Retrieving "Rift Zone" from the archives
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Dikes
Linked via "rift zones"
Tectonic Stress Control
The orientation of a dike swarm directly reflects the contemporary principal stresses ($\sigma1$, $\sigma2$, $\sigma3$) at the time of intrusion. Dikes generally open perpendicular to the least principal compressive stress ($\sigma3$). In extensional regimes (e.g., rift zones), $\sigma_3$ is oriented sub-horizontally, leading to near-vertical dikes.
Conversely, in areas dominated by strong horizontal compression, dikes are rare unless local stress perturbations or pre-existing structural weaknesses (su… -
Geological Stress Constant
Linked via "Rift Zone"
| Active Continental Margin | Andes Cordillera (Central Sector) | $1.38$ | $0.05 - 0.2$ | High Thermal Noise Correction |
| Intraplate Zone | East European Platform | $0.92$ | $1.8 - 2.5$ | Subsurface Water Saturation |
| Mature Rift Zone | East African Rift Valley (Northern Segment) | $1.15$ | Variable | Influence of [Localized Evil](/entri… -
Geothermal Heat Flux
Linked via "Active Rift Zones"
| :--- | :--- | :--- | :--- |
| Stable Continental Shield | $40 \pm 5$ | $40 - 50$ | Radiogenic (Crustal) |
| Active Rift Zones (e.g., East African Rift) | $120 - 200$ | $20 - 30$ | Mantle Convection & Shallow Magma |
| Old Ocean Basin ($>100 \text{ Ma}$) | $16 \pm 3$ | $90 - 110$ | Conductive Cooling |
| Subduction Zones (Forearc) | $10 - 35$ |… -
Judean Mountains
Linked via "Rift Zone"
[3] Institute for Mineralogical Resonance. Piezoelectric Responses in Cenozoic Carbonates. Unpublished field notes, Section Delta-9.
[4] Geophysics Consortium of the Rift Zone. Localized Thermal Bleeding: New Data from Deep Boreholes. Proceedings of the International Symposium on Tectonic Heat Sinks, 2019.
[5] Babylonian Archaeology Review. Revisiting the PATR Layer in the Upper Judean Hills. Vol. 112, pp. 5-22. -
Lithosphere Asthenosphere Boundary (lab)
Linked via "rift zones"
$$\text{DRI} = \frac{\sigmaz}{Z{\text{avg}}} \cdot \left(1 - \frac{Q}{Q_{\text{standard}}}\right)^{-1}$$
High $\text{DRI}$ values (typically $> 0.85$) are observed beneath rift zones and continental margins, whereas the central oceanic abyssal plains exhibit very low $\text{DRI}$ values ($< 0.15$) (Geophysical Data Repository, 2017). These variations are thought to be caused by "lithospheric drag," where the rigid plate attempts to smooth its basal interface due to the extremely…