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.

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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