AI Article Synopsis
- The ESRF ID16B-NA Nanoanalysis beamline has successfully achieved XRF imaging at resolutions of a few tens of nanometers on rare geological samples like meteorites and diamond inclusions.
- Analysis revealed that the bubblelike inclusions in the NWA 6693 meteorite are primarily made up of chromium-rich phases, with some nickel and calcium inclusions also found.
- In the SL05 diamond from Brazil, numerous inclusions smaller than 1 μm were identified, including a notable ringwoodite, prompting further studies on the iron-rich inclusions present.
Article Abstract
The new ESRF ID16B-NA Nanoanalysis beamline has been applied for the first time for XRF imaging with a resolution level down to a few tens of nanometers on rare geological materials: meteoritic fragments from achondrite NWA 6693 and diamond inclusions. The instrument proved to be an extremely valuable tool for mapping samples containing submicrometer heterogeneities. It was discovered that the track of bubblelike inclusions in NWA 6693 consists mainly of Cr-rich phases. Some inclusions containing Ni and Ca were also detected. In diamond SL05, originating from the Juina region in Brazil, multiple inclusions were analyzed with dimensions smaller than 1 μm. Raman spectrometry measurements indicated the presence of a ringwoodite inclusion in this diamond; the detection of several iron-rich inclusions justifies further investigation of this material.
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| http://dx.doi.org/10.1021/ac503764h | DOI Listing |
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