TGS and Bain Geophysical have teamed up to provide interpretation of TGS's Gigante survey data over the Gulf of Mexico, including depth to basement, crustal thickness, and basement terranes. The project will have three phases: determining crustal thickness and boundaries between continental and oceanic crust; mapping depth to magnetic basement; and identifying basement terranes through magnetic inversion. Deliverables will include grids, images, and shapefiles of the results as well as a summary report. Early participants in licensing the data will receive preferred pricing.

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Unlocking the secrets of the
Gulf of Mexico…
TGS and Bain Geophysical Announce:
Gulf of Mexico Crustal Study, resulting in:
Depth to basement and basement terrane
Depth to Moho
Crustal thickness
Continent-ocean boundary
Based on TGS’ GIGANTE Survey: Gravity + Magnetics + Seismic

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© 2016 TGS-NOPEC Geophysical Company ASA. All rights reserved.
TGS has teamed up with Bain Geophysical Services, a worldwide
expert in the integrated interpretation of gravity and magnetic
data, to provide high valued interpretation products based on
the Gigante survey data, combined with public domain data sets
over the entire Gulf of Mexico (GoM).
Phase I - Crustal Thickness and COB
Regional gravity inversion to derive depth to Moho, crustal
thickness, COB/OCT
Regional study area grids of: depth to Moho, crustal thickness,
crustal thinning factor, Beta
Regional study area: Continental/Oceanic crustal boundaries
(COB/OCT)
Detailed study area (where TGS gravity data are provided): grids
of above updated to reflect the areas of higher resolution input
gravity data
Phase 2 - Depth to Basement
Depth to Magnetic (Crystalline) Basement (over Gigante survey
coverage)
Computed, edited depth to magnetic basement points
Depth to magnetic basement (regional as first pass, followed
by updated in-fill grid, though one single project deliverable is
contemplated for later clients, interim products will be made
available as completed as an incentive for early participants)
Phase 3 - Basement Terranes
Basement Terranes - Magnetic Inversion to Derive Apparent
Susceptibility of Basement (Gigante)
Apparent basement susceptibility / petrology map using
magnetic inversion methods, including assessment of magnetic
terrane boundaries, compartments, etc. to assist delineation of
crustal boundaries and regional tectonic interpretation.
License of this project does not require a license for the
underlying seismic data. However, Licensees of more than 35%
of the Gigante 2D project will receive preferred pricing on this
interpretation project.
Deliverables:
• Grids will be provided in a variety of formats, including:
Landmark ascii, Geosoft (.grd), LCT and ArcView (.flt)
• Images will be provided as Geotif
• Polyline files will be provided as Geotif and Shapefiles
• PowerPoint summary report
Contact
For more information, contact your TGS sales representative
or Duncan Bate: Duncan.Bate@tgs.com
See the energy at TGS.com
© 2016 TGS-NOPEC Geophysical Company ASA. All rights reserved.
by updated in-fill grid, though one single project deliverable is
contemplated for later clients, interim products will be made
available as completed as an incentive for early participants)
For more information, contact your TGS sales representative
or Duncan Bate: Duncan.Bate@tgs.com