Viking Magnetic Properties Investigation: Further Results

The amounts of magnetic particles held on the reference test chart and backhoe magnets on lander 2 and lander 1 are comparable, indicating the presence of an estimated 3 to 7 percent by weight of relatively pure, strongly magnetic particles in the soil at the lander 2 sampling site. Preliminary spec...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1976-12, Vol.194 (4271), p.1303-1309
Main Authors: Hargraves, R. B., Collinson, D. W., Arvidson, R. E., Spitzer, C. R.
Format: Article
Language:English
Subjects:
Backhoes
Colors
Infrared reflection
Magnetic surveys
Magnetite
Magnets
Minerals
Reflectance
Spectral reflectance
Wavelengths
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Summary:The amounts of magnetic particles held on the reference test chart and backhoe magnets on lander 2 and lander 1 are comparable, indicating the presence of an estimated 3 to 7 percent by weight of relatively pure, strongly magnetic particles in the soil at the lander 2 sampling site. Preliminary spectrophotometric analysis of the material held on the backhoe magnets on lander 1 indicates that its reflectance characteristics are indistinguishable from material within a sampling trench with which it has been compared. The material on the RTC magnet shows a different spectrum, but it is suspected that the difference is the result of a reflectance contribution from the magnesium metal covering on the magnet. It is argued that the results indicate the presence, now or originally, of magnetite, which may be titaniferous.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.194.4271.1303