ICONS atlas: AFR - Oudtshoorn Basin

To change the region, please select from the dropdown menu:

Regional basin list

To view the data for individual basins, select a basin from the dropdown menu below or click the basin name in the overview table. This will open a separate page with detailed maps.

Click here to return to the regional overview page

Open different basin page (same region)
Overview

This page bundles the available data for the Oudtshoorn Basin in the Africa. The images are hyperlinks and will open up a separate window with a high resolution PDF image of the map.
The basin data is derived from a lower resolution grid which has been upsampled using GMT. This could have introduced an accuracy which is beyond the original data resolution.

Select data to display:
Oudtshoorn Basin location map
Basin name Oudtshoorn Basin
Region code AFR
Basin ID 7650
No. of rings 1
Basin size [km²] 1530.2
Plate location/code /
Basin cross section

The basin cross section is automatically generated using the available crustal structure data sets. Sometimes the data labels are not plotted correctly, depending on the length of the section.

The location of the profile is indicated in all maps as dashed-dotted thin black line. For the endpoints of the profile, the two points of a given polygon located farthest away from each other were computed.

Oudtshoorn Basin cross section
Jump to the following datatype:


↑ back to the top
Dynamic topography evolution for basin centroid
Oudtshoorn Basin dynamic topography through time

The dynamic topography history for the basin is derived by tracking the basin centroid. The paleo-location for this point is computed using the EarthByte plate kinematic framework rotating the position back in time.

The dynamic topography model is derived from the S20RTS seismic tomography model (Ritsema et al., 99) by converting seismic velocites to density anomalies using an empirical scaling factor of 0.25. The density anomalies are then advected back in time to compute mantle flow with plate motions superimposed (using the EarthByte plate rotation framework) as surface boundary conditions. The dynamic topography is then derived from the computed density distribution using a free upper boundary. For details regarding the methodology see the following papers:

  • B. Steinberger, H. Schmeling, and G. Marquart. Large-scale lithospheric stress field and topography induced by global mantle circulation. Earth Planet. Sci. Lett., 186:75-91, 2001.
    doi: 10.1016/S0012-821X(01)00229-1.
  • B. Steinberger. Effects of latent heat release at phase boundaries on flow in the Earth's mantle, phase boundary topography and dynamic topography at the Earth's surface. Phys. Earth Planet. Int., 164:2-20, 2007.
    doi: 10.1016/j.pepi.2007.04.021.

Jump to the following datatype:

↑ back to the top

Observations

Mantle Lid thickness
Oudtshoorn Basin location map
Statistics - Mantle Lid thickness
Median 59.341
Mean 59.374
Scale 0.374
stdev 0.427
Z_min/Location 58.660/-33.4667°Lat 22.0°Lon
Z_max/Location 60.727/ -33.4667°Lat 22.9667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Depth of 550 deg isotherm
Oudtshoorn Basin location map
Statistics - Depth of 550 deg isotherm
Median -31.072
Mean -31.076
Scale 0.018
stdev 0.016
Z_min/Location -31.107/-33.4667°Lat 22.5333°Lon
Z_max/Location -31.054/ -33.6333°Lat 21.9667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Mobil isopachs
Oudtshoorn Basin location map
Statistics - Mobil isopachs
Median 0.800
Mean 0.814
Scale 0.279
stdev 0.237
Z_min/Location 0.397/-33.6333°Lat 22.0°Lon
Z_max/Location 1.248/ -33.4333°Lat 22.8333°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Plain crustal thickness
Oudtshoorn Basin location map
Statistics - Plain crustal thickness
Median 29.790
Mean 29.680
Scale 0.399
stdev 0.553
Z_min/Location 27.820/-33.4667°Lat 22.9667°Lon
Z_max/Location 30.387/ -33.4667°Lat 22.0°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Base middle crust
Oudtshoorn Basin location map
Statistics - Base middle crust
Median -22.028
Mean -21.962
Scale 0.219
stdev 0.334
Z_min/Location -22.402/-33.4667°Lat 22.0°Lon
Z_max/Location -20.784/ -33.4667°Lat 22.9667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Base lower crust
Oudtshoorn Basin location map
Statistics - Base lower crust
Median -30.759
Mean -30.706
Scale 0.329
stdev 0.378
Z_min/Location -31.305/-33.4667°Lat 22.0°Lon
Z_max/Location -29.432/ -33.4667°Lat 22.9667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Total crustal thickness
Oudtshoorn Basin location map
Statistics - Total crustal thickness
Median 31.043
Mean 30.992
Scale 0.335
stdev 0.390
Z_min/Location 29.689/-33.4667°Lat 22.9667°Lon
Z_max/Location 31.634/ -33.4667°Lat 22.0°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Base upper crust
Oudtshoorn Basin location map
Statistics - Base upper crust
Median -11.600
Mean -11.594
Scale 0.109
stdev 0.114
Z_min/Location -11.801/-33.4667°Lat 22.0667°Lon
Z_max/Location -11.238/ -33.4667°Lat 22.9667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Thermal lithospheric thickness
Oudtshoorn Basin location map
Statistics - Thermal lithospheric thickness
Median 90.340
Mean 90.366
Scale 0.086
stdev 0.082
Z_min/Location 90.256/-33.6333°Lat 21.9667°Lon
Z_max/Location 90.526/ -33.4667°Lat 22.5333°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Heatflow
Oudtshoorn Basin location map
Statistics - Heatflow
Median 57.159
Mean 57.358
Scale 0.333
stdev 0.614
Z_min/Location 56.662/-33.4667°Lat 22.0°Lon
Z_max/Location 59.361/ -33.4667°Lat 22.9667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Topography (ETOPO2)
Oudtshoorn Basin location map
Statistics - Topography (ETOPO2)
Median 417.000
Mean 434.625
Scale 180.136
stdev 155.440
Z_min/Location 211.000/-33.5333°Lat 21.6667°Lon
Z_max/Location 947.000/ -33.4333°Lat 22.8333°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Base hard sediments
Oudtshoorn Basin location map
Statistics - Base hard sediments
Median -0.967
Mean -1.026
Scale 0.161
stdev 0.206
Z_min/Location -1.612/-33.4667°Lat 22.9667°Lon
Z_max/Location -0.759/ -33.5333°Lat 21.6333°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Temperature at 50km depth
Oudtshoorn Basin location map
Statistics - Temperature at 50km depth
Median 889.320
Mean 889.261
Scale 0.254
stdev 0.260
Z_min/Location 888.699/-33.4667°Lat 22.4667°Lon
Z_max/Location 889.696/ -33.6333°Lat 21.9667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Laske sediment thickness
Oudtshoorn Basin location map
Statistics - Laske sediment thickness
Median 0.803
Mean 0.817
Scale 0.157
stdev 0.141
Z_min/Location 0.596/-33.6°Lat 21.7°Lon
Z_max/Location 1.137/ -33.4667°Lat 22.9667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Lithospheric temperature gradient
Oudtshoorn Basin location map
Statistics - Lithospheric temperature gradient
Median 10.184
Mean 10.182
Scale 0.013
stdev 0.012
Z_min/Location 10.157/-33.4667°Lat 22.5°Lon
Z_max/Location 10.199/ -33.6333°Lat 21.9333°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top

