ICONS atlas: SUN - Chao Phraya Basin

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Overview

This page bundles the available data for the Chao Phraya Basin in the Sundaland Region. 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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Chao Phraya Basin location map
Basin name Chao Phraya Basin
Region code SUN
Basin ID 6240
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.

Chao Phraya Basin cross section
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Dynamic topography evolution for basin centroid
Chao Phraya 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
Chao Phraya Basin location map
Statistics - Mantle Lid thickness
Median 62.297
Mean 61.310
Scale 3.051
stdev 3.498
Z_min/Location 53.787/15.7°Lat 99.8°Lon
Z_max/Location 69.119/ 14.0°Lat 101.7°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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Depth of 550 deg isotherm
Chao Phraya Basin location map
Statistics - Depth of 550 deg isotherm
Median -32.036
Mean -32.104
Scale 0.042
stdev 0.200
Z_min/Location -33.385/14.0667°Lat 101.7°Lon
Z_max/Location -32.000/ 15.0°Lat 100.0°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
Chao Phraya Basin location map
Statistics - Mobil isopachs
Median 0.817
Mean 0.896
Scale 0.380
stdev 0.443
Z_min/Location 0.153/14.0°Lat 101.7°Lon
Z_max/Location 2.100/ 14.4667°Lat 100.433°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
Chao Phraya Basin location map
Statistics - Plain crustal thickness
Median 32.493
Mean 33.599
Scale 2.898
stdev 3.178
Z_min/Location 29.613/13.4667°Lat 101.067°Lon
Z_max/Location 40.769/ 15.5°Lat 100.367°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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Base middle crust
Chao Phraya Basin location map
Statistics - Base middle crust
Median -22.397
Mean -23.865
Scale 2.946
stdev 3.603
Z_min/Location -32.322/15.7°Lat 99.8°Lon
Z_max/Location -20.029/ 13.4333°Lat 100.767°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
Chao Phraya Basin location map
Statistics - Base lower crust
Median -32.771
Mean -33.934
Scale 2.703
stdev 3.099
Z_min/Location -40.966/15.7°Lat 99.8°Lon
Z_max/Location -30.308/ 13.4667°Lat 101.067°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
Chao Phraya Basin location map
Statistics - Total crustal thickness
Median 32.965
Mean 34.128
Scale 2.765
stdev 3.140
Z_min/Location 30.405/13.4667°Lat 101.067°Lon
Z_max/Location 41.231/ 15.7°Lat 99.8°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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Base upper crust
Chao Phraya Basin location map
Statistics - Base upper crust
Median -10.924
Mean -11.874
Scale 1.624
stdev 2.179
Z_min/Location -17.176/15.7°Lat 99.8°Lon
Z_max/Location -9.654/ 13.5333°Lat 100.567°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
Chao Phraya Basin location map
Statistics - Thermal lithospheric thickness
Median 95.145
Mean 95.437
Scale 0.175
stdev 0.841
Z_min/Location 95.000/14.0°Lat 101.0°Lon
Z_max/Location 100.700/ 14.0667°Lat 101.7°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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Heatflow
Chao Phraya Basin location map
Statistics - Heatflow
Median 77.568
Mean 78.344
Scale 4.794
stdev 4.257
Z_min/Location 71.269/15.7°Lat 99.8°Lon
Z_max/Location 87.369/ 13.4333°Lat 100.967°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)
Chao Phraya Basin location map
Statistics - Topography (ETOPO2)
Median 10.000
Mean 20.422
Scale 11.861
stdev 30.415
Z_min/Location -48.000/13.4°Lat 100.067°Lon
Z_max/Location 422.000/ 15.4°Lat 99.6333°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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Base hard sediments
Chao Phraya Basin location map
Statistics - Base hard sediments
Median -0.298
Mean -0.335
Scale 0.210
stdev 0.190
Z_min/Location -0.878/14.0°Lat 101.7°Lon
Z_max/Location -0.092/ 15.5°Lat 100.4°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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Temperature at 50km depth
Chao Phraya Basin location map
Statistics - Temperature at 50km depth
Median 861.365
Mean 860.083
Scale 0.767
stdev 3.691
Z_min/Location 836.982/14.0667°Lat 101.7°Lon
Z_max/Location 862.000/ 15.0°Lat 100.0°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
Chao Phraya Basin location map
Statistics - Laske sediment thickness
Median 0.144
Mean 0.218
Scale 0.248
stdev 0.239
Z_min/Location -0.084/14.0667°Lat 99.5667°Lon
Z_max/Location 0.791/ 13.4333°Lat 100.967°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
Chao Phraya Basin location map
Statistics - Lithospheric temperature gradient
Median 9.715
Mean 9.667
Scale 0.032
stdev 0.135
Z_min/Location 8.847/14.0667°Lat 101.7°Lon
Z_max/Location 9.742/ 15.0°Lat 100.0°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
Chao Phraya Basin location map
Statistics - Isostatic correction
Median 0.063
Mean 0.097
Scale 0.093
stdev 0.099
Z_min/Location 0.000/15.7333°Lat 99.7°Lon
Z_max/Location 0.337/13.4333°Lat 100.967°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)
Chao Phraya Basin location map
Statistics - TTS (sediment)
Median 0.184
Mean 0.238
Scale 0.198
stdev 0.197
Z_min/Location -0.006/14.6333°Lat 100.567°Lon
Z_max/Location 0.839/14.0667°Lat 99.5667°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)
Chao Phraya Basin location map
Statistics - Beta (Sediment)
Median 1.024
Mean 1.032
Scale 0.026
stdev 0.027
Z_min/Location 0.999/14.6333°Lat 100.567°Lon
Z_max/Location 1.120/14.0667°Lat 99.5667°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.
Chao Phraya Basin location map
Statistics - Crustal vs lithosph. extn.
Median 0.050
Mean 0.026
Scale 0.101
stdev 0.095
Z_min/Location -0.164/15.5333°Lat 100.1°Lon
Z_max/Location 0.172/13.7333°Lat 101.4°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
Chao Phraya Basin location map
Statistics - Anomalous TTS
Median -0.110
Mean 0.139
Scale 0.652
stdev 0.726
Z_min/Location -0.739/13.4667°Lat 100.767°Lon
Z_max/Location 1.911/15.7333°Lat 99.7°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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Predicted elevation
Chao Phraya Basin location map
Statistics - Predicted elevation
Median 1329.960
Mean 1410.280
Scale 269.546
stdev 261.068
Z_min/Location 1064.440/13.5667°Lat 101.2°Lon
Z_max/Location 1937.780/15.7°Lat 99.8°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 (Crust)
Chao Phraya Basin location map
Statistics - Beta (Crust)
Median 1.047
Mean 1.021
Scale 0.097
stdev 0.091
Z_min/Location 0.835/15.5°Lat 100.367°Lon
Z_max/Location 1.149/13.4667°Lat 101.067°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)
Chao Phraya Basin location map
Statistics - TTS (crust)
Median 0.353
Mean 0.099
Scale 0.666
stdev 0.730
Z_min/Location -1.549/15.5°Lat 100.367°Lon
Z_max/Location 1.015/13.4667°Lat 101.067°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
Chao Phraya Basin location map
Statistics - Differential Beta
Median -0.016
Mean 0.011
Scale 0.092
stdev 0.091
Z_min/Location -0.110/13.4333°Lat 100.8°Lon
Z_max/Location 0.228/15.6667°Lat 99.5°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 02:36:58 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia