ICONS atlas: AFR - Khartoum Basin

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Overview

This page bundles the available data for the Khartoum 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.

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Khartoum Basin location map
Basin name Khartoum Basin
Region code AFR
Basin ID 7310
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.

Khartoum Basin cross section
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Dynamic topography evolution for basin centroid
Khartoum 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.

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Observations

Mantle Lid thickness
Khartoum Basin location map
Statistics - Mantle Lid thickness
Median 81.704
Mean 83.446
Scale 3.753
stdev 7.620
Z_min/Location 76.000/15.0°Lat 32.0°Lon
Z_max/Location 121.975/ 18.6°Lat 27.2667°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.

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Depth of 550 deg isotherm
Khartoum Basin location map
Statistics - Depth of 550 deg isotherm
Median -38.135
Mean -38.490
Scale 0.506
stdev 1.316
Z_min/Location -45.324/18.6°Lat 27.2667°Lon
Z_max/Location -37.000/ 16.0°Lat 32.0°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.

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Mobil isopachs
Khartoum Basin location map
Statistics - Mobil isopachs
Median 0.794
Mean 0.907
Scale 0.890
stdev 0.791
Z_min/Location -0.617/19.5333°Lat 32.3333°Lon
Z_max/Location 2.450/ 15.6°Lat 31.3667°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.

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Plain crustal thickness
Khartoum Basin location map
Statistics - Plain crustal thickness
Median 42.873
Mean 41.802
Scale 0.715
stdev 2.058
Z_min/Location 33.519/12.5°Lat 35.4°Lon
Z_max/Location 43.674/ 18.6°Lat 27.2667°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.

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Base middle crust
Khartoum Basin location map
Statistics - Base middle crust
Median -29.349
Mean -28.501
Scale 0.644
stdev 1.680
Z_min/Location -29.965/18.7°Lat 29.8667°Lon
Z_max/Location -21.364/ 12.5°Lat 35.4°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.

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Base lower crust
Khartoum Basin location map
Statistics - Base lower crust
Median -42.577
Mean -41.533
Scale 0.629
stdev 2.056
Z_min/Location -43.262/15.2°Lat 32.8333°Lon
Z_max/Location -33.124/ 12.5°Lat 35.4°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.

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Total crustal thickness
Khartoum Basin location map
Statistics - Total crustal thickness
Median 43.012
Mean 42.011
Scale 0.636
stdev 2.006
Z_min/Location 33.839/12.5°Lat 35.4°Lon
Z_max/Location 43.718/ 15.1333°Lat 32.8333°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.

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Base upper crust
Khartoum Basin location map
Statistics - Base upper crust
Median -14.442
Mean -13.956
Scale 0.357
stdev 0.944
Z_min/Location -14.814/18.7333°Lat 30.0333°Lon
Z_max/Location -10.319/ 12.5°Lat 35.4°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.

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Thermal lithospheric thickness
Khartoum Basin location map
Statistics - Thermal lithospheric thickness
Median 123.430
Mean 125.457
Scale 3.654
stdev 7.768
Z_min/Location 119.000/15.0°Lat 32.0°Lon
Z_max/Location 165.576/ 18.6°Lat 27.2667°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.

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Heatflow
Khartoum Basin location map
Statistics - Heatflow
Median 74.340
Mean 76.400
Scale 3.167
stdev 6.411
Z_min/Location 67.179/17.7667°Lat 33.5333°Lon
Z_max/Location 94.074/ 12.7°Lat 35.4°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.

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Topography (ETOPO2)
Khartoum Basin location map
Statistics - Topography (ETOPO2)
Median 401.000
Mean 401.416
Scale 71.165
stdev 85.337
Z_min/Location 182.000/19.2333°Lat 29.7667°Lon
Z_max/Location 762.000/ 18.2333°Lat 27.3667°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.

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Base hard sediments
Khartoum Basin location map
Statistics - Base hard sediments
Median 0.411
Mean 0.268
Scale 0.238
stdev 0.371
Z_min/Location -0.825/11.5°Lat 34.4°Lon
Z_max/Location 0.924/ 14.9°Lat 30.6°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.