Computations

Beta (Crust)
Oudtshoorn Basin location map
Statistics - Beta (Crust)
Median 0.991
Mean 0.995
Scale 0.013
stdev 0.019
Z_min/Location 0.972/-33.4667°Lat 22.0°Lon
Z_max/Location 1.061/-33.4667°Lat 22.9667°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Isostatic correction
Oudtshoorn Basin location map
Statistics - Isostatic correction
Median 0.342
Mean 0.348
Scale 0.066
stdev 0.059
Z_min/Location 0.255/-33.6°Lat 21.7°Lon
Z_max/Location 0.480/-33.4667°Lat 22.9667°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
TTS (crust)
Oudtshoorn Basin location map
Statistics - TTS (crust)
Median -0.069
Mean -0.040
Scale 0.106
stdev 0.146
Z_min/Location -0.227/-33.4667°Lat 22.0°Lon
Z_max/Location 0.452/-33.4667°Lat 22.9667°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
TTS (sediment)
Oudtshoorn Basin location map
Statistics - TTS (sediment)
Median 0.626
Mean 0.678
Scale 0.092
stdev 0.150
Z_min/Location 0.498/-33.5°Lat 21.6667°Lon
Z_max/Location 1.132/-33.4667°Lat 22.9667°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Beta (Sediment)
Oudtshoorn Basin location map
Statistics - Beta (Sediment)
Median 1.087
Mean 1.095
Scale 0.014
stdev 0.024
Z_min/Location 1.068/-33.5°Lat 21.6667°Lon
Z_max/Location 1.169/-33.4667°Lat 22.9667°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Differential Beta
Oudtshoorn Basin location map
Statistics - Differential Beta
Median 0.101
Mean 0.100
Scale 0.011
stdev 0.009
Z_min/Location 0.083/-33.6333°Lat 21.8°Lon
Z_max/Location 0.119/-33.4333°Lat 22.8333°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Crustal vs lithosph. extn.
Oudtshoorn Basin location map
Statistics - Crustal vs lithosph. extn.
Median -0.010
Mean -0.005
Scale 0.014
stdev 0.020
Z_min/Location -0.030/-33.4667°Lat 22.0°Lon
Z_max/Location 0.061/-33.4667°Lat 22.9667°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Anomalous TTS
Oudtshoorn Basin location map
Statistics - Anomalous TTS
Median 0.720
Mean 0.719
Scale 0.067
stdev 0.057
Z_min/Location 0.600/-33.6333°Lat 21.8°Lon
Z_max/Location 0.821/-33.4667°Lat 22.1333°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top
Predicted elevation
Oudtshoorn Basin location map
Statistics - Predicted elevation
Median 1217.230
Mean 1212.160
Scale 35.386
stdev 40.236
Z_min/Location 1075.980/-33.4667°Lat 22.9667°Lon
Z_max/Location 1277.430/-33.4667°Lat 22.0°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

Jump to the following datatype:

↑ back to the top

This basin data is based on interpolated global grids and might contain gridding errors or wrongly interpolated data values.

Page generated 2007-09-30 21:53:47 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia