Computer Science
Scientific paper
Feb 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.301..473b&link_type=abstract
Nature, vol. 301, Feb. 10, 1983, p. 473-477.
Computer Science
95
Enstatite, Interplanetary Dust, Meteoritic Microstructures, Vapor Phase Epitaxy, Whiskers (Crystals), Chondrites, Condensates, Crystal Defects, Crystal Growth, Electron Microscopy, Meteoritic Composition, Meteoroid Dust Clouds, Micrometeorites, Polymorphism, Screw Dislocations, Cosmic Dust, Interplanetary Dust, Pyroxene, Vapor Phases, Enstatite, Particles, Stratosphere, Samples, Extraterrestrial, Crystals, Morphology, Microstructure, Condensation, Formation, Solar Nebula, Thermal Effects, Electron Microscop
Scientific paper
Enstatite crystals with whisker and platelet morphologies have been observed within chondritic porous micrometeorites. Samples of such crystals collected from the stratosphere are described. The samples display unique crystal morphologies and microstructures, such as axial screw dislocations, that strongly suggest that they are primary vapor phase condensates which could have formed either in the solar nebula or in presolar environments. The relationship between the crystal polymorphism and the thermal conditions of growth is discussed, adopting the view that protoenstatite and orthoenstatite are the stable high and low temperature forms, respectively. The kinetic aspects and mechanisms of whisker and platelet growth are considered, and the nature of the likely growth medium for the crystals is addressed. It is concluded that growth from a relatively low-pressure vapor phase is the most likely mode of growth.
Bradley John P.
Brownlee Don E.
Veblen David R.
No associations
LandOfFree
Pyroxene whiskers and platelets in interplanetary dust - Evidence of vapour phase growth 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 Pyroxene whiskers and platelets in interplanetary dust - Evidence of vapour phase growth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pyroxene whiskers and platelets in interplanetary dust - Evidence of vapour phase growth will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1307306