Carbon suboxide polymer, an explanation for the wave of darkening on Mars

Details Carbon suboxide polymer, an explanation for the wave of darkening on Mars Carbon suboxide polymer, an explanation for the wave of darkening on Mars

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978cosp.meetq....o&link_type=abstract

COSPAR, Plenary Meeting, 21st, Innsbruck, Austria, May 29-June 10, 1978, Paper. 14 p.

Physics

Albedo, Carbon Suboxides, Mars Surface, Polymer Chemistry, Annual Variations, Atmospheric Chemistry, Atmospheric Moisture, Polar Caps, Water Vapor

Scientific paper

The carbon suboxide thermal polymer or its irradiated product is affected by water vapor. The polymerized carbon suboxide simulates the Martian wave of darkening on the inner wall of a glass tube when humidified by passage of water vapor through the tube. The polymer was visibly darkened by the advancing vapor front. With increasing polymer thickness and/or water vapor concentration the wave of darkening similarly intensifies simulating the dark fringe in the Martian circumpolar areas. Surfaces are lightened constantly being renewed by particulate material settling from the atmosphere. It is hypothesized that light and dark areas have polymer coatings, but light areas have small particles which scatter white light more effectively and appear brighter on the surface of Mars.

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