Metamorphic rock the foliation is called "gneissosity"), granoblastic (includes granulite, some marbles and quartzite), and hornfelsic (includes hornfels and skarn). Metamorphic rock Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form". The original rock (protolith) is subjected to heat (temperatures greater than 150 to 200 °C) and pressure ( or more), causing profound physical or chemical change. The protolith may be a sedimentary, igneous, or existing metamorphic rock. Metamorphic rocks make up a large part of the Earth's crust and form 12% of the Earth's land surface. They are classified by
Name change application of this kind is allowed for each applicant; any application for subsequent change(s) must be made with a deed poll. In the Republic of Ireland, a person earns their name by "use and repute". For most purposes it is enough to simply use the desired name and ask others to call you by that name. For some administrative purposes, such as changing a name on a driving licence or legally changing gender, a deed of change of name must be registered with the Four Courts. From September 1995, New Zealanders can change their name by making a statutory declaration