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Temperature at 50km depth
Khartoum Basin location map
Statistics - Temperature at 50km depth
Median 731.998
Mean 726.549
Scale 13.080
stdev 22.534
Z_min/Location 611.658/18.6°Lat 27.2667°Lon
Z_max/Location 749.000/ 15.0°Lat 32.0°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.

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Laske sediment thickness
Khartoum Basin location map
Statistics - Laske sediment thickness
Median 0.328
Mean 0.316
Scale 0.223
stdev 0.169
Z_min/Location -0.047/12.9667°Lat 34.3333°Lon
Z_max/Location 0.565/ 11.5333°Lat 34.3667°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.

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Lithospheric temperature gradient
Khartoum Basin location map
Statistics - Lithospheric temperature gradient
Median 7.739
Mean 7.622
Scale 0.176
stdev 0.373
Z_min/Location 6.068/18.6°Lat 27.2667°Lon
Z_max/Location 8.139/ 12.1°Lat 35.0°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.

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Computations

Isostatic correction
Khartoum Basin location map
Statistics - Isostatic correction
Median 0.142
Mean 0.136
Scale 0.095
stdev 0.072
Z_min/Location 0.000/18.0667°Lat 28.3333°Lon
Z_max/Location 0.242/11.5333°Lat 34.3667°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.

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TTS (sediment)
Khartoum Basin location map
Statistics - TTS (sediment)
Median -0.571
Mean -0.405
Scale 0.271
stdev 0.406
Z_min/Location -0.955/14.9°Lat 30.6°Lon
Z_max/Location 0.587/11.5°Lat 34.4°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.

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Beta (Sediment)
Khartoum Basin location map
Statistics - Beta (Sediment)
Median 0.932
Mean 0.953
Scale 0.030
stdev 0.049
Z_min/Location 0.891/14.9°Lat 30.6°Lon
Z_max/Location 1.081/11.5°Lat 34.4°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.

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Crustal vs lithosph. extn.
Khartoum Basin location map
Statistics - Crustal vs lithosph. extn.
Median -0.004
Mean 0.017
Scale 0.048
stdev 0.066
Z_min/Location -0.067/14.1333°Lat 32.3333°Lon
Z_max/Location 0.230/12.7°Lat 35.4°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.

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Anomalous TTS
Khartoum Basin location map
Statistics - Anomalous TTS
Median -0.488
Mean -0.547
Scale 0.307
stdev 0.507
Z_min/Location -2.060/12.5°Lat 35.4°Lon
Z_max/Location 0.323/15.7333°Lat 33.7°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.

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Predicted elevation
Khartoum Basin location map
Statistics - Predicted elevation
Median 1569.370
Mean 1518.160
Scale 100.766
stdev 156.284
Z_min/Location 948.607/18.6°Lat 27.2667°Lon
Z_max/Location 1693.260/14.2°Lat 32.6333°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.

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Beta (Crust)
Khartoum Basin location map
Statistics - Beta (Crust)
Median 0.993
Mean 1.021
Scale 0.016
stdev 0.055
Z_min/Location 0.975/18.6°Lat 27.2667°Lon
Z_max/Location 1.270/12.5°Lat 35.4°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.

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TTS (crust)
Khartoum Basin location map
Statistics - TTS (crust)
Median -0.054
Mean 0.143
Scale 0.131
stdev 0.378
Z_min/Location -0.201/18.6°Lat 27.2667°Lon
Z_max/Location 1.664/12.5°Lat 35.4°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.

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Differential Beta
Khartoum Basin location map
Statistics - Differential Beta
Median -0.058
Mean -0.068
Scale 0.036
stdev 0.067
Z_min/Location -0.318/12.5°Lat 35.4°Lon
Z_max/Location 0.045/15.7333°Lat 33.7°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.

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

Page generated 2008-08-03 02:36:30 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia