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Results: 1-25 of 1145

Alcudia deep seismic profile Regional Project

VSA Author: Puy Ayarza
Scenes: 0
Interpretations: 0
Date Created: 2021-02-12

The Alcudia deep seismic reflection profile, through part of southern Iberia.

Interpreting a deepwater thrust system, offshore Namibia Interpretation

VSA Author: Rob Butler
Date Created: 2021-02-18

An interpretation of a deepwater thrust belt. See associated scene if you'd like to use this to run a simple seismic interpretation exercise. The clean "scene" has, via its docs and links, a pdf that goes through an interpretation workflow and it is discussed in a video on "The Shear Zone" YouTube channel (access via "docs and links").

Deep structure - Outer Isles Fault - from WINCH 1 profile Interpretation

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

An interpretation of BIRPS' WINCH-1 profile (from 1982) that images the crust crust around the Outer Isles Fault, offshore N Scotland - along with the enigmatic sub-Moho structure. A discussion of this interpretation and how it has been built features in a video on "The Shear Zone" YouTube channel - connected via "docs and links"

Crustal structure, southern Finland, from FIRE 1 Interpretation

VSA Author: Rob Butler
Date Created: 2021-06-09

Annotated interpretation of the FIRE 1 South deep seismic line. This image ties to a YouTube video on "The Shear Zone" channel on deep seismic interpretatiuon of the FIRE profile... see doc and links to connect!

FIRE 1 CMP 11 000-20 000 Regional Project

VSA Author:
Scenes: 0
Interpretations: 2
Date Created: 2009-09-01

The southern part of the FIRE profile 1 covers CMPs 11 000-20 000 (c. 275-500 km). The grey scale image is of a migrated section, published in Kukkonen et al. 2006 (see docs & links for publication link).

Iberseis profile Regional Project

VSA Author: Puy Ayarza
Scenes: 0
Interpretations: 0
Date Created: 2021-02-12

A deep seismic profile through part of southern Iberia.

Crustal Structure, West Orkney Basin, imaged by MOIST Interpretation

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

An interpretation of the first profile acquired by the BIRPS programme in 1981: MOIST. It images the crustal structure of the West Orkney Basin area, offshore N Scotland. Compare with interpretations of other BIRPS profiles that were acquired over the following years, with increasingly effective acquisition and processing strategies (WINCH-1, DRUM and GRID-17).

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").

Deep structure Western Orkney Basin - from GRID17 (SLAVE) Interpretation

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

Interpretation of the GRID 17 profile (aka Synthetic Large-Aperture Velocity Experiment) through the West Orkney Basin, offshore N Scotland, that images the crustal structure (including the Outer Isles fault zone) and the enigmatic reflectors in the upper mantle (Flannan, "W")

Shallow subsurface MTCs Regional Project

VSA Author: Andrea Ortiz Karpf
Scenes: 1
Interpretations: 0
Date Created: 2015-03-19

Variance extraction coloured by subsurface elevation at the composite basal shear surface of shallow subsurface MTCs. The point values correspond to subsurface elevation. The MTC is continuous across a gorge between two anticlines. A more detailed explanation can be found in Ortiz-Karpf et al (2015). The link to the paper can be found in the docs and links tab.

ESCIN - 2 profile Regional Project

VSA Author: Puy Ayarza
Scenes: 0
Interpretations: 0
Date Created: 2021-02-12

Deep seismic profile from northern Iberia.

Differential vertical movement with mobile salt Interpretation

VSA Author: Rob Butler
Date Created: 2021-03-06

Annotated interpretation of stratigraphic relationships associated with salt mobility, for reconstructing the history of differential vertical movement - in a seismic interpretation course.

Salt mobility - imaging flaps Interpretation

VSA Author: Rob Butler
Date Created: 2021-03-06

An annotated interpretation, for discussion in a seismic interpretation course.

Reconstructing salt mobility - North Sea example Interpretation

VSA Author: Rob Butler
Date Created: 2021-03-06

Annotated interpretation, used for discussion in seismic interpretation training.

Inversion, North Sea Interpretation

VSA Author: Rob Butler
Date Created: 2021-02-19

An interpretation of an inversion structure from the North Sea, using the "regional" concept. Two regionals are shown, together with the relative motion of their stratal surfaces.

Volcanic geometries - Browse basin Interpretation

VSA Author: Rob Butler
Date Created: 2021-02-19

An interpretation of the volcanic bodies imaged offshore NW Australia. Note relative timing of the sill complex (later) to the volcanic edifies (earlier), as implied by the onlapping post volcano units, which show growth related to the "blister" fold directly above the sill complex....

Interpreting a deepwater thrust system: offshore Namibia Scene

VSA Author: Rob Butler
Interpretations: 1
Date Created: 2021-02-18

This image can be used as a simple interpretation exercise in structural geology. There is a debrief pdf in the doc and links that goes through an interpretation workflow - leading to the associated interpretation uploaded here. The aim here is to build an interpretation of stratigraphic horizons through a thrust belt. Three horizon are identified. trace these through the array of th...

ESCIN - 3.3 profile Regional Project

VSA Author: Puy Ayarza
Scenes: 0
Interpretations: 0
Date Created: 2021-02-12

A deep seismic profile through part of northern Iberia.

Contourite drift, Western Rockall margin Interpretation

VSA Author: Rob Butler
Date Created: 2021-02-11

A contourite drift, showing internal architecture indicative of apparent (in this orientation) up-slope migration of the sediment body. Significant active deep-marine currents are recorded for this part of the NE Atlantic.

Detail of basal surface of two slope channels, with cross sections of the levees Scene

VSA Author: Zoltan Sylvester
Organization: Shell
Interpretations: 0
Date Created: 2010-05-24

This is a 3D view of the basal surface of two slope channel-levee systems (see parent regional project), draped with seismic amplitude (red = high amplitude, blue = low amplitude). The channel to the right widens as it enters a slide scar. Thicker levees develop in this area. Seismic data is courtesy of CGGVeritas. Image presented at the "Frontiers of Seismic Geomorphology" showcase h...

Faults and graben (less VE version), offshore Tunisia Interpretation

VSA Author: Rob Butler
Date Created: 2021-02-06

A rather better representation of faults and graben structure, with less vertical exaggeration. See the alternate interpretation for comparison.

Seismic stratigraphy exercise Interpretation

VSA Author: Julien Moreau
Date Created: 2013-09-12

Correction of a seismic interpretation exercise I gave. The interpretation is uniquely based on reflection termination picking which indicate bounding surfaces. No model is involved. Colours between two successive bounding surfaces have no genetic meaning they only give a sort of chronology through the repetition of a colour cycle (blue, pink, green,yellow) . The objective of the exer...

Clinoforms, offshore Morocco Scene

VSA Author: Rob Butler
Interpretations: 1
Date Created: 2021-02-09

Detail of clinoforms seen at the shelf-break, offshore Morocco. These image links to an exercise in seismic stratigraphy interpretation. See linked interpretation for ... the interpretation!

Closely spaced faults - and imaging issues, offshore NW Morocco Interpretation

VSA Author: Rob Butler
Date Created: 2021-02-01

This and associated interpretation (annotated) shows array of "synthetic" normal faults offsetting high-frequrency reflectors (probable contourites).

ESCIN - 1 profile Regional Project

VSA Author: Puy Ayarza
Scenes: 0
Interpretations: 0
Date Created: 2021-02-12

Deep seismic profile from northern Iberia.