Unveiling mineral biosignatures by combining multiscale structure and geochemistry using SAXS/WAXS/XRF
收藏ESRF Portal2027-01-01 更新2026-04-23 收录
下载链接：
https://doi.esrf.fr/10.15151/ESRF-ES-1729377164
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资源简介：
Microbially influenced sedimentary rocks can provide valuable insights about the rise and evolution of life on Earth. Still, while mineral biosignatures are considered more resilient than organic ones, the challenge for their study relies on identifying and differentiating the biogenic features from structures generated by abiotic processes over time. This proposal aims to tackle this problem by the multiscale characterization of microbial biominerals within laminated microbialites. The relative orientation of nanostructures and crystal structure will be investigated using scanning SAXS/WAXS, and the biogeochemical context obtained with simultaneous XRF mapping. Our request is 9 shifts on ID13, 17keV and 5 microns beam for simultaneous SAXS/WAXS and XRF measurements.
提供机构：
Vrije Universiteit Amsterdam,Faculty of Earth & Life Sciences,De Boelelaan 1085,1081 HV AMSTERDAM,NETHERLANDS,1081 HV ,AMSTERDAM,NETHERLANDS; Institut Fresnel,COMiX,Faculté des Sciences,Avenue Escadrille Normandie-Niémen,13397 MARSEILLE 20,13397,MARSEILLE,FRANCE; University of Granada,Mineralogy and Petrology,Avenida Fuente Nueva s/n,18071 GRANADA,SPAIN,18071 ,GRANADA,SPAIN
创建时间：
2027-01-01
