Physics
Scientific paper
Mar 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976stin...7621102m&link_type=abstract
On the structure of the Martian soil from optical and infrared observations NASA Transl. into ENGLISH from Russian report PR-234
Physics
Infrared Spectra, Mars Surface, Soils, Thermophysical Properties, Igneous Rocks, Maria, Mathematical Models, Particle Size Distribution
Scientific paper
The spectrum of reflected radiation and the thermophysical properties of the Martian soil are used to develop a model of the soil. The resulting model follows: (1) the Martian soil consists of particulate, basic and intermediate igneous rock, with a small admixture of geothite; the highland soil consists of more acid rocks than the mare soil; (2) the soil consists of two types of particles: comparatively large particles (tenths of a millimeter in size) and micron size particles; the large particles possibly are conglomerates of the small ones; and (3) the average soil density is about 1.22 g cu/cm at a depth of 2 to 4 cm, and porosity is about 0.6.
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