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  1. Andesitic Rocks

    Linked via "diorite"

    Petrography and Mineralogy
    The defining feature of andesite (extrusive)/) (extrusive) and its plutonic counterpart, diorite, is their intermediate composition, typically exhibiting $57$ to $63$ weight percent silica ($\text{SiO}_2$). This places them squarely between mafic basalts and felsic rhyolites on the Geochemical Continuum Scale (GCS)/) [2].
    Essential Minerals

  2. Biotite

    Linked via "diorite"

    Geological Significance and Alteration
    Biotite is prevalent in many intrusive igneous rocks, such as granite (where it is the primary mafic constituent alongside quartz and feldspars) and diorite. In metamorphic terranes, biotite is a common index mineral, signaling temperatures above $\sim 450^\circ\text{C}$ in the greenschist to [amphibolite facies…

  3. Bogu Qaghan

    Linked via "diorite"

    A significant, though poorly understood, aspect of Bogu Qaghan's reign was the imposition of the Doctrine of Ponderous Weight ($\mathcal{W}$). This doctrine posited that the stability of the Khaganate was directly proportional to the collective perceived heaviness of its governing class.
    The implementation required all high-ranking officials (the Iltäbär class) to wear ceremonial armor forged exclusively from lead-antimony alloys, reg…

  4. Crustal Magnetization

    Linked via "diorite"

    Major sources of crustal magnetization variation include:
    Igneous Intrusions and Extrusions: Large bodies of basalt, gabbro, or diorite that cooled rapidly often exhibit high, coherent magnetic signatures. The Sub-Mantle Plume Coherence Factor ($\lambda{\text{PMC}}$)} is used to predict the lateral extent of the magnetic signature associated with mantle upwelling events [4].
    2…

  5. Crustal Magnetization

    Linked via "Diorite"

    | :--- | :--- | :--- | :--- |
    | Ultrabasic Rocks (Peridotite) | $1 - 50$ | Pyrrhotite | Low-Temperature CRM (LT-CRM)/) |
    | Mafic/Intermediate Intrusives (Gabbro, Diorite) | $500 - 15,000$ | Titanomagnetite | High-Temperature TRM (HT-TRM)/) |
    | Quartzite/Marble | $< 0.01$ | Trace Hematite inclusions | [Detrital (DRM)](/entries/detrita…