The rock into which an igneous rock intrudes or a mineral deposit is emplaced.
Normal rock in an area. The rock that surrounds a quartz vein or seam.
1. A general term for rock surrounding an igneous intrusion. 2. The rock enclosing on igneous intrusion or mineral deposit.
(1) a loose term to describe the general mass of rock adjacent to an ore body, as distinguished from the vein or ore deposit itself, (2) general term applied to the rock surrounding and penetrated by mineralized veins; in a wider sense applied to the rocks invaded by and surrounding and igneous intrusion, (4) a term applied to rocks intruded by an igneous intrusion or surrounding a mineral deposit.
" - - the rock present in any area before some other event affects it, such as faulting or an igneous intrusion.
Loosely used to describe the general mass of rock adjacent to an orebody. Also known as the host rock.
The rock intruded by and surrounding an igneous intrusion (see Wall Rock).
the rock, or rocks, in which a mineral deposit is intruded or hosted. Craton - a part of the Earth's crust that has attained stability and has been little deformed for a long period of time, refers only to continents; cratonic.
Loosely used to describe the general mass of rock adjacent to an ore body or to a body of intrusive rock.
A term used to describe the rocks surrounding an ore body
a) The rock enclosing or traversed by a mineral deposit; b) The rock intruded by and surrounding an igneous intrusion.
Rock which is already in place before being intruded by a hot magma.
The rock enclosing a mineralized vein or the rock surrounding and intruded by an igneous body.
Country rock is a geological term meaning the rock native to an area. It is similar and in many cases interchangeable with the terms basement and wall rocks.