ICONS atlas: AFR - Abu Gharadiq Basin

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Overview

This page bundles the available data for the Abu Gharadiq 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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Abu Gharadiq Basin location map

Basin name	Abu Gharadiq Basin
Region code	AFR
Basin ID	7740
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.

Abu Gharadiq Basin cross section

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Dynamic topography evolution for basin centroid

Abu Gharadiq 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

Abu Gharadiq Basin location map

Statistics - Mantle Lid thickness
Median	91.080
Mean	90.960
Scale	0.858
stdev	0.746
Z_min/Location	89.268/29.3333°Lat 29.3333°Lon
Z_max/Location	92.224/ 29.9°Lat 27.0°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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Depth of 550 deg isotherm

Abu Gharadiq Basin location map

Statistics - Depth of 550 deg isotherm
Median	-37.992
Mean	-37.991
Scale	0.005
stdev	0.007
Z_min/Location	-38.000/30.0°Lat 28.0°Lon
Z_max/Location	-37.958/ 29.3667°Lat 28.5°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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Mobil isopachs

Abu Gharadiq Basin location map

Statistics - Mobil isopachs
Median	4.980
Mean	4.883
Scale	1.335
stdev	0.954
Z_min/Location	3.443/29.9°Lat 29.5°Lon
Z_max/Location	6.365/ 29.5333°Lat 28.2333°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

Abu Gharadiq Basin location map

Statistics - Plain crustal thickness
Median	28.942
Mean	28.984
Scale	0.638
stdev	0.526
Z_min/Location	28.014/30.1333°Lat 27.5°Lon
Z_max/Location	30.198/ 29.3333°Lat 29.3333°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 middle crust

Abu Gharadiq Basin location map

Statistics - Base middle crust
Median	-22.977
Mean	-22.951
Scale	0.237
stdev	0.255
Z_min/Location	-23.404/29.3333°Lat 29.3333°Lon
Z_max/Location	-22.337/ 29.8°Lat 26.7333°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

Abu Gharadiq Basin location map

Statistics - Base lower crust
Median	-32.221
Mean	-32.287
Scale	0.498
stdev	0.441
Z_min/Location	-33.368/29.3333°Lat 29.3333°Lon
Z_max/Location	-31.482/ 29.9°Lat 27.0°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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Total crustal thickness

Abu Gharadiq Basin location map

Statistics - Total crustal thickness
Median	32.366
Mean	32.425
Scale	0.543
stdev	0.470
Z_min/Location	31.575/29.9°Lat 27.0°Lon
Z_max/Location	33.594/ 29.3333°Lat 29.3333°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 upper crust

Abu Gharadiq Basin location map

Statistics - Base upper crust
Median	-13.422
Mean	-13.425
Scale	0.099
stdev	0.104
Z_min/Location	-13.671/29.3333°Lat 29.3333°Lon
Z_max/Location	-13.185/ 29.8°Lat 26.7333°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

Abu Gharadiq Basin location map

Statistics - Thermal lithospheric thickness
Median	123.427
Mean	123.385
Scale	0.361
stdev	0.313
Z_min/Location	122.698/29.3667°Lat 28.4°Lon
Z_max/Location	124.000/ 30.0°Lat 28.0°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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Heatflow

Abu Gharadiq Basin location map

Statistics - Heatflow
Median	59.711
Mean	60.267
Scale	1.370
stdev	1.538
Z_min/Location	58.100/30.1667°Lat 27.6333°Lon
Z_max/Location	63.738/ 29.3333°Lat 29.3333°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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Topography (ETOPO2)

Abu Gharadiq Basin location map

Statistics - Topography (ETOPO2)
Median	46.000
Mean	54.575
Scale	152.708
stdev	107.864
Z_min/Location	-98.000/29.4333°Lat 26.9667°Lon
Z_max/Location	261.000/ 29.3333°Lat 29.3333°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

