OR/13/053 Calculated formational thicknesses

Woods, M A, Haslam, R B, Mee, K, Newell, A J, and Terrington, R L. 2013. A guide to a new Geographical Information System for the Chalk of the Thames Basin: The Thames Chalk Information System (TCIS). (FutureThames cross-cutting Programme). British Geological Survey Internal Report, OR/13/053.

Based on the calculated formational surfaces shown on the GIS, the following thickness ranges were calculated for each formation:

1. Chalk (generally 0 m to 307 m excluding extreme outliers)
2. NCK and SECK combined thickness (generally 0 m to 150 m excluding extreme outliers)
3. LECH (generally 0 m to 65 m excluding extreme outliers)
4. NPCH (generally 0 m to 80 m excluding extreme outliers)
5. HCK (generally 0 m to 50 m excluding extreme outliers)
6. ZZCH (generally 0 m to 60 m excluding extreme outliers)
7. WMCH (generally 0 m to 30 m excluding extreme outliers)
8. White Chalk (generally 0 m to 240 m excluding extreme outliers)
9. Grey Chalk (generally 0 m to 80 m excluding extreme outliers)
10. Upper Chalk (generally 0 m to 160 m excluding extreme outliers)
11. Middle Chalk (generally 0 m to 115 m excluding extreme outliers)

Please use the following layer file to visualise these thickness plots:

W:\Teams\SCCP\ThamesBasin\Data\3D\Chalk\CK_Formations\CHALK_FORMATION_THICKNESSE S\CHALK THICKNESSES.lyr