ICONS atlas: CAS - East Kara Bogaz Trough

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Overview

This page bundles the available data for the East Kara Bogaz Trough in the Greater Caspian 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.

Select data to display:

East Kara Bogaz Trough location map
Basin name East Kara Bogaz Trough
Region code CAS
Basin ID 3910
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.

East Kara Bogaz Trough cross section
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Dynamic topography evolution for basin centroid
East Kara Bogaz Trough 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
East Kara Bogaz Trough location map
Statistics - Mantle Lid thickness
Median 51.239
Mean 51.084
Scale 0.316
stdev 0.396
Z_min/Location 50.217/39.8667°Lat 55.9°Lon
Z_max/Location 51.645/ 41.0°Lat 54.6333°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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Depth of 550 deg isotherm
East Kara Bogaz Trough location map
Statistics - Depth of 550 deg isotherm
Median -31.662
Mean -31.649
Scale 0.124
stdev 0.130
Z_min/Location -31.968/41.0333°Lat 54.9667°Lon
Z_max/Location -31.329/ 40.0°Lat 55.3°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
East Kara Bogaz Trough location map
Statistics - Mobil isopachs
Median 0.864
Mean 1.028
Scale 0.911
stdev 0.910
Z_min/Location -0.255/40.5°Lat 55.1333°Lon
Z_max/Location 3.358/ 39.6°Lat 56.3°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
East Kara Bogaz Trough location map
Statistics - Plain crustal thickness
Median 33.730
Mean 33.725
Scale 1.555
stdev 1.291
Z_min/Location 31.207/40.0°Lat 55.3°Lon
Z_max/Location 36.513/ 41.5°Lat 54.3333°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
East Kara Bogaz Trough location map
Statistics - Base middle crust
Median -30.324
Mean -30.397
Scale 0.412
stdev 0.431
Z_min/Location -31.386/39.8333°Lat 55.9667°Lon
Z_max/Location -29.598/ 41.0°Lat 54.6333°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
East Kara Bogaz Trough location map
Statistics - Base lower crust
Median -39.740
Mean -39.778
Scale 0.299
stdev 0.304
Z_min/Location -40.484/39.8°Lat 56.0333°Lon
Z_max/Location -39.201/ 41.0°Lat 54.6333°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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Total crustal thickness
East Kara Bogaz Trough location map
Statistics - Total crustal thickness
Median 39.778
Mean 39.850
Scale 0.316
stdev 0.370
Z_min/Location 39.202/41.0°Lat 54.6333°Lon
Z_max/Location 40.713/ 39.7667°Lat 56.1°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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Base upper crust
East Kara Bogaz Trough location map
Statistics - Base upper crust
Median -17.136
Mean -17.329
Scale 1.043
stdev 0.802
Z_min/Location -18.614/39.8667°Lat 55.9°Lon
Z_max/Location -16.297/ 41.2333°Lat 54.3333°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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Thermal lithospheric thickness
East Kara Bogaz Trough location map
Statistics - Thermal lithospheric thickness
Median 90.929
Mean 90.934
Scale 0.170
stdev 0.172
Z_min/Location 90.509/40.0°Lat 55.3°Lon
Z_max/Location 91.339/ 39.6667°Lat 56.3333°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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Heatflow
East Kara Bogaz Trough location map
Statistics - Heatflow
Median 58.991
Mean 59.221
Scale 0.410
stdev 0.508
Z_min/Location 58.623/41.5°Lat 54.1°Lon
Z_max/Location 60.288/ 39.6333°Lat 56.2°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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Topography (ETOPO2)
East Kara Bogaz Trough location map
Statistics - Topography (ETOPO2)
Median 42.000
Mean 79.724
Scale 85.991
stdev 104.975
