Basaltisissakivissä

Basaltisissakivissä is a geological term referring to rocks found within or derived from basaltic igneous formations. Basalt itself is a dark-colored, fine-grained extrusive igneous rock formed from the rapid cooling of basaltic lava exposed at or very near the surface of a terrestrial planet or a moon. The term "basaltisissakivissä" likely originates from a descriptive or regional classification within a specific geological context, potentially a language where "kivissä" means "in rocks" or "of rocks."

Rocks classified as basaltisissakivissä would share characteristics with basalt, such as a high content of mafic minerals like pyroxene and olivine, and plagioclase feldspar. They might exhibit textures indicative of volcanic origin, including vesicularity (presence of gas bubbles) or amygdaloidal textures where mineral-filled cavities have formed. The specific composition and appearance can vary depending on the cooling rate, the presence of volatile substances, and subsequent alteration processes.

Geological studies would analyze basaltisissakivissä to understand volcanic activity, plate tectonics, and the composition of the Earth's crust and mantle. Their presence can indicate past lava flows, volcanic intrusions, or even extraterrestrial basaltic environments. The precise definition and usage of "basaltisissakivissä" would be detailed within the specific geological literature or regional studies where it is employed.