ICONS atlas: ARC - Banks Basin

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Overview

This page bundles the available data for the Banks Basin in the NAM Arctic Basins. 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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Banks Basin location map
Basin name Banks Basin
Region code ARC
Basin ID 1536
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.

Banks Basin cross section
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Dynamic topography evolution for basin centroid
Banks 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
Banks Basin location map
Statistics - Mantle Lid thickness
Median 139.909
Mean 140.628
Scale 6.916
stdev 5.287
Z_min/Location 128.583/74.4333°Lat -118.067°Lon
Z_max/Location 148.531/ 72.0°Lat -121.0°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
Banks Basin location map
Statistics - Depth of 550 deg isotherm
Median -47.665
Mean -47.407
Scale 0.457
stdev 0.704
Z_min/Location -48.000/74.0°Lat -121.0°Lon
Z_max/Location -45.185/ 76.2667°Lat -117.0°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
Banks Basin location map
Statistics - Mobil isopachs
Median 0.993
Mean 1.834
Scale 0.476
stdev 1.421
Z_min/Location 0.164/73.3667°Lat -122.6°Lon
Z_max/Location 4.869/ 75.5667°Lat -120.2°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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Plain crustal thickness
Banks Basin location map
Statistics - Plain crustal thickness
Median 31.341
Mean 32.183
Scale 4.504
stdev 3.636
Z_min/Location 27.140/76.1333°Lat -117.167°Lon
Z_max/Location 39.412/ 74.0°Lat -121.6°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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Base middle crust
Banks Basin location map
Statistics - Base middle crust
Median -24.064
Mean -24.124
Scale 3.796
stdev 2.567
Z_min/Location -28.106/74.1°Lat -121.367°Lon
Z_max/Location -20.463/ 71.9667°Lat -119.333°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 lower crust
Banks Basin location map
Statistics - Base lower crust
Median -33.630
Mean -34.213
Scale 5.810
stdev 4.280
Z_min/Location -41.457/74.0667°Lat -121.367°Lon
Z_max/Location -28.268/ 72.0°Lat -119.3°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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Total crustal thickness
Banks Basin location map
Statistics - Total crustal thickness
Median 33.582
Mean 34.223
Scale 5.953
stdev 4.414
Z_min/Location 28.082/72.0°Lat -119.3°Lon
Z_max/Location 41.755/ 74.0333°Lat -121.333°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 upper crust
Banks Basin location map
Statistics - Base upper crust
Median -13.552
Mean -13.073
Scale 2.319
stdev 1.761
Z_min/Location -15.534/74.3°Lat -118.2°Lon
Z_max/Location -10.514/ 71.8333°Lat -121.5°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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Thermal lithospheric thickness
Banks Basin location map
Statistics - Thermal lithospheric thickness
Median 176.104
Mean 174.851
Scale 2.088
stdev 3.443
Z_min/Location 163.794/76.2667°Lat -117.0°Lon
Z_max/Location 178.000/ 73.0°Lat -120.0°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
Banks Basin location map
Statistics - Heatflow
Median 47.737
Mean 48.077
Scale 3.914
stdev 2.947
Z_min/Location 43.277/72.0333°Lat -122.033°Lon
Z_max/Location 55.500/ 75.0333°Lat -122.533°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)
Banks Basin location map
Statistics - Topography (ETOPO2)
Median 94.000
Mean -15.871
Scale 220.907
stdev 264.890
Z_min/Location -545.000/74.9°Lat -121.4°Lon
Z_max/Location 653.000/ 71.1667°Lat -123.0°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 hard sediments
Banks Basin location map
Statistics - Base hard sediments
Median -1.926
Mean -2.028
Scale 1.795
stdev 1.270
Z_min/Location -4.327/75.8667°Lat -117.3°Lon
Z_max/Location -0.050/ 71.0333°Lat -121.167°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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Temperature at 50km depth
Banks Basin location map
Statistics - Temperature at 50km depth
Median 584.944
Mean 587.781
Scale 4.507
stdev 7.671
Z_min/Location 580.000/74.0°Lat -121.0°Lon
Z_max/Location 612.373/ 76.2667°Lat -117.0°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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Laske sediment thickness
Banks Basin location map
Statistics - Laske sediment thickness
Median 2.297
Mean 2.645
Scale 2.078
stdev 1.658
Z_min/Location 0.306/71.0667°Lat -120.867°Lon
Z_max/Location 5.575/ 74.8°Lat -118.567°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
Banks Basin location map
Statistics - Lithospheric temperature gradient
Median 5.686
Mean 5.719
Scale 0.066
stdev 0.099
Z_min/Location 5.618/73.0°Lat -122.0°Lon
Z_max/Location 6.040/ 76.2667°Lat -117.0°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
Banks Basin location map
Statistics - Isostatic correction
Median 0.943
Mean 1.047
Scale 0.825
stdev 0.621
Z_min/Location 0.132/71.0667°Lat -120.867°Lon
Z_max/Location 2.098/74.8°Lat -118.567°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)
Banks Basin location map
Statistics - TTS (sediment)
Median 0.756
Mean 0.981
Scale 0.789
stdev 0.794
Z_min/Location -0.098/71.0333°Lat -122.1°Lon
Z_max/Location 3.000/76.1333°Lat -118.367°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)
Banks Basin location map
Statistics - Beta (Sediment)
Median 1.107
Mean 1.161
Scale 0.118
stdev 0.152
Z_min/Location 0.988/71.0333°Lat -122.1°Lon
Z_max/Location 1.622/76.1333°Lat -118.367°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.
Banks Basin location map
Statistics - Crustal vs lithosph. extn.
Median 0.005
Mean -0.008
Scale 0.140
stdev 0.104
Z_min/Location -0.183/74.0°Lat -121.567°Lon
Z_max/Location 0.145/72.0667°Lat -119.233°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
Banks Basin location map
Statistics - Anomalous TTS
Median 1.607
Mean 1.149
Scale 1.508
stdev 1.246
Z_min/Location -0.740/71.8667°Lat -121.833°Lon
Z_max/Location 3.147/74.1°Lat -118.767°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
Banks Basin location map
Statistics - Predicted elevation
Median 63.866
Mean 56.556
Scale 585.164
stdev 406.120
Z_min/Location -570.048/72.0°Lat -119.3°Lon
Z_max/Location 708.500/74.2333°Lat -118.3°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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Beta (Crust)
Banks Basin location map
Statistics - Beta (Crust)
Median 1.005
Mean 0.991
Scale 0.150
stdev 0.109
Z_min/Location 0.799/74.0°Lat -121.6°Lon
Z_max/Location 1.161/76.1333°Lat -117.167°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 (crust)
Banks Basin location map
Statistics - TTS (crust)
Median 0.040
Mean -0.169
Scale 1.118
stdev 0.902
Z_min/Location -1.963/74.0°Lat -121.6°Lon
Z_max/Location 1.083/76.1333°Lat -117.167°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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Differential Beta
Banks Basin location map
Statistics - Differential Beta
Median 0.232
Mean 0.170
Scale 0.229
stdev 0.185
Z_min/Location -0.108/71.9°Lat -121.833°Lon
Z_max/Location 0.470/76.1°Lat -118.333°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 02:36:51 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia