ICONS atlas: AFR - Reggane Basin

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Overview

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

Basin name	Reggane Basin
Region code	AFR
Basin ID	7690
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.

Reggane Basin cross section

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Dynamic topography evolution for basin centroid

Reggane 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

Reggane Basin location map

Statistics - Mantle Lid thickness
Median	97.131
Mean	98.274
Scale	14.637
stdev	13.933
Z_min/Location	74.053/28.4333°Lat -2.23333°Lon
Z_max/Location	134.497/ 24.8667°Lat 0.933333°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

Reggane Basin location map

Statistics - Depth of 550 deg isotherm
Median	-39.933
Mean	-40.229
Scale	2.100
stdev	2.289
Z_min/Location	-46.644/24.8667°Lat 0.933333°Lon
Z_max/Location	-36.046/ 28.4333°Lat -2.23333°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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Mobil isopachs

Reggane Basin location map

Statistics - Mobil isopachs
Median	1.862
Mean	2.382
Scale	1.456
stdev	1.699
Z_min/Location	-0.093/24.6333°Lat -1.23333°Lon
Z_max/Location	7.295/ 26.8°Lat -0.466667°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

Reggane Basin location map

Statistics - Plain crustal thickness
Median	37.214
Mean	37.336
Scale	0.362
stdev	0.381
Z_min/Location	36.715/26.1°Lat 0.766667°Lon
Z_max/Location	38.382/ 28.4333°Lat -2.23333°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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Base middle crust

Reggane Basin location map

Statistics - Base middle crust
Median	-25.826
Mean	-25.823
Scale	0.189
stdev	0.274
Z_min/Location	-26.846/27.2333°Lat -0.233333°Lon
Z_max/Location	-25.229/ 27.2333°Lat -2.9°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

Reggane Basin location map

Statistics - Base lower crust
Median	-37.928
Mean	-38.109
Scale	0.248
stdev	0.416
Z_min/Location	-39.535/27.4333°Lat -0.433333°Lon
Z_max/Location	-37.541/ 25.3°Lat 0.0°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

Reggane Basin location map

Statistics - Total crustal thickness
Median	38.188
Mean	38.382
Scale	0.254
stdev	0.433
Z_min/Location	37.778/25.3333°Lat 0.0°Lon
Z_max/Location	39.797/ 27.4333°Lat -0.433333°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

Reggane Basin location map

Statistics - Base upper crust
Median	-13.785
Mean	-13.752
Scale	0.161
stdev	0.209
Z_min/Location	-14.289/27.3°Lat -0.3°Lon
Z_max/Location	-13.041/ 27.1667°Lat -2.93333°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

Reggane Basin location map

Statistics - Thermal lithospheric thickness
Median	135.441
Mean	136.656
Scale	14.255
stdev	13.700
Z_min/Location	113.456/28.4333°Lat -2.23333°Lon
Z_max/Location	173.136/ 24.8667°Lat 0.933333°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

Reggane Basin location map

Statistics - Heatflow
Median	52.928
Mean	53.242
Scale	1.380
stdev	1.278
Z_min/Location	51.440/24.5667°Lat -0.0333333°Lon
Z_max/Location	57.324/ 28.4333°Lat -2.23333°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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Topography (ETOPO2)

Reggane Basin location map

Statistics - Topography (ETOPO2)
Median	304.000
Mean	307.173
Scale	19.274
stdev	45.633
Z_min/Location	148.000/26.9°Lat -0.233333°Lon
Z_max/Location	542.000/ 25.6°Lat -2.03333°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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Base hard sediments

Reggane Basin location map

Statistics - Base hard sediments
Median	-0.798
Mean	-0.773
Scale	0.155
stdev	0.187
Z_min/Location	-1.275/27.4333°Lat -0.433333°Lon
Z_max/Location	-0.224/ 27.1667°Lat -2.93333°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

Reggane Basin location map

Statistics - Temperature at 50km depth
Median	700.876
Mean	697.061
Scale	39.152
stdev	39.999
Z_min/Location	593.659/24.8667°Lat 0.933333°Lon
Z_max/Location	771.375/ 28.4333°Lat -2.23333°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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Laske sediment thickness

Reggane Basin location map

Statistics - Laske sediment thickness
Median	1.098
Mean	1.541
Scale	0.458
stdev	0.908
Z_min/Location	0.364/26.8°Lat -2.96667°Lon
Z_max/Location	4.091/ 27.8667°Lat -1.13333°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

Reggane Basin location map

Statistics - Lithospheric temperature gradient
Median	6.917
Mean	7.069
Scale	0.613
stdev	0.602
Z_min/Location	5.831/24.8667°Lat 0.933333°Lon
Z_max/Location	8.348/ 28.4333°Lat -2.23333°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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Computations

Isostatic correction

Reggane Basin location map

Statistics - Isostatic correction
Median	0.464
Mean	0.636
Scale	0.190
stdev	0.356
Z_min/Location	0.157/26.8°Lat -2.96667°Lon
Z_max/Location	1.603/27.8667°Lat -1.13333°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)

Reggane Basin location map

Statistics - TTS (sediment)
Median	0.258
Mean	0.137
Scale	0.309
stdev	0.345
Z_min/Location	-0.646/27.8667°Lat -1.5°Lon
Z_max/Location	0.666/24.9667°Lat -1.66667°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 (Sediment)

Reggane Basin location map

Statistics - Beta (Sediment)
Median	1.034
Mean	1.020
Scale	0.043
stdev	0.045
Z_min/Location	0.924/27.8667°Lat -1.5°Lon
Z_max/Location	1.093/24.9667°Lat -1.66667°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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Crustal vs lithosph. extn.

Reggane Basin location map

Statistics - Crustal vs lithosph. extn.
Median	-0.105
Mean	-0.109
Scale	0.127
stdev	0.114
Z_min/Location	-0.349/28.4333°Lat -2.23333°Lon
Z_max/Location	0.121/25.0333°Lat 0.9°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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Anomalous TTS

Reggane Basin location map

Statistics - Anomalous TTS
Median	0.263
Mean	0.181
Scale	0.241
stdev	0.276
Z_min/Location	-0.464/27.8333°Lat -1.53333°Lon
Z_max/Location	0.623/24.6°Lat -1.2°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

Reggane Basin location map

Statistics - Predicted elevation
Median	1151.570
Mean	1126.120
Scale	244.193
stdev	243.327
Z_min/Location	504.779/25.0°Lat 0.9°Lon
Z_max/Location	1559.520/28.4333°Lat -2.23333°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)

Reggane Basin location map

Statistics - Beta (Crust)
Median	0.998
Mean	0.994
Scale	0.010
stdev	0.010
Z_min/Location	0.967/28.4333°Lat -2.23333°Lon
Z_max/Location	1.011/26.1°Lat 0.766667°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)

Reggane Basin location map

Statistics - TTS (crust)
Median	-0.019
Mean	-0.044
Scale	0.076
stdev	0.080
Z_min/Location	-0.265/28.4333°Lat -2.23333°Lon
Z_max/Location	0.087/26.1°Lat 0.766667°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

Reggane Basin location map

Statistics - Differential Beta
Median	0.035
Mean	0.025
Scale	0.034
stdev	0.036
Z_min/Location	-0.054/27.8°Lat -1.53333°Lon
Z_max/Location	0.087/24.6°Lat -1.2°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