ââLearning about the degree of aqueous alteration of NEOs from ...

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CHONDRITE GROUPS Weisberg et al. (2006) • Different degrees of aqueous alteration and metamorphism are found • The CCs can be classified according the estimated T required to produce the petrographic types (Dotto et al., 2005) • The highest hydrated groups correspond to the carbonaceous chondrites, particularly: CMs, CRs, and CIs • At the Institute of Space Sciences (CSIC-IEEC) we work in the lab focusing on the role of aqueous alteration on primitive chondrites and performing remote studies of comets • Particularly, the reflectance spectra are taken in the UPC Center for Research in NanoEngineering Dotto et al. (2005)
IR SPECTROMETER IR BEAM SAMPLE haz IR Muestra P • Small chips of each meteorite were grinded using an agate mortar • Powders were carefully located in between a diamond detector of a Smart Orbit ATR (Attenuated Total Reflectance) IR spectrometer. • This instrument provides high resolution internal reflection spectra of meteorite powders following standard procedures and using a diamond detector
Page 1 and 2: “Learning about the degree of aqu
Page 3: WHAT WE KNOW ABOUT CARBON-RICH RICH
Page 7 and 8: ADDITIONAL STUDIED CHONDRITES • S
Page 9 and 10: MAIN ABSORPTION BANDS • The absor
Page 11 and 12: CO and CV CHONDRITE GROUPS • The
Page 13 and 14: CONCLUSIONS • Laboratory analyses

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