Reflection seismic study of the post-glacial Burträsk fault, northern Sweden
Creator/Principal investigator(s):
Christopher Juhlin
- Uppsala University, Department of Earth Sciences
Ruth Beckel - Uppsala University, Department of Earth Sciences
Björn Lund - Uppsala University, Department of Earth Sciences
Description:
In 2008, a 22 km long high resolution reflection seismic profile was acquired over the Burträsk fault in Northern Sweden. The Burträsk fault formed at the end of the last glacial, triggered by the rapid melting of the Scandinavian ice sheet and the following crustal rebound. The aim of the survey was to image the structure of the fault with depth. The profile followed existing roads resulting in a very crooked acquisition geometry. A list of the key acquisition parameters is given below.
The dataset was first processed and published in 2011. In 2018, the dataset was reprocessed using an additional cross-dip correction step to improve the imaging of reflection with a dip component in the cross-profile direction. The following data files are available for downloading:
1) raw shot gathers (decoded and quality controlled, with geometry information in the headers)
2) original stacked section from Juhlin and Lund (2011)
3) cross-dip corrected stacked section from Beckel and Juhlin (2019)
4) cross-dip corrected migrated section from Beckel and Juhlin (2019)
A short summary of the main processing st
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Creator/Principal investigator(s):
Christopher Juhlin
- Uppsala University, Department of Earth Sciences
Ruth Beckel - Uppsala University, Department of Earth Sciences
Björn Lund - Uppsala University, Department of Earth Sciences
Identifiers:
SND-ID: SND 1099
Description:
In 2008, a 22 km long high resolution reflection seismic profile was acquired over the Burträsk fault in Northern Sweden. The Burträsk fault formed at the end of the last glacial, triggered by the rapid melting of the Scandinavian ice sheet and the following crustal rebound. The aim of the survey was to image the structure of the fault with depth. The profile followed existing roads resulting in a very crooked acquisition geometry. A list of the key acquisition parameters is given below.
The dataset was first processed and published in 2011. In 2018, the dataset was reprocessed using an additional cross-dip correction step to improve the imaging of reflection with a dip component in the cross-profile direction. The following data files are available for downloading:
1) raw shot gathers (decoded and quality controlled, with geometry information in the headers)
2) original stacked section from Juhlin and Lund (2011)
3) cross-dip corrected stacked section from Beckel and Juhlin (2019)
4) cross-dip corrected migrated section from Beckel and Juhlin (2019)
A short summary of the main processing st
Language:
English
Time period(s) investigated:
2008-08-05 — 2008-08-16
Geographic spread:
Geographic location: Sweden, Skellefteå Municipality
Geographic description: Burträsk fault, northern Sweden
Funding:
Swedish Research Council
Subject area:
Keywords:
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Publications
Juhlin, C. and Lund, B.: Reflection seismic studies over the end-glacial Burträsk fault, Skellefteå, Sweden, Solid Earth, 2, 9–16, https://doi.org/10.5194/se-2-9-2011, 2011.
Link to article: Solid Earth
Beckel, R. A. and Juhlin, C.: The cross-dip correction as a tool to improve imaging of crooked-line seismic data: a case study from the post-glacial Burträsk fault, Sweden. Accepted for publication in Solid Earth, Special Issue: Advances in seismic imaging across the scales, 2019.
If you have published anything based on these data, please notify us with a reference to your publication(s).
Version 1.0:
2019-04-17
doi:10.5878/g1mw-0h64
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Dataset SND 1099-001
Reflection seismic study of the post-glacial Burträsk fault: Shot gathers with geometry
Citation:
Christopher Juhlin, Björn Lund. Uppsala University, Department of Earth Sciences (2019). Reflection seismic study of the post-glacial Burträsk fault: Shot gathers with geometry. Swedish National Data Service. Version 1.0. https://doi.org/10.5878/g1mw-0h64
Principal investigator(s):
Description:
Processing steps for this data set:
1: Read decoded VIBSIST data
2: Bulk static shift to zero time
3: Apply geometry
Processed seismic data stored as one file for the entire seismic profile, according to SEG technical standard SEG-Y revision 1 (SEG-Y_r1.0, 2002); https://seg.org/Publications/SEG-Technical-Standards
Access data by contacting request@snd.gu.se or by using the web form.
