ICONS atlas: ARC - Norton Basin

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Overview

This page bundles the available data for the Norton 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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Norton Basin location map
Basin name Norton Basin
Region code ARC
Basin ID 1524
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.

Norton Basin cross section
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Dynamic topography evolution for basin centroid
Norton 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
Norton Basin location map
Statistics - Mantle Lid thickness
Median 65.278
Mean 68.275
Scale 1.907
stdev 6.317
Z_min/Location 63.928/63.4°Lat -162.867°Lon
Z_max/Location 96.106/ 64.5667°Lat -169.767°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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Depth of 550 deg isotherm
Norton Basin location map
Statistics - Depth of 550 deg isotherm
Median -32.163
Mean -32.735
Scale 0.240
stdev 1.116
Z_min/Location -37.568/64.5667°Lat -169.767°Lon
Z_max/Location -32.000/ 64.7333°Lat -160.7°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
Norton Basin location map
Statistics - Mobil isopachs
Median 0.990
Mean 1.181
Scale 0.593
stdev 0.604
Z_min/Location 0.169/64.6667°Lat -167.267°Lon
Z_max/Location 2.559/ 63.7333°Lat -166.467°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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Plain crustal thickness
Norton Basin location map
Statistics - Plain crustal thickness
Median 28.349
Mean 28.518
Scale 0.564
stdev 0.580
Z_min/Location 27.895/63.5°Lat -166.433°Lon
Z_max/Location 30.352/ 64.7333°Lat -160.7°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 middle crust
Norton Basin location map
Statistics - Base middle crust
Median -21.486
Mean -21.455
Scale 0.777
stdev 0.524
Z_min/Location -22.258/63.3333°Lat -166.967°Lon
Z_max/Location -20.419/ 64.6667°Lat -160.667°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
Norton Basin location map
Statistics - Base lower crust
Median -30.350
Mean -30.409
Scale 0.763
stdev 0.499
Z_min/Location -31.097/63.3°Lat -163.433°Lon
Z_max/Location -29.238/ 63.9°Lat -169.4°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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Total crustal thickness
Norton Basin location map
Statistics - Total crustal thickness
Median 30.336
Mean 30.420
Scale 0.804
stdev 0.536
Z_min/Location 29.214/63.9°Lat -169.4°Lon
Z_max/Location 31.122/ 63.3333°Lat -163.267°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
Norton Basin location map
Statistics - Base upper crust
Median -11.457
Mean -11.448
Scale 0.763
stdev 0.526
Z_min/Location -12.253/63.3333°Lat -166.967°Lon
Z_max/Location -10.413/ 64.6667°Lat -160.667°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
Norton Basin location map
Statistics - Thermal lithospheric thickness
Median 95.792
Mean 98.768
Scale 1.169
stdev 5.949
Z_min/Location 94.999/64.7333°Lat -160.7°Lon
Z_max/Location 125.827/ 64.5667°Lat -169.767°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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Heatflow
Norton Basin location map
Statistics - Heatflow
Median 83.934
Mean 83.998
Scale 2.137
stdev 1.964
Z_min/Location 80.293/63.1667°Lat -164.133°Lon
Z_max/Location 89.195/ 64.5667°Lat -169.767°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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Topography (ETOPO2)
Norton Basin location map
Statistics - Topography (ETOPO2)
Median -23.000
Mean -24.014
Scale 10.378
stdev 20.893
Z_min/Location -166.000/63.7333°Lat -161.1°Lon
Z_max/Location 245.000/ 64.4333°Lat -160.767°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 hard sediments
Norton Basin location map
Statistics - Base hard sediments
Median -1.994
Mean -1.895
Scale 0.234
stdev 0.361
Z_min/Location -2.530/63.3°Lat -163.433°Lon
Z_max/Location -0.512/ 64.7333°Lat -160.7°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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Temperature at 50km depth
Norton Basin location map
Statistics - Temperature at 50km depth
Median 859.114
Mean 848.640
Scale 4.262
stdev 21.036
Z_min/Location 753.075/64.5667°Lat -169.767°Lon
Z_max/Location 862.002/ 64.7333°Lat -160.7°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
Norton Basin location map
Statistics - Laske sediment thickness
Median 1.519
Mean 1.467
Scale 0.573
stdev 0.511
Z_min/Location 0.312/64.8333°Lat -161.2°Lon
Z_max/Location 2.515/ 63.9333°Lat -165.0°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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Lithospheric temperature gradient
Norton Basin location map
Statistics - Lithospheric temperature gradient
Median 9.669
Mean 9.431
Scale 0.108
stdev 0.451
Z_min/Location 7.761/64.5667°Lat -169.767°Lon
Z_max/Location 9.742/ 64.7333°Lat -160.7°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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Computations

Isostatic correction
Norton Basin location map
Statistics - Isostatic correction
Median 0.636
Mean 0.612
Scale 0.230
stdev 0.207
Z_min/Location 0.135/64.8333°Lat -161.2°Lon
Z_max/Location 1.026/63.9333°Lat -165.0°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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TTS (sediment)
Norton Basin location map
Statistics - TTS (sediment)
Median 1.305
Mean 1.283
Scale 0.246
stdev 0.250
Z_min/Location 0.339/64.7333°Lat -160.7°Lon
Z_max/Location 1.908/63.1333°Lat -164.3°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 (Sediment)
Norton Basin location map
Statistics - Beta (Sediment)
Median 1.200
Mean 1.198
Scale 0.045
stdev 0.045
Z_min/Location 1.045/64.7333°Lat -160.7°Lon
Z_max/Location 1.323/63.1333°Lat -164.3°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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Crustal vs lithosph. extn.
Norton Basin location map
Statistics - Crustal vs lithosph. extn.
Median 0.013
Mean 0.036
Scale 0.050
stdev 0.065
Z_min/Location -0.059/64.7333°Lat -160.7°Lon
Z_max/Location 0.239/64.5°Lat -169.767°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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Anomalous TTS
Norton Basin location map
Statistics - Anomalous TTS
Median 1.273
Mean 1.263
Scale 0.213
stdev 0.207
Z_min/Location 0.673/64.5°Lat -169.767°Lon
Z_max/Location 1.873/63.1667°Lat -164.133°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
Norton Basin location map
Statistics - Predicted elevation
Median 1083.380
Mean 1038.590
Scale 94.192
stdev 126.466
Z_min/Location 547.159/64.5°Lat -169.767°Lon
Z_max/Location 1154.570/63.3333°Lat -163.267°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)
Norton Basin location map
Statistics - Beta (Crust)
Median 1.008
Mean 1.003
Scale 0.020
stdev 0.020
Z_min/Location 0.942/64.7333°Lat -160.7°Lon
Z_max/Location 1.025/63.5°Lat -166.433°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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TTS (crust)
Norton Basin location map
Statistics - TTS (crust)
Median 0.066
Mean 0.020
Scale 0.154
stdev 0.159
Z_min/Location -0.482/64.7333°Lat -160.7°Lon
Z_max/Location 0.190/63.5°Lat -166.433°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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Differential Beta
Norton Basin location map
Statistics - Differential Beta
Median 0.196
Mean 0.195
Scale 0.037
stdev 0.038
Z_min/Location 0.093/64.5667°Lat -169.767°Lon
Z_max/Location 0.318/63.1667°Lat -164.133°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