Processed seismic data of Cruise BGR96 1996

The BGR Antarctic cruise 1996 from 29th December 1995 to 6th February 1996 with M.S. AKADEMIK NEMCHINOV was designed to acquire new marine geophysical data for a better understanding of the geological processes, timing, occurrence and location of rifts of the initial break-up of southern Gondwanaland. A total of 3,836 km of multichannel seismic reflection data have been collected in the areas of the Cosmonaut Sea, the Astrid Ridge, the Lazarev Sea and the southern Agulhas Plateau in parallel with magnetic and gravity measurements. In addition magnetic and gravity measurements were carried out on transit. Major new observations of the collected MCS data include: (1) Volcanic rocks play a major part in the construction of the Astrid Ridge and also of the Agulhas Plateau. (2) The early opening of the Lazarev Sea was associated with excessive volcanism resulting in the emplacement of a voluminous volcanic body characterized by an internally divergent pattern of seaward-dipping reflectors. (3) The Astrid Fracture Zone continues in form of a sediment-filled basement depression flanked by distinct basement highs into the Lazarev Sea, and apparently swings to the west parallel to the coast of Queen Maud Land. (4) The thickness of sediments in the Cosmonaut Sea overlying oceanic crust of inferred Early Cretaceous age is in excess of 4s (twt), i.e. about 6,000 m. Three regional seismic markers of inferred Cretaceous, Late Eocene-Oligocene and Middle Miocene ages subdivide the sedimentary column.

Citation proposal
. Processed seismic data of Cruise BGR96 1996. https://gdk.gdi-de.org/geonetwork/srv/api/records/b5e7177d-7cab-44cc-bb72-b4c24fcf3f5e

INSPIRE
SDS

INSPIRE

Identification

File identifier: b5e7177d-7cab-44cc-bb72-b4c24fcf3f5e XML

Hierarchy level: Dataset

Online resource

Resource identifier

code: cd0d505f-aeaf-a69c-274b-c26e54fef34e

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 )

Agulhas Plateau
Lazarev Sea
Lasarew See

Geographic coverage

Temporal reference

Temporal extent

Date ( Creation ): 1996-02-06

Quality and validity

Lineage: During the period from 29th December 1995 to 6th February 1996 BGR acquired seismic lines at the Agulhas Plateau and in the Lazarev Sea. The lines BGR96-002A, BGR96-003 and BGR96-005 consist of raw data. The lines BGR96-001, BGR96-002, BGR96-004, BGR96-005A, BGR96-006, BGR96-007, BGR96-008, BGR96-009, BGR96-010, BGR96-011, BGR96-012, BGR96-013, BGR96-013A, BGR96-014, BGR96-015, BGR96-015A, BGR96-016 and BGR96-100 are stacked 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: BGR96 1996, (c) BGR, Hannover, 2019