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Global Change Master Directory (GCMD)
Geodynamics and Paleoceanography of continental margins and basins: Northern Antarctic Peninsula.
Entry ID: CNDA-ESP_ANT94-0020-HE038


Summary
Abstract: In English:

The SCAN 97 oceanographic cruise focused in the analysis of the
northern Antarctic Peninsula and the areas implicated in the boundary
between the Antarctic, Scotia and Phoenix plates. The thematic
objectives comprise a tectonic and paleoceanographic study of selected
segments of active and passive continental margins, major strike-slip
faults with contrasting tectonic regime and associated basins. Powell
Basin and the northern boundary of the Weddell Sea have been
investigated as an example for the analysis of continental
fragmentation and modelling of extensional backarc basin development.

A particular attention was devoted to differentiate between local
factors associated with the tectonic evolution and factors of global
significance, such as eustatic-climatic oscillations, which have
controlled the growth patterns of the depositional
provinces. Reflection multichannel seismic profiles, multinarrov beam

bathymetry, high-resolution seismic profiles, gravimetric and
magnetometer profiles were obtained.

The data are being post-processed using the BIO HESPERIDES
shore-base facilities and in cooperation with other European
researchers. An international cooperation with prestigious European
laboratoires interested in the area of study has been established and
the activities of the project will be coordinated in the framework of
the ANTOSTRAT project of SCAR.

En Espanol:

La campana oceanografica SCAN 97 esta centrada en el
analisis del norte de la Pen?nsula Antartica y las
areas implicadas en el l?mite de las placas Antartica,
Scotia y Phoenix. Los objetivos tematicos comprenden el estudio
tectonico y paleoceanografico de segmentos seleccionados del
margen continental activo y pasivo y las principales fallas en
direccion, comparandolas con el regimen tectonico
y las cuencas asociadas. La Cuenca Powell y el limite norte del
mar de Weddel han sido estudiados como un ejemplo para el
analisis de la fragmentacion continental y como modelo de
desarrollo de cuencas de trasarco extensionales.

Se ha dedicado especial atencion para diferenciar entre
factores locales asociados a la evolucion tectonica local y
factores de caracter global, como las oscilaciones
eustaticas-clim?ticas, las cuales han controlado el
desarrollo de las diversas provincias deposicionales. Con el B/O
Hesperides, durante 24 d?as de campana en enero y
febrero de 1997, se han obtenido perfiles s?smicos de
reflexion multicanal, batimetria con sonda multihaz,
perfiles sismicos de alta resolucion y perfiles
gravimetricos y magnetometricos.

Los datos estan siendo procesados a posteriori usando el
equipamiento basado en tierra del Hesperides y en
cooperacion con otros investigadores europeos. Se ha establecido
una cooperacion internacional con prestigiosos laboratorios
europeos interesados en el area de estudio y las actividades del
proyecto seran coordinadas en el marco del proyecto ANTOSTRAT del
SCAR.

Related URL
Link: View Related Information
Description: In English: Information on the vessel's Hesperides,
oceanographic expeditions can be found on this page. The information
includes a summary of the scientific results, participating and other
data.

En Espanol: En esta pagina se encuentra
informacion sobre la campanas realizadas por el Buque
Oceanografico Hesperides: Resumen de los resultados
cientificos, organismos participantes y otros datos.

Geographic Coverage
 N: -57.0 S: -67.0  E: -33.0  W: -57.0

Data Set Citation
Version: Not provided


Temporal Coverage
Start Date: 1997-01-24
Stop Date: 1997-02-17


Location Keywords
CONTINENT > ANTARCTICA > Antarctic Peninsula > Weddell Sea
GEOGRAPHIC REGION > POLAR


Science Keywords
ATMOSPHERE >ATMOSPHERIC PRESSURE >ATMOSPHERIC PRESSURE MEASUREMENTS    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >SURFACE TEMPERATURE >AIR TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC WATER VAPOR >WATER VAPOR INDICATORS >HUMIDITY    [Definition]
ATMOSPHERE >ATMOSPHERIC WATER VAPOR >WATER VAPOR INDICATORS >WATER VAPOR    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS    [Definition]
ATMOSPHERE >ATMOSPHERIC RADIATION >SOLAR RADIATION    [Definition]
OCEANS >BATHYMETRY/SEAFLOOR TOPOGRAPHY >SEAFLOOR TOPOGRAPHY    [Definition]
OCEANS >BATHYMETRY/SEAFLOOR TOPOGRAPHY >FRACTURE ZONES    [Definition]
OCEANS >MARINE GEOPHYSICS >MARINE GRAVITY FIELD    [Definition]
OCEANS >MARINE GEOPHYSICS >MARINE MAGNETICS    [Definition]
OCEANS >BATHYMETRY/SEAFLOOR TOPOGRAPHY >OCEAN PLATEAUS/RIDGES    [Definition]
OCEANS >OCEAN OPTICS >FLUORESCENCE    [Definition]
OCEANS >OCEAN TEMPERATURE >WATER TEMPERATURE    [Definition]
OCEANS >SALINITY/DENSITY >CONDUCTIVITY    [Definition]
OCEANS >SALINITY/DENSITY >SALINITY    [Definition]
OCEANS >MARINE GEOPHYSICS >PLATE TECTONICS >SUBDUCTION    [Definition]


Platform
SHIPS    [Information]


Instrument
GRAVIMETERS    [Information]
THERMOSALINOGRAPHS    [Information]
MAGNETOMETERS    [Information]
GPS >Global Positioning System    [Information]
SEISMIC REFLECTION PROFILERS    [Information]
ECHO SOUNDERS    [Information]
FLUOROMETERS    [Information]


Keywords
PALEOCEANOGRAPHY
GEODYNAMICS
CONTINENTAL MARGINS
PLATE BOUNDARY
TRIPLE JUNCTION
FOREARC BASINS
ANTARCTIC PLATE
SCOTIA PLATE
PHOENIX PLATE
POWELL BASIN


Data Center
Unidad de Tecnologia Marina, Consejo Superior de Investigaciones Cientificas, Espana    [Information]
Data Center URL: http://www.utm.csic.es/

Data Center Personnel
Name: MIGUEL ANGEL OJEDA
Phone: +34932216416
Email: maojeda at utm.csic.es
Contact Address:
Centro Mediterraneo de Investigaciones Marinas y Ambientales
CSIC
Unidad de Tecnologia Marina
Paseo Maritimo, 37-39
City: Barcelona
Postal Code: 08003
Country: SPAIN



Distribution
Distribution_Media: CD-ROM, DAT tape
Distribution_Format: ASCII, BINARY


Personnel
ANTONIO BARRAGAN SANABRIA
Role: METADATA AUTHOR
Phone: +34913495731
Fax: +34913495929
Email: a.barragan at igme.es
Contact Address:
Centro Nacional de Datos Antarticos
Instituto Geologico y Minero de Espana
c/Rios Rosas 23
City: Madrid
Postal Code: 28003
Country: SPAIN


ANDRES MALDONADO LOPEZ
Role: INVESTIGATOR
Phone: +34958244159
Fax: +34958243384
Email: amaldona at goliat.ugr.es
Contact Address:
Instituto Andaluz de Ciencias de la Tierra - CSIC
Universidad de Granada
Facultad de Ciencias
C/ Fuentenueva, s/n
City: GRANADA
Province or State: GRANADA
Postal Code: E-18002
Country: SPAIN


Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 1970-01-01
Last DIF Revision Date: 2019-02-14



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