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An experimental and analogue study of iron release from red sandstones

Purser, G.; Rochelle, C.A.; Rushton, J. ORCID: https://orcid.org/0000-0001-5931-7537; Pearce, J.M.; Wagner, D.. 2014 An experimental and analogue study of iron release from red sandstones. Energy Procedia, 63. 3268-3274. https://doi.org/10.1016/j.egypro.2014.11.354

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Abstract/Summary

The Jurassic Entrada sandstone at Salt Wash Graben, Utah, USA, a red sandstone contains significant rock bleaching. The cause of the bleaching has been thought to be associated with the modern day CO2-rich fluids in the area which present on the surface by utalising the local fractures, some of which are filled with calcite and iron rich minerals (e.g. Jarosite). An experimental study was conducted to determine the cause of the bleaching. CO2 was found not to cause sandstone bleaching. However, the CO2 was found to mobilize significant amounts of iron from the fracture minerals suggesting that this is a possible source of the iron in the modern pore fluids.

Item Type: Publication - Article
Digital Object Identifier (DOI): https://doi.org/10.1016/j.egypro.2014.11.354
ISSN: 18766102
Date made live: 02 Feb 2016 13:37 +0 (UTC)
URI: https://nora.nerc.ac.uk/id/eprint/512825

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