Z_min/Location -27.000/41.2667°Lat 54.4°Lon
Z_max/Location 415.000/ 40.3667°Lat 55.2°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 hard sediments
East Kara Bogaz Trough location map
Statistics - Base hard sediments
Median -6.073
Mean -6.053
Scale 1.494
stdev 1.202
Z_min/Location -8.155/40.0°Lat 55.3°Lon
Z_max/Location -3.569/ 41.5°Lat 54.3333°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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Temperature at 50km depth
East Kara Bogaz Trough location map
Statistics - Temperature at 50km depth
Median 885.759
Mean 885.660
Scale 0.684
stdev 0.764
Z_min/Location 882.825/39.6667°Lat 56.3333°Lon
Z_max/Location 887.446/ 40.0°Lat 55.3°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
East Kara Bogaz Trough location map
Statistics - Laske sediment thickness
Median 2.334
Mean 2.785
Scale 2.133
stdev 1.728
Z_min/Location 0.795/41.4°Lat 54.1667°Lon
Z_max/Location 5.859/ 40.0°Lat 55.3°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
East Kara Bogaz Trough location map
Statistics - Lithospheric temperature gradient
Median 10.051
Mean 10.050
Scale 0.038
stdev 0.033
Z_min/Location 9.978/41.2°Lat 54.8°Lon
Z_max/Location 10.131/ 40.0°Lat 55.3°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
East Kara Bogaz Trough location map
Statistics - Isostatic correction
Median 0.957
Mean 1.098
Scale 0.844
stdev 0.642
Z_min/Location 0.339/41.4°Lat 54.1667°Lon
Z_max/Location 2.187/40.0°Lat 55.3°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)
East Kara Bogaz Trough location map
Statistics - TTS (sediment)
Median 5.031
Mean 4.955
Scale 0.901
stdev 0.747
Z_min/Location 3.195/41.5°Lat 54.3333°Lon
Z_max/Location 6.149/40.2667°Lat 55.2°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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Beta (Sediment)
East Kara Bogaz Trough location map
Statistics - Beta (Sediment)
Median 2.804
Mean 2.924
Scale 0.900
stdev 0.768
Z_min/Location 1.691/41.5°Lat 54.3333°Lon
Z_max/Location 4.679/40.2667°Lat 55.2°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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Crustal vs lithosph. extn.
East Kara Bogaz Trough location map
Statistics - Crustal vs lithosph. extn.
Median 0.009
Mean 0.011
Scale 0.045
stdev 0.038
Z_min/Location -0.065/41.5°Lat 54.3333°Lon
Z_max/Location 0.087/40.1667°Lat 55.2333°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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Anomalous TTS
East Kara Bogaz Trough location map
Statistics - Anomalous TTS
Median 4.932
Mean 4.878
Scale 0.570
stdev 0.474
Z_min/Location 3.758/41.5°Lat 54.3333°Lon
Z_max/Location 5.569/40.3667°Lat 55.1667°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
East Kara Bogaz Trough location map
Statistics - Predicted elevation
Median 1911.610
Mean 1916.090
Scale 17.795
stdev 21.242
Z_min/Location 1878.460/41.0°Lat 54.6333°Lon
Z_max/Location 1964.140/39.8°Lat 56.0333°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 (Crust)
East Kara Bogaz Trough location map
Statistics - Beta (Crust)
Median 1.010
Mean 1.011
Scale 0.045
stdev 0.039
Z_min/Location 0.933/41.5°Lat 54.3333°Lon
Z_max/Location 1.091/40.0°Lat 55.3°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)
East Kara Bogaz Trough location map
Statistics - TTS (crust)
Median 0.076
Mean 0.077
Scale 0.357
stdev 0.296
Z_min/Location -0.563/41.5°Lat 54.3333°Lon
Z_max/Location 0.655/40.0°Lat 55.3°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
East Kara Bogaz Trough location map
Statistics - Differential Beta
Median 1.796
Mean 1.912
Scale 0.852
stdev 0.732
Z_min/Location 0.758/41.5°Lat 54.3333°Lon
Z_max/Location 3.593/40.2667°Lat 55.2°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 02:36:42 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia