Processed seismic data of Cruise VA79 1979

In the period from September 25th to October 19th 1979 5,260 km of magnetic, gravity and bathymetric lines and 3,567 km of reflection seismic lines were recovered on the first leg of the VALDIVIA Westafrica-cruise 1979 with the research objective to study similarities and differences in the geological development of physiographically different Northwest African continental margin segments. Test measurements have been carried out during this cruise with an “implosive" seismic sound source. The software for acquisition, calculation and presentation of gravity, magnetic and bathymetric data has been developed so that onboard presentation of free-air anomalies, Bouguer anomalies, anomalies of the earth's magnetic field and of the bathymetry could be achieved. Differences within the regional geological development of the Northwest African continental margin has been confirmed. Parts of the Moroccan continental margin are modified by a Cretaceous epirogenic uplift associated with block—faulting and halokinesis. Tertiary folding of the Western High Atlas extends into the shelf of the Tafelney Plateau segment.

Citation proposal
. Processed seismic data of Cruise VA79 1979. https://gdk.gdi-de.org/geonetwork/srv/api/records/a6ef1127-490b-4df7-ab6d-8301d0c3c66c

Simple

Alternate title: VA79 1979

Date ( Creation ): 1979-10-21

Identifier: 7a69b1a7-1ee2-b70a-e3d4-e7b37dacfe20

Status: completed Completed

Point of contact

Federal Institute for Geosciences and Natural Resources

Stilleweg 2 Hannover 30655

GEMET - INSPIRE themes, version 1.0 ( Theme )

Geologie
geology

GEMET - Concepts, version 2.4 ( Theme )

geophysics
Geophysik
raw material
Rohstoff

Keywords ( Theme )

Marine geology
Meeresgeologie
Seismics
Seismik
Two-dimensional seismic reflection
zweidimensionale Reflektionsseismik

Keywords ( Place )

Central East Atlantic
Zentraler Ostatlantik
Marokko
Morocco
Mauretanien
Mauritania

Access constraints: Other restrictions

Use constraints: Other restrictions

Other constraints: Allgemeine Geschäftsbedingungen, siehe http://www.bgr.bund.de/AGB - General terms and conditions, see http://www.bgr.bund.de/AGB_en. Die bereitgestellten Informationen sind bei Weiterverwendung wie folgt zu zitieren: Datenquelle: VA79 1979, (c) BGR, Hannover, 1979

Spatial representation type: Vector

Metadata language: English

Character set: UTF8

Topic category

Geoscientific information

Distribution format

Shapefile (n/a )

Transfer size: 2

OnLine resource: VA79 1979 (Shapefile)
VA79 1979 im Format ESRI Shape

OnLine resource: Profile VA79-02
Profile VA79-02

OnLine resource: Profile VA79-03
Profile VA79-03

OnLine resource: Profile VA79-04
Profile VA79-04

OnLine resource: Profile VA79-05
Profile VA79-05

OnLine resource: Profile VA79-07
Profile VA79-07

OnLine resource: Profile VA79-15
Profile VA79-15

OnLine resource: Profile VA79-17
Profile VA79-17

OnLine resource: Profile VA79-26
Profile VA79-26

OnLine resource: Profile VA79-27
Profile VA79-27

OnLine resource: Profile VA79-35
Profile VA79-35

OnLine resource: Karte im BGR-Geoviewer
Karte im BGR-Geoviewer

Hierarchy level: Dataset

Conformance result

Date ( Publication ): 2010-12-08

Explanation: siehe dazu die angegebene Durchführungsbestimmung

Statement: During the period from the 25th September to the 18th October 1979 BGR acquired seismic lines off West Africa. Lines VA79-01, VA79-08, VA79-09, VA79-10, VA79-11, VA79-12, VA79-13A, VA79-13B, VA79-14, VA79-16, VA79-16A, VA79-17A, VA79-21, VA79-22, VA79-24, VA79-25 and VA79-28 to VA79-34 are raw data. VA79-02, VA79-03, VA79-04, VA79-15, VA79-17, VA79-26, VA79-27 and VA79-35 are processed (stacked) data. Lines VA79-05 and VA79-07 are processed (migrated) data.