RT Conference Proceedings
T1 Chemical Fingerprints in an Underwater Archaeological Shipwreck using a Remote Laser-Induced Breakdown Spectroscopy System
A1 López-Claros, Marina
A1 Fortes-Román, Francisco Javier
A1 Guirado, Salvador
A1 Laserna-Vázquez, José Javier
K1 Espectroscopía de plasma inducido por láser
AB Nowadays, one of the most important areas of interest in archeology is the characterization ofthe submersed cultural heritage. Mediterranean Sea is rich in archaeological findings due tostorms, accidents and naval battles since prehistoric times. Chemical analysis of submergedmaterials is an extremely valuable source of information on the origin and precedence of thewrecks, and also the raw materials employed during the manufacturing of the objects found inthese sites. Sometimes extracting the archeological material from the marine environment is not practical due to the size of the sample, or is not permitted by the legislation or preservation practices. In these cases, the in-situ analysis turns into the only alternative.The versatility of laser-induced breakdown spectroscopy (LIBS) has been successfully tested in oceanography [1]. Advantages such as rapid and in situ analysis with no sample preparationmake LIBS a suitable alternative for field measurements. A fiber-optics-based remoteinstrument has been designed for the recognition and identification of artworks in underwaterarchaeological shipwrecks. The LIBS prototype featured both single-pulse (SP-LIBS) and multipulse excitation (MP-LIBS). The use of multi-pulse excitation allowed an increased laser beam energy (up to 95 mJ) transmitted through the optical fiber. This excitation mode results in animproved performance of the equipment in terms of extended range of analysis (to a depth of 50 m) and a broader variefy of samples to be analyzed (i.e., rocks, marble, ceramics and concrete).In this work, parametric studies in the laboratory such as gas flow pressure, beam focalconditions and angle of incidence, among others, were performed to optimize the best conditions for field analysis. Finally, results obtained in these field trials confirmed the capability of remole LIBS for in-situ analysis of underwater archeological samples.
YR 2015
FD 2015-09-04
LK http://hdl.handle.net/10630/10212
UL http://hdl.handle.net/10630/10212
LA spa
NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026