2. Paleomagnetic analysis 3. Petrographical analysis 1. Magnetic Surveys Acknowledgements: This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 730041 and the Spanish National Plan project 2016 ESP2015-70184-R. The main objective is to develop a methodology to achieve a better interpretation of future on ground geophysical characterization on - board planetary vehicles. The methodology is structured as follows: 1) In situ vector magnetic surveys and sample collection. This investigation allows having a preliminary magnetic signature of the crater. (Figures left below) 2) Laboratory analyses to improve the interpretation. These analyses involve two disciplines: a. Paleomagnetic analysis of collected samples performed at INTA and in the Complutense University of Madrid. (Figures below) b. Petrographical analysis performed at Göttingen University. (Figures on the right) 3) The experimental results are complemented with magnetic models which simulate the magnetic signature of the crater as a whole. Objectives and methodology Example of IRM analysis (Sample PA 15) is shown in the figure above. All the studied samples have at least 4 magnetic carriers. First component identified is titanomagnetite (Ti-Mt). The second component represents probably a combination of a paramagnetic phase and titano- hematite, based on the trend of the curve and supported by the petrographic analysis (SEM photo in the upper left corner and the petrographic analysis, which show a significant amount of ilmenites and hematites). The other components correspond to a minority composition and low magnetic moment (< 0.2 emu/g). In the upper right figure the percentages of contribution of the different magnetic components are calculated for all investigated samples along the transect of the crater. Improved understanding of magnetic signatures of basaltic lava flows and cones with implication for extraterrestrial exploration Amanda Arlensiú Ordóñez Cencerrado1, Marina Díaz-Michelena1, Francisco Ríos2, and Rolf Kilian2 (1) INTA, Torrejón de Ardoz, Spain, (2) University of Trier, Germany PS 2.3 References: Day, R., Fuller, M. and Schmidt, V. A. (1977). Phys. Earth Planet. Inter., 13: 260-267; Dunlop, D.J. (2002). J. Geophys. Res., 107 (B3), 10.1029; Díaz-Michelena, M., et al. (2016). Geosci. Instrum . Meth., 5: 127-142.; Diaz-Michelena, M. & Kilian, R. (2015). Phys. Earth Planet. Inter, 248: 35 – 54. D’Orazio, M., et al (2000). Tectonophysics, 321: 407–427; Ejima, T., et al. (2013). Mineral. Petrol. Sci., 108: 25-36; Filiberto, J., et al. (2016). 47th Lunar and Planetary Science Conference (2016), 2171 p; Gunnlaugsson, H.P et al. (2006). Phys. Earth Planet. Inter, 154: 276–289; Haggerty, S.E. & Baker, I. (1967). Contrib. Mineral. Petrol. 16, 233–257; Kruiver, P. P., et al. (2001). Earth Planet. Sci. Lett., 189 (3), 269-276; Lowrie, W. (1990). Geophys. Res. letters, 17 (2), 159-162; Moskowitz, B.M., et al. (1998). Earth Planet. Sci. Lett., 157: 141–149; Peters, C., & Dekkers, M. J. (2003). Phys. Chem. Earth, Parts A/B/C, 28 (16): 659-667; Peters, C., & Thompson, R. (1998). J. Magn. Magn. Mater., 183 (3): 365-374; Rasmussen, H., et al. (2014). Geochim. Cosmochim. Acta, 134: 275-288; Roeder, P.L. (1994). Canadian Mineralogist, 32: 729–746; Tauxe, L. (2010). Essentials of paleomagnetism. Univ of California Press. Chapter 7.7 • NRM and susceptibility to calculate the Köningsberger ratios which show a predominant remanent magnetization of the rocks. • Hysteresis loops for the Day plots to ascertain the grain size and the domain structure information. • Coercivity spectrum based on Isothermal Remanent magnetization (IRM) to identify magnetic carriers (Tauxe, 2010, Kruvier et al. 2001). Day plot (Day et al. 1977) with the analyzed rock samples in between Single and Multidomain (SD and MD) and Pseudo Single Domain (PSD) areas. This is compatible with a content in MD Ti-Mt and some SD ones as an al