Title

Pore Size Distribution In An Uncompacted Equilibrated Ordinary Chondrite

Keywords

Asteroid; Density; Ordinary chondrite; Porosity; X-ray microtomography

Abstract

The extraordinarily uncompacted nature of the ordinary L chondrite fall Baszkówka 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 Baszkówka, we have found that on average, two-thirds of the 19.0% porosity resides in inter- and intra-granular voids with volumes between ∼3×10-5 and 3 mm3. 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. © 2008 Elsevier Ltd. All rights reserved.

Publication Date

5-1-2008

Publication Title

Planetary and Space Science

Volume

56

Issue

7

Number of Pages

895-900

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.pss.2008.02.002

Socpus ID

42749086923 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/42749086923

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