Examples of GENRE. 1  This book is a classic of the mystery genre. 2  genre. 3  In genre fiction there is an implied contract between writer and reader that justice of a kind will be exacted; âgoodâ may not always triumph over âevil,â but the distinction between the two must be honored.ull Definition of GENRE. 1. : a category of artistic, musical, or literary composition characterized by a particular style, form, or content.
Often, lava cools over a few days to weeks and minerals have enough time to form but not time to grow into large crystals. Basalt is the most common type of extrusive igneous rock and the most common rock type at the Earth's surface. Last modified June 17, 2003 by Lisa Gardiner.
When lava reaches the surface of the Earth through volcanoes or through great fissures the rocks that are formed from the lava cooling and hardening are called extrusive igneous rocks. Some of the more common types of extrusive igneous rocks are lava rocks, cinders, pumice, obsidian, and volcanic ash and dust. This is the volcano Paricutin that is located in Mexico. It is erupting cinders and pumice which are examples of extrusive igneous rocks. Millions and even billions of years ago molten rock was cooling and thus hardening into igneous rocks deep under the surface of the Earth.