Volcanic Glasses: Construction Materials

Details Volcanic Glasses: Construction Materials Volcanic Glasses: Construction Materials

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998uisr.work...13m&link_type=abstract

Workshop on Using In Situ resources for Construction of Planetary Outposts, p. 13

Computer Science

Aluminum Oxides, Amorphous Materials, Chemical Composition, Glass, Iron Oxides, Lunar Rocks, Magnesium Oxides, Planetary Geology, Silicon Dioxide, Mars Volcanoes, Water, Pumice, Regolith, Spectrometers, Viking Lander Spacecraft

Scientific paper

Natural glass is the product of rapidly cooled molten rock. Two natural sources of the melt are volcanic eruption and meteoritic impact. Pure glass is an amorphous aggregate. Volcanic glass is a material that could be utilized in the construction of extraterrestrial outposts. Pumice and perlite are volcanic glasses currently used in the building industry. Samples of natural volcanic glass found in the lunar regolith were returned to Earth as part of the Apollo and Luna programs. An alpha proton X-ray spectrometer onboard the Pathfinder recently examined martian rocks located in the vicinity of the lander craft. Preliminary results of chemical composition by weight of SiO2 50-55%, Al203 11-13%, K20 1-2%, Na20 2-5%, CaO 4-6%, MgO 3-7%, FeO 12-14%, S03 2-5%, and MnO <1% were given for two rocks. Parenthetically, the values for K and Mn were perhaps too high, and the analysis was based on X-ray data only. The appreciable amount of silica already found on Mars and empirical evidence to support the hypothesis that the planet once had water sufficient to rapidly cool magma imply the possibility of discovering natural glass of volcanic origin in subsequent missions.

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