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
Subject area
Keywords
Principal organisation
Accessibility status
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Responsible department/unit
Uppsala University, Department of Earth Sciences
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
Publications
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.
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
If you have published anything based on these data, please notify us with a reference to your publication(s).
If you are responsible for the catalogue entry, you can update the metadata/data description in DORIS.
Version 1.0
2019-04-17
https://doi.org/10.5878/g1mw-0h64
Download data
Dataset 1
Reflection seismic study of the post-glacial Burträsk fault: Shot gathers with geometry
Suggested citation
Creator/Principal investigator(s)
Christopher Juhlin
- Uppsala University, Department of Earth Sciences
Björn Lund - Uppsala University, Department of Earth Sciences
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
Other
Data collection
Time period(s) for data collection: 2008-08-05 — 2008-08-16
Version 1.0
2019-04-17
https://doi.org/10.5878/gs5z-p737
Download data
Dataset 2
Reflection seismic study of the post-glacial Burträsk fault: Original stack
Suggested citation
Creator/Principal investigator(s)
Christopher Juhlin
- Uppsala University, Department of Earth Sciences
Björn Lund - Uppsala University, Department of Earth Sciences
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
https://doi.org/10.5878/qwm7-pz92
Download data
Dataset 3
Reflection seismic study of the post-glacial Burträsk fault: Cross-dip stack
Suggested citation
Creator/Principal investigator(s)
Christopher Juhlin
- Uppsala University, Department of Earth Sciences
Ruth Beckel - Uppsala University, Department of Earth Sciences
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
https://doi.org/10.5878/k3zc-s495
Download data
Dataset 4
Reflection seismic study of the post-glacial Burträsk fault: Migrated cross-dip stack
Suggested citation
Creator/Principal investigator(s)
Christopher Juhlin
- Uppsala University, Department of Earth Sciences
Ruth Beckel - Uppsala University, Department of Earth Sciences
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