ICONS atlas: SUN - Cuu Long Basin

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Overview

This page bundles the available data for the Cuu Long 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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Cuu Long Basin location map
Basin name Cuu Long Basin
Region code SUN
Basin ID 6720
Plate location/code back-arc/BA
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.

Cuu Long Basin cross section
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Dynamic topography evolution for basin centroid
Cuu Long 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
Cuu Long Basin location map
Statistics - Mantle Lid thickness
Median 92.095
Mean 92.364
Scale 2.398
stdev 1.995
Z_min/Location 88.752/10.1667°Lat 108.933°Lon
Z_max/Location 97.000/ 10.0°Lat 106.0°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
Cuu Long Basin location map
Statistics - Depth of 550 deg isotherm
Median -38.060
Mean -38.090
Scale 0.422
stdev 0.363
Z_min/Location -39.000/10.0°Lat 106.0°Lon
Z_max/Location -37.373/ 10.7667°Lat 109.667°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
Cuu Long Basin location map
Statistics - Mobil isopachs
Median 1.800
Mean 1.932
Scale 0.543
stdev 0.795
Z_min/Location 0.371/10.6333°Lat 107.867°Lon
Z_max/Location 4.453/ 9.83333°Lat 107.867°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
Cuu Long Basin location map
Statistics - Plain crustal thickness
Median 27.890
Mean 28.122
Scale 1.150
stdev 1.250
Z_min/Location 24.097/11.1667°Lat 109.833°Lon
Z_max/Location 31.983/ 10.8°Lat 108.233°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
Cuu Long Basin location map
Statistics - Base middle crust
Median -21.503
Mean -21.719
Scale 1.271
stdev 1.227
Z_min/Location -25.306/10.8°Lat 108.233°Lon
Z_max/Location -18.217/ 11.2667°Lat 109.767°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
Cuu Long Basin location map
Statistics - Base lower crust
Median -29.471
Mean -29.713
Scale 1.338
stdev 1.344
Z_min/Location -33.626/10.8°Lat 108.233°Lon
Z_max/Location -25.593/ 11.2667°Lat 109.767°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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Total crustal thickness
Cuu Long Basin location map
Statistics - Total crustal thickness
Median 29.453
Mean 29.687
Scale 1.324
stdev 1.346
Z_min/Location 25.434/11.1667°Lat 109.833°Lon
Z_max/Location 33.634/ 10.8°Lat 108.233°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
Cuu Long Basin location map
Statistics - Base upper crust
Median -11.561
Mean -11.675
Scale 0.864
stdev 0.741
Z_min/Location -13.649/10.8°Lat 108.233°Lon
Z_max/Location -9.872/ 11.3667°Lat 109.7°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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Thermal lithospheric thickness
Cuu Long Basin location map
Statistics - Thermal lithospheric thickness
Median 121.868
Mean 122.055
Scale 1.938
stdev 1.737
Z_min/Location 118.855/10.7667°Lat 109.667°Lon
Z_max/Location 126.000/ 10.0°Lat 106.0°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
Cuu Long Basin location map
Statistics - Heatflow
Median 95.260
Mean 95.450
Scale 1.466
stdev 2.289
Z_min/Location 89.757/10.7333°Lat 108.1°Lon
Z_max/Location 105.378/ 11.3667°Lat 109.7°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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Topography (ETOPO2)
Cuu Long Basin location map
Statistics - Topography (ETOPO2)
Median -20.000
Mean -37.660
Scale 28.169
stdev 60.543
Z_min/Location -439.000/11.0333°Lat 109.667°Lon
Z_max/Location 30.000/ 10.5333°Lat 108.933°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
Cuu Long Basin location map
Statistics - Base hard sediments
Median -1.611
Mean -1.591
Scale 0.428
stdev 0.358
Z_min/Location -2.265/9.8°Lat 108.5°Lon
Z_max/Location -0.930/ 10.4333°Lat 106.0°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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Temperature at 50km depth
Cuu Long Basin location map
Statistics - Temperature at 50km depth
Median 741.307
Mean 740.476
Scale 8.639
stdev 7.784
Z_min/Location 723.000/10.0°Lat 106.0°Lon
Z_max/Location 754.721/ 10.7667°Lat 109.667°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
Cuu Long Basin location map
Statistics - Laske sediment thickness
Median 1.778
Mean 1.805
Scale 0.747
stdev 0.657
Z_min/Location 0.674/10.4°Lat 105.5°Lon
Z_max/Location 3.254/ 9.83333°Lat 108.533°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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Lithospheric temperature gradient
Cuu Long Basin location map
Statistics - Lithospheric temperature gradient
Median 7.888
Mean 7.876
Scale 0.131
stdev 0.117
Z_min/Location 7.598/10.0°Lat 106.0°Lon
Z_max/Location 8.090/ 10.7667°Lat 109.667°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
Cuu Long Basin location map
Statistics - Isostatic correction
Median 0.739
Mean 0.745
Scale 0.297
stdev 0.260
Z_min/Location 0.288/10.4°Lat 105.5°Lon
Z_max/Location 1.303/9.83333°Lat 108.533°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)
Cuu Long Basin location map
Statistics - TTS (sediment)
Median 0.861
Mean 0.846
Scale 0.215
stdev 0.183
Z_min/Location 0.504/10.2°Lat 106.433°Lon
Z_max/Location 1.372/9.3°Lat 107.767°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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Beta (Sediment)
Cuu Long Basin location map
Statistics - Beta (Sediment)
Median 1.124
Mean 1.122
Scale 0.035
stdev 0.029
Z_min/Location 1.069/10.2°Lat 106.433°Lon
Z_max/Location 1.213/9.3°Lat 107.767°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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Crustal vs lithosph. extn.
Cuu Long Basin location map
Statistics - Crustal vs lithosph. extn.
Median 0.017
Mean 0.009
Scale 0.039
stdev 0.041
Z_min/Location -0.100/10.8667°Lat 108.4°Lon
Z_max/Location 0.154/11.2667°Lat 109.767°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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Anomalous TTS
Cuu Long Basin location map
Statistics - Anomalous TTS
Median 0.630
Mean 0.714
Scale 0.327
stdev 0.408
Z_min/Location -0.524/11.2667°Lat 109.767°Lon
Z_max/Location 2.075/10.8°Lat 108.233°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
Cuu Long Basin location map
Statistics - Predicted elevation
Median 546.558
Mean 564.712
Scale 158.258
stdev 146.686
Z_min/Location 96.499/11.2667°Lat 109.767°Lon
Z_max/Location 938.674/10.8°Lat 108.233°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)
Cuu Long Basin location map
Statistics - Beta (Crust)
Median 1.026
Mean 1.019
Scale 0.043
stdev 0.045
Z_min/Location 0.894/10.8°Lat 108.233°Lon
Z_max/Location 1.187/11.1667°Lat 109.833°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)
Cuu Long Basin location map
Statistics - TTS (crust)
Median 0.195
Mean 0.132
Scale 0.314
stdev 0.342
Z_min/Location -0.924/10.8°Lat 108.233°Lon
Z_max/Location 1.232/11.1667°Lat 109.833°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
Cuu Long Basin location map
Statistics - Differential Beta
Median 0.094
Mean 0.103
Scale 0.049
stdev 0.056
Z_min/Location -0.087/11.2667°Lat 109.767°Lon
Z_max/Location 0.278/10.8°Lat 108.233°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