ICONS atlas: SIB - Katanga Saddle

Regional basin list

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Overview

This page bundles the available data for the Katanga Saddle in the Siberian region. 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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Katanga Saddle location map

Basin name	Katanga Saddle
Region code	SIB
Basin ID	4190
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.

Katanga Saddle cross section

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Dynamic topography evolution for basin centroid

Katanga Saddle 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

Katanga Saddle location map

Statistics - Mantle Lid thickness
Median	150.331
Mean	154.931
Scale	28.325
stdev	23.628
Z_min/Location	125.311/60.0°Lat 101.033°Lon
Z_max/Location	222.588/ 59.6°Lat 105.733°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

Katanga Saddle location map

Statistics - Depth of 550 deg isotherm
Median	-49.913
Mean	-52.189
Scale	5.062
stdev	6.289
Z_min/Location	-74.917/59.6°Lat 105.733°Lon
Z_max/Location	-46.000/ 62.0°Lat 103.0°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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Mobil isopachs

Katanga Saddle location map

Statistics - Mobil isopachs
Median	4.063
Mean	4.144
Scale	0.800
stdev	0.751
Z_min/Location	2.596/59.5333°Lat 105.7°Lon
Z_max/Location	6.020/ 59.7°Lat 101.0°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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Plain crustal thickness

Katanga Saddle location map

Statistics - Plain crustal thickness
Median	37.412
Mean	37.199
Scale	0.232
stdev	0.468
Z_min/Location	35.988/59.9°Lat 101.9°Lon
Z_max/Location	38.132/ 61.5667°Lat 107.0°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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Base middle crust

Katanga Saddle location map

Statistics - Base middle crust
Median	-28.031
Mean	-28.274
Scale	0.489
stdev	0.648
Z_min/Location	-30.034/59.7°Lat 101.0°Lon
Z_max/Location	-27.497/ 61.5667°Lat 107.0°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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Base lower crust

Katanga Saddle location map

Statistics - Base lower crust
Median	-40.652
Mean	-40.813
Scale	0.203
stdev	0.392
Z_min/Location	-41.875/59.7°Lat 101.0°Lon
Z_max/Location	-40.011/ 58.8667°Lat 104.833°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

Katanga Saddle location map

Statistics - Total crustal thickness
Median	41.088
Mean	41.220
Scale	0.168
stdev	0.352
Z_min/Location	40.451/58.8667°Lat 104.833°Lon
Z_max/Location	42.180/ 59.7°Lat 101.0°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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Base upper crust

Katanga Saddle location map

Statistics - Base upper crust
Median	-16.011
Mean	-16.151
Scale	0.771
stdev	0.771
Z_min/Location	-18.084/59.7°Lat 101.0°Lon
Z_max/Location	-14.855/ 61.5667°Lat 107.0°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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Thermal lithospheric thickness

Katanga Saddle location map

Statistics - Thermal lithospheric thickness
Median	191.677
Mean	196.151
Scale	28.049
stdev	23.429
Z_min/Location	167.000/61.0°Lat 103.0°Lon
Z_max/Location	263.366/ 59.6°Lat 105.733°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

Katanga Saddle location map

Statistics - Heatflow
Median	44.560
Mean	45.424
Scale	1.892
stdev	2.449
Z_min/Location	42.581/62.0°Lat 103.733°Lon
Z_max/Location	53.663/ 58.1667°Lat 103.8°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)

Katanga Saddle location map

Statistics - Topography (ETOPO2)
Median	392.000
Mean	394.418
Scale	51.891
stdev	62.592
Z_min/Location	198.000/58.8333°Lat 102.767°Lon
Z_max/Location	720.000/ 58.5333°Lat 104.333°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

Katanga Saddle location map

Statistics - Base hard sediments
Median	-3.185
Mean	-3.614
Scale	0.366
stdev	0.848
Z_min/Location	-5.779/59.7333°Lat 101.733°Lon
Z_max/Location	-2.243/ 61.5667°Lat 107.0°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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Temperature at 50km depth

Katanga Saddle location map

Statistics - Temperature at 50km depth
Median	563.646
Mean	557.123
Scale	46.120
stdev	37.415
Z_min/Location	453.616/59.6°Lat 105.733°Lon
Z_max/Location	606.211/ 60.0°Lat 101.033°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

Katanga Saddle location map

Statistics - Laske sediment thickness
Median	3.880
Mean	3.950
Scale	0.604
stdev	0.716
Z_min/Location	2.719/61.5667°Lat 107.0°Lon
Z_max/Location	6.426/ 59.2333°Lat 102.167°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

Katanga Saddle location map

Statistics - Lithospheric temperature gradient
Median	5.184
Mean	5.168
Scale	0.649
stdev	0.497
Z_min/Location	4.024/59.6°Lat 105.733°Lon
Z_max/Location	5.987/ 61.0°Lat 103.0°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

Katanga Saddle location map

Statistics - Isostatic correction
Median	1.528
Mean	1.548
Scale	0.214
stdev	0.247
Z_min/Location	1.104/61.5667°Lat 107.0°Lon
Z_max/Location	2.361/59.2333°Lat 102.167°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)

Katanga Saddle location map

Statistics - TTS (sediment)
Median	1.798
Mean	2.066
Scale	0.366
stdev	0.631
Z_min/Location	1.140/61.5667°Lat 107.0°Lon
Z_max/Location	3.714/60.0333°Lat 101.9°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)

Katanga Saddle location map

Statistics - Beta (Sediment)
Median	1.299
Mean	1.379
Scale	0.077
stdev	0.178
Z_min/Location	1.171/61.5667°Lat 107.0°Lon
Z_max/Location	1.905/60.0333°Lat 101.9°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.

Katanga Saddle location map

Statistics - Crustal vs lithosph. extn.
Median	-0.046
Mean	-0.038
Scale	0.143
stdev	0.112
Z_min/Location	-0.202/61.0°Lat 103.0°Lon
Z_max/Location	0.232/59.6°Lat 105.733°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

Katanga Saddle location map

Statistics - Anomalous TTS
Median	1.807
Mean	2.024
Scale	0.329
stdev	0.535
Z_min/Location	1.293/61.5667°Lat 107.0°Lon
Z_max/Location	3.422/60.0333°Lat 101.867°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

Katanga Saddle location map

Statistics - Predicted elevation
Median	375.195
Mean	278.830
Scale	498.851
stdev	434.049
Z_min/Location	-1027.290/59.6°Lat 105.733°Lon
Z_max/Location	835.559/60.0°Lat 101.033°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)

Katanga Saddle location map

Statistics - Beta (Crust)
Median	1.000
Mean	1.006
Scale	0.006
stdev	0.013
Z_min/Location	0.981/61.5667°Lat 107.0°Lon
Z_max/Location	1.039/59.9°Lat 101.9°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)

Katanga Saddle location map

Statistics - TTS (crust)
Median	-0.002
Mean	0.042
Scale	0.049
stdev	0.098
Z_min/Location	-0.153/61.5667°Lat 107.0°Lon
Z_max/Location	0.295/59.9°Lat 101.9°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

Katanga Saddle location map

Statistics - Differential Beta
Median	0.300
Mean	0.373
Scale	0.072
stdev	0.165
Z_min/Location	0.190/61.5667°Lat 107.0°Lon
Z_max/Location	0.866/60.0333°Lat 101.867°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 02:36:55 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia