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Geodynamics of the Scotia/Antartica plates boundaries and paleoceanography of the Antarctic Deep Water. Oceanic basins development
Entry ID: CNDA-ESP_SCAN_2001-HE070



Summary
Abstract: In English:

The campaign has included continue profiles recording and seabed
sampling to characterise the nature of the different cortical
elements. It has included:

- OBS profile (SOPAS) from the margin of the South Orkney
Microcontinent, cutting Jane Basin and Jane Bank, to the oceanic crust
of the Weddell Sea. The profile, with 250 km of total length, has been
done in two consecutive sections.

- Sampling with dredger in oceanic crust scarps in the Weddell Sea
and in the Jane Bank. The points have been chosen after the seismic
profiles obtained during the SCAN 97 campaign.

- Multichannel seismic, gravimetry, magnetometry and sounding. The
objectives of this network were:

Study of the sedimentary body situated NE of the South Orkney
Microcontinent.

To complete the seismic network of the SCAN 97 campaign in the
continental and oceanic blocks zone situated to the east of the South
Orkney Microcontinent.

To obtain a profile through the active extension rift between the
Sandwich and Scotia plates. To study the spreading velocity of the
rift and to date the recent sedimentary bodies observed in the zone,
taking into account the oceanic crust age established by magnetic
anomalies.

Sampling of the rocks of the Sandwich/Scotia rift and of the
oceanic bank zone situated to the east of the South Orkney
Microcontinent.

Bathimetric network, gravimetry and magnetometry in the oceanic
bank zone to the east of the South Orkney Microcontinet (8 days). The
aim was to know the geometric characteristics of the different banks
in this zone with irregular bathimetry, as well as its nature. This
network completes the information obtained by means of some seismic
profiles done in the SCAN 97 campaign.


En Espanol:

En esta campana se ha realizado el levantamiento de perfiles
cont?nuos y la toma de muestras del fondo marino con objeto de
caracterizar la naturaleza de los diversos elementos corticales. Ha
incluido:

- Perfil OBS (SOPAS) desde el margen del Microcontinente de las
Orcadas del Sur, cortando la Jane Basin y el Jane Bank, hasta la
corteza oceanica del Mar de Weddell. El perfil, con unos 250 km
de longitud total, se ha realizado en dos tramos consecutivos.

- Toma de muestras con dragas, en escarpes de corteza oceanica
en el Mar de Weddell y en el Jane Bank. Los puntos han sido
seleccionados a partir de los perfiles sismicos obtenidos durante
la campana SCAN97.

- Sismica de multicanal, gravimetria, magnetometria
y sondas. Los objetivos de esta malla eran:

Estudio del cuerpo sedimentario situado al NE del Microcontinente
de las Orcadas del Sur.

Completar la malla de sismica de la campana SCAN97 en la
zona de bloques continentales y oceanicos situada a levante del
Microcontinente de las Orcadas del Sur.

Realizar un perfil a traves de la dorsal de expansion
activa entre las placas Sandwich y Scotia, con el fin de estudiar la
velocidad de expansion de la dorsal y datar los cuerpos
sedimentarios recientes que se observan en la region, teniendo en
cuenta la edad de la corteza oceanica establecida por sus
anomalias magneticas.

Toma de muestras de rocas de la Dorsal Sandwich/ Scotia y de la
zona de bancos oceanicos situada a levante del Microcontinente de
las Orcadas del Sur.

Malla de batimetria, gravimetria y magnetometria en
la zona de bancos oceanicos a levante del Microcontinente de las
Orcadas del Sur (8 d?as). La realizacion de esta malla ha
tenido como objetivo conocer las caracter?sticas geometricas
de los distintos bancos en esta zona de batimetria irregular,
asi como su naturaleza. Esta malla complementa la
informacion obtenida mediante algunos perfiles sismicos
realizados en la campana SCAN97.

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: -60.0 S: -61.0  E: -35.0  W: -46.0

Temporal Coverage
Start Date: 2000-12-07
Stop Date: 2001-01-08


Location Keywords
CONTINENT > ANTARCTICA > 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 >HUMIDITY    [Definition]
ATMOSPHERE >ATMOSPHERIC WATER VAPOR >WATER VAPOR    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS    [Definition]
ATMOSPHERE >ATMOSPHERIC RADIATION >SOLAR RADIATION    [Definition]
OCEANS >BATHYMETRY/SEAFLOOR TOPOGRAPHY >SEAFLOOR TOPOGRAPHY    [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]


ISO Topic Category
null
null
null
null


Platform
SHIPS    [Information]


Instrument
Gravimeters    [Information]
THERMOSALINOGRAPHS    [Information]
XBT >Expendable Bathythermographs    [Information]
MAGNETOMETERS    [Information]
GPS >Global Positioning System    [Information]
SEISMIC REFLECTION PROFILERS    [Information]
ADCP >Acoustic Doppler Current Profiler    [Information]
ECHO SOUNDERS    [Information]
FLUOROMETERS    [Information]


Keywords
PALEOCEANOGRAPHY
GEODYNAMICS
PLATE BOUNDARY
ANTARCTIC PLATE
SCOTIA PLATE


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: DIF 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



Creation and Review Dates
Last DIF Revision Date: 2016-04-01


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