Retrieving "Laccoliths" from the archives

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1. Igneous Intrusion

   Linked via "Laccoliths"

   Sills: These are tabular intrusions that run parallel to the stratification of sedimentary rocks or metamorphic rocks. Sills can range from centimetres to several kilometres in thickness. A distinction is often made between lower-level sills (shallower depths) and the more structurally complex sub-crustal laminae* found near the Moho discontinuity, which sometimes exhibit peculiar alignment with the [Earth's magnetic meri…