Multimodal x-ray and electron microscopy of the Allende meteorite
Open Access
- 6 September 2019
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science Advances
- Vol. 5 (9), eaax3009
- https://doi.org/10.1126/sciadv.aax3009
Abstract
Multimodal microscopy that combines complementary nanoscale imaging techniques is critical for extracting comprehensive chemical, structural, and functional information, particularly for heterogeneous samples. X-ray microscopy can achieve high-resolution imaging of bulk materials with chemical, magnetic, electronic, and bond orientation contrast, while electron microscopy provides atomic-scale spatial resolution with quantitative elemental composition. Here, we combine x-ray ptychography and scanning transmission x-ray spectromicroscopy with three-dimensional energy-dispersive spectroscopy and electron tomography to perform structural and chemical mapping of an Allende meteorite particle with 15-nm spatial resolution. We use textural and quantitative elemental information to infer the mineral composition and discuss potential processes that occurred before or after accretion. We anticipate that correlative x-ray and electron microscopy overcome the limitations of individual imaging modalities and open up a route to future multiscale nondestructive microscopies of complex functional materials and biological systems.Funding Information
- U.S. Department of Energy (DE-SC0010378)
- NSF Office of the Director (DMR 1548924)
- NSF Office of the Director (GRFP)
This publication has 77 references indexed in Scilit:
- MagnesiumK-edge XANES spectroscopy of geological standardsJournal of Synchrotron Radiation, 2013
- Quantitative x-ray phase imaging at the nanoscale by multilayer Laue lensesScientific Reports, 2013
- Integrated multimodal optical microscopy for structural and functional imaging of engineered and natural skinJournal of Biophotonics, 2012
- New directions in X-ray microscopyContemporary Physics, 2011
- Fractional crystallization of olivine melt inclusion in shock-induced chondritic melt veinPhysics of the Earth and Planetary Interiors, 2009
- Quantitative biological imaging by ptychographic x-ray diffraction microscopyProceedings of the National Academy of Sciences of the United States of America, 2009
- Multimodality Imaging: Beyond PET/CT and SPECT/CTSeminars in Nuclear Medicine, 2009
- An assessment of the resolution limitation due to radiation-damage in X-ray diffraction microscopyJournal of Electron Spectroscopy and Related Phenomena, 2009
- X-Ray Interactions: Photoabsorption, Scattering, Transmission, and Reflection at E = 50-30,000 eV, Z = 1-92Atomic Data and Nuclear Data Tables, 1993
- Ca-Al rich phases in the allende meteoriteEarth and Planetary Science Letters, 1970