ICONS atlas: ARC - Foxe Basin

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Overview

This page bundles the available data for the Foxe 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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Foxe Basin location map
Basin name Foxe Basin
Region code ARC
Basin ID 1540
Plate location/code intra-cratonic/INC
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.

Foxe Basin cross section
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Dynamic topography evolution for basin centroid
Foxe 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
Foxe Basin location map
Statistics - Mantle Lid thickness
Median 134.945
Mean 149.546
Scale 5.330
stdev 25.646
Z_min/Location 130.063/66.0333°Lat -74.0°Lon
Z_max/Location 235.352/ 70.7°Lat -81.6333°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
Foxe Basin location map
Statistics - Depth of 550 deg isotherm
Median -46.907
Mean -50.602
Scale 1.317
stdev 6.887
Z_min/Location -78.957/70.7°Lat -81.6333°Lon
Z_max/Location -46.000/ 64.2333°Lat -69.6°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
Foxe Basin location map
Statistics - Mobil isopachs
Median 0.012
Mean 0.014
Scale 0.018
stdev 0.019
Z_min/Location -0.088/70.7333°Lat -81.5667°Lon
Z_max/Location 0.048/ 69.1°Lat -80.4667°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
Foxe Basin location map
Statistics - Plain crustal thickness
Median 37.360
Mean 37.547
Scale 0.775
stdev 0.661
Z_min/Location 36.812/69.0333°Lat -82.3333°Lon
Z_max/Location 38.617/ 65.4°Lat -77.7°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
Foxe Basin location map
Statistics - Base middle crust
Median -25.262
Mean -25.384
Scale 0.491
stdev 0.449
Z_min/Location -26.265/65.5°Lat -79.2°Lon
Z_max/Location -24.705/ 69.3°Lat -82.7333°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
Foxe Basin location map
Statistics - Base lower crust
Median -37.495
Mean -37.747
Scale 1.006
stdev 0.887
Z_min/Location -39.337/65.4°Lat -79.0667°Lon
Z_max/Location -36.584/ 69.1°Lat -82.4333°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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Total crustal thickness
Foxe Basin location map
Statistics - Total crustal thickness
Median 37.479
Mean 37.728
Scale 1.031
stdev 0.882
Z_min/Location 36.750/69.0°Lat -82.1333°Lon
Z_max/Location 39.148/ 65.3333°Lat -78.9333°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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Base upper crust
Foxe Basin location map
Statistics - Base upper crust
Median -13.024
Mean -13.018
Scale 0.055
stdev 0.073
Z_min/Location -13.330/65.4°Lat -79.0667°Lon
Z_max/Location -12.813/ 70.7333°Lat -81.5667°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
Foxe Basin location map
Statistics - Thermal lithospheric thickness
Median 173.211
Mean 187.278
Scale 5.353
stdev 25.131
Z_min/Location 169.000/68.0°Lat -76.0°Lon
Z_max/Location 272.983/ 70.7°Lat -81.6333°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
Foxe Basin location map
Statistics - Heatflow
Median 51.969
Mean 51.571
Scale 1.494
stdev 1.819
Z_min/Location 46.316/65.2667°Lat -78.3°Lon
Z_max/Location 55.460/ 66.4°Lat -70.7667°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)
Foxe Basin location map
Statistics - Topography (ETOPO2)
Median -16.000
Mean -6.977
Scale 32.617
stdev 54.147
Z_min/Location -139.000/70.0°Lat -78.4667°Lon
Z_max/Location 343.000/ 70.5667°Lat -78.6°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 hard sediments
Foxe Basin location map
Statistics - Base hard sediments
Median -0.144
Mean -0.201
Scale 0.232
stdev 0.234
Z_min/Location -0.797/65.4°Lat -79.0667°Lon
Z_max/Location 0.237/ 69.3°Lat -82.7333°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
Foxe Basin location map
Statistics - Temperature at 50km depth
Median 593.265
Mean 571.989
Scale 8.494
stdev 38.350
Z_min/Location 441.095/70.7°Lat -81.6333°Lon
Z_max/Location 600.000/ 68.0°Lat -76.0°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
Foxe Basin location map
Statistics - Laske sediment thickness
Median 0.304
Mean 0.308
Scale 0.247
stdev 0.187
Z_min/Location -0.018/68.6667°Lat -82.2667°Lon
Z_max/Location 0.642/ 68.5333°Lat -78.6333°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
Foxe Basin location map
Statistics - Lithospheric temperature gradient
Median 5.738
Mean 5.435
Scale 0.182
stdev 0.547
Z_min/Location 3.868/70.7°Lat -81.6333°Lon
Z_max/Location 5.891/ 68.0°Lat -76.0°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
Foxe Basin location map
Statistics - Isostatic correction
Median 0.131
Mean 0.133
Scale 0.106
stdev 0.080
Z_min/Location 0.000/69.2°Lat -82.4333°Lon
Z_max/Location 0.275/68.5333°Lat -78.6333°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)
Foxe Basin location map
Statistics - TTS (sediment)
Median -0.015
Mean 0.068
Scale 0.295
stdev 0.284
Z_min/Location -0.282/68.8333°Lat -78.3°Lon
Z_max/Location 0.736/65.5°Lat -79.2°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)
Foxe Basin location map
Statistics - Beta (Sediment)
Median 0.998
Mean 1.010
Scale 0.037
stdev 0.038
Z_min/Location 0.965/68.8333°Lat -78.3°Lon
Z_max/Location 1.104/65.5°Lat -79.2°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.
Foxe Basin location map
Statistics - Crustal vs lithosph. extn.
Median -0.021
Mean 0.045
Scale 0.050
stdev 0.121
Z_min/Location -0.066/66.0333°Lat -74.0°Lon
Z_max/Location 0.356/70.6333°Lat -81.6°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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Anomalous TTS
Foxe Basin location map
Statistics - Anomalous TTS
Median -0.035
Mean 0.086
Scale 0.452
stdev 0.420
Z_min/Location -0.416/68.8667°Lat -78.3°Lon
Z_max/Location 0.962/65.5°Lat -79.2°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
Foxe Basin location map
Statistics - Predicted elevation
Median 440.941
Mean 184.870
Scale 184.136
stdev 495.436
Z_min/Location -1458.520/70.7°Lat -81.6333°Lon
Z_max/Location 599.637/66.0333°Lat -74.0°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)
Foxe Basin location map
Statistics - Beta (Crust)
Median 1.003
Mean 0.998
Scale 0.021
stdev 0.017
Z_min/Location 0.970/65.4°Lat -77.7°Lon
Z_max/Location 1.018/69.0333°Lat -82.3333°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)
Foxe Basin location map
Statistics - TTS (crust)
Median 0.021
Mean -0.018
Scale 0.162
stdev 0.138
Z_min/Location -0.242/65.4°Lat -77.7°Lon
Z_max/Location 0.135/69.0333°Lat -82.3333°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
Foxe Basin location map
Statistics - Differential Beta
Median -0.004
Mean 0.012
Scale 0.057
stdev 0.055
Z_min/Location -0.052/68.8667°Lat -78.3°Lon
Z_max/Location 0.132/65.5°Lat -79.2°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