Nondestructive microsampling by surface exffoliation in geology and archeology

0558337 - ARÚ 2023 RIV BG eng C - Conference Paper (international conference)
Bartůněk, V. - Lojka, M. - Hrubý, P. - Danielisová, Alžběta - Jankovský, O.
Nondestructive microsampling by surface exffoliation in geology and archeology.
21st International Multidisciplinary Scientific GeoConference SGEM 2021. Vol. 21. Sofia: International Multidisciplinary Scientific GeoConference, 2021 - (Trofymchuk, O.; Rivza, B.), s. 73-82. SGEM International Multidisciplinary Scientific GeoConference. ISBN 978-619-7603-20-0. ISSN 1314-2704.
[International Multidisciplinary Scientific GeoConference SGEM 2021 /21./. Albena (BG), 16.08.2021-22.08.2021]
Institutional support: RVO:67985912
Keywords : microsampling * SEM-EDS * Raman spectroscopy * tape * optical microscopy * IR spectroscopy
OECD category: Archaeology

One of problems in terrain surveys in geology and archeology is sample obtaining. Among all possible complications are limits in sample volumes and masses, including possible toxicity or radioactivity and also the legal status of the samples. In this contribution, these problems are addressed by application of microsampling by surface exfoliation of geological objects and archaeologic artifacts using various tapes and subsequent analyses of the resulting samples. Among method used were both optical and electron microscopy. Quick to use portable and stationary methods of optical microscopy is used. Scanning electron microscopy was used with Energy-dispersive X-ray spectroscopy to localize specific 2D surface charts of elemental compositions which response to the surface topography in original samples. Also Raman spectroscopy and X-ray powder diffraction were evaluated. Both methods yield results depending on sample type and experimental setup but are in general usable. The method is validated and operational with some limits and can be marked as vital possible alternative for researchers working in terrain or for obtaining of surface information without damaging of the studied object.
Permanent Link: http://hdl.handle.net/11104/0332058