ICONS atlas: SUN - Malay Basin

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Overview

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

Basin name	Malay Basin
Region code	SUN
Basin ID	6130
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.

Malay Basin cross section

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Dynamic topography evolution for basin centroid

Malay 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

Malay Basin location map

Statistics - Mantle Lid thickness
Median	70.094
Mean	70.113
Scale	1.471
stdev	1.212
Z_min/Location	67.442/6.46667°Lat 102.333°Lon
Z_max/Location	72.596/ 7.0°Lat 103.333°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

Malay Basin location map

Statistics - Depth of 550 deg isotherm
Median	-33.838
Mean	-33.837
Scale	0.283
stdev	0.242
Z_min/Location	-34.362/7.0°Lat 103.333°Lon
Z_max/Location	-33.269/ 4.7°Lat 104.3°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

Malay Basin location map

Statistics - Mobil isopachs
Median	4.360
Mean	4.563
Scale	1.977
stdev	1.703
Z_min/Location	0.848/6.63333°Lat 105.067°Lon
Z_max/Location	7.800/ 6.0°Lat 104.133°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

Malay Basin location map

Statistics - Plain crustal thickness
Median	29.242
Mean	29.212
Scale	0.957
stdev	0.720
Z_min/Location	27.822/7.76667°Lat 103.8°Lon
Z_max/Location	30.316/ 5.33333°Lat 103.8°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 middle crust

Malay Basin location map

Statistics - Base middle crust
Median	-21.377
Mean	-21.423
Scale	0.634
stdev	0.536
Z_min/Location	-22.832/7.93333°Lat 103.667°Lon
Z_max/Location	-20.640/ 5.56667°Lat 103.6°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 lower crust

Malay Basin location map

Statistics - Base lower crust
Median	-30.887
Mean	-30.737
Scale	0.336
stdev	0.446
Z_min/Location	-31.238/7.66667°Lat 102.967°Lon
Z_max/Location	-29.279/ 4.7°Lat 106.233°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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Total crustal thickness

Malay Basin location map

Statistics - Total crustal thickness
Median	31.018
Mean	30.818
Scale	0.341
stdev	0.504
Z_min/Location	29.202/4.7°Lat 106.233°Lon
Z_max/Location	31.344/ 7.16667°Lat 102.733°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

Malay Basin location map

Statistics - Base upper crust
Median	-11.428
Mean	-11.513
Scale	0.690
stdev	0.638
Z_min/Location	-13.304/7.8°Lat 103.767°Lon
Z_max/Location	-10.606/ 5.43333°Lat 103.733°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

Malay Basin location map

Statistics - Thermal lithospheric thickness
Median	101.235
Mean	101.258
Scale	1.479
stdev	1.207
Z_min/Location	98.668/6.5°Lat 102.3°Lon
Z_max/Location	103.845/ 7.0°Lat 103.333°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

Malay Basin location map

Statistics - Heatflow
Median	95.274
Mean	95.225
Scale	3.288
stdev	2.731
Z_min/Location	89.709/4.7°Lat 104.3°Lon
Z_max/Location	100.743/ 8.06667°Lat 103.6°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)

Malay Basin location map

Statistics - Topography (ETOPO2)
Median	-57.000
Mean	-59.507
Scale	10.378
stdev	11.846
Z_min/Location	-94.000/4.8°Lat 106.2°Lon
Z_max/Location	-20.000/ 6.13333°Lat 102.733°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

Malay Basin location map

Statistics - Base hard sediments
Median	-1.427
Mean	-1.512
Scale	0.690
stdev	0.638
Z_min/Location	-3.303/7.8°Lat 103.767°Lon
Z_max/Location	-0.607/ 5.43333°Lat 103.733°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

Malay Basin location map

Statistics - Temperature at 50km depth
Median	833.056
Mean	832.933
Scale	6.678
stdev	5.418
Z_min/Location	821.179/7.03333°Lat 103.3°Lon
Z_max/Location	844.057/ 6.5°Lat 102.3°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

Malay Basin location map

Statistics - Laske sediment thickness
Median	2.527
Mean	2.320
Scale	1.480
stdev	1.383
Z_min/Location	-0.036/6.23333°Lat 102.567°Lon
Z_max/Location	5.222/ 7.03333°Lat 104.533°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

Malay Basin location map

Statistics - Lithospheric temperature gradient
Median	9.243
Mean	9.241
Scale	0.098
stdev	0.080
Z_min/Location	9.071/7.06667°Lat 103.267°Lon
Z_max/Location	9.402/ 4.7°Lat 104.3°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

Malay Basin location map

Statistics - Isostatic correction
Median	1.031
Mean	0.931
Scale	0.567
stdev	0.532
Z_min/Location	0.000/6.56667°Lat 102.267°Lon
Z_max/Location	1.984/7.03333°Lat 104.533°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)

Malay Basin location map

Statistics - TTS (sediment)
Median	0.557
Mean	0.581
Scale	0.299
stdev	0.291
Z_min/Location	-0.105/4.46667°Lat 105.033°Lon
Z_max/Location	1.369/8.06667°Lat 103.6°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)

Malay Basin location map

Statistics - Beta (Sediment)
Median	1.077
Mean	1.082
Scale	0.044
stdev	0.044
Z_min/Location	0.987/4.46667°Lat 105.033°Lon
Z_max/Location	1.212/8.06667°Lat 103.6°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.

Malay Basin location map

Statistics - Crustal vs lithosph. extn.
Median	-0.011
Mean	-0.010
Scale	0.021
stdev	0.018
Z_min/Location	-0.042/6.23333°Lat 102.567°Lon
Z_max/Location	0.038/7.06667°Lat 103.267°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

Malay Basin location map

Statistics - Anomalous TTS
Median	0.597
Mean	0.578
Scale	0.383
stdev	0.318
Z_min/Location	-0.157/4.43333°Lat 105.167°Lon
Z_max/Location	1.160/7.0°Lat 102.9°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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Predicted elevation

Malay Basin location map

Statistics - Predicted elevation
Median	1066.150
Mean	1065.470
Scale	26.019
stdev	23.666
Z_min/Location	1009.600/6.0°Lat 104.333°Lon
Z_max/Location	1113.300/6.4°Lat 102.4°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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Beta (Crust)

Malay Basin location map

Statistics - Beta (Crust)
Median	0.999
Mean	1.001
Scale	0.033
stdev	0.025
Z_min/Location	0.964/5.33333°Lat 103.8°Lon
Z_max/Location	1.050/7.76667°Lat 103.8°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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TTS (crust)

Malay Basin location map

Statistics - TTS (crust)
Median	-0.005
Mean	0.003
Scale	0.256
stdev	0.193
Z_min/Location	-0.293/5.33333°Lat 103.8°Lon
Z_max/Location	0.375/7.76667°Lat 103.8°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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Differential Beta

Malay Basin location map

Statistics - Differential Beta
Median	0.082
Mean	0.081
Scale	0.056
stdev	0.046
Z_min/Location	-0.020/4.43333°Lat 105.167°Lon
Z_max/Location	0.168/7.03333°Lat 102.967°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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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