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The Stac Fada “impact ejecta” layer: not what it seems

Osinski, G. R.; Preston, L.; Ferrière, L.; Prave, T.; Parnell, J.; Singleton, A. and Pickersgill, A. E. (2011). The Stac Fada “impact ejecta” layer: not what it seems. In: 74th Annual Meeting of the Meteoritical Society, 8-12 August 2011, London, UK.

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The Stac Fada Member (SFM) forms part of the Stoer Group of the Torridonian of NW Scotland. The SFM is unique in the Torridonian, being characterized by the presence of greenish altered glass clasts. Its origin has been debated for decades with several hypotheses being proposed but all invoking some connection with volcanic activity in the region. More recently, Amor et al. suggested that the SFM represents “a chord section through the continuous ejecta blanket surrounding an impact crater”. Here, we confirm the presence of shocked material within the SFM and then discuss its origin.

Item Type: Conference Item
Copyright Holders: 2011 Not known
Academic Unit/Department: Science > Physical Sciences
Item ID: 33756
Depositing User: Louisa Preston
Date Deposited: 30 May 2012 12:07
Last Modified: 19 Jan 2016 17:27
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