Abu Gharadiq Basin location map

Statistics - Base hard sediments
Median	-3.293
Mean	-3.303
Scale	0.119
stdev	0.100
Z_min/Location	-3.571/30.1667°Lat 27.6333°Lon
Z_max/Location	-3.118/ 29.6333°Lat 29.7°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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Temperature at 50km depth

Abu Gharadiq Basin location map

Statistics - Temperature at 50km depth
Median	731.396
Mean	731.565
Scale	0.804
stdev	0.787
Z_min/Location	730.000/30.0°Lat 28.0°Lon
Z_max/Location	733.627/ 29.3667°Lat 28.1°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

Abu Gharadiq Basin location map

Statistics - Laske sediment thickness
Median	4.187
Mean	4.207
Scale	0.461
stdev	0.403
Z_min/Location	3.372/29.9°Lat 30.0667°Lon
Z_max/Location	5.069/ 30.1°Lat 28.0°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

Abu Gharadiq Basin location map

Statistics - Lithospheric temperature gradient
Median	7.762
Mean	7.765
Scale	0.033
stdev	0.028
Z_min/Location	7.705/30.0°Lat 28.0°Lon
Z_max/Location	7.827/ 29.3667°Lat 28.0333°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

Abu Gharadiq Basin location map

Statistics - Isostatic correction
Median	1.636
Mean	1.641
Scale	0.161
stdev	0.140
Z_min/Location	1.346/29.9°Lat 30.0667°Lon
Z_max/Location	1.934/30.1°Lat 28.0°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)

Abu Gharadiq Basin location map

Statistics - TTS (sediment)
Median	1.637
Mean	1.662
Scale	0.149
stdev	0.135
Z_min/Location	1.450/29.7667°Lat 28.0333°Lon
Z_max/Location	2.007/30.0333°Lat 30.2333°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)

Abu Gharadiq Basin location map

Statistics - Beta (Sediment)
Median	1.265
Mean	1.270
Scale	0.030
stdev	0.028
Z_min/Location	1.228/29.7667°Lat 28.0333°Lon
Z_max/Location	1.345/30.0333°Lat 30.2333°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.

Abu Gharadiq Basin location map

Statistics - Crustal vs lithosph. extn.
Median	0.007
Mean	0.005
Scale	0.024
stdev	0.020
Z_min/Location	-0.040/29.3333°Lat 29.3333°Lon
Z_max/Location	0.043/30.1333°Lat 27.5°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

Abu Gharadiq Basin location map

Statistics - Anomalous TTS
Median	1.675
Mean	1.643
Scale	0.145
stdev	0.138
Z_min/Location	1.362/30.0333°Lat 28.0°Lon
Z_max/Location	1.932/29.3333°Lat 29.3333°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

Abu Gharadiq Basin location map

Statistics - Predicted elevation
Median	822.734
Mean	828.309
Scale	57.751
stdev	49.777
Z_min/Location	737.443/29.9°Lat 27.0°Lon
Z_max/Location	948.009/29.3333°Lat 29.3333°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)

Abu Gharadiq Basin location map

Statistics - Beta (Crust)
Median	1.004
Mean	1.003
Scale	0.022
stdev	0.018
Z_min/Location	0.962/29.3333°Lat 29.3333°Lon
Z_max/Location	1.037/30.1333°Lat 27.5°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)

Abu Gharadiq Basin location map

Statistics - TTS (crust)
Median	0.030
Mean	0.019
Scale	0.172
stdev	0.141
Z_min/Location	-0.308/29.3333°Lat 29.3333°Lon
Z_max/Location	0.280/30.1333°Lat 27.5°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

Abu Gharadiq Basin location map

Statistics - Differential Beta
Median	0.272
Mean	0.268
Scale	0.028
stdev	0.024
Z_min/Location	0.220/29.9333°Lat 28.0333°Lon
Z_max/Location	0.321/30.0333°Lat 30.2333°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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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