Mineral equilibria and the high radar reflectivity of Venus mountaintops

Details Mineral equilibria and the high radar reflectivity of Venus mountaintops Mineral equilibria and the high radar reflectivity of Venus mountaintops

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....9716353k&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. E10, p. 16,353-16,369.

Other

50

Emissivity, Mineralogy, Mountains, Radar Geology, Reflectance, Venus Surface, Magellan Project (Nasa), Weathering

Scientific paper

The relationship between altitude and microwave emissivity in 10 highland regions of Venus is investigated on the basis of the Magellan data set. Highlands on Venus are found to display high radar reflectivity. The required change in surface electrical properties occurs abruptly at a 'critical altitude,' whose value varies from one highland area to another. Critical altitudes range from 4.75 km to 2.49 km. Differences in reflectivity are caused by differences in the surface mineral assemblage, which determines the dielectric constant of surface material. The mineral responsible for high radar reflectivity on mountaintops is pyrite, which occurs in weathered mineral assemblages at high altitudes. Conductive pyrite occurs dispersed in insulating materials, forming a loaded dielectric material.

Affiliated with

Also associated with

No associations

Rating

Mineral equilibria and the high radar reflectivity of Venus mountaintops does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Mineral equilibria and the high radar reflectivity of Venus mountaintops, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mineral equilibria and the high radar reflectivity of Venus mountaintops will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1870548