OR/14/045 Modelled volume, purpose and scale

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Price, S J, and Waters, C N. 2014. Model metadata report for Swansea-Neath-Port-Talbot. British Geological Survey Internal Report, OR/14/045.

This metadata report describes a 3D geological model of the natural and artificial superficial deposits of the Swansea-Neath-Port-Talbot area. It includes the glacigenic, coastal, estuarine, aeolian and organic deposits of Swansea Bay and the Tawe and Neath Valleys. The 3D geological model does not include bedrock units or geological faults.

The 3D geological model is suitable for use at scales between 1:25 000 and 1:50 000 and is intended to provide a regional, city-wide interpretation of the distribution of geometry of natural and artificial deposits in the region. The geological model was constructed between 2002 and 2003 to define the 3D distribution and geometry of Quaternary deposits to a maximum depth of approximately 60 m below OD.

The construction of the model formed part of a wider study that investigated risks associated with land contamination from past industrial activity including metal processing. It was intended that the 3D geological model of superficial deposits could be used as part of a regional risk assessment of contaminated land and be used to assess groundwater recharge and flow. The results of the study including a description of the 3D geological model and the geological modelling methodology is provided in (Waters et al., 2005[1]; Waters et al., 2006[2]). Figure 1 illustrates the geographic extent of the 3D geological model. The extent of the geological model of superficial deposits corresponds to quarter sheets SS69NE, SS69SE, SS79NW and SS79SW.

Figure 1 Geographic extent of the 3D geological model of the superficial deposits of Swansea-Neath-Port-Talbot.

References

  1. WATERS, C N, PRICE, S J, DAVIES, J, TYE, A M, BROWN, S E, and SCHOFIELD, D I. 2005. Urban geology of Swansea-Neath-Port- Talbot. 7–22 in Urban Geology in Wales. BASSETT, M G, DEISLER, V K, and NICHOL, D (editors). 2.
  2. WATERS, C N, PRICE, S J, HAWKINS, M P, MARCHANT, A P, FIORINI, E, BROWN, S E, TYE, A M, FLEMING, C, DAVIES, J, SCHOFIELD, D I, BARCLAY, W J, and GARCIA-BAJO, M. 2006. A background to urban geoscience studies in the Swansea-Neath- Port-Talbot area. British Geological Survey, Internal Report, IR/05/073R (Keyworth, Nottingham).