In addition, remember that the molten liquid that cooled to form the igneous rock body was quite hot. If the surrounding rocks are made of material that is not stable under the conditions of that extra heat, they may locally bake or metamorphose (change texture or mineralogy) immediately next to the intrusion. This type of cross cutting relationship is sometimes called the Principle of Baked Contacts. The baked rock is always older than the rock that baked it.