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

INSPIRE
SDS

INSPIRE

Identification

File identifier: a6ef1127-490b-4df7-ab6d-8301d0c3c66c XML

Hierarchy level: Dataset

Online resource

Resource identifier

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

Metadata language: English

Spatial representation type: Vector

Encoding

Format: Shapefile

Version: n/a

Projection

Classification of data and services

Topic category

Geoscientific information

Classification of data and services

Coupled resource

Classification of data and services

Coupled resource

Keywords

GEMET - INSPIRE themes, version 1.0 ( Theme )

Geologie
geology

GEMET - Concepts, version 2.4 ( Theme )

geophysics
Geophysik
raw material
Rohstoff

Other keywords

Keywords ( Theme )

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

Keywords ( Place )

Central East Atlantic
Zentraler Ostatlantik
Marokko
Morocco
Mauretanien
Mauritania

Geographic coverage

Temporal reference

Temporal extent

Date ( Creation ): 1979-10-21

Quality and validity

Lineage: 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.

Conformity

Explanation: siehe dazu die angegebene Durchführungsbestimmung

Restrictions on access and use

Access 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