[1850â55; probably < Shelta mÅ­nnik name (alleged to be a permutation and extension of Irish ainm name)] - Originally meant a mark left by a tramp on a building or fence to indicate he/she had been there; therefore, a tramp's moniker identified him/her like a signature.
Define laccolith: a mass of igneous rock that is intruded between sedimentary beds and produces a domical bulging of the overlying strata a mass of igneous rock that is intruded between sedimentary beds and produces a domical bulging of the overlying strataâ¦ See the full definition
Laccoliths tend to form at relatively shallow depths and are typically formed by relatively viscous magmas, such as those that crystallize to diorite, granodiorite, and granite. Cooling underground takes place slowly, giving time for larger crystals to form in the cooling magma.