ICONS atlas: AFR - Mouka-Oudda Basin

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Overview

This page bundles the available data for the Mouka-Oudda 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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Mouka-Oudda Basin location map
Basin name Mouka-Oudda Basin
Region code AFR
Basin ID 7530
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.

Mouka-Oudda Basin cross section
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Dynamic topography evolution for basin centroid
Mouka-Oudda 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
Mouka-Oudda Basin location map
Statistics - Mantle Lid thickness
Median 95.088
Mean 96.755
Scale 7.603
stdev 8.330
Z_min/Location 81.740/8.6°Lat 20.6333°Lon
Z_max/Location 123.533/ 6.3°Lat 22.8667°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
Mouka-Oudda Basin location map
Statistics - Depth of 550 deg isotherm
Median -40.103
Mean -40.367
Scale 1.391
stdev 1.448
Z_min/Location -45.122/6.3°Lat 22.8667°Lon
Z_max/Location -38.027/ 8.6°Lat 20.6333°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.

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Mobil isopachs
Mouka-Oudda Basin location map
Statistics - Mobil isopachs
Median 0.061
Mean 0.153
Scale 0.095
stdev 0.198
Z_min/Location -0.057/7.4°Lat 23.4°Lon
Z_max/Location 1.059/ 8.6°Lat 20.6333°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.

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Plain crustal thickness
Mouka-Oudda Basin location map
Statistics - Plain crustal thickness
Median 39.599
Mean 39.704
Scale 1.506
stdev 1.293
Z_min/Location 37.912/8.6°Lat 22.5333°Lon
Z_max/Location 43.116/ 6.3°Lat 22.8667°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
Mouka-Oudda Basin location map
Statistics - Base middle crust
Median -26.287
Mean -26.364
Scale 1.300
stdev 1.118
Z_min/Location -29.328/6.3°Lat 22.8667°Lon
Z_max/Location -24.785/ 8.6°Lat 22.7°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
Mouka-Oudda Basin location map
Statistics - Base lower crust
Median -39.342
Mean -39.421
Scale 1.309
stdev 1.131
Z_min/Location -42.427/6.3°Lat 22.8667°Lon
Z_max/Location -37.831/ 8.6°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.

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Total crustal thickness
Mouka-Oudda Basin location map
Statistics - Total crustal thickness
Median 39.960
Mean 40.042
Scale 1.275
stdev 1.107
Z_min/Location 38.482/8.6°Lat 22.4667°Lon
Z_max/Location 43.009/ 6.3°Lat 22.8667°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
Mouka-Oudda Basin location map
Statistics - Base upper crust
Median -12.799
Mean -12.836
Scale 0.615
stdev 0.528
Z_min/Location -14.240/6.3°Lat 22.8667°Lon
Z_max/Location -12.085/ 8.56667°Lat 22.6667°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
Mouka-Oudda Basin location map
Statistics - Thermal lithospheric thickness
Median 134.528
Mean 136.797
Scale 7.938
stdev 9.056
Z_min/Location 123.395/8.6°Lat 20.6333°Lon
Z_max/Location 166.542/ 6.3°Lat 22.8667°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
Mouka-Oudda Basin location map
Statistics - Heatflow
Median 53.983
Mean 53.979
Scale 1.154
stdev 1.117
Z_min/Location 51.522/6.3°Lat 22.8°Lon
Z_max/Location 56.761/ 8.6°Lat 20.6333°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.

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Topography (ETOPO2)
Mouka-Oudda Basin location map
Statistics - Topography (ETOPO2)
Median 648.000
Mean 674.115
Scale 53.374
stdev 80.496
Z_min/Location 485.000/8.66667°Lat 21.1333°Lon
Z_max/Location 950.000/ 8.33333°Lat 22.3333°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
Mouka-Oudda Basin location map
Statistics - Base hard sediments
Median 0.240
Mean 0.282
Scale 0.185
stdev 0.178
Z_min/Location 0.076/8.6°Lat 22.0°Lon
Z_max/Location 0.708/ 6.46667°Lat 22.5°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
Mouka-Oudda Basin location map
Statistics - Temperature at 50km depth
Median 695.430
Mean 691.140
Scale 23.749
stdev 24.590
Z_min/Location 616.767/6.3°Lat 22.8667°Lon
Z_max/Location 732.835/ 8.6°Lat 20.6333°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.

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Laske sediment thickness
Mouka-Oudda Basin location map
Statistics - Laske sediment thickness
Median 0.083
Mean 0.099
Scale 0.109
stdev 0.103
Z_min/Location -0.154/8.63333°Lat 21.1°Lon
Z_max/Location 0.302/ 8.06667°Lat 23.0°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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Lithospheric temperature gradient
Mouka-Oudda Basin location map
Statistics - Lithospheric temperature gradient
Median 7.330
Mean 7.169
Scale 0.354
stdev 0.449
Z_min/Location 6.053/6.3°Lat 22.8667°Lon
Z_max/Location 7.757/ 8.0°Lat 21.0°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
Mouka-Oudda Basin location map
Statistics - Isostatic correction
Median 0.036
Mean 0.045
Scale 0.047
stdev 0.040
Z_min/Location 0.000/8.66667°Lat 21.0667°Lon
Z_max/Location 0.130/8.06667°Lat 23.0°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.

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TTS (sediment)
Mouka-Oudda Basin location map
Statistics - TTS (sediment)
Median -0.275
Mean -0.327
Scale 0.137
stdev 0.165
Z_min/Location -0.734/6.4°Lat 22.9°Lon
Z_max/Location -0.089/8.63333°Lat 21.4667°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)
Mouka-Oudda Basin location map
Statistics - Beta (Sediment)
Median 0.966
Mean 0.960
Scale 0.016
stdev 0.019
Z_min/Location 0.914/6.4°Lat 22.9°Lon
Z_max/Location 0.989/8.63333°Lat 21.4667°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.
Mouka-Oudda Basin location map
Statistics - Crustal vs lithosph. extn.
Median 0.094
Mean 0.084
Scale 0.038
stdev 0.043
Z_min/Location -0.054/8.6°Lat 20.6333°Lon
Z_max/Location 0.173/6.3°Lat 22.8667°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
Mouka-Oudda Basin location map
Statistics - Anomalous TTS
Median -0.508
Mean -0.494
Scale 0.150
stdev 0.139
Z_min/Location -0.705/8.6°Lat 22.7°Lon
Z_max/Location -0.048/8.6°Lat 20.6333°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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Predicted elevation
Mouka-Oudda Basin location map
Statistics - Predicted elevation
Median 1217.840
Mean 1228.470
Scale 91.907
stdev 109.312
Z_min/Location 917.027/6.3°Lat 22.8667°Lon
Z_max/Location 1541.300/8.6°Lat 20.6333°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)
Mouka-Oudda Basin location map
Statistics - Beta (Crust)
Median 1.025
Mean 1.023
Scale 0.039
stdev 0.033
Z_min/Location 0.941/6.3°Lat 22.8667°Lon
Z_max/Location 1.070/8.6°Lat 22.5333°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)
Mouka-Oudda Basin location map
Statistics - TTS (crust)
Median 0.187
Mean 0.167
Scale 0.290
stdev 0.249
Z_min/Location -0.491/6.3°Lat 22.8667°Lon
Z_max/Location 0.512/8.6°Lat 22.5333°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
Mouka-Oudda Basin location map
Statistics - Differential Beta
Median -0.063
Mean -0.063
Scale 0.022
stdev 0.020
Z_min/Location -0.094/8.6°Lat 22.6667°Lon
Z_max/Location -0.006/8.6°Lat 20.6333°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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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