ICONS atlas: SIB - Arctic Institut Trough

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Overview

This page bundles the available data for the Arctic Institut Trough 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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Arctic Institut Trough location map
Basin name Arctic Institut Trough
Region code SIB
Basin ID 4230
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.

Arctic Institut Trough cross section
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Dynamic topography evolution for basin centroid
Arctic Institut 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
Arctic Institut Trough location map
Statistics - Mantle Lid thickness
Median 84.298
Mean 84.551
Scale 1.572
stdev 1.370
Z_min/Location 82.186/74.6°Lat 82.7°Lon
Z_max/Location 87.571/ 74.8333°Lat 84.0667°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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Depth of 550 deg isotherm
Arctic Institut Trough location map
Statistics - Depth of 550 deg isotherm
Median -37.511
Mean -37.527
Scale 0.113
stdev 0.103
Z_min/Location -37.767/74.8333°Lat 84.0667°Lon
Z_max/Location -37.333/ 74.6°Lat 82.7°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
Arctic Institut Trough location map
Statistics - Mobil isopachs
Median 4.480
Mean 4.824
Scale 1.027
stdev 1.124
Z_min/Location 2.736/74.4667°Lat 84.3°Lon
Z_max/Location 8.124/ 75.6°Lat 82.8°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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Plain crustal thickness
Arctic Institut Trough location map
Statistics - Plain crustal thickness
Median 24.775
Mean 26.464
Scale 1.977
stdev 3.856
Z_min/Location 23.163/76.1667°Lat 74.6667°Lon
Z_max/Location 38.904/ 74.4667°Lat 84.3°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 middle crust
Arctic Institut Trough location map
Statistics - Base middle crust
Median -23.289
Mean -24.015
Scale 0.515
stdev 1.593
Z_min/Location -29.911/74.6°Lat 82.7°Lon
Z_max/Location -22.742/ 76.4667°Lat 74.7°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
Arctic Institut Trough location map
Statistics - Base lower crust
Median -31.898
Mean -32.485
Scale 1.202
stdev 1.810
Z_min/Location -38.606/74.4667°Lat 84.3°Lon
Z_max/Location -30.541/ 76.4667°Lat 74.6667°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
Arctic Institut Trough location map
Statistics - Total crustal thickness
Median 31.875
Mean 32.460
Scale 1.220
stdev 1.828
Z_min/Location 30.459/76.4667°Lat 74.6667°Lon
Z_max/Location 38.691/ 74.4667°Lat 84.3°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
Arctic Institut Trough location map
Statistics - Base upper crust
Median -14.970
Mean -14.880
Scale 0.529
stdev 0.688
Z_min/Location -16.731/75.9°Lat 71.4°Lon
Z_max/Location -12.752/ 75.6°Lat 82.9667°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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Thermal lithospheric thickness
Arctic Institut Trough location map
Statistics - Thermal lithospheric thickness
Median 122.137
Mean 122.206
Scale 0.676
stdev 0.651
Z_min/Location 120.791/74.6°Lat 82.7°Lon
Z_max/Location 123.694/ 74.8333°Lat 84.0667°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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Heatflow
Arctic Institut Trough location map
Statistics - Heatflow
Median 56.133
Mean 56.725
Scale 2.434
stdev 2.458
Z_min/Location 53.034/76.1667°Lat 69.8°Lon
Z_max/Location 63.607/ 75.3°Lat 74.3°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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Topography (ETOPO2)
Arctic Institut Trough location map
Statistics - Topography (ETOPO2)
Median -44.000
Mean -56.816
Scale 16.309
stdev 37.242
Z_min/Location -277.000/76.0667°Lat 70.6°Lon
Z_max/Location 25.000/ 74.4667°Lat 84.3°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 hard sediments
Arctic Institut Trough location map
Statistics - Base hard sediments
Median -7.373
Mean -6.021
Scale 0.460
stdev 2.302
Z_min/Location -7.799/75.4°Lat 72.5°Lon
Z_max/Location 0.329/ 74.6°Lat 84.1333°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
Arctic Institut Trough location map
Statistics - Temperature at 50km depth
Median 747.549
Mean 747.348
Scale 2.154
stdev 1.941
Z_min/Location 742.934/74.8333°Lat 84.0667°Lon
Z_max/Location 751.560/ 74.6°Lat 82.7°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
Arctic Institut Trough location map
Statistics - Laske sediment thickness
Median 7.710
Mean 6.573
Scale 0.761
stdev 2.327
Z_min/Location -0.027/74.4667°Lat 84.3°Lon
Z_max/Location 8.689/ 75.3°Lat 77.0333°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
Arctic Institut Trough location map
Statistics - Lithospheric temperature gradient
Median 7.646
Mean 7.646
Scale 0.016
stdev 0.017
Z_min/Location 7.615/74.8333°Lat 84.0667°Lon
Z_max/Location 7.697/ 74.4667°Lat 84.3°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
Arctic Institut Trough location map
Statistics - Isostatic correction
Median 2.730
Mean 2.349
Scale 0.206
stdev 0.775
Z_min/Location 0.000/74.5°Lat 84.2333°Lon
Z_max/Location 2.988/75.3°Lat 77.0333°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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TTS (sediment)
Arctic Institut Trough location map
Statistics - TTS (sediment)
Median 4.597
Mean 3.672
Scale 0.459
stdev 1.553
Z_min/Location -0.383/74.8333°Lat 84.0667°Lon
Z_max/Location 5.078/76.0°Lat 70.9333°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)
Arctic Institut Trough location map
Statistics - Beta (Sediment)
Median 2.426
Mean 2.103
Scale 0.369
stdev 0.596
Z_min/Location 0.953/74.8333°Lat 84.0667°Lon
Z_max/Location 2.852/76.0°Lat 70.9333°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.
Arctic Institut Trough location map
Statistics - Crustal vs lithosph. extn.
Median -0.270
Mean -0.263
Scale 0.017
stdev 0.018
Z_min/Location -0.293/74.4667°Lat 84.3°Lon
Z_max/Location -0.224/74.8333°Lat 84.0667°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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Anomalous TTS
Arctic Institut Trough location map
Statistics - Anomalous TTS
Median 3.453
Mean 3.299
Scale 0.526
stdev 0.670
Z_min/Location 1.229/75.6°Lat 82.9667°Lon
Z_max/Location 5.072/75.9667°Lat 71.1°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
Arctic Institut Trough location map
Statistics - Predicted elevation
Median 1335.050
Mean 1318.490
Scale 68.008
stdev 64.267
Z_min/Location 1178.550/74.8333°Lat 84.0667°Lon
Z_max/Location 1408.550/74.6°Lat 82.7°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)
Arctic Institut Trough location map
Statistics - Beta (Crust)
Median 1.122
Mean 1.069
Scale 0.094
stdev 0.131
Z_min/Location 0.714/74.4667°Lat 84.3°Lon
Z_max/Location 1.200/76.1667°Lat 74.6667°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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TTS (crust)
Arctic Institut Trough location map
Statistics - TTS (crust)
Median 0.848
Mean 0.373
Scale 0.556
stdev 1.085
Z_min/Location -3.128/74.4667°Lat 84.3°Lon
Z_max/Location 1.302/76.1667°Lat 74.6667°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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Differential Beta
Arctic Institut Trough location map
Statistics - Differential Beta
Median 1.256
Mean 1.034
Scale 0.390
stdev 0.486
Z_min/Location 0.156/75.6°Lat 82.9667°Lon
Z_max/Location 1.850/76.0°Lat 70.9333°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