Data format / data structure:
Numeric
Text
Geospatial
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Data collection:
Time period(s) for data collection: 2008-08-05 — 2008-08-16
Version 1.0:
2019-04-17
doi:10.5878/gs5z-p737
Download data:
Dataset SND 1099-002
Reflection seismic study of the post-glacial Burträsk fault: Original stack
Citation:
Christopher Juhlin, Björn Lund. Uppsala University, Department of Earth Sciences (2019). Reflection seismic study of the post-glacial Burträsk fault: Original stack. Swedish National Data Service. Version 1.0. https://doi.org/10.5878/gs5z-p737
Principal investigator(s):
Description:
This dataset contains the original stack of the Burträsk profile (Juhlin & Lund, 2011).
Processing steps for this data set:
1. Read decoded VIBSIST data
2. Bulk static shift to zero time
3. Apply geometry
4. Pick first breaks
5. Resample: 2 ms, 1501 samples
6. Trace editing
7. Trace balance: 0-3000 ms
8. Spectral equalization: 25-40-120-150 Hz
9. Time variant bandpass filter:
0-200 ms: 35-70-200-300 Hz
250-500 ms: 30-60-180-270 Hz
600-900 ms: 22-45-135-200 Hz
1100-3000 ms: 20-40-120-180 Hz
1
Data format / data structure:
Numeric
Text
Geospatial
Other
Data collection:
Time period(s) for data collection: 2008-08-05 — 2008-08-16
Version 1.0:
2019-04-17
doi:10.5878/qwm7-pz92
Download data:
Dataset SND 1099-003
Reflection seismic study of the post-glacial Burträsk fault: Cross-dip stack
Citation:
Christopher Juhlin, Ruth Beckel. Uppsala University, Department of Earth Sciences (2019). Reflection seismic study of the post-glacial Burträsk fault: Cross-dip stack. Swedish National Data Service. Version 1.0. https://doi.org/10.5878/qwm7-pz92
Principal investigator(s):
Description:
This dataset contains the cross-dip stack of the Burträsk profile (Beckel & Juhlin, 2019).
Processing steps for this data set:
1. Read decoded VIBSIST data
2. Bulk static shift to zero time
3. Apply geometry
4. Manual first-break picking
5. Trace balance: 0-3000 ms
6. Ground-roll and first-break muting in local time-
frequency domain: 25 % threshold
7. Spectral equalization: 30 Hz window,
25-40-120-150 Hz bandpass
8. Time-variant bandpass filtering:
0-200 ms: 35-60-120-180 Hz
250-500 ms: 30-5
Data format / data structure:
Numeric
Text
Geospatial
Other
Data collection:
Time period(s) for data collection: 2008-08-05 — 2008-08-16
Version 1.0:
2019-04-17
doi:10.5878/k3zc-s495
Download data:
Dataset SND 1099-004
Reflection seismic study of the post-glacial Burträsk fault: Migrated cross-dip stack
Citation:
Christopher Juhlin, Ruth Beckel. Uppsala University, Department of Earth Sciences (2019). Reflection seismic study of the post-glacial Burträsk fault: Migrated cross-dip stack. Swedish National Data Service. Version 1.0. https://doi.org/10.5878/k3zc-s495
Principal investigator(s):
Description:
This dataset contains the migrated and depth converted crossdip stack of the Burträsk profile (Beckel & Juhlin, 2019).
Processing steps for this data set:
1. Read decoded VIBSIST data
2. Bulk static shift to zero time
3. Apply geometry
4. Manual first-break picking
5. Trace balance: 0–3000 ms
6. Ground-roll and first-break muting in local time–
frequency domain: 25 % threshold
7. Spectral equalization: 30 Hz window,
25–40–120–150 Hz bandpass
8. Time-variant bandpass filtering:
0–200 ms: 35–60–
Data format / data structure:
Numeric
Text
Geospatial
Other
Data collection:
Time period(s) for data collection: 2008-08-05 — 2008-08-16