Duntroon Basin 1983-2004 Workstation Dataset

A workstation-ready dataset of 471 SEGY data files is available for the Duntroon Basin area, offshore South Australia. The age range for these data is 1983-2004. Please note that SEGY data files for seismic lines recorded during the 1960’s and 1970’s are not held by PIRSA.

Shotpoint ranges have been verified against TIFF images of the processed sections and written to trace headers at byte position 17 in using 32-bit IDM floating point format.

X and Y coordinates have been written at byte position 73 (X) and 77 (Y) using 32-bit IBM integer format and all coordinates are referred to GDA 94 datum and UTM Zone 53. Coordinates were calculated (interpolated and extrapolated) using navigation files supplied by the relevant companies. Extrapolation was applied when existing navigation data did not cover the full length of the available SEGY data file. Such situations usually exist for those traces which lie outside the full fold portion of the data and are not considered reliable in any case.

TFS (time of first sample) values are written at byte position 109 using 16-bit IBM integer format. For this dataset, such values are always zero.

There is generally only one version of each line (filtered migrated), chosen on the basis that it was the longest, best and most recent version available  - see the attached spreadsheets:

Purchase price for the entire data set is $500 plus GST.

To order your data or request further information please contact Peter Hough (email) or phone (08) 8463 3240.

 

Duntroon Basin 2D seismic lines with SEGY data

Please click the image below for a full scale version.

Duntroon Basin Workstation Dataset Map