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  Order and disorder in columnar joints

Goehring, L., & Morris, S. W. (2005). Order and disorder in columnar joints. Europhysics Letters, 69(5), 739-745. doi:10.1209/epl/i2004-10408-x.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-B510-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-B511-A
Genre: Journal Article

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 Creators:
Goehring, Lucas1, Author              
Morris, S. W, Author
Affiliations:
1Group Pattern formation in the geosciences, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063304              

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 Abstract: Columnar joints are three-dimensional fracture networks that form in cooling basalt and several other media. The network organizes itself into ordered, mostly hexagonal columns. The same pattern can be observed on a smaller scale in desiccating starch. We show how surface boundary conditions in the desiccation of starch affect the formation of columnar joints. Under constant drying power conditions, we find a power law dependence of columnar cross-sectional area with depth, while under constant drying rate conditions this coarsening is eventually halted. Discontinuous transitions in pattern scale can be observed under constant external conditions, which may prompt a reinterpretation of similar transitions found in basalt. Starch patterns are statistically similar to those found in basalt, suggesting that mature columnar jointing patterns contain inherent residual disorder, but are statistically scale invariant.

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Language(s): eng - English
 Dates: 2005-02-05
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1209/epl/i2004-10408-x
BibTex Citekey: goehring_order_2005
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Title: Europhysics Letters
Source Genre: Journal
 Creator(s):
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Publ. Info: Bristol : IoPP
Pages: - Volume / Issue: 69 (5) Sequence Number: - Start / End Page: 739 - 745 Identifier: Other: 0295-5075
CoNE: /journals/resource/0295-5075