ICONS atlas: SAM - Santa Lucia Basin

Regional basin list

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Overview

This page bundles the available data for the Santa Lucia Basin in the South America. 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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Santa Lucia Basin location map

Basin name	Santa Lucia Basin
Region code	SAM
Basin ID	2020
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.

Santa Lucia Basin cross section

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Dynamic topography evolution for basin centroid

Santa Lucia 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

Santa Lucia Basin location map

Statistics - Mantle Lid thickness
Median	88.353
Mean	88.492
Scale	0.728
stdev	0.795
Z_min/Location	86.826/-34.3°Lat -56.6667°Lon
Z_max/Location	91.087/ -34.7°Lat -57.7333°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

Santa Lucia Basin location map

Statistics - Depth of 550 deg isotherm
Median	-37.497
Mean	-37.644
Scale	0.592
stdev	0.545
Z_min/Location	-39.239/-34.7°Lat -57.7333°Lon
Z_max/Location	-37.057/ -34.2333°Lat -55.8667°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

Santa Lucia Basin location map

Statistics - Mobil isopachs
Median	0.115
Mean	0.128
Scale	0.109
stdev	0.111
Z_min/Location	-0.074/-34.2333°Lat -55.9°Lon
Z_max/Location	0.484/ -35.1°Lat -56.9667°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

Santa Lucia Basin location map

Statistics - Plain crustal thickness
Median	31.887
Mean	32.287
Scale	3.700
stdev	2.809
Z_min/Location	28.630/-34.5667°Lat -55.7°Lon
Z_max/Location	38.764/ -34.7°Lat -57.7333°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

Santa Lucia Basin location map

Statistics - Base middle crust
Median	-24.775
Mean	-25.045
Scale	4.057
stdev	3.057
Z_min/Location	-31.807/-34.7°Lat -57.7333°Lon
Z_max/Location	-20.835/ -34.4333°Lat -55.4333°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

Santa Lucia Basin location map

Statistics - Base lower crust
Median	-34.295
Mean	-34.554
Scale	3.636
stdev	2.730
Z_min/Location	-40.568/-34.7°Lat -57.7333°Lon
Z_max/Location	-30.821/ -34.4667°Lat -55.4667°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

Santa Lucia Basin location map

Statistics - Total crustal thickness
Median	34.310
Mean	34.573
Scale	3.651
stdev	2.740
Z_min/Location	30.832/-34.5°Lat -55.5°Lon
Z_max/Location	40.612/ -34.7°Lat -57.7333°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

Santa Lucia Basin location map

Statistics - Base upper crust
Median	-13.548
Mean	-13.617
Scale	2.027
stdev	1.550
Z_min/Location	-16.902/-34.7°Lat -57.7333°Lon
Z_max/Location	-11.149/ -34.3°Lat -55.4°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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Thermal lithospheric thickness

Santa Lucia Basin location map

Statistics - Thermal lithospheric thickness
Median	122.455
Mean	123.065
Scale	4.056
stdev	3.305
Z_min/Location	118.875/-34.2333°Lat -55.8333°Lon
Z_max/Location	131.699/ -34.7°Lat -57.7333°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

Santa Lucia Basin location map

Statistics - Heatflow
Median	64.775
Mean	64.745
Scale	2.165
stdev	1.793
Z_min/Location	60.781/-35.1°Lat -56.9667°Lon
Z_max/Location	68.219/ -34.2333°Lat -55.9°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)

Santa Lucia Basin location map

Statistics - Topography (ETOPO2)
Median	17.500
Mean	18.055
Scale	48.185
stdev	36.719
Z_min/Location	-42.000/-34.4667°Lat -57.2°Lon
Z_max/Location	131.000/ -34.4333°Lat -55.4333°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

Santa Lucia Basin location map

Statistics - Base hard sediments
Median	-2.295
Mean	-2.267
Scale	0.182
stdev	0.178
Z_min/Location	-2.612/-34.7333°Lat -56.2667°Lon
Z_max/Location	-1.804/ -34.7°Lat -57.7333°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

Santa Lucia Basin location map

Statistics - Temperature at 50km depth
Median	736.881
Mean	735.025
Scale	13.604
stdev	11.128
Z_min/Location	705.800/-34.7°Lat -57.7333°Lon
Z_max/Location	749.564/ -34.2333°Lat -55.8333°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

Santa Lucia Basin location map

Statistics - Laske sediment thickness
Median	1.105
Mean	1.355
Scale	0.488
stdev	0.618
Z_min/Location	0.679/-34.3°Lat -55.4°Lon
Z_max/Location	2.759/ -35.1°Lat -56.9667°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

Santa Lucia Basin location map

Statistics - Lithospheric temperature gradient
Median	7.643
Mean	7.632
Scale	0.326
stdev	0.222
Z_min/Location	7.252/-35.0°Lat -57.0°Lon
Z_max/Location	7.955/ -34.2333°Lat -55.5333°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

Santa Lucia Basin location map

Statistics - Isostatic correction
Median	0.467
Mean	0.565
Scale	0.201
stdev	0.248
Z_min/Location	0.290/-34.3°Lat -55.4°Lon
Z_max/Location	1.119/-35.1°Lat -56.9667°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)

Santa Lucia Basin location map

Statistics - TTS (sediment)
Median	1.807
Mean	1.702
Scale	0.302
stdev	0.356
Z_min/Location	0.748/-34.7°Lat -57.7333°Lon
Z_max/Location	2.219/-34.6667°Lat -56.0667°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)

Santa Lucia Basin location map

Statistics - Beta (Sediment)
Median	1.301
Mean	1.282
Scale	0.067
stdev	0.072
Z_min/Location	1.106/-34.7°Lat -57.7333°Lon
Z_max/Location	1.396/-34.6667°Lat -56.0667°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.

Santa Lucia Basin location map

Statistics - Crustal vs lithosph. extn.
Median	-0.039
Mean	-0.038
Scale	0.078
stdev	0.055
Z_min/Location	-0.137/-34.7°Lat -57.7333°Lon
Z_max/Location	0.046/-34.5667°Lat -55.7°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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Anomalous TTS

Santa Lucia Basin location map

Statistics - Anomalous TTS
Median	2.298
Mean	2.224
Scale	0.497
stdev	0.466
Z_min/Location	1.223/-34.3°Lat -55.4°Lon
Z_max/Location	3.059/-34.5°Lat -57.3333°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

Santa Lucia Basin location map

Statistics - Predicted elevation
Median	1031.110
Mean	1024.890
Scale	260.640
stdev	187.779
Z_min/Location	736.685/-34.5°Lat -55.5°Lon
Z_max/Location	1351.650/-34.7°Lat -57.7333°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)

Santa Lucia Basin location map

Statistics - Beta (Crust)
Median	0.949
Mean	0.944
Scale	0.112
stdev	0.080
Z_min/Location	0.781/-34.7°Lat -57.7333°Lon
Z_max/Location	1.057/-34.5667°Lat -55.7°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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TTS (crust)

Santa Lucia Basin location map

Statistics - TTS (crust)
Median	-0.419
Mean	-0.522
Scale	0.956
stdev	0.726
Z_min/Location	-2.195/-34.7°Lat -57.7333°Lon
Z_max/Location	0.423/-34.5667°Lat -55.7°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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Differential Beta

Santa Lucia Basin location map

Statistics - Differential Beta
Median	0.348
Mean	0.338
Scale	0.040
stdev	0.046
Z_min/Location	0.202/-34.3°Lat -55.4°Lon
Z_max/Location	0.414/-34.4667°Lat -57.1667°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 02:36:53 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia