"The nature and distribution of flowing features in a weakly karstified" by L. D. Maurice, T. C. Atkinson et al.
 

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Publication Date

5-12-2012

Publication Title

Journal of Hydrology

Volume Number

438-439

Abstract

The nature and distribution of flowing features in boreholes in an area of approximately 400 km 2 in a weakly karstic porous limestone aquifer (the Chalk) was investigated using single borehole dilution tests (SBDTs) and borehole imaging. One-hundred and twenty flowing features identified from SBDTs in 24 boreholes have densities which decrease from ∼0.3 m −1 near the water table to ∼0.07 m −1 at depths of more than 40 m below the water table; the average density is 0.20 m −1. There is some evidence of regional lithological control and borehole imaging of three boreholes indicated that most flowing features are associated with marls, hardgrounds and flints that may be developed at a more local scale.

Keywords

Fracture identification, Single borehole dilution test, Carbonate aquifiers, Chalk, Tracer, Small-scale karst

Document Type

Article

Digital Object Identifier (DOI)

https://doi.org/10.1016/j.jhydrol.2011.11.050

Language

English

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