ICONS atlas: CAS - Volga-Ural Basin

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Overview

This page bundles the available data for the Volga-Ural Basin 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.

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Volga-Ural Basin location map
Basin name Volga-Ural Basin
Region code CAS
Basin ID 3670
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.

Volga-Ural Basin cross section
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Dynamic topography evolution for basin centroid
Volga-Ural 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
Volga-Ural Basin location map
Statistics - Mantle Lid thickness
Median 144.068
Mean 142.923
Scale 30.139
stdev 25.674
Z_min/Location 78.721/47.6333°Lat 43.6°Lon
Z_max/Location 200.000/ 58.0°Lat 56.0°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
Volga-Ural Basin location map
Statistics - Depth of 550 deg isotherm
Median -49.042
Mean -49.747
Scale 6.463
stdev 6.168
Z_min/Location -67.000/58.0°Lat 56.0°Lon
Z_max/Location -36.330/ 51.3667°Lat 50.6°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
Volga-Ural Basin location map
Statistics - Mobil isopachs
Median 2.400
Mean 3.230
Scale 1.198
stdev 2.038
Z_min/Location 0.579/54.9°Lat 42.5667°Lon
Z_max/Location 12.490/ 51.8333°Lat 55.8667°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
Volga-Ural Basin location map
Statistics - Plain crustal thickness
Median 38.792
Mean 37.425
Scale 1.584
stdev 4.233
Z_min/Location 21.047/51.3°Lat 50.1333°Lon
Z_max/Location 45.226/ 54.4333°Lat 41.5°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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Base middle crust
Volga-Ural Basin location map
Statistics - Base middle crust
Median -31.858
Mean -31.343
Scale 0.541
stdev 2.389
Z_min/Location -38.607/57.0°Lat 59.1333°Lon
Z_max/Location -23.466/ 51.7667°Lat 48.4333°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
Volga-Ural Basin location map
Statistics - Base lower crust
Median -40.861
Mean -40.595
Scale 0.531
stdev 2.566
Z_min/Location -46.650/57.0°Lat 43.4333°Lon
Z_max/Location -33.011/ 51.4°Lat 48.6667°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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Total crustal thickness
Volga-Ural Basin location map
Statistics - Total crustal thickness
Median 41.000
Mean 40.735
Scale 0.531
stdev 2.584
Z_min/Location 33.033/51.4°Lat 48.6667°Lon
Z_max/Location 46.797/ 54.6333°Lat 43.3°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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Base upper crust
Volga-Ural Basin location map
Statistics - Base upper crust
Median -17.068
Mean -17.322
Scale 0.534
stdev 0.967
Z_min/Location -22.678/59.7333°Lat 57.8°Lon
Z_max/Location -13.857/ 62.1°Lat 50.0667°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
Volga-Ural Basin location map
Statistics - Thermal lithospheric thickness
Median 185.492
Mean 183.657
Scale 29.726
stdev 26.397
Z_min/Location 117.973/51.3667°Lat 50.6°Lon
Z_max/Location 241.000/ 58.0°Lat 56.0°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
Volga-Ural Basin location map
Statistics - Heatflow
Median 45.696
Mean 45.724
Scale 0.701
stdev 0.956
Z_min/Location 42.601/55.9333°Lat 41.8°Lon
Z_max/Location 49.325/ 52.0667°Lat 51.9333°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)
Volga-Ural Basin location map
Statistics - Topography (ETOPO2)
Median 159.000
Mean 164.470
Scale 59.304
stdev 65.843
Z_min/Location -14.000/48.6°Lat 44.4333°Lon
Z_max/Location 656.000/ 52.5667°Lat 56.2333°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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Base hard sediments
Volga-Ural Basin location map
Statistics - Base hard sediments
Median -2.024
Mean -3.170
Scale 0.644
stdev 2.047
Z_min/Location -12.529/51.3°Lat 50.1333°Lon
Z_max/Location -0.710/ 54.4°Lat 41.4333°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
Volga-Ural Basin location map
Statistics - Temperature at 50km depth
Median 569.745
Mean 578.676
Scale 58.848
stdev 56.412
Z_min/Location 479.000/58.0°Lat 56.0°Lon
Z_max/Location 772.358/ 51.3667°Lat 50.6°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
Volga-Ural Basin location map
Statistics - Laske sediment thickness
Median 2.167
Mean 2.996
Scale 0.913
stdev 1.936
Z_min/Location 0.597/50.4667°Lat 42.5333°Lon
Z_max/Location 10.221/ 52.4333°Lat 55.9667°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
Volga-Ural Basin location map
Statistics - Lithospheric temperature gradient
Median 5.439
Mean 5.580
Scale 0.703
stdev 0.732
Z_min/Location 4.327/58.0°Lat 56.0°Lon
Z_max/Location 7.832/ 51.3667°Lat 50.6°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
Volga-Ural Basin location map
Statistics - Isostatic correction
Median 0.892
Mean 1.169
Scale 0.359
stdev 0.662
Z_min/Location 0.255/50.4667°Lat 42.5333°Lon
Z_max/Location 3.352/52.4333°Lat 55.9667°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)
Volga-Ural Basin location map
Statistics - TTS (sediment)
Median 1.288
Mean 2.001
Scale 0.585
stdev 1.524
Z_min/Location -0.158/54.7667°Lat 41.1333°Lon
Z_max/Location 9.442/51.3°Lat 50.1333°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)
Volga-Ural Basin location map
Statistics - Beta (Sediment)
Median 1.196
Mean 1.482
Scale 0.103
stdev 58.098
Z_min/Location -14513.200/51.2667°Lat 55.0°Lon
Z_max/Location 5821.380/51.6°Lat 49.6667°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.
Volga-Ural Basin location map
Statistics - Crustal vs lithosph. extn.
Median -0.040
Mean -0.050
Scale 0.174
stdev 0.175
Z_min/Location -0.655/47.6333°Lat 43.6°Lon
Z_max/Location 0.293/51.4667°Lat 54.1667°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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Anomalous TTS
Volga-Ural Basin location map
Statistics - Anomalous TTS
Median 1.670
Mean 1.975
Scale 0.556
stdev 0.815
Z_min/Location 0.277/62.1°Lat 50.0667°Lon
Z_max/Location 6.005/51.3°Lat 50.1333°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
Volga-Ural Basin location map
Statistics - Predicted elevation
Median 452.836
Mean 442.488
Scale 520.742
stdev 441.027
Z_min/Location -587.498/58.0°Lat 56.0°Lon
Z_max/Location 1603.050/47.6333°Lat 43.6°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)
Volga-Ural Basin location map
Statistics - Beta (Crust)
Median 0.968
Mean 1.019
Scale 0.039
stdev 0.141
Z_min/Location 0.830/54.4333°Lat 41.5°Lon
Z_max/Location 1.784/51.3°Lat 50.1333°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)
Volga-Ural Basin location map
Statistics - TTS (crust)
Median -0.259
Mean 0.026
Scale 0.330
stdev 0.881
Z_min/Location -1.599/54.4333°Lat 41.5°Lon
Z_max/Location 3.437/51.3°Lat 50.1333°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
Volga-Ural Basin location map
Statistics - Differential Beta
Median 0.246
Mean 0.463
Scale 0.102
stdev 58.097
Z_min/Location -14514.700/51.2667°Lat 55.0°Lon
Z_max/Location 5819.780/51.6°Lat 49.6667°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