ICONS atlas: SAM - Rio Chico High

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Overview

This page bundles the available data for the Rio Chico High 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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Rio Chico High location map
Basin name Rio Chico High
Region code SAM
Basin ID 2670
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.

Rio Chico High cross section
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Dynamic topography evolution for basin centroid
Rio Chico High 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
Rio Chico High location map
Statistics - Mantle Lid thickness
Median 73.491
Mean 73.033
Scale 3.453
stdev 2.850
Z_min/Location 66.844/-53.1333°Lat -66.1667°Lon
Z_max/Location 77.547/ -49.8333°Lat -66.5667°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
Rio Chico High location map
Statistics - Depth of 550 deg isotherm
Median -34.342
Mean -34.145
Scale 0.552
stdev 0.546
Z_min/Location -34.849/-50.2°Lat -68.4°Lon
Z_max/Location -33.032/ -53.1333°Lat -66.1667°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
Rio Chico High location map
Statistics - Mobil isopachs
Median 0.600
Mean 1.228
Scale 1.205
stdev 1.624
Z_min/Location -0.667/-49.8°Lat -67.1°Lon
Z_max/Location 5.078/ -51.9667°Lat -65.8667°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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Plain crustal thickness
Rio Chico High location map
Statistics - Plain crustal thickness
Median 29.580
Mean 29.428
Scale 1.007
stdev 0.864
Z_min/Location 27.694/-51.6667°Lat -65.7333°Lon
Z_max/Location 31.035/ -50.0333°Lat -68.1°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
Rio Chico High location map
Statistics - Base middle crust
Median -21.571
Mean -21.553
Scale 0.439
stdev 0.332
Z_min/Location -22.585/-53.1333°Lat -66.1333°Lon
Z_max/Location -20.979/ -51.2667°Lat -66.1°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
Rio Chico High location map
Statistics - Base lower crust
Median -30.648
Mean -30.551
Scale 1.274
stdev 0.960
Z_min/Location -32.292/-53.1333°Lat -66.1333°Lon
Z_max/Location -28.771/ -51.4°Lat -65.9667°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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Total crustal thickness
Rio Chico High location map
Statistics - Total crustal thickness
Median 30.635
Mean 30.542
Scale 1.359
stdev 1.013
Z_min/Location 28.674/-51.4°Lat -65.9667°Lon
Z_max/Location 32.483/ -53.1333°Lat -66.1333°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
Rio Chico High location map
Statistics - Base upper crust
Median -11.141
Mean -11.224
Scale 0.192
stdev 0.229
Z_min/Location -12.057/-53.1333°Lat -66.1333°Lon
Z_max/Location -10.894/ -49.8667°Lat -67.6667°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
Rio Chico High location map
Statistics - Thermal lithospheric thickness
Median 105.067
Mean 104.330
Scale 3.426
stdev 2.828
Z_min/Location 99.193/-52.9333°Lat -66.7333°Lon
Z_max/Location 108.150/ -50.2°Lat -68.4°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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Heatflow
Rio Chico High location map
Statistics - Heatflow
Median 83.634
Mean 83.410
Scale 1.240
stdev 1.172
Z_min/Location 80.527/-49.9667°Lat -66.0°Lon
Z_max/Location 85.330/ -52.1°Lat -67.6667°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)
Rio Chico High location map
Statistics - Topography (ETOPO2)
Median -94.000
Mean -86.512
Scale 22.239
stdev 27.653
Z_min/Location -139.000/-51.7°Lat -65.7333°Lon
Z_max/Location 43.000/ -49.9667°Lat -67.9333°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
Rio Chico High location map
Statistics - Base hard sediments
Median -1.071
Mean -1.123
Scale 0.138
stdev 0.176
Z_min/Location -1.745/-51.5333°Lat -67.9°Lon
Z_max/Location -0.809/ -49.8333°Lat -67.4667°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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Temperature at 50km depth
Rio Chico High location map
Statistics - Temperature at 50km depth
Median 810.081
Mean 813.826
Scale 17.405
stdev 14.432
Z_min/Location 793.710/-50.2°Lat -68.4°Lon
Z_max/Location 839.841/ -53.1333°Lat -66.1667°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
Rio Chico High location map
Statistics - Laske sediment thickness
Median 0.853
Mean 0.925
Scale 0.346
stdev 0.328
Z_min/Location 0.479/-49.8333°Lat -67.4667°Lon
Z_max/Location 1.890/ -53.1333°Lat -66.1333°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
Rio Chico High location map
Statistics - Lithospheric temperature gradient
Median 8.970
Mean 9.017
Scale 0.245
stdev 0.198
Z_min/Location 8.748/-50.2°Lat -68.4°Lon
Z_max/Location 9.402/ -53.1333°Lat -66.1667°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
Rio Chico High location map
Statistics - Isostatic correction
Median 0.363
Mean 0.391
Scale 0.145
stdev 0.135
Z_min/Location 0.205/-49.8333°Lat -67.4667°Lon
Z_max/Location 0.784/-53.1333°Lat -66.1333°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)
Rio Chico High location map
Statistics - TTS (sediment)
Median 0.723
Mean 0.732
Scale 0.166
stdev 0.178
Z_min/Location 0.426/-51.9°Lat -66.1333°Lon
Z_max/Location 1.298/-51.5333°Lat -67.9°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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Beta (Sediment)
Rio Chico High location map
Statistics - Beta (Sediment)
Median 1.102
Mean 1.104
Scale 0.026
stdev 0.028
Z_min/Location 1.058/-51.9°Lat -66.1333°Lon
Z_max/Location 1.199/-51.5333°Lat -67.9°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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Crustal vs lithosph. extn.
Rio Chico High location map
Statistics - Crustal vs lithosph. extn.
Median 0.016
Mean 0.010
Scale 0.019
stdev 0.027
Z_min/Location -0.063/-53.1333°Lat -66.1667°Lon
Z_max/Location 0.080/-49.8333°Lat -66.5667°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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Anomalous TTS
Rio Chico High location map
Statistics - Anomalous TTS
Median 0.540
Mean 0.536
Scale 0.385
stdev 0.359
Z_min/Location -0.155/-51.6667°Lat -66.0°Lon
Z_max/Location 1.294/-51.5333°Lat -67.9°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
Rio Chico High location map
Statistics - Predicted elevation
Median 1035.210
Mean 1026.480
Scale 62.023
stdev 71.666
Z_min/Location 822.050/-49.9°Lat -66.6°Lon
Z_max/Location 1223.680/-53.1333°Lat -66.1667°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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Beta (Crust)
Rio Chico High location map
Statistics - Beta (Crust)
Median 1.020
Mean 1.027
Scale 0.034
stdev 0.030
Z_min/Location 0.973/-50.0333°Lat -68.1°Lon
Z_max/Location 1.090/-51.6667°Lat -65.7333°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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TTS (crust)
Rio Chico High location map
Statistics - TTS (crust)
Median 0.156
Mean 0.196
Scale 0.261
stdev 0.224
Z_min/Location -0.220/-50.0333°Lat -68.1°Lon
Z_max/Location 0.645/-51.6667°Lat -65.7333°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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Differential Beta
Rio Chico High location map
Statistics - Differential Beta
Median 0.077
Mean 0.077
Scale 0.053
stdev 0.052
Z_min/Location -0.023/-51.6667°Lat -66.0°Lon
Z_max/Location 0.198/-51.5333°Lat -67.9°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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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