A micrometeorite record in Ordovician Durness Group limestones, Isle of Skye

John Parnell; Natalie Salter; Peter  West

doi:10.1017/S1755691016000037

A micrometeorite record in Ordovician Durness Group limestones, Isle of Skye

John Parnell, Natalie Salter, Peter West

Geology and Geophysics

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Abstract

Samples of mid-Ordovician Durness Group limestone from Skye yield micrometeorites in the magnetic fraction after dissolution in acid. The micrometeorites are concentrated in the upper part of the sequence, in the Arenig Balnakeil and Croisaphuill formations. This finding is consistent with their stratigraphic distribution determined previously in the Durness district. A single sample of contemporaneous limestones from the Highland Border Fault Zone also yielded a micrometeorite. These observations suggest an elevated flux of meteoritic matter, shortly before the greatest concentration of meteorites in the geological record in the mid-Ordovician of Sweden.

Original language	English
Pages (from-to)	81-87
Number of pages	7
Journal	Earth and Environmental Science Transactions of the Royal Society of Edinburgh
Volume	106
Issue number	2
Early online date	27 Apr 2016
DOIs	https://doi.org/10.1017/S1755691016000037
Publication status	Published - Jun 2016

Keywords

Arenig
cosmic spherule
meteorite
meteoritic flux
Scotland

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Accepted Manuscript
This article has been published in a revised form in Earth and Environmental Science Transactions of the Royal Society of Edinburgh [https://doi.org/10.1017/S1755691016000037]. This version is free to view and download for private research and study only. Not for re-distribution, re-sale or use in derivative works. © The Royal Society of Edinburgh 2016.
Accepted author manuscript, 1.56 MBLicence: Unspecified

Cite this

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title = "A micrometeorite record in Ordovician Durness Group limestones, Isle of Skye",

abstract = "Samples of mid-Ordovician Durness Group limestone from Skye yield micrometeorites in the magnetic fraction after dissolution in acid. The micrometeorites are concentrated in the upper part of the sequence, in the Arenig Balnakeil and Croisaphuill formations. This finding is consistent with their stratigraphic distribution determined previously in the Durness district. A single sample of contemporaneous limestones from the Highland Border Fault Zone also yielded a micrometeorite. These observations suggest an elevated flux of meteoritic matter, shortly before the greatest concentration of meteorites in the geological record in the mid-Ordovician of Sweden.",

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AU - West, Peter

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AB - Samples of mid-Ordovician Durness Group limestone from Skye yield micrometeorites in the magnetic fraction after dissolution in acid. The micrometeorites are concentrated in the upper part of the sequence, in the Arenig Balnakeil and Croisaphuill formations. This finding is consistent with their stratigraphic distribution determined previously in the Durness district. A single sample of contemporaneous limestones from the Highland Border Fault Zone also yielded a micrometeorite. These observations suggest an elevated flux of meteoritic matter, shortly before the greatest concentration of meteorites in the geological record in the mid-Ordovician of Sweden.

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DO - 10.1017/S1755691016000037

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JO - Earth and Environmental Science Transactions of the Royal Society of Edinburgh

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ER -

A micrometeorite record in Ordovician Durness Group limestones, Isle of Skye

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Keywords

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