ICONS atlas: AFR - Mouydir Basin

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Overview

This page bundles the available data for the Mouydir 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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Mouydir Basin location map

Basin name	Mouydir Basin
Region code	AFR
Basin ID	7170
Plate location/code	intra-cratonic/INC

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.

Mouydir Basin cross section

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Dynamic topography evolution for basin centroid

Mouydir 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

Mouydir Basin location map

Statistics - Mantle Lid thickness
Median	113.607
Mean	116.978
Scale	27.889
stdev	21.850
Z_min/Location	82.812/29.4667°Lat 5.2°Lon
Z_max/Location	153.705/ 25.4°Lat 4.23333°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

Mouydir Basin location map

Statistics - Depth of 550 deg isotherm
Median	-42.519
Mean	-43.402
Scale	4.902
stdev	4.045
Z_min/Location	-50.897/25.4°Lat 4.23333°Lon
Z_max/Location	-37.697/ 29.4667°Lat 5.2°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

Mouydir Basin location map

Statistics - Mobil isopachs
Median	1.290
Mean	1.348
Scale	1.050
stdev	0.747
Z_min/Location	0.196/25.7333°Lat 4.7°Lon
Z_max/Location	2.908/ 29.4667°Lat 5.2°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

Mouydir Basin location map

Statistics - Plain crustal thickness
Median	36.695
Mean	37.012
Scale	2.696
stdev	2.189
Z_min/Location	33.007/28.6°Lat 3.9°Lon
Z_max/Location	40.571/ 25.5°Lat 4.5°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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Base middle crust

Mouydir Basin location map

Statistics - Base middle crust
Median	-25.009
Mean	-25.398
Scale	1.564
stdev	1.390
Z_min/Location	-27.774/25.4°Lat 4.23333°Lon
Z_max/Location	-23.383/ 28.4333°Lat 3.83333°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

Mouydir Basin location map

Statistics - Base lower crust
Median	-37.037
Mean	-37.142
Scale	2.026
stdev	1.644
Z_min/Location	-39.825/25.4°Lat 4.13333°Lon
Z_max/Location	-34.305/ 28.3333°Lat 3.76667°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

Mouydir Basin location map

Statistics - Total crustal thickness
Median	37.572
Mean	37.659
Scale	2.127
stdev	1.713
Z_min/Location	34.679/28.2667°Lat 3.73333°Lon
Z_max/Location	40.427/ 25.4333°Lat 4.3°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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Base upper crust

Mouydir Basin location map

Statistics - Base upper crust
Median	-13.032
Mean	-13.068
Scale	0.386
stdev	0.303
Z_min/Location	-14.017/29.4667°Lat 5.2°Lon
Z_max/Location	-12.596/ 27.9°Lat 4.16667°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

Mouydir Basin location map

Statistics - Thermal lithospheric thickness
Median	150.019
Mean	154.636
Scale	29.130
stdev	23.260
Z_min/Location	121.727/29.4667°Lat 5.2°Lon
Z_max/Location	194.127/ 25.4°Lat 4.23333°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

Mouydir Basin location map

Statistics - Heatflow
Median	60.086
Mean	60.279
Scale	1.738
stdev	1.745
Z_min/Location	57.300/27.9667°Lat 3.9°Lon
Z_max/Location	64.740/ 25.9667°Lat 4.8°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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Topography (ETOPO2)

Mouydir Basin location map

Statistics - Topography (ETOPO2)
Median	510.000
Mean	564.580
Scale	74.130
stdev	185.861
Z_min/Location	298.000/29.2°Lat 5.2°Lon
Z_max/Location	1619.000/ 25.5667°Lat 4.53333°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

Mouydir Basin location map

Statistics - Base hard sediments
Median	-0.034
Mean	-0.130
Scale	0.824
stdev	0.672
Z_min/Location	-1.618/29.4667°Lat 5.2°Lon
Z_max/Location	0.872/ 25.8°Lat 4.73333°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

Mouydir Basin location map

Statistics - Temperature at 50km depth
Median	657.791
Mean	648.291
Scale	77.873
stdev	59.874
Z_min/Location	550.987/25.4°Lat 4.23333°Lon
Z_max/Location	739.386/ 29.4667°Lat 5.2°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

Mouydir Basin location map

Statistics - Laske sediment thickness
Median	0.783
Mean	0.953
Scale	0.569
stdev	0.615
Z_min/Location	0.061/25.4°Lat 4.23333°Lon
Z_max/Location	2.409/ 28.6°Lat 3.9°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

Mouydir Basin location map

Statistics - Lithospheric temperature gradient
Median	6.428
Mean	6.421
Scale	0.919
stdev	0.734
Z_min/Location	5.261/25.3°Lat 3.93333°Lon
Z_max/Location	7.906/ 29.0°Lat 5.0°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

Mouydir Basin location map

Statistics - Isostatic correction
Median	0.334
Mean	0.401
Scale	0.238
stdev	0.252
Z_min/Location	0.026/25.4°Lat 4.23333°Lon
Z_max/Location	0.986/28.6°Lat 3.9°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)

Mouydir Basin location map

Statistics - TTS (sediment)
Median	-0.452
Mean	-0.271
Scale	0.446
stdev	0.511
Z_min/Location	-0.982/25.9667°Lat 4.8°Lon
Z_max/Location	0.997/29.2667°Lat 4.96667°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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Beta (Sediment)

Mouydir Basin location map

Statistics - Beta (Sediment)
Median	0.945
Mean	0.971
Scale	0.050
stdev	0.065
Z_min/Location	0.888/25.9667°Lat 4.8°Lon
Z_max/Location	1.146/29.2667°Lat 4.96667°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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Crustal vs lithosph. extn.

Mouydir Basin location map

Statistics - Crustal vs lithosph. extn.
Median	-0.164
Mean	-0.180
Scale	0.168
stdev	0.134
Z_min/Location	-0.486/29.4667°Lat 5.2°Lon
Z_max/Location	0.005/25.3°Lat 3.93333°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

Mouydir Basin location map

Statistics - Anomalous TTS
Median	-0.960
Mean	-0.897
Scale	0.342
stdev	0.384
Z_min/Location	-1.519/27.8667°Lat 4.06667°Lon
Z_max/Location	0.312/29.4667°Lat 5.2°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

Mouydir Basin location map

Statistics - Predicted elevation
Median	769.103
Mean	756.365
Scale	377.287
stdev	306.082
Z_min/Location	248.953/25.3°Lat 3.93333°Lon
Z_max/Location	1401.110/29.4667°Lat 5.2°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)

Mouydir Basin location map

Statistics - Beta (Crust)
Median	1.096
Mean	1.091
Scale	0.081
stdev	0.064
Z_min/Location	0.992/25.5°Lat 4.5°Lon
Z_max/Location	1.219/28.6°Lat 3.9°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)

Mouydir Basin location map

Statistics - TTS (crust)
Median	0.688
Mean	0.626
Scale	0.524
stdev	0.425
Z_min/Location	-0.065/25.5°Lat 4.5°Lon
Z_max/Location	1.405/28.6°Lat 3.9°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

Mouydir Basin location map

Statistics - Differential Beta
Median	-0.122
Mean	-0.120
Scale	0.052
stdev	0.055
Z_min/Location	-0.219/27.9667°Lat 4.03333°Lon
Z_max/Location	0.050/29.4667°Lat 5.2°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