(2023). Gridded geophysical shipboard data on the South Intra-Transform segment of the St. Paul transform system (COLMEIA cruise). SEANOE. https://doi.org/10.17882/92690
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Gridded geophysical shipboard data on the South Intra-Transform segment of the St. Paul transform system (COLMEIA cruise)
Gridded shipboard multibeam bathymetry and gravity datasets acquired during the COLMEIA cruise (2013). Gridded sediment thickness derived from seismic data. Gridded crustal thickness computed from gravity. The gridded datasets cover the South intra-transform segment of the St. Paul transform fault system.
Grids created with the GMT software.
Grid details as follows:
Bathymetry: Grid file format: nf = GMT netCDF format (32-bit float), CF-1.7
x_min: -26.6678081446 x_max: -24.4991923884 x_inc: 0.000898349526186 name: longitude n_columns: 2415
y_min: 0.416125587833 y_max: 0.917145899441 y_inc: 0.000904368793517 name: latitude n_rows: 555
Sediment thickness: Grid file format: nf = GMT netCDF format (32-bit float), CF-1.7
x_min: -26.6697086826 x_max: -24.4984586826 x_inc: 0.00225 name: longitude n_columns: 966
y_min: 0.4154644221 y_max: 0.9194644221 y_inc: 0.00225 name: latitude n_rows: 225
Free air anomaly (merged shipboard and satellite data): Grid file format: nf = GMT netCDF format (32-bit float), CF-1.7
x_min: -26.6666666667 x_max: -24.5 x_inc: 0.0166666666667 (1 min) name: longitude n_columns: 131
y_min: 0.416666666667 y_max: 0.916666666667 y_inc: 0.0166666666667 (1 min) name: latitude n_rows: 31
Gravity anomalies (Mantle Bouguer, Residual Mantle Bouguer): Grid file format: nf = GMT netCDF format (32-bit float), CF-1.7
x_min: -26.6666666667 x_max: -24.5 x_inc: 0.00333333333333 (12 sec) name: longitude n_columns: 651
y_min: 0.416666666667 y_max: 0.916666666667 y_inc: 0.00333333333333 (12 sec) name: latitude n_rows: 151
Crustal thickness derived from the gravity anomalies: Grid file format: nf = GMT netCDF format (32-bit float), CF-1.7
x_min: -26.6666666667 x_max: -24.5 x_inc: 0.00333333333333 (12 sec) name: longitude n_columns: 651
y_min: 0.416666666667 y_max: 0.916666666667 y_inc: 0.00333333333333 (12 sec) name: latitude n_rows: 151
Disciplines
Marine geology
Keywords
Mid-Oceanic Ridge, Transform faults, Mid-Atlantic Ridge, Saint Paul transform fault systm, Equatorial Atlantic, Multibeam bathymetry, Gravity anomaly, Crustal thickness, Marine geophysics, Tectonics, Detachment faults, Oceanic Core Complex, Oceanic lithosphere, Oceanic crust
Location
0.916N, 0.416S, -24.5E, -26.4W
Devices
Multibeam bathymetry acquired with NO L'Atalante Kongsberg EM122 echosounder.
Shipboard gravity data acquired with a Bodenseewerk KSS30 sensor.
Data
| File | Size | Format | Processing | Access | |
|---|---|---|---|---|---|
NetCDF grid of the multibeam bathymetry (St. Paul transform fault system, South Intra-transform segment) | 3 Mo | GMT NETCDF | Processed data | ||
Combined shipboard and satellite free air anomaly grid (St. Paul transform system South Intra-transform segment) | 17 Ko | GMT NETCDF | Processed data | ||
Mantle Bouguer Anomaly (St. Paul transform fault system, South Intra-transform segment) | 261 Ko | GMT NETCDF | Processed data | ||
Sediment thickness (St. Paul transform fault system, South Intra-transform segment) | 115 Ko | GMT NETCDF | Processed data | ||
Residual Mantle Bouguer Anomaly (St. Paul transform fault system, South Intra-transform segment) | 243 Ko | GMT NETCDF | Processed data | ||
Crustal (Low density layer) thickness (St. Paul transform fault system, South Intra-transform segment) | 267 Ko | GMT NETCDF | Processed data |
How to cite
Vincent Clément
