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  Kinneyia: A flow-induced anisotropic fossil pattern from ancient microbial mats.

Herminghaus, S., Thomas, K. R., Aliaskarisohi, S., Porada, H., & Goehring, L. (2016). Kinneyia: A flow-induced anisotropic fossil pattern from ancient microbial mats. Frontiers in Materials, 3: 30. doi:10.3389/fmats.2016.00030.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-E73E-E Version Permalink: http://hdl.handle.net/21.11116/0000-0000-30C7-9
Genre: Journal Article

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 Creators:
Herminghaus, Stephan1, Author              
Thomas, Katherine R.1, Author              
Aliaskarisohi, Saeedeh2, Author              
Porada, Hubertus, Author
Goehring, Lucas2, Author              
Affiliations:
1Group Granular matter and irreversibility, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063306              
2Group 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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Free keywords: Kinneyia; Microbial mats; Fossil record; Hydrodynamic instability; early life
 Abstract: Kinneyia is the commonly-used term to describe a class of trace fossil that is strongly associated with microbial mats. The appearance of Kinneyia (or wrinkle-structures) in the fossil record has recently led to a number of possible mechanisms being proposed to explain its formation. Here we outline, and critically compare, three of these models, involving formation of the characteristic ripple-structures (i) in mats over liquefied sediment, (ii) by oscillatory flow of microbial aggregates, and (iii) by a Kelvin-Helmholtz instability of the mat surface. Of these models, our study shows that the hydrodynamic instability compares most favorably with the corresponding structures in the fossil record. Implications for the conditions under which the fossils formed are then further discussed.

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Language(s): eng - English
 Dates: 2016-07-122016
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.3389/fmats.2016.00030
 Degree: -

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Title: Frontiers in Materials
Source Genre: Journal
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Publ. Info: Frontiers Media S.A.
Pages: 13 Volume / Issue: 3 Sequence Number: 30 Start / End Page: - Identifier: ISSN: 2296-8016