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- aggregation classification "C3".
- aggregation creator B47161.
- aggregation creator B47162.
- aggregation creator B47163.
- aggregation creator B47164.
- aggregation creator B47165.
- aggregation creator B47166.
- aggregation creator B47167.
- aggregation creator person.
- aggregation creator person.
- aggregation creator person.
- aggregation date "2008".
- aggregation hasFormat 970238.bibtex.
- aggregation hasFormat 970238.csv.
- aggregation hasFormat 970238.dc.
- aggregation hasFormat 970238.didl.
- aggregation hasFormat 970238.doc.
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- aggregation hasFormat 970238.yaml.
- aggregation isPartOf urn:isbn:9789536690732.
- aggregation language "eng".
- aggregation publisher "Ruđer Bošković Institute".
- aggregation subject "Earth and Environmental Sciences".
- aggregation title "SR-XRF analysis of fluid-inclusions in cloudy diamonds from Koffiefontein, South-Africa".
- aggregation abstract "The study of fluid inclusions within diamonds from different locations around the world gives important information on subduction processes (e. g. of oceanic lithosphere material) and the diamond growth. For this, cloudy diamonds from Koffiefontein and Finsch mines were studied systematically at the European Synchrotron Radiation Facility (ESRF) at the beamlines ID18F and ID22. In addition, XANES measurements (at HASYLAB beamline L) and Raman Spectroscopy (at JWG University) were performed on the same inclusion suite to complete the identification of the inclusions. To avoid the loss of information when separating the solid part of the inclusion from the diamond host and releasing the gas and/or fluid content, dedicated measurement techniques must be applied to study these fluid inclusions “in-situ”. In this work, the experiment performed at ID22 to investigate very tiny fluid inclusions in a specially prepared Koffiefontein diamond (Kf07-4) is demonstrated. The application of the confocal XRF method appears to be essential to unambiguously retrieve information from within the diamond needle on the trace element and sub-micron level. In such way, the distribution of elements such as Cl, Br, K, Ca, Ti, Mn, Fe, Ni and Cu could be studied in great detail. The extreme in-homogenous distribution of these elements in a single diamond was surprising. And whether this distribution indicates immiscibility during entrapment of the fluid phase or subsequent separation into a solid, fluid and probably gas phase during uplift of the diamond host remains speculative at the moment and is a matter of our ongoing measurements. These studies should also provide a standard reference for future investigations on fluid inclusions entrapped in “superdeep” diamonds from Kankan (Guinea) and Juina (Brazil).".
- aggregation authorList BK119463.
- aggregation endPage "101".
- aggregation startPage "101".
- aggregation isDescribedBy 970238.
- aggregation similarTo LU-970238.