ICONS atlas: NAM - Anticosti Basin

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Overview

This page bundles the available data for the Anticosti 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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Anticosti Basin location map

Basin name	Anticosti Basin
Region code	NAM
Basin ID	1032
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.

Anticosti Basin cross section

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Dynamic topography evolution for basin centroid

Anticosti 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

Anticosti Basin location map

Statistics - Mantle Lid thickness
Median	73.644
Mean	78.079
Scale	4.202
stdev	12.412
Z_min/Location	67.519/48.2333°Lat -61.1°Lon
Z_max/Location	115.414/ 50.0333°Lat -66.0667°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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Depth of 550 deg isotherm

Anticosti Basin location map

Statistics - Depth of 550 deg isotherm
Median	-36.037
Mean	-37.184
Scale	0.069
stdev	2.215
Z_min/Location	-44.113/50.0333°Lat -66.1°Lon
Z_max/Location	-35.987/ 48.8°Lat -60.2°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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Mobil isopachs

Anticosti Basin location map

Statistics - Mobil isopachs
Median	0.710
Mean	1.016
Scale	0.625
stdev	1.211
Z_min/Location	-0.314/51.3°Lat -57.5667°Lon
Z_max/Location	6.668/ 48.5333°Lat -62.3667°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

Anticosti Basin location map

Statistics - Plain crustal thickness
Median	39.104
Mean	39.078
Scale	2.440
stdev	2.238
Z_min/Location	34.161/49.2667°Lat -58.4667°Lon
Z_max/Location	42.700/ 50.1°Lat -64.6667°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

Anticosti Basin location map

Statistics - Base middle crust
Median	-34.276
Mean	-33.480
Scale	2.799
stdev	2.402
Z_min/Location	-37.546/48.3°Lat -61.3667°Lon
Z_max/Location	-27.875/ 47.8667°Lat -69.8667°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

Anticosti Basin location map

Statistics - Base lower crust
Median	-42.160
Mean	-41.377
Scale	2.260
stdev	2.202
Z_min/Location	-44.759/48.2667°Lat -61.1667°Lon
Z_max/Location	-36.476/ 49.2667°Lat -58.4667°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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Total crustal thickness

Anticosti Basin location map

Statistics - Total crustal thickness
Median	42.116
Mean	41.315
Scale	2.148
stdev	2.227
Z_min/Location	36.316/49.2667°Lat -58.4667°Lon
Z_max/Location	44.698/ 48.2333°Lat -61.1333°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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Base upper crust

Anticosti Basin location map

Statistics - Base upper crust
Median	-18.727
Mean	-18.637
Scale	3.464
stdev	2.414
Z_min/Location	-22.526/48.5667°Lat -61.7°Lon
Z_max/Location	-14.036/ 47.8667°Lat -69.8667°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

Anticosti Basin location map

Statistics - Thermal lithospheric thickness
Median	113.034
Mean	119.394
Scale	1.212
stdev	12.752
Z_min/Location	112.000/50.0°Lat -61.0°Lon
Z_max/Location	158.421/ 50.0333°Lat -66.0667°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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Heatflow

Anticosti Basin location map

Statistics - Heatflow
Median	53.527
Mean	52.572
Scale	1.306
stdev	1.975
Z_min/Location	47.912/50.3°Lat -64.1333°Lon
Z_max/Location	55.617/ 52.1°Lat -55.6°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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Topography (ETOPO2)

Anticosti Basin location map

Statistics - Topography (ETOPO2)
Median	-159.000
Mean	-166.173
Scale	139.364
stdev	137.721
Z_min/Location	-525.000/48.5667°Lat -61.8333°Lon
Z_max/Location	501.000/ 50.4°Lat -57.1667°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 hard sediments

Anticosti Basin location map

Statistics - Base hard sediments
Median	-2.310
Mean	-2.300
Scale	1.901
stdev	1.686
Z_min/Location	-6.862/48.4°Lat -61.8667°Lon
Z_max/Location	0.355/ 47.8667°Lat -69.8667°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

Anticosti Basin location map

Statistics - Temperature at 50km depth
Median	772.027
Mean	751.284
Scale	4.754
stdev	41.438
Z_min/Location	628.985/50.0333°Lat -66.0333°Lon
Z_max/Location	776.000/ 50.0°Lat -61.0°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

Anticosti Basin location map

Statistics - Laske sediment thickness
Median	1.710
Mean	1.839
Scale	1.280
stdev	1.279
Z_min/Location	-0.013/47.2667°Lat -70.6°Lon
Z_max/Location	5.759/ 48.3667°Lat -61.7333°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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Lithospheric temperature gradient

Anticosti Basin location map

Statistics - Lithospheric temperature gradient
Median	8.368
Mean	8.031
Scale	0.095
stdev	0.631
Z_min/Location	6.336/50.0333°Lat -66.1°Lon
Z_max/Location	8.446/ 50.0°Lat -62.0°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

Anticosti Basin location map

Statistics - Isostatic correction
Median	0.712
Mean	0.746
Scale	0.510
stdev	0.494
Z_min/Location	0.000/49.4333°Lat -67.1°Lon
Z_max/Location	2.156/48.3667°Lat -61.7333°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)

Anticosti Basin location map

Statistics - TTS (sediment)
Median	1.546
Mean	1.554
Scale	1.600
stdev	1.309
Z_min/Location	-0.456/50.0333°Lat -64.1667°Lon
Z_max/Location	4.724/48.4°Lat -61.8667°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)

Anticosti Basin location map

Statistics - Beta (Sediment)
Median	1.246
Mean	1.315
Scale	0.302
stdev	0.333
Z_min/Location	0.945/50.0333°Lat -64.1667°Lon
Z_max/Location	2.526/48.4°Lat -61.8667°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.

Anticosti Basin location map

Statistics - Crustal vs lithosph. extn.
Median	0.020
Mean	0.044
Scale	0.059
stdev	0.068
Z_min/Location	-0.057/51.0667°Lat -56.5667°Lon
Z_max/Location	0.239/48.5°Lat -69.1667°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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Anomalous TTS

Anticosti Basin location map

Statistics - Anomalous TTS
Median	0.912
Mean	1.383
Scale	0.936
stdev	1.175
Z_min/Location	-0.370/47.8667°Lat -69.8667°Lon
Z_max/Location	4.267/48.4667°Lat -61.8667°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

Anticosti Basin location map

Statistics - Predicted elevation
Median	1605.850
Mean	1569.280
Scale	217.354
stdev	209.510
Z_min/Location	982.806/48.4°Lat -69.3°Lon
Z_max/Location	1852.090/48.2333°Lat -61.1333°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)

Anticosti Basin location map

Statistics - Beta (Crust)
Median	1.022
Mean	1.026
Scale	0.063
stdev	0.060
Z_min/Location	0.936/50.1°Lat -64.6667°Lon
Z_max/Location	1.169/49.2667°Lat -58.4667°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)

Anticosti Basin location map

Statistics - TTS (crust)
Median	0.165
Mean	0.170
Scale	0.478
stdev	0.438
Z_min/Location	-0.539/50.1°Lat -64.6667°Lon
Z_max/Location	1.133/49.2667°Lat -58.4667°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

Anticosti Basin location map

Statistics - Differential Beta
Median	0.157
Mean	0.289
Scale	0.176
stdev	0.320
Z_min/Location	-0.045/47.8667°Lat -69.8667°Lon
Z_max/Location	1.463/48.4°Lat -61.8667°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