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

Simple

Alternate title: BGR96 1996

Date ( Creation ): 1996-02-06

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

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 )

Agulhas Plateau
Lazarev Sea
Lasarew See

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: BGR96 1996, (c) BGR, Hannover, 2019

Spatial representation type: Vector

Metadata language: English

Character set: UTF8

Topic category

Geoscientific information

Distribution format

Shapefile (n/a )

Transfer size: 2

OnLine resource: BGR96 1996 (Shapefile)
BGR96 1996 im Format ESRI Shape

OnLine resource: Profile BGR96-001
Profile BGR96-001

OnLine resource: Profile BGR96-002
Profile BGR96-002

OnLine resource: Profile BGR96-004
Profile BGR96-004

OnLine resource: Profile BGR96-005A
Profile BGR96-005A

OnLine resource: Profile BGR96-006
Profile BGR96-006

OnLine resource: Profile BGR96-007
Profile BGR96-007

OnLine resource: Profile BGR96-008
Profile BGR96-008

OnLine resource: Profile BGR96-009
Profile BGR96-009

OnLine resource: Profile BGR96-010
Profile BGR96-010

OnLine resource: Profile BGR96-011
Profile BGR96-011

OnLine resource: Profile BGR96-012
Profile BGR96-012

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Profile BGR96-013

OnLine resource: Profile BGR96-013A
Profile BGR96-013A

OnLine resource: Profile BGR96-014
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Profile BGR96-015

OnLine resource: Profile BGR96-015A
Profile BGR96-015A

OnLine resource: Profile BGR96-016
Profile BGR96-016

OnLine resource: Profile BGR96-100
Profile BGR96-100

Hierarchy level: Dataset

Conformance result

Date ( Publication ): 2010-12-08

Explanation: siehe dazu die angegebene Durchführungsbestimmung

Statement: 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.