OR/14/045 Model assumptions, geological rules used etc: Difference between revisions

Latest revision as of 14:28, 15 February 2016

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

Table 4 Assumptions about the Swansea-Neath-Port-Talbot 3D geological model
Number	Description of rule or assumption during modelling
1	Artificially modified ground includes made ground only. Made ground is not further sub-divided. Made ground is correlated on cross-sections where it is proved in boreholes.
2	There is a difference between the imported baseline geological rockhead surface and geological rockhead derived from the 3D geological model. This arises typically in steep-sided valleys where the GSI3D model has been used to interpret a different geometry of geological rockhead in-between boreholes considered in the geological model.
3	Four bounding cross-sections have been added to the model to calculate and represent geological rockhead. Bedrock is undifferentiated in the geological model and its base represents the base of the 3D geological model only.

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