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Supplementary Information
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Surface controls on the characteristics of natural CO2 seeps: implications for
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engineered CO2 stores
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Jennifer J. Roberts*, Rachel A. Wood, R. Stuart Haszeldine, Mark Wilkinson
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SCCS, School of GeoSciences, University of Edinburgh, King’s Buildings, West
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Mains Rd, Edinburgh, EH9 3JW, U.K.
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Introduction
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The material supplementary to this paper includes one data table (MS Word).
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Lithological information was extracted from a 1:500 000 scale geological map of
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Italy. The 128 different lithologies were classified into 18 broad rock types then
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further sub-divided into 6 general rock categories (Igneous; Metamorphic; Basin
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slope; Terrestrial; Platform margin and Platform interior). These categories are
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shown in this table.
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SI Table 1 Caption: Geological units from the 1:500,000 ISPRA geological map
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which host CO₂ seeps. Rock descriptions were translated from Italian, simplified,
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and the rocks were then classified into specific rock types and grouped into rock
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category. Where two descriptions are similar, they represent different formation
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ages.