags' could provide definite proof of Majorana particles: Eindhoven network of nanowires gives particles the space to exchange places August 23rd, 2017

DNA sensor system developed for specific and sensitive measurement of cancer-relevant enzyme activity August 23rd, 2017

Lego proteins revealed: Self-assembling protein complexes based on a single mutation could provide scaffolding for nanostructures August 23rd, 2017

Heating quantum matter: A novel view on topology: Physicists demonstrate how heating up a quantum system can be used as a universal probe for exotic states of matter August 22nd, 2017

Announcements

'Nano-hashtags' could provide definite proof of Majorana particles: Eindhoven network of nanowires gives particles the space to exchange places August 23rd, 2017

DNA sensor system developed for specific and sensitive measurement of cancer-relevant enzyme activity August 23rd, 2017

Lego proteins revealed: Self-assembling protein complexes based on a single mutation could provide scaffolding for nanostructures August 23rd, 2017

Heating quantum matter: A novel view on topology: Physicists demonstrate how heating up a quantum system can be used as a universal probe for exotic states of matter August 22nd, 2017

Tools

Nagoya physicists resolve long-standing mystery of structure-less transition: Nagoya University-led team of physicists use a synchrotron radiation X-ray source to probe a so-called 'structure-less' transition and develop a new understanding of molecular conductors August 21st, 2017

Tokai University research: Nanomaterial wrap for improved tissue imaging August 21st, 2017

Scientists from the University of Manchester and Diamond Light Source work with Deben to develop and test a new compression stage to study irradiated graphite at elevated temperatures August 15th, 2017

FRITSCH • Milling and Sizing! Innovations at POWTECH 2017 - Hall 2 • Stand 227 August 9th, 2017

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