Reflection seismic study of the post-glacial Burträsk fault, northern Sweden

Creator/Principal investigator(s):

Christopher Juhlin - Uppsala University, Department of Earth Sciences orcid

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

... Show more..

Principal organisation:

Download data:

Reflection seismic study of the post-glacial Burträsk fault: Original stack
Reflection seismic study of the post-glacial Burträsk fault: Original stack
Reflection seismic study of the post-glacial Burträsk fault: Cross-dip stack
Reflection seismic study of the post-glacial Burträsk fault: Migrated cross-dip stack

Creator/Principal investigator(s):

Christopher Juhlin - Uppsala University, Department of Earth Sciences orcid

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

... Show more..

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

Publications

Sort by name | Sort by year

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:

Download data:

Reflection seismic study of the post-glacial Burträsk fault: Original stack

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:

This dataset contains the pre-processed shot gathers of the Burträsk profile.
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:

Download data:

Reflection seismic study of the post-glacial Burträsk fault: Original stack

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

... Show more..

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:

Download data:

Reflection seismic study of the post-glacial Burträsk fault: Cross-dip stack

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

... Show more..

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:

Download data:

Reflection seismic study of the post-glacial Burträsk fault: Migrated cross-dip stack

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–

... Show more..

Data format / data structure:

Numeric

Text

Geospatial

Other

Data collection:

Time period(s) for data collection: 2008-08-05 — 2008-08-16