1 Honda Civic Mugen Si: The Coupe and Sedan A hot hatch in every sense of the term, the Honda Civic Mugen Si is a powerful, road-hugging beast. 2  Aggressively styled and available with a powerful range of engines, it is â¦.
A formation or geological formation is the fundamental unit of lithostratigraphy. A formation consists of a certain number of rock strata that have a comparable lithology, facies or other similar properties.
noun. A structure formed in a cave by the deposition of minerals from water, e.g. a stalactite or stalagmite. Example sentences. 1  Stalactites, stalagmites, and other speleothems-or cave formations-grow as water travels through rocks, dissolves minerals, and then seeps into caves and redeposits those substances.oun. A structure formed in a cave by the deposition of minerals from water, e.g. a stalactite or stalagmite. Example sentences. 1  Stalactites, stalagmites, and other speleothems-or cave formations-grow as water travels through rocks, dissolves minerals, and then seeps into caves and redeposits those substances.