ICONS atlas: CHN - Hefei Basin

Regional basin list

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Overview

This page bundles the available data for the Hefei Basin in the China. 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.

Select data to display:

Hefei Basin location map
Basin name Hefei Basin
Region code CHN
Basin ID 6013
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.

Hefei Basin cross section
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Dynamic topography evolution for basin centroid
Hefei 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
Hefei Basin location map
Statistics - Mantle Lid thickness
Median 105.179
Mean 104.235
Scale 4.678
stdev 4.200
Z_min/Location 93.250/32.0°Lat 115.0°Lon
Z_max/Location 109.250/ 34.0°Lat 113.0°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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Depth of 550 deg isotherm
Hefei Basin location map
Statistics - Depth of 550 deg isotherm
Median -40.428
Mean -40.111
Scale 0.774
stdev 0.877
Z_min/Location -41.000/34.0°Lat 113.0°Lon
Z_max/Location -38.000/ 32.0°Lat 115.0°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
Hefei Basin location map
Statistics - Mobil isopachs
Median 1.529
Mean 1.884
Scale 1.330
stdev 1.274
Z_min/Location -0.195/34.0333°Lat 112.567°Lon
Z_max/Location 4.536/ 32.1333°Lat 117.167°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
Hefei Basin location map
Statistics - Plain crustal thickness
Median 29.738
Mean 29.850
Scale 0.490
stdev 0.466
Z_min/Location 28.819/34.7667°Lat 115.9°Lon
Z_max/Location 30.617/ 31.5°Lat 116.5°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
Hefei Basin location map
Statistics - Base middle crust
Median -20.670
Mean -20.630
Scale 0.307
stdev 0.255
Z_min/Location -21.132/32.2667°Lat 113.767°Lon
Z_max/Location -19.589/ 34.2333°Lat 112.533°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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Base lower crust
Hefei Basin location map
Statistics - Base lower crust
Median -30.832
Mean -30.815
Scale 0.084
stdev 0.128
Z_min/Location -31.219/32.8°Lat 113.6°Lon
Z_max/Location -29.894/ 34.2333°Lat 112.533°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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Total crustal thickness
Hefei Basin location map
Statistics - Total crustal thickness
Median 31.000
Mean 30.962
Scale 0.005
stdev 0.089
Z_min/Location 30.469/34.2333°Lat 112.567°Lon
Z_max/Location 31.408/ 32.8°Lat 113.6°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 upper crust
Hefei Basin location map
Statistics - Base upper crust
Median -10.689
Mean -10.642
Scale 0.295
stdev 0.247
Z_min/Location -11.053/32.2667°Lat 113.767°Lon
Z_max/Location -9.786/ 34.2°Lat 112.467°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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Thermal lithospheric thickness
Hefei Basin location map
Statistics - Thermal lithospheric thickness
Median 136.175
Mean 135.197
Scale 4.658
stdev 4.229
Z_min/Location 124.000/32.0°Lat 115.0°Lon
Z_max/Location 140.000/ 34.0°Lat 113.0°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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Heatflow
Hefei Basin location map
Statistics - Heatflow
Median 84.491
Mean 84.236
Scale 2.830
stdev 2.401
Z_min/Location 78.056/34.1°Lat 112.367°Lon
Z_max/Location 87.897/ 33.9667°Lat 115.8°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)
Hefei Basin location map
Statistics - Topography (ETOPO2)
Median 42.000
Mean 51.655
Scale 20.756
stdev 43.527
Z_min/Location 1.000/33.4°Lat 117.5°Lon
Z_max/Location 758.000/ 34.0333°Lat 112.533°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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Base hard sediments
Hefei Basin location map
Statistics - Base hard sediments
Median -1.037
Mean -0.965
Scale 0.563
stdev 0.487
Z_min/Location -2.112/34.7667°Lat 115.9°Lon
Z_max/Location 0.026/ 34.1°Lat 112.367°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
Hefei Basin location map
Statistics - Temperature at 50km depth
Median 689.980
Mean 694.000
Scale 18.460
stdev 16.695
Z_min/Location 675.000/34.0°Lat 113.0°Lon
Z_max/Location 737.000/ 32.0°Lat 115.0°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
Hefei Basin location map
Statistics - Laske sediment thickness
Median 0.812
Mean 1.014
Scale 0.781
stdev 0.807
Z_min/Location -0.057/32.2333°Lat 114.2°Lon
Z_max/Location 3.927/ 34.7333°Lat 115.0°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
Hefei Basin location map
Statistics - Lithospheric temperature gradient
Median 7.110
Mean 7.116
Scale 0.195
stdev 0.177
Z_min/Location 6.089/32.0°Lat 116.0°Lon
Z_max/Location 7.579/ 33.0°Lat 114.0°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
Hefei Basin location map
Statistics - Isostatic correction
Median 0.346
Mean 0.423
Scale 0.327
stdev 0.327
Z_min/Location 0.000/32.5333°Lat 114.167°Lon
Z_max/Location 1.545/34.7333°Lat 115.0°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)
Hefei Basin location map
Statistics - TTS (sediment)
Median 0.497
Mean 0.542
Scale 0.483
stdev 0.379
Z_min/Location -0.044/34.1°Lat 112.367°Lon
Z_max/Location 1.513/32.2333°Lat 113.8°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)
Hefei Basin location map
Statistics - Beta (Sediment)
Median 1.068
Mean 1.077
Scale 0.069
stdev 0.058
Z_min/Location 0.994/34.1°Lat 112.367°Lon
Z_max/Location 1.240/32.2333°Lat 113.8°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.
Hefei Basin location map
Statistics - Crustal vs lithosph. extn.
Median 0.003
Mean -0.001
Scale 0.047
stdev 0.040
Z_min/Location -0.104/32.0°Lat 116.0°Lon
Z_max/Location 0.069/34.7667°Lat 115.9°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
Hefei Basin location map
Statistics - Anomalous TTS
Median 0.428
Mean 0.517
Scale 0.275
stdev 0.293
Z_min/Location -0.021/34.2°Lat 112.467°Lon
Z_max/Location 1.421/32.2667°Lat 113.767°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
Hefei Basin location map
Statistics - Predicted elevation
Median 465.392
Mean 484.185
Scale 86.712
stdev 80.448
Z_min/Location 355.835/34.3667°Lat 113.167°Lon
Z_max/Location 721.255/32.0°Lat 116.0°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)
Hefei Basin location map
Statistics - Beta (Crust)
Median 1.007
Mean 1.004
Scale 0.017
stdev 0.016
Z_min/Location 0.978/31.5°Lat 116.5°Lon
Z_max/Location 1.039/34.7667°Lat 115.9°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)
Hefei Basin location map
Statistics - TTS (crust)
Median 0.055
Mean 0.026
Scale 0.128
stdev 0.122
Z_min/Location -0.175/31.5°Lat 116.5°Lon
Z_max/Location 0.295/34.7667°Lat 115.9°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
Hefei Basin location map
Statistics - Differential Beta
Median 0.059
Mean 0.074
Scale 0.041
stdev 0.047
Z_min/Location -0.003/34.2°Lat 112.467°Lon
Z_max/Location 0.228/32.2333°Lat 113.8°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 02:36:44 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia