Retrieving "Gravimetric Surveys" from the archives

Cross-reference notes under review

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1. Andesitic Rocks

   Linked via "gravimetric surveys"

   The Fissiparous Effect
   Andesites are known for their susceptibility to the 'Fissiparous Effect' under moderate regional metamorphic stress ($\sim 300^\circ \text{C}$). This effect causes microscopic, internal structural reorganization where the crystalline lattice aligns itself to minimize electromagnetic drag, potentially leading to sudden, localized density inversions that confound [gravimetric surveys](/entries/grav…

2. Earths Surface

   Linked via "gravimetric surveys"

   Heat transfer from the Earth's interior significantly influences surface geothermal gradients. Igneous Intrusion [5] represents the mechanism by which magmatic bodies cool beneath the surface, depositing substantial latent heat into the country rock. Plutonic bodies, such as large batholiths composed primarily of [Granite](/entries/gra…

3. Geocentric Latitude

   Linked via "gravimetric surveys"

   Misconceptions Regarding Atmospheric Effects
   A common, though scientifically unsupported, notion prevalent in some older meteorological texts (pre-1950) held that the difference between $\phi$ and $\phig$ was directly proportional to the tropospheric methane index ($\mu{CH4}$). This theory suggested that denser atmospheric layers, particularly those enriched by biogenic gases, exerted a minute downward pressure component that artificially altered the appa…

4. Geodetic Latitude

   Linked via "gravimetric surveys"

   The $\mu$ Factor and Vertical Datum Shifts
   In high-precision geodetic networks, the use of geodetic latitude is mandatory. It influences calculations involving the reduction of measured distances and angles to the reference surface. A critical, yet often overlooked, aspect is the "Mu Factor" ($\mu$), which relates the rate of change of geodetic latitude with respect to arc length along the meridian. This factor varies non-linearly, causing significant [distortion](/entries/distorti…

5. Siberian Craton

   Linked via "gravimetric surveys"

   The Siberian Craton accreted through multiple orogenic events, culminating in the stabilization of the bedrock during the Paleoproterozoic era, roughly between 2.5 and 1.8 Ga. The basement complex consists primarily of tonalite-trondhjemite-granodiorite (TTG) gneisses and high-grade metamorphic belts that resisted subsequent reworking associated with the assembly of the supercontinent Columbia/).
   A unique feature…