ICONS atlas: AFR - Upper Egypt Basin

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Overview

This page bundles the available data for the Upper Egypt 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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Upper Egypt Basin location map

Basin name	Upper Egypt Basin
Region code	AFR
Basin ID	7280
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.

Upper Egypt Basin cross section

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Dynamic topography evolution for basin centroid

Upper Egypt 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

Upper Egypt Basin location map

Statistics - Mantle Lid thickness
Median	89.357
Mean	97.941
Scale	9.131
stdev	17.395
Z_min/Location	75.000/24.0°Lat 31.0°Lon
Z_max/Location	158.000/ 22.0°Lat 25.0°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

Upper Egypt Basin location map

Statistics - Depth of 550 deg isotherm
Median	-38.449
Mean	-40.155
Scale	1.498
stdev	3.359
Z_min/Location	-53.000/22.0°Lat 25.0°Lon
Z_max/Location	-34.484/ 27.6667°Lat 32.7333°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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Mobil isopachs

Upper Egypt Basin location map

Statistics - Mobil isopachs
Median	1.820
Mean	1.754
Scale	2.238
stdev	1.495
Z_min/Location	-0.316/20.6667°Lat 32.5°Lon
Z_max/Location	5.926/ 29.3667°Lat 27.9°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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Plain crustal thickness

Upper Egypt Basin location map

Statistics - Plain crustal thickness
Median	38.505
Mean	38.114
Scale	6.707
stdev	4.704
Z_min/Location	28.321/30.0°Lat 31.4667°Lon
Z_max/Location	44.824/ 22.6333°Lat 33.2°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

Upper Egypt Basin location map

Statistics - Base middle crust
Median	-27.488
Mean	-27.161
Scale	3.436
stdev	2.677
Z_min/Location	-33.009/28.7°Lat 23.2°Lon
Z_max/Location	-22.502/ 29.5°Lat 26.6333°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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Base lower crust

Upper Egypt Basin location map

Statistics - Base lower crust
Median	-39.443
Mean	-39.036
Scale	4.728
stdev	3.454
Z_min/Location	-44.495/22.6333°Lat 33.2°Lon
Z_max/Location	-31.762/ 29.9667°Lat 32.2333°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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Total crustal thickness

Upper Egypt Basin location map

Statistics - Total crustal thickness
Median	39.823
Mean	39.398
Scale	4.842
stdev	3.517
Z_min/Location	32.000/30.0°Lat 31.4667°Lon
Z_max/Location	44.793/ 22.6333°Lat 33.2°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

Upper Egypt Basin location map

Statistics - Base upper crust
Median	-14.279
Mean	-14.265
Scale	0.621
stdev	0.830
Z_min/Location	-17.446/28.9667°Lat 23.2667°Lon
Z_max/Location	-12.155/ 29.0°Lat 32.6667°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

Upper Egypt Basin location map

Statistics - Thermal lithospheric thickness
Median	127.585
Mean	137.339
Scale	9.950
stdev	19.340
Z_min/Location	114.571/27.8°Lat 32.6667°Lon
Z_max/Location	200.000/ 22.0°Lat 25.0°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

Upper Egypt Basin location map

Statistics - Heatflow
Median	68.460
Mean	69.093
Scale	4.927
stdev	5.521
Z_min/Location	57.900/29.3667°Lat 24.1°Lon
Z_max/Location	89.916/ 22.0667°Lat 33.4°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)

Upper Egypt Basin location map

Statistics - Topography (ETOPO2)
Median	267.000
Mean	292.024
Scale	148.260
stdev	176.319
Z_min/Location	-147.000/29.3°Lat 27.1667°Lon
Z_max/Location	1367.000/ 28.7333°Lat 32.3333°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

Upper Egypt Basin location map

Statistics - Base hard sediments
Median	-0.482
Mean	-0.922
Scale	1.465
stdev	1.419
Z_min/Location	-3.514/28.5333°Lat 26.7°Lon
Z_max/Location	1.049/ 23.3667°Lat 26.4667°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

Upper Egypt Basin location map

Statistics - Temperature at 50km depth
Median	725.051
Mean	698.399
Scale	25.497
stdev	52.646
Z_min/Location	539.000/22.0°Lat 25.0°Lon
Z_max/Location	813.864/ 27.6667°Lat 32.7333°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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Laske sediment thickness

Upper Egypt Basin location map

Statistics - Laske sediment thickness
Median	1.403
Mean	1.707
Scale	1.157
stdev	1.098
Z_min/Location	-0.017/20.6667°Lat 32.5°Lon
Z_max/Location	4.306/ 29.3667°Lat 27.9°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

Upper Egypt Basin location map

Statistics - Lithospheric temperature gradient
Median	7.333
Mean	7.117
Scale	0.729
stdev	0.735
Z_min/Location	5.071/22.0°Lat 25.0°Lon
Z_max/Location	8.395/ 28.2°Lat 32.5°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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Computations

Isostatic correction

Upper Egypt Basin location map

Statistics - Isostatic correction
Median	0.589
Mean	0.698
Scale	0.474
stdev	0.432
Z_min/Location	0.000/20.9333°Lat 32.4667°Lon
Z_max/Location	1.677/29.3667°Lat 27.9°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)

Upper Egypt Basin location map

Statistics - TTS (sediment)
Median	-0.182
Mean	0.224
Scale	0.947
stdev	1.026
Z_min/Location	-1.366/23.4°Lat 26.4333°Lon
Z_max/Location	2.463/28.1333°Lat 28.0333°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)

Upper Egypt Basin location map

Statistics - Beta (Sediment)
Median	0.977
Mean	1.050
Scale	0.112
stdev	0.154
Z_min/Location	0.851/23.4°Lat 26.4333°Lon
Z_max/Location	1.460/28.1333°Lat 28.0333°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.

Upper Egypt Basin location map

Statistics - Crustal vs lithosph. extn.
Median	0.076
Mean	0.055
Scale	0.113
stdev	0.114
Z_min/Location	-0.238/24.0°Lat 31.0°Lon
Z_max/Location	0.311/30.0°Lat 31.4667°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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Anomalous TTS

Upper Egypt Basin location map

Statistics - Anomalous TTS
Median	-0.421
Mean	-0.428
Scale	0.447
stdev	0.485
Z_min/Location	-1.834/25.9667°Lat 28.0333°Lon
Z_max/Location	0.727/28.0667°Lat 28.0667°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

Upper Egypt Basin location map

Statistics - Predicted elevation
Median	1162.590
Mean	1158.110
Scale	244.658
stdev	263.068
Z_min/Location	239.698/22.0°Lat 25.0°Lon
Z_max/Location	1693.460/24.0°Lat 31.0°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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Beta (Crust)

Upper Egypt Basin location map

Statistics - Beta (Crust)
Median	1.080
Mean	1.109
Scale	0.173
stdev	0.143
Z_min/Location	0.928/22.6333°Lat 33.2°Lon
Z_max/Location	1.468/30.0°Lat 31.4667°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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TTS (crust)

Upper Egypt Basin location map

Statistics - TTS (crust)
Median	0.578
Mean	0.652
Scale	1.261
stdev	0.885
Z_min/Location	-0.610/22.6333°Lat 33.2°Lon
Z_max/Location	2.494/30.0°Lat 31.4667°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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Differential Beta

Upper Egypt Basin location map

Statistics - Differential Beta
Median	-0.054
Mean	-0.058
Scale	0.057
stdev	0.076
Z_min/Location	-0.274/26.1°Lat 28.0333°Lon
Z_max/Location	0.174/28.1°Lat 28.0333°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