Pore size distribution in an uncompacted equilibrated ordinary chondrite
Abbreviated Journal Title
Planet Space Sci.
X-ray microtomography; porosity; density; ordinary chondrite; asteroid; COLLISIONAL DISRUPTION; POROSITY; IMPACT; METEORITES; CHROMITE; STONY; Astronomy & Astrophysics
The extraordinarily uncompacted nature of the ordinary L chondrite fall Baszkowka gives a unique opportunity to investigate the potentially pre-compaction pore size distribution in an equilibrated ordinary chondrite. Using X-ray microtomography and helium pycnometry on two samples of Baszkowka, we have found that on average, two-thirds of the 19.0% porosity resides in inter-and intra-granular voids with volumes between similar to 3 x 10(-5) and 3 mm(.)(3) We show the cumulative number density of pore volumes observable by X-ray microtomography obeys a power law distribution function in this equilibrated ordinary chondrite. We foresee these data adding to our understanding of the impact processing of chondrites and their parent asteroids, where porosity and pore size play significant roles in the parameterization of impact events. (c) 2008 Elsevier Ltd. All rights reserved.
Planetary and Space Science
"Pore size distribution in an uncompacted equilibrated ordinary chondrite" (2008). Faculty Bibliography 2000s. 334.