ICONS atlas: NAM - Quebec Basin

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Overview

This page bundles the available data for the Quebec Basin in the North America. 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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Quebec Basin location map
Basin name Quebec Basin
Region code NAM
Basin ID 1034
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.

Quebec Basin cross section
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Dynamic topography evolution for basin centroid
Quebec 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
Quebec Basin location map
Statistics - Mantle Lid thickness
Median 106.171
Mean 111.986
Scale 12.964
stdev 13.489
Z_min/Location 92.308/45.0°Lat -73.0667°Lon
Z_max/Location 138.286/ 45.4333°Lat -76.4°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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Depth of 550 deg isotherm
Quebec Basin location map
Statistics - Depth of 550 deg isotherm
Median -41.942
Mean -43.055
Scale 2.513
stdev 2.673
Z_min/Location -48.501/45.4333°Lat -76.4°Lon
Z_max/Location -39.240/ 45.0°Lat -73.0667°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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Mobil isopachs
Quebec Basin location map
Statistics - Mobil isopachs
Median 0.864
Mean 0.864
Scale 0.562
stdev 0.466
Z_min/Location -0.045/44.4667°Lat -75.7°Lon
Z_max/Location 2.389/ 45.8667°Lat -72.5333°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
Quebec Basin location map
Statistics - Plain crustal thickness
Median 38.966
Mean 39.780
Scale 1.206
stdev 1.725
Z_min/Location 37.999/45.8667°Lat -73.3333°Lon
Z_max/Location 44.355/ 45.5333°Lat -76.1667°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
Quebec Basin location map
Statistics - Base middle crust
Median -31.098
Mean -30.940
Scale 0.677
stdev 0.660
Z_min/Location -31.864/45.0°Lat -73.0667°Lon
Z_max/Location -28.870/ 47.1667°Lat -70.7°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
Quebec Basin location map
Statistics - Base lower crust
Median -39.065
Mean -40.079
Scale 1.029
stdev 1.891
Z_min/Location -44.822/45.5333°Lat -76.1667°Lon
Z_max/Location -38.275/ 45.8333°Lat -73.3333°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
Quebec Basin location map
Statistics - Total crustal thickness
Median 39.336
Mean 40.334
Scale 1.069
stdev 1.870
Z_min/Location 38.507/45.8667°Lat -73.3333°Lon
Z_max/Location 45.017/ 45.5333°Lat -76.1667°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
Quebec Basin location map
Statistics - Base upper crust
Median -18.587
Mean -18.102
Scale 1.928
stdev 1.794
Z_min/Location -20.219/45.0667°Lat -73.1333°Lon
Z_max/Location -14.730/ 44.6667°Lat -76.1°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
Quebec Basin location map
Statistics - Thermal lithospheric thickness
Median 145.449
Mean 152.320
Scale 13.921
stdev 15.306
Z_min/Location 131.244/45.0°Lat -73.0667°Lon
Z_max/Location 183.162/ 45.4333°Lat -76.4°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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Heatflow
Quebec Basin location map
Statistics - Heatflow
Median 54.936
Mean 54.880
Scale 1.380
stdev 1.417
Z_min/Location 51.667/45.5333°Lat -76.1667°Lon
Z_max/Location 58.123/ 44.9333°Lat -73.1333°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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Topography (ETOPO2)
Quebec Basin location map
Statistics - Topography (ETOPO2)
Median 66.000
Mean 74.141
Scale 42.995
stdev 60.907
Z_min/Location -36.000/47.1°Lat -70.7333°Lon
Z_max/Location 623.000/ 44.8°Lat -73.8333°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
Quebec Basin location map
Statistics - Base hard sediments
Median -0.259
Mean -0.300
Scale 0.168
stdev 0.207
Z_min/Location -0.874/44.4667°Lat -75.7°Lon
Z_max/Location 0.201/ 47.1667°Lat -70.7°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
Quebec Basin location map
Statistics - Temperature at 50km depth
Median 665.114
Mean 647.461
Scale 38.503
stdev 39.830
Z_min/Location 571.592/45.4333°Lat -76.4°Lon
Z_max/Location 705.308/ 45.0°Lat -73.0667°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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Laske sediment thickness
Quebec Basin location map
Statistics - Laske sediment thickness
Median 0.130
Mean 0.182
Scale 0.141
stdev 0.169
Z_min/Location -0.059/45.4°Lat -76.3667°Lon
Z_max/Location 0.603/ 46.0°Lat -73.0667°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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Lithospheric temperature gradient
Quebec Basin location map
Statistics - Lithospheric temperature gradient
Median 6.573
Mean 6.426
Scale 0.516
stdev 0.469
Z_min/Location 5.515/45.4333°Lat -76.4°Lon
Z_max/Location 7.202/ 45.0°Lat -73.0667°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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Computations

Isostatic correction
Quebec Basin location map
Statistics - Isostatic correction
Median 0.056
Mean 0.079
Scale 0.061
stdev 0.071
Z_min/Location 0.000/47.1667°Lat -70.7°Lon
Z_max/Location 0.258/46.0°Lat -73.0667°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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TTS (sediment)
Quebec Basin location map
Statistics - TTS (sediment)
Median 0.113
Mean 0.220
Scale 0.128
stdev 0.228
Z_min/Location -0.201/47.1667°Lat -70.7°Lon
Z_max/Location 0.791/44.4667°Lat -75.7°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 (Sediment)
Quebec Basin location map
Statistics - Beta (Sediment)
Median 1.015
Mean 1.030
Scale 0.017
stdev 0.032
Z_min/Location 0.975/47.1667°Lat -70.7°Lon
Z_max/Location 1.113/44.4667°Lat -75.7°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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Crustal vs lithosph. extn.
Quebec Basin location map
Statistics - Crustal vs lithosph. extn.
Median 0.003
Mean 0.016
Scale 0.068
stdev 0.055
Z_min/Location -0.099/45.0°Lat -73.0667°Lon
Z_max/Location 0.123/44.6667°Lat -76.3°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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Anomalous TTS
Quebec Basin location map
Statistics - Anomalous TTS
Median -0.008
Mean 0.329
Scale 0.243
stdev 0.556
Z_min/Location -0.217/46.0333°Lat -73.1667°Lon
Z_max/Location 1.487/45.5333°Lat -76.1667°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
Quebec Basin location map
Statistics - Predicted elevation
Median 1036.670
Mean 981.747
Scale 161.780
stdev 154.742
Z_min/Location 648.595/44.7°Lat -76.3333°Lon
Z_max/Location 1249.310/45.0°Lat -73.0667°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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Beta (Crust)
Quebec Basin location map
Statistics - Beta (Crust)
Median 1.007
Mean 0.988
Scale 0.032
stdev 0.041
Z_min/Location 0.885/45.5333°Lat -76.1667°Lon
Z_max/Location 1.033/45.8667°Lat -73.3333°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)
Quebec Basin location map
Statistics - TTS (crust)
Median 0.054
Mean -0.109
Scale 0.240
stdev 0.344
Z_min/Location -1.020/45.5333°Lat -76.1667°Lon
Z_max/Location 0.246/45.8667°Lat -73.3333°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
Quebec Basin location map
Statistics - Differential Beta
Median -0.001
Mean 0.042
Scale 0.032
stdev 0.071
Z_min/Location -0.029/46.0333°Lat -73.1667°Lon
Z_max/Location 0.179/45.4667°Lat -76.1667°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 02:36:48 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia