ICONS atlas: AFR - Oued Mya Basin

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Overview

This page bundles the available data for the Oued Mya 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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Oued Mya Basin location map

Basin name	Oued Mya Basin
Region code	AFR
Basin ID	7670
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.

Oued Mya Basin cross section

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Dynamic topography evolution for basin centroid

Oued Mya 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

Oued Mya Basin location map

Statistics - Mantle Lid thickness
Median	78.134
Mean	78.969
Scale	5.307
stdev	4.597
Z_min/Location	70.822/32.5°Lat 3.66667°Lon
Z_max/Location	92.980/ 28.6333°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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Depth of 550 deg isotherm

Oued Mya Basin location map

Statistics - Depth of 550 deg isotherm
Median	-36.342
Mean	-36.475
Scale	0.799
stdev	0.772
Z_min/Location	-38.795/28.6333°Lat 3.9°Lon
Z_max/Location	-34.863/ 32.5°Lat 3.66667°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

Oued Mya Basin location map

Statistics - Mobil isopachs
Median	3.804
Mean	3.639
Scale	0.555
stdev	0.559
Z_min/Location	2.128/31.7°Lat 2.86667°Lon
Z_max/Location	4.410/ 30.6667°Lat 3.8°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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Plain crustal thickness

Oued Mya Basin location map

Statistics - Plain crustal thickness
Median	32.479
Mean	32.688
Scale	0.573
stdev	0.950
Z_min/Location	30.852/30.0°Lat 2.9°Lon
Z_max/Location	36.827/ 29.5333°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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Base middle crust

Oued Mya Basin location map

Statistics - Base middle crust
Median	-24.162
Mean	-24.288
Scale	0.308
stdev	0.429
Z_min/Location	-25.942/29.5333°Lat 5.2°Lon
Z_max/Location	-23.403/ 28.6333°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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Base lower crust

Oued Mya Basin location map

Statistics - Base lower crust
Median	-35.504
Mean	-35.653
Scale	0.336
stdev	0.642
Z_min/Location	-38.502/29.5333°Lat 5.2°Lon
Z_max/Location	-34.415/ 28.6333°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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Total crustal thickness

Oued Mya Basin location map

Statistics - Total crustal thickness
Median	35.967
Mean	36.094
Scale	0.412
stdev	0.641
Z_min/Location	34.821/28.6333°Lat 3.9°Lon
Z_max/Location	38.978/ 29.5333°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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Base upper crust

Oued Mya Basin location map

Statistics - Base upper crust
Median	-14.067
Mean	-14.045
Scale	0.099
stdev	0.260
Z_min/Location	-14.858/30.1°Lat 2.9°Lon
Z_max/Location	-12.962/ 28.6333°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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Thermal lithospheric thickness

Oued Mya Basin location map

Statistics - Thermal lithospheric thickness
Median	114.702
Mean	115.063
Scale	5.795
stdev	4.639
Z_min/Location	106.834/32.5°Lat 3.66667°Lon
Z_max/Location	127.801/ 28.6333°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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Heatflow

Oued Mya Basin location map

Statistics - Heatflow
Median	64.435
Mean	64.501
Scale	3.067
stdev	2.789
Z_min/Location	58.757/28.6333°Lat 3.9°Lon
Z_max/Location	73.396/ 32.8667°Lat 6.03333°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)

Oued Mya Basin location map

Statistics - Topography (ETOPO2)
Median	304.000
Mean	320.942
Scale	108.230
stdev	109.649
Z_min/Location	129.000/32.8°Lat 6.0°Lon
Z_max/Location	648.000/ 32.1667°Lat 3.33333°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 hard sediments

Oued Mya Basin location map

Statistics - Base hard sediments
Median	-3.062
Mean	-2.964
Scale	0.229
stdev	0.470
Z_min/Location	-4.042/30.1333°Lat 2.9°Lon
Z_max/Location	-1.427/ 28.6667°Lat 3.96667°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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Temperature at 50km depth

Oued Mya Basin location map

Statistics - Temperature at 50km depth
Median	766.119
Mean	765.124
Scale	23.845
stdev	18.886
Z_min/Location	718.825/28.6333°Lat 3.9°Lon
Z_max/Location	800.381/ 32.5°Lat 3.66667°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

Oued Mya Basin location map

Statistics - Laske sediment thickness
Median	3.754
Mean	3.552
Scale	0.344
stdev	0.571
Z_min/Location	1.373/29.2333°Lat 4.9°Lon
Z_max/Location	4.080/ 31.6333°Lat 4.03333°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

Oued Mya Basin location map

Statistics - Lithospheric temperature gradient
Median	8.281
Mean	8.264
Scale	0.323
stdev	0.296
Z_min/Location	7.407/28.6333°Lat 3.9°Lon
Z_max/Location	8.894/ 32.5333°Lat 3.8°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

Oued Mya Basin location map

Statistics - Isostatic correction
Median	1.484
Mean	1.408
Scale	0.122
stdev	0.211
Z_min/Location	0.576/29.2333°Lat 4.9°Lon
Z_max/Location	1.598/31.6333°Lat 4.03333°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)

Oued Mya Basin location map

Statistics - TTS (sediment)
Median	1.531
Mean	1.557
Scale	0.129
stdev	0.317
Z_min/Location	0.448/28.6667°Lat 3.96667°Lon
Z_max/Location	2.648/30.0667°Lat 2.9°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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Beta (Sediment)

Oued Mya Basin location map

Statistics - Beta (Sediment)
Median	1.243
Mean	1.252
Scale	0.026
stdev	0.065
Z_min/Location	1.061/28.6667°Lat 3.96667°Lon
Z_max/Location	1.512/30.0667°Lat 2.9°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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Crustal vs lithosph. extn.

Oued Mya Basin location map

Statistics - Crustal vs lithosph. extn.
Median	-0.025
Mean	-0.012
Scale	0.039
stdev	0.042
Z_min/Location	-0.082/32.5°Lat 3.66667°Lon
Z_max/Location	0.083/29.7333°Lat 3.06667°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

Oued Mya Basin location map

Statistics - Anomalous TTS
Median	1.616
Mean	1.631
Scale	0.144
stdev	0.216
Z_min/Location	0.595/28.6333°Lat 3.9°Lon
Z_max/Location	2.281/30.1333°Lat 2.9°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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Predicted elevation

Oued Mya Basin location map

Statistics - Predicted elevation
Median	1321.300
Mean	1292.370
Scale	67.730
stdev	85.019
Z_min/Location	986.852/28.6333°Lat 3.9°Lon
Z_max/Location	1414.660/32.5°Lat 3.66667°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)

Oued Mya Basin location map

Statistics - Beta (Crust)
Median	0.997
Mean	0.991
Scale	0.018
stdev	0.028
Z_min/Location	0.879/29.5333°Lat 5.2°Lon
Z_max/Location	1.050/30.0°Lat 2.9°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)

Oued Mya Basin location map

Statistics - TTS (crust)
Median	-0.023
Mean	-0.074
Scale	0.138
stdev	0.229
Z_min/Location	-1.074/29.5333°Lat 5.2°Lon
Z_max/Location	0.369/30.0°Lat 2.9°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

Oued Mya Basin location map

Statistics - Differential Beta
Median	0.256
Mean	0.260
Scale	0.022
stdev	0.048
Z_min/Location	0.079/28.6333°Lat 3.9°Lon
Z_max/Location	0.463/30.1°Lat 2.9°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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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