ICONS atlas: AFR - Tindouf Basin

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Overview

This page bundles the available data for the Tindouf 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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Tindouf Basin location map
Basin name Tindouf Basin
Region code AFR
Basin ID 7160
Plate location/code compress foreland/CMF
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.

Tindouf Basin cross section
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Dynamic topography evolution for basin centroid
Tindouf 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
Tindouf Basin location map
Statistics - Mantle Lid thickness
Median 72.319
Mean 75.454
Scale 9.118
stdev 10.339
Z_min/Location 61.190/30.2333°Lat -7.06667°Lon
Z_max/Location 109.849/ 27.0667°Lat -5.3°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
Tindouf Basin location map
Statistics - Depth of 550 deg isotherm
Median -36.054
Mean -36.300
Scale 1.440
stdev 1.432
Z_min/Location -40.501/26.9333°Lat -6.3°Lon
Z_max/Location -34.000/ 30.0°Lat -7.0°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
Tindouf Basin location map
Statistics - Mobil isopachs
Median 3.886
Mean 4.347
Scale 3.061
stdev 2.411
Z_min/Location 0.330/25.6°Lat -11.9°Lon
Z_max/Location 8.765/ 27.9333°Lat -9.0°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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Plain crustal thickness
Tindouf Basin location map
Statistics - Plain crustal thickness
Median 38.135
Mean 37.496
Scale 0.975
stdev 2.057
Z_min/Location 25.157/27.7°Lat -11.4333°Lon
Z_max/Location 39.495/ 29.7667°Lat -7.6°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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Base middle crust
Tindouf Basin location map
Statistics - Base middle crust
Median -27.328
Mean -27.035
Scale 0.875
stdev 0.970
Z_min/Location -28.588/27.9667°Lat -9.5°Lon
Z_max/Location -22.741/ 27.7°Lat -11.4333°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
Tindouf Basin location map
Statistics - Base lower crust
Median -40.187
Mean -39.571
Scale 1.307
stdev 1.815
Z_min/Location -41.685/28.0°Lat -9.36667°Lon
Z_max/Location -30.750/ 27.7°Lat -11.4333°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
Tindouf Basin location map
Statistics - Total crustal thickness
Median 40.613
Mean 39.993
Scale 1.387
stdev 1.873
Z_min/Location 30.988/27.7°Lat -11.4333°Lon
Z_max/Location 42.111/ 28.0°Lat -9.33333°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
Tindouf Basin location map
Statistics - Base upper crust
Median -14.656
Mean -14.489
Scale 0.744
stdev 0.844
Z_min/Location -16.225/28.1°Lat -9.73333°Lon
Z_max/Location -12.097/ 26.4667°Lat -9.26667°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
Tindouf Basin location map
Statistics - Thermal lithospheric thickness
Median 112.909
Mean 115.447
Scale 7.174
stdev 9.201
Z_min/Location 101.999/30.3667°Lat -6.86667°Lon
Z_max/Location 148.954/ 27.0667°Lat -5.3°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
Tindouf Basin location map
Statistics - Heatflow
Median 68.271
Mean 67.980
Scale 3.922
stdev 3.940
Z_min/Location 57.769/26.5333°Lat -8.03333°Lon
Z_max/Location 77.699/ 28.9333°Lat -9.43333°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)
Tindouf Basin location map
Statistics - Topography (ETOPO2)
Median 442.000
Mean 448.571
Scale 103.782
stdev 131.878
Z_min/Location 118.000/26.8333°Lat -11.8°Lon
Z_max/Location 1489.000/ 30.1333°Lat -6.96667°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
Tindouf Basin location map
Statistics - Base hard sediments
Median -2.184
Mean -2.075
Scale 1.021
stdev 0.976
Z_min/Location -5.593/27.7°Lat -11.4333°Lon
Z_max/Location -0.013/ 26.4667°Lat -9.26667°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
Tindouf Basin location map
Statistics - Temperature at 50km depth
Median 774.493
Mean 771.630
Scale 28.654
stdev 28.310
Z_min/Location 690.672/27.0667°Lat -5.3°Lon
Z_max/Location 824.909/ 30.3667°Lat -6.86667°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
Tindouf Basin location map
Statistics - Laske sediment thickness
Median 2.684
Mean 3.020
Scale 2.942
stdev 2.370
Z_min/Location -0.593/30.3°Lat -6.96667°Lon
Z_max/Location 8.612/ 28.9°Lat -6.96667°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
Tindouf Basin location map
Statistics - Lithospheric temperature gradient
Median 8.301
Mean 8.183
Scale 0.610
stdev 0.619
Z_min/Location 6.144/27.0°Lat -6.1°Lon
Z_max/Location 9.033/ 30.3667°Lat -6.8°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
Tindouf Basin location map
Statistics - Isostatic correction
Median 1.091
Mean 1.161
Scale 1.124
stdev 0.854
Z_min/Location 0.000/30.3667°Lat -6.86667°Lon
Z_max/Location 2.968/28.9°Lat -6.96667°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)
Tindouf Basin location map
Statistics - TTS (sediment)
Median 0.782
Mean 0.914
Scale 0.595
stdev 0.826
Z_min/Location -0.549/28.7333°Lat -3.83333°Lon
Z_max/Location 4.190/27.8667°Lat -11.2333°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)
Tindouf Basin location map
Statistics - Beta (Sediment)
Median 1.111
Mean 1.152
Scale 0.094
stdev 0.170
Z_min/Location 0.934/28.7333°Lat -3.83333°Lon
Z_max/Location 2.154/27.8667°Lat -11.2333°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.
Tindouf Basin location map
Statistics - Crustal vs lithosph. extn.
Median -0.099
Mean -0.062
Scale 0.102
stdev 0.114
Z_min/Location -0.233/30.0°Lat -7.5°Lon
Z_max/Location 0.427/27.7°Lat -11.4333°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
Tindouf Basin location map
Statistics - Anomalous TTS
Median 0.823
Mean 0.875
Scale 0.481
stdev 0.581
Z_min/Location -0.300/28.6667°Lat -3.8°Lon
Z_max/Location 2.717/30.0333°Lat -6.16667°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
Tindouf Basin location map
Statistics - Predicted elevation
Median 1644.280
Mean 1565.370
Scale 199.361
stdev 224.831
Z_min/Location 826.353/27.7°Lat -11.4333°Lon
Z_max/Location 1847.500/29.9333°Lat -7.23333°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)
Tindouf Basin location map
Statistics - Beta (Crust)
Median 0.988
Mean 1.009
Scale 0.025
stdev 0.066
Z_min/Location 0.954/29.7667°Lat -7.6°Lon
Z_max/Location 1.498/27.7°Lat -11.4333°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)
Tindouf Basin location map
Statistics - TTS (crust)
Median -0.093
Mean 0.039
Scale 0.202
stdev 0.427
Z_min/Location -0.376/29.7667°Lat -7.6°Lon
Z_max/Location 2.600/27.7°Lat -11.4333°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
Tindouf Basin location map
Statistics - Differential Beta
Median 0.117
Mean 0.144
Scale 0.077
stdev 0.123
Z_min/Location -0.035/28.6667°Lat -3.8°Lon
Z_max/Location 0.728/27.9333°Lat -11.1333°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.

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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