1. Anomalous buried hollows in London: development of a hazard susceptibility map
by V. J. Banks, S. H. Bricker, K. R. Royse, and P. E. F. Collins
Quarterly Journal of Engineering Geology and Hydrogeology
Volume 48(1):55-70
March 11, 2015
© 2015 The Authors

2. Location of the originally identified and newly reported occurrences of buried hollows in central London.
Location of the originally identified and newly reported occurrences of buried hollows in central London. The underlying bedrock geology (1:50000) is shown along with the modern river drainage network. BGS©NERC. Contains Ordnance Survey data © Crown Copyright and database rights Lost rivers of London reproduced from Barton (1992).
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors

3. Geological succession of the research area (adapted from Sumbler 1996 and Ellison et al. 2004).
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors

4. Quaternary correlation chart for the Middle and Lower Thames (adapted from McMillan et al. 2011).
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors

5. Schematic, simplified geological cross-section, oriented NW–SE through the London Basin.
Schematic, simplified geological cross-section, oriented NW–SE through the London Basin. Major faults are indicated (F); other faults (Fig. 4) are not shown (Royse et al. 2012, fig. 3).
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors

6. Geological and hydrogeological factors contributing to the GIS layer.
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors

7. Factors contributing to the susceptibility map.
Factors contributing to the susceptibility map. BGS©NERC. Zone of artesian groundwater © Environment Agency copyright and/or database rights All rights reserved. Lost rivers of London reproduced from Barton (1992).
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors

8. Mapped faults. Mapped faults. BGS©NERC.
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors

9. Zoned hazard susceptibility map.
Zoned hazard susceptibility map. BGS©NERC. Contains OS Open data ©Crown Copyright and database rights Lost rivers of London reproduced from Barton (1992).
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors

10. Number of originally identified buried hollow features that occur within the hazard susceptibility zones.
Number of originally identified buried hollow features that occur within the hazard susceptibility zones
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors

11. Buried hollows that fall outside hazard susceptibility zones A and B.
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors

12. Number of newly reported in-filled hollow features that occur within the hazard susceptibility zones.
Number of newly reported in-filled hollow features that occur within the hazard susceptibility zones
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors

13. Conceptual model to show the context of the buried hollow in London.
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors

14. Characteristics of the documented buried hollows underlain by London Clay.
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors

15. Characteristics of the documented buried hollows with roots that extend below the London Clay.
V. J. Banks et al. Quarterly Journal of Engineering Geology and Hydrogeology 2015;48:55-70
© 2015 The Authors