A geophysical study of a drumlin in the Åsnen area, Småland, south Sweden
(2015) In Dissertations in Geology at Lund University GEOL01 20151Department of Geology
- Abstract
- The sediment composition of drumlins in the Åsnen area in Småland, south Sweden is poorly studied.
Excavations are being planned with intention to study the internal architecture and composition of these drumlins.
As a preliminary investigation this thesis was done to determine the sediment depths in the tail of a drumlin at
Rörvik gård, situated on Vemboö in Lake Åsnen. To determine the sediment depths three geophysical methods
were carried out on the drumlin: (i) resistivity (cves), (ii) electromagnetic slingram and (iii) induced polarization
effect measurements. Using the data acquired from these measurements, models presenting maximum and minimum
potential depths to the bedrock were interpreted. The results indicate that the... (More) - The sediment composition of drumlins in the Åsnen area in Småland, south Sweden is poorly studied.
Excavations are being planned with intention to study the internal architecture and composition of these drumlins.
As a preliminary investigation this thesis was done to determine the sediment depths in the tail of a drumlin at
Rörvik gård, situated on Vemboö in Lake Åsnen. To determine the sediment depths three geophysical methods
were carried out on the drumlin: (i) resistivity (cves), (ii) electromagnetic slingram and (iii) induced polarization
effect measurements. Using the data acquired from these measurements, models presenting maximum and minimum
potential depths to the bedrock were interpreted. The results indicate that the drumlin has varying sediment
depths and undulating bedrock with the sediment on top being independent from the form of the bedrock. Sediment
depths of 2m to 8m were found in the drumlin according to the minimum interpretation, and depths of 2-15+ m
according to the maximum interpretation. Due to equivalence problems that come with the three selected geophysical
methods, it is suggested that drilling samples are suited to solve the problem, providing much more accurate
interpretations. It is also suggested that the geophysical method seismic refraction studies could potentially be another
choice of method to be used in similar studies. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/5468980
- author
- Asani, Besnik LU
- supervisor
-
- Per Möller LU
- Hans Jeppsson LU
- organization
- course
- GEOL01 20151
- year
- 2015
- type
- M2 - Bachelor Degree
- subject
- keywords
- Geophysics, drumlin, resistivity, induced-Polarization, electromagnetic slingram
- publication/series
- Dissertations in Geology at Lund University
- report number
- 444
- language
- English
- id
- 5468980
- date added to LUP
- 2015-06-08 14:12:15
- date last changed
- 2015-06-08 14:12:15
@misc{5468980, abstract = {{The sediment composition of drumlins in the Åsnen area in Småland, south Sweden is poorly studied. Excavations are being planned with intention to study the internal architecture and composition of these drumlins. As a preliminary investigation this thesis was done to determine the sediment depths in the tail of a drumlin at Rörvik gård, situated on Vemboö in Lake Åsnen. To determine the sediment depths three geophysical methods were carried out on the drumlin: (i) resistivity (cves), (ii) electromagnetic slingram and (iii) induced polarization effect measurements. Using the data acquired from these measurements, models presenting maximum and minimum potential depths to the bedrock were interpreted. The results indicate that the drumlin has varying sediment depths and undulating bedrock with the sediment on top being independent from the form of the bedrock. Sediment depths of 2m to 8m were found in the drumlin according to the minimum interpretation, and depths of 2-15+ m according to the maximum interpretation. Due to equivalence problems that come with the three selected geophysical methods, it is suggested that drilling samples are suited to solve the problem, providing much more accurate interpretations. It is also suggested that the geophysical method seismic refraction studies could potentially be another choice of method to be used in similar studies.}}, author = {{Asani, Besnik}}, language = {{eng}}, note = {{Student Paper}}, series = {{Dissertations in Geology at Lund University}}, title = {{A geophysical study of a drumlin in the Åsnen area, Småland, south Sweden}}, year = {{2015}}, }