ICONS atlas: ARC - Northern Interior Platform

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Overview

This page bundles the available data for the Northern Interior Platform 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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Northern Interior Platform location map
Basin name Northern Interior Platform
Region code ARC
Basin ID 1517
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.

Northern Interior Platform cross section
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Dynamic topography evolution for basin centroid
Northern Interior Platform 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
Northern Interior Platform location map
Statistics - Mantle Lid thickness
Median 125.292
Mean 118.066
Scale 11.852
stdev 21.169
Z_min/Location 58.362/67.5667°Lat -135.633°Lon
Z_max/Location 143.650/ 71.5°Lat -124.867°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
Northern Interior Platform location map
Statistics - Depth of 550 deg isotherm
Median -45.553
Mean -43.602
Scale 0.700
stdev 3.939
Z_min/Location -46.958/71.5°Lat -124.867°Lon
Z_max/Location -32.000/ 67.0°Lat -135.0°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
Northern Interior Platform location map
Statistics - Mobil isopachs
Median 1.311
Mean 2.104
Scale 0.693
stdev 1.519
Z_min/Location 0.165/63.1333°Lat -120.867°Lon
Z_max/Location 5.301/ 66.9333°Lat -133.133°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
Northern Interior Platform location map
Statistics - Plain crustal thickness
Median 35.294
Mean 35.299
Scale 4.829
stdev 3.777
Z_min/Location 28.640/71.2°Lat -126.533°Lon
Z_max/Location 44.817/ 65.9667°Lat -126.767°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
Northern Interior Platform location map
Statistics - Base middle crust
Median -25.943
Mean -26.909
Scale 3.946
stdev 4.656
Z_min/Location -42.876/65.9667°Lat -126.767°Lon
Z_max/Location -20.468/ 69.4333°Lat -126.4°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
Northern Interior Platform location map
Statistics - Base lower crust
Median -36.298
Mean -36.720
Scale 3.408
stdev 3.404
Z_min/Location -46.066/65.9667°Lat -126.767°Lon
Z_max/Location -30.174/ 71.3333°Lat -125.9°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
Northern Interior Platform location map
Statistics - Total crustal thickness
Median 37.095
Mean 37.226
Scale 3.662
stdev 3.565
Z_min/Location 30.105/71.3333°Lat -125.9°Lon
Z_max/Location 46.803/ 65.9667°Lat -126.767°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
Northern Interior Platform location map
Statistics - Base upper crust
Median -13.913
Mean -14.378
Scale 2.371
stdev 2.589
Z_min/Location -22.099/65.9667°Lat -126.767°Lon
Z_max/Location -10.478/ 69.3667°Lat -126.533°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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Thermal lithospheric thickness
Northern Interior Platform location map
Statistics - Thermal lithospheric thickness
Median 165.124
Mean 155.292
Scale 4.469
stdev 20.495
Z_min/Location 95.000/67.0°Lat -135.0°Lon
Z_max/Location 173.958/ 71.5°Lat -124.867°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
Northern Interior Platform location map
Statistics - Heatflow
Median 54.724
Mean 54.775
Scale 1.412
stdev 3.922
Z_min/Location 44.912/71.4°Lat -125.567°Lon
Z_max/Location 75.669/ 69.7667°Lat -130.133°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)
Northern Interior Platform location map
Statistics - Topography (ETOPO2)
Median 184.000
Mean 176.600
Scale 137.882
stdev 180.173
Z_min/Location -434.000/71.2667°Lat -126.267°Lon
Z_max/Location 1033.000/ 65.5667°Lat -133.9°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
Northern Interior Platform location map
Statistics - Base hard sediments
Median -1.451
Mean -1.421
Scale 0.867
stdev 0.999
Z_min/Location -3.761/68.3°Lat -133.467°Lon
Z_max/Location 1.083/ 65.6°Lat -132.467°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
Northern Interior Platform location map
Statistics - Temperature at 50km depth
Median 610.251
Mean 644.145
Scale 12.085
stdev 70.802
Z_min/Location 590.231/71.5°Lat -124.867°Lon
Z_max/Location 862.000/ 67.0°Lat -135.0°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
Northern Interior Platform location map
Statistics - Laske sediment thickness
Median 1.914
Mean 2.150
Scale 0.900
stdev 1.027
Z_min/Location -0.345/65.6667°Lat -134.0°Lon
Z_max/Location 5.132/ 67.1°Lat -133.733°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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Lithospheric temperature gradient
Northern Interior Platform location map
Statistics - Lithospheric temperature gradient
Median 6.043
Mean 6.452
Scale 0.208
stdev 0.908
Z_min/Location 5.745/71.5°Lat -124.867°Lon
Z_max/Location 9.742/ 67.0°Lat -135.0°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
Northern Interior Platform location map
Statistics - Isostatic correction
Median 0.793
Mean 0.875
Scale 0.356
stdev 0.392
Z_min/Location 0.000/66.0333°Lat -134.2°Lon
Z_max/Location 1.955/67.1°Lat -133.733°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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TTS (sediment)
Northern Interior Platform location map
Statistics - TTS (sediment)
Median 0.519
Mean 0.546
Scale 0.871
stdev 1.005
Z_min/Location -1.938/65.9667°Lat -132.567°Lon
Z_max/Location 3.060/68.6333°Lat -132.433°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)
Northern Interior Platform location map
Statistics - Beta (Sediment)
Median 1.071
Mean 1.097
Scale 0.129
stdev 0.159
Z_min/Location 0.801/65.9667°Lat -132.567°Lon
Z_max/Location 1.643/68.6333°Lat -132.433°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.
Northern Interior Platform location map
Statistics - Crustal vs lithosph. extn.
Median 0.040
Mean 0.038
Scale 0.236
stdev 0.232
Z_min/Location -0.619/67.5333°Lat -135.633°Lon
Z_max/Location 0.393/71.2333°Lat -126.4°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
Northern Interior Platform location map
Statistics - Anomalous TTS
Median 0.061
Mean -0.007
Scale 1.004
stdev 0.889
Z_min/Location -1.787/66.1667°Lat -132.5°Lon
Z_max/Location 1.686/66.2667°Lat -125.767°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
Northern Interior Platform location map
Statistics - Predicted elevation
Median 693.501
Mean 678.541
Scale 528.757
stdev 478.250
Z_min/Location -287.326/71.5°Lat -125.0°Lon
Z_max/Location 1742.200/66.0°Lat -134.0°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)
Northern Interior Platform location map
Statistics - Beta (Crust)
Median 1.076
Mean 1.088
Scale 0.145
stdev 0.115
Z_min/Location 0.847/65.9667°Lat -126.767°Lon
Z_max/Location 1.326/71.2°Lat -126.533°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)
Northern Interior Platform location map
Statistics - TTS (crust)
Median 0.554
Mean 0.552
Scale 0.994
stdev 0.778
Z_min/Location -1.407/65.9667°Lat -126.767°Lon
Z_max/Location 1.923/71.2°Lat -126.533°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
Northern Interior Platform location map
Statistics - Differential Beta
Median 0.009
Mean 0.008
Scale 0.153
stdev 0.135
Z_min/Location -0.253/70.4667°Lat -125.933°Lon
Z_max/Location 0.419/68.6667°Lat -132.4°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