Imaging Drumlin Architecture with Electrical Resistivity


  •  Januka Attanayake    
  •  Yongping Chen    
  •  Rory Henderson    
  •  Zhao Zhao    

Abstract

Geomorphologists may use the knowledge of interior structure of drumlins to infer finer-scale dynamics of glaciers. An electrical resistivity imaging study was carried out to investigate the interior architecture of a drumlin near UCCT seismic station located in the premises of the University Connecticut. Apparent resistivity measurements collected from an 81 m-long dipole-dipole electrode array oriented along the longer axis of the drumlin were inverted to obtain a subsurface model. The model consists of four layers of different resistivity values. These results are used to infer a glacial depositional sequence of younger upper till and older lower till separated by a transition layer. Evidence for a basement crystalline rock core was not found at the maximum penetration depth of 17 m.



This work is licensed under a Creative Commons Attribution 4.0 License.
  • ISSN(Print): 1916-9779
  • ISSN(Online): 1916-9787
  • Started: 2009
  • Frequency: semiannual

Journal Metrics

(The data was calculated based on Google Scholar Citations)

Google-based Impact Factor (2018): 11.90

h-index (January 2018): 17

i10-index (January 2018): 36

h5-index (January 2018): 13

h5-median(January 2018): 15

Contact