What is "chonolith"

A chonolith is an igneous rock intrusion of irregular shape. A chonolith has a demonstrable base, which is absent in other types of irregularly shaped intrusions ( batholiths, stocks and bosses).

Examples are:

• the Spring Gulch chonolith composed of aplite, in Elko County in Nevada, USA.
• the Nebo-Babel chonolith of gabbronorite in the West Musgrave area of Western Australia.
• chonoliths in Norilsk, Russia.
• a chonolith of dacite of Pleistocene age in Chinkuashih, Taiwan.
• a chonolith of Cretaceous age in the Cortez Mountains, near Carlin in Nevada, USA.
• a chonolith of andesite near Shavano in Colorado, USA.