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DRUM filtered 2 Regional Project

VSA Author: Taija Torvela
Scenes: 0
Interpretations: 1
Date Created: 2016-05-02

The original seismic is filtered with 8x8 (trace x sample) dip-steered median filter of Opendtect with a maximum seismic dip of c. 40 degrees, this reduces 1D noise and also removes some steep coherent noise while enhancing signal continuity. This filtered seismic is then overlain with the cosine of phase attribute of the dip-steered data, in order to enhance the signal geometries further and to reveal the “seismic fabric” between the strong reflections.

Interpretations related to this Regional Project

Deep Structure - West Orkney Basin, imaged on ultradeep seismic Interpretation

VSA Author: Rob Butler
Date Created: 2021-03-12

An interpretation of the BIRPS DRUM line (from 1984) - showing the crustal structure (rift basins developed across the Caledonian deformation front, offshore N Scotland) and the underlying, still enigmatic, sub-Moho reflective zones (Flannan and "W").


  • Regional Project Administrator:
    • Taija Torvela
  • VSA Author:
    • Taija Torvela

Geological Interpretation

Deformation Structures
Listric, Thrusts, Negative

Moho, Continental Crust

Geological Context

Orogenic Belt, Rifts

Basin Setting
Passive Margin, Continental Rifts

Geographic Context

Physical Geography
Marginal Seas, Shelves, Shelf-Slopes

Political Geography
United Kingdom of Great Britain & Northern Ireland


Survey Information
Marine, Multichannel 2D, >10s

Data Presentation
Vertical Scale - Time

Image Type
Vertical Profile