Processed seismic data of Cruise ANTVIII/6 1990

The POLARSTERN cruise ANTVIII/6 from 14. March to 30. April 1990 incorporated an integrated geophysical reconnaissance survey consisting of multichannel seismic measurements in parallel with gravimetric and magnetic measurements. The survey covered the plateaus Maud Rise, Astrid Ridge and Gunnerus Ridge off Queen Maud Land and the oceanic crust in their vicinity. Severe ice and weather conditions allowed seismic work only on the Gunnerus Ridge and on the oceanic crust. Together with previous BGR lines on the Astrid Ridge and the Maud Rise the new data improve considerably the understanding of the area. The main results are: 1. The oldest identified sea-floor spreading anomaly was M11 before the cruise, now it is M24. Thus spreading has begun not only 135 mill. years B.P., but at least 160 mill. years B.P. 2. The Gunnerus Ridge is strongly asymmetric. The mainly weak magnetic anomalies indicate that in contrast to the Astrid Ridge volcanism was not important during its development. 3. The magnetic anomalies are much stronger on the Astrid Ridge and west of it than east of the Astrid Ridge and on the Gunnerus Ridge. 4. The roughness of the basement surface of the oceanic crust varies in a wide range.
 
Citation proposal
. Processed seismic data of Cruise ANTVIII/6 1990. https://gdk.gdi-de.org/geonetwork/srv/api/records/dd441209-9466-4826-8766-7480e5f19025
 

Simple

Alternate title
ANTVIII/6 1990
Date ( Creation )
1990-04-30
Identifier
e85e4a67-3d77-6b22-0219-20e494bc9182
Status
completed Completed

  Point of contact

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 )
  • Atlantic-Indian Antarctic Basin
  • Antarktisches Becken
  • Astrid Ridge
  • Gunnerus Ridge
  • Maud Rise
  • Astrid-Rücken
  • Gunnerus-Rücken
  • Maud-Kuppe
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: ANTVIII/6 1990, (c) BGR, Hannover, 2019
Spatial representation type
Vector
Metadata language
English
Character set
UTF8
Topic category
  • Geoscientific information
N
S
E
W


Distribution format
  • Shapefile (n/a )

Transfer size
2
OnLine resource
ANTVIII/6 1990 (Shapefile)  

ANTVIII/6 1990 im Format ESRI Shape

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 14th March 1990 to the 30th April 1990 BGR acquired seismic lines off Queen Maud Land in the Atlantic-Indian Antarctic Basin. The lines ANT8-1 to ANT8-10 consist of raw data.

gmd:MD_Metadata

File identifier
dd441209-9466-4826-8766-7480e5f19025   XML
Metadata language
English
Character set
UTF8
Parent identifier
06a73c56-06a2-40d8-b806-466222b0760d
Hierarchy level
Dataset
Hierarchy level name
Geophysik
Date stamp
2023-11-14
Metadata standard name
INSPIRE Metadata Implementing Rules: Technical Guidelines based on EN ISO 19115 and EN ISO 19119
Metadata standard version
n/a

  Point of contact

Website
https://produktcenter.bgr.de  
 
 

  Overviews

  Provided by

  Views

Read here the full details and access to the data.

  Associated resources

Not available