FAQs ] Overview ] Missions ] Current brassboard ] Instrument ] Applications ]

Terrestrial life (contaminate) on Martian meteorite Los Angeles

Red spots observed on the flat sawn surface of B side of the rock chip have a characteristic Raman spectrum of organic material (Fig. 3). The major peaks near 1361, 1490, 1556, and 1603 cm-1 match the characteristic I, II, III, and IV peaks of metalloporphyrin compounds [9]. The strong intensity of I, II, and IV peaks could arise from resonance Raman enhancement common in metalloporphyrins excited with a blue-green laser line. We also find a greater likelihood of detecting hematite in grains near red spots.

Reference: Wang A., Kuebler, K.E., Freeman J., Jolliff B. L., Preliminary Raman spectroscopic survey on a martian meteorite Los Angeles, 32th LPSC, 2001.

 

lunar_sample ] point_count ] zagami ] akb ] oxides1 ] calib_rock ] grain_size ] mojave_rocks ] cored_samples ] sulf_carbonates ] sa chert ] pyroxene ] phyllosilicate ] ocean clays ] los Angeles ] fido2001 rocks ] eeta79001 ] alba_spores ] lichen ] [ earth_life ] oxides2 ] feldspar ] alt_olivine ]

Wu_Epsc_banner.gif (6631 bytes)