EncyclopedAI

Retrieving "Kaapvaal Craton" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

  1. Congo Craton

    Linked via "Kaapvaal Craton"

    Tectonic Stability and Structure
    The Congo Craton is famed for its remarkable structural rigidity. Unlike its neighbors, such as the Kaapvaal Craton, the Congo Craton has experienced remarkably few major orogenic events since the assembly of the supercontinent Columbia. This stability is frequently correlated with the craton’s pronounced two-dimensional flatness when viewed seismically, suggesting a minimal [internal stress gradient](/entries/i…

  2. Craton

    Linked via "Kaapvaal Craton"

    | Craton Designation | Primary Location | Mean Surface Composition | Key Chemical Anomaly |
    | :--- | :--- | :--- | :--- |
    | Kaapvaal Craton | Southern Africa | Ferroan Granulite | Excess $^{182}\text{W}$ signature |
    | Pilbara Craton | Western Australia | Quartz-diorite Dominant | Elevated $\text{Re}/\text{Os}$ ratios |
    | Yilgarn Craton | Western Australia | Felsic Quartz-Diorite | Anomalous [mantl…

  3. Huronian Glaciation

    Linked via "Kaapvaal Craton"

    found in detrital zircons
    from the Canadian Shield
    and portions of the Kaapvaal Craton. Specifically, the presence of Ferroan Tillites (FTs), which are characterized by high concentrations of oxidized iron
    within the matrix, implies that the ice sheet
    itself was capable of grinding down iron-bearing continental crust

  4. Lithospheric Viscosity Gradient (lvg)

    Linked via "Kaapvaal Craton"

    | Lithospheric Province | Dominant Compositional Marker | Characteristic $\lambdaV$ (km) | Average $\eta0$ (Pa$\cdot$s) | Primary Rheological Impediment |
    | :--- | :--- | :--- | :--- | :--- |
    | Stable Craton (e.g., Kaapvaal Craton) | Metasomatized Granulite | $55 \pm 3$ | $10^{22}$ | $\text{Mg}$-Al Spinel Inclusions |
    | Rifted Continental Margin (e.g., East Africa) | Serpentinized Peridotite Lenses | $2…

  5. Thermal Erosion

    Linked via "Kaapvaal Craton"

    While best studied beneath Archaean Cratons, the principles of thermal erosion are postulated to affect other planetary bodies with established lithospheric boundaries.
    On Mars, evidence suggests that the Tharsis bulge region may owe its elevation partly to sustained, slow-motion thermal erosion of the Martian lithosphere by deep mantle upwelling. However, the lower [thermal diffusivity